OBD-2 CODE Setting Criteria or How the CODE was set: Although the Generic OBD-2 code definitions are the same for all manufacturers; the code setting criteria (how the code is set) is different for each auto maker. General Motors has by far the most expansive code setting criteria, which differs between models, hence the length of this list. GENERAL MOTORS/SATURN P0030 H02S-11 Heater Control Circuit (Bank I Sensor 1) Fault: Key on or engine running, system voltage from 8-18v, then the ECM detected an incorrect circuit condition on the high side driver circuit for the H02S-11. P0036 H02S-12 Heater Control Circuit (Bank 1 Sensor 2) Fault: Key on, system voltage 8-18v, then the ECM detected an incorrect circuit condition on the low side driver circuit for the H02S-12. P0100 MAF Sensor Insufficient Activity Fault: No MAF sensor codes set, engine speed over 500 rpm, system voltage over 11v, then the ECM detected that the MAF sensor input varied less than a calculated minimum amount for 1 second. P0100 MAF Sensor Insufficient Activity Fault: No MAF sensor codes set, engine speed over 500 rpm, system voltage over 11v, then the ECM detected that the MAF sensor input varied less than a calculated minimum amount for 1 second. P0100 MAF Sensor Circuit Fault: Key on or engine running, engine speed below 3000 rpm, then the ECM detected a short to ground, an open circuit or a short to power in the MAF sensor circuit, condition met for 3 seconds. P0100 MAF Sensor System Performance Fault: DTC P1120 and P1220 not set, system voltage over 11v, engine speed over 500 rpm, then the ECM detected the MAF input was out of a calculated range for a given engine speed for 0.1 second. MULTIPLE INSTANCES OF THE SAME CODE: P0101 MAF Sensor Performance Fault: Engine running, system voltage from 10-18v, throttle angle less than 25%, MAP and TP sensor inputs steady for over 5 seconds, then the ECM detected that the difference between Actual MAF airflow and Predicted MAF airflow was over a calibrated value. P0101 MAF Sensor System Performance Fault: DTC P0100, P0102, P0103, P0107, P0108, P0122 and P0123 not set, system voltage 11-18v, engine speed over 500 rpm, then the ECM detected that the MAF sensor input varied less than a specified minimum amount, condition met for 1 second. P0101 MAF Sensor Performance Fault: No MAF or TP sensor codes set, system voltage over 11v, engine running, then the ECM did not detect any MAF input for 2 seconds P0101 MAF Sensor Performance Fault: Engine running, system voltage from 9-11v, throttle angle stable and below 50%, EGR Pintle position and duty cycle less than 50%, then the ECM detected that the Actual MAF sensor frequency was significantly lower than Calculated values based on the BARO, throttle position and engine speed inputs for at least 12 seconds. P0101 MAF Sensor Performance Fault: No CKP, EVAP, IAT, MAF, MAP or TP codes set, engine running, system voltage from 11-16v, Purge duty cycle under 99.6%, EGR duty cycle, EGR Pintle position and throttle angle all under 90%, change in throttle angle under 3.9%, Fault: met for 2 seconds, engine vacuum less than 65 kPa, and the ECM detected the Actual MAF input did not equal the Calculated MAF input for 5 seconds. P0101 MAF Sensor Performance Fault: No MAP, System Voltage or TP sensor codes set, system voltage from 11-18v, EVAP Purge duty cycle less than or equal to 90%, total EGR Pintle valve movement under 90%, throttle angle steady and under 50%, MAP input less than 65 kPa and steady, then the ECM detected the difference between Actual MAF and Predicted MAF was over the calibrated amount for 2.5 seconds. P0101 MAF Sensor Circuit Performance Fault: DTC P0102, P0103, P0107, P0108, P0121, P0122 and P0123 not set, engine runtime with system voltage 11-18v, throttle angle less than 50%, BARO sensor input over 65 kPa, TP sensor input less than 3%, EGR pintle position less than 90%, all Fault: stable for 2 seconds, then the ECM detected that the MAF frequency was 50% different from the Speed Density calculation for 5 seconds. P0101 MAF Sensor Performance Fault: No MAF or TP sensor codes set, system voltage over 11 v, engine speed over 500 rpm, throttle angle stable ± 1%, EGR duty cycle and EGR Pintle position less than 50%, then the ECM detected that the MAF input increased too much with no change in engine load, Fault: met for 12-20 seconds (time depends on engine). P0101 MAF Sensor System Performance Fault: P0102 P0103 not set, system voltage over 11v, engine speed 500-2800 rpm, throttle angle under 50%, MAP input over 40 kPa, then the ECM detected that the Actual MAF and Calculated input did not match during the test period. P0101 MAF Sensor Performance Fault: DTC P0102, P0103, P0106, P0107, P0108, P0121, P0122, P0123, P0560 and P1108 not set, P0101 not previously tested this key cycle, system voltage 11-18v, in closed loop, EVAP Purge duty cycle less than or equal to 99.6%, P0401 not testing, EGR Rescaled Pintle position less or equal to 240 counts, throttle angle less than or equal to 50 degrees, Traction Control inactive, 100 millisecond Delta MAP less than or equal to 5 kPa, then the ECM determined that the difference between Actual and Calculated MAF was too large. P0101 MAF Sensor Performance Fault: No CKP, EVAP, IAT, MAF, MAP or TP codes set, DTC P0102, P0103 and P0401 not active, engine running, system voltage from 10-17v, Purge duty cycle under 99.6%, EGR duty cycle and EGR Pintle position less than 90%, throttle angle less than 50%, change in throttle angle under 3.9%, engine vacuum less than 65 kPa, all Fault: met for 2 seconds, then the ECM detected the Actual MAF input did not equal the Calculated MAF input for 5 seconds. P0101 MAF Sensor Performance Fault: Engine running, ECT input less than 176°F, engine speed below 900 rpm, Throttle Valve closed, then the ECM detected that the MAF sensor input was more than 2.2v, or with engine speed more than 1500 rpm and the TP sensor input at least 0.63v, the ECM detected that the MAF input was below 1.06v for 10 seconds. P0101 MAF Sensor Performance Fault: No CKP, EVAP, IAT, MAF, MAP or TP sensor codes set, DTC P0102, P0103 and P0401 not active, system voltage from 11-16v, engine running, EVAP duty cycle, EGR Pintle position and throttle angle less than 90%, throttle position steady, all Fault: met for 2 seconds, then the ECM detected that the Actual MAF input was not equal to the Calculated MAF input for over 5 seconds. P0101 MAF Sensor Performance Fault: No ECM codes set, engine running, TP sensor at 2.0-3.3v, then ECM detected that the MAF input was out of range for 7 seconds. P0101 MAF Sensor Performance Fault: Engine running, system voltage from 9-18v, throttle angle, EGR Pintle position and EGR duty cycle less than 50%, throttle position and MAP inputs steady for 10 seconds, then the ECM detected the difference between Actual airflow and Calculated airflow was more than a calibrated amount. P0101 MAF Sensor System Performance Fault: DTC P0102, P0103, P0107, P0108, P1120, P1220, P1221 not set, system voltage 11-18v, engine speed from 500-2800 rpm, throttle angle under 50% with engine vacuum more than 65 kPa, change in throttle angle under 3% in 100 ms, all stable for 2 seconds, then the ECM detected the difference between Actual and Calculated frequency was more than 50%, condition met for 5 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0102 MAF Sensor Circuit Low Frequency Fault: Engine running, system voltage from 10-18v, IAC motor more than 2 counts, then the ECM detected that the MAF sensor frequency was less than 1200 H, condition met for 1 second. P0102 MAF Sensor Circuit Low Frequency Fault: Engine speed less than 500 rpm, system voltage over 11v, then the ECM detected that the MAF sensor input was less than 3.9 g/sec, condition met for 1 second. P0102 MAF Sensor Circuit Low Frequency Fault: Engine running, system voltage over 8v, throttle angle under 50%, then the ECM detected that the MAF sensor frequency was less than 1200 H, condition met for more than 0.5 seconds + 400 3X reference periods (133 crankshaft revolutions). P0102 MAF Sensor Circuit Low Frequency Fault: Engine runtime over 0.4 seconds, engine speed over 300 rpm, system voltage over 8v, then the ECM detected that the MAF sensor frequency was 10 H or less, Fault: met for 1 second. P0102 MAF Sensor Circuit Low Frequency Fault: No MAP, System Voltage or TP sensor codes set, engine speed over 400 rpm, system voltage over 10.5v, then the ECM detected that the MAF sensor input was less than 1135 H for 3 seconds. P0102 MAF Sensor Circuit Low Frequency Fault: Engine runtime more than 1 second, engine speed more than 300 rpm, system voltage over 8v, then the ECM detected that the MAF sensor frequency was less than 10 H for one second. P0102 (11T)MAF Sensor Circuit Low Frequency Fault: Engine running, system voltage over 8v, then ECM detected that the MAF input was less than 3.9 g/sec, condition met for 1 second. P0102 MAF Sensor Circuit Low Frequency Fault: Engine running, system voltage over 8v, throttle angle under 1.5%, IAC motor counts more than 5, then the ECM detected the MAF signal was less than 800 H for 500 ms plus 100 3X REF periods. P0102 MAF Sensor Circuit Low Frequency Fault: Engine runtime over 2 seconds, engine speed more than 300 rpm, system voltage more than 10v, throttle position less than 50%, then the ECM detected that the MAF sensor input was 10 hert or less (less than 300 H on 7.4L), condition met for over 250 ms. P0102 MAF Sensor Circuit Low Frequency Fault: Engine running, system voltage 10.5v or higher, then the ECM detected the MAF sensor output frequency was 1135 H or less. P0102 MAF Sensor Circuit Low Frequency Fault: Engine running, system voltage over 8v, engine speed more than 300 rpm, then the ECM detected that the MAF sensor input was 10 kpH or less, Fault: met for over one second. P0102 MAF Sensor Circuit Low Frequency Fault: Engine running, throttle position under 50%, system voltage over 8v, then the ECM detected that the MAF sensor frequency was less than 1200 H, condition met for more than 500 milliseconds. P0102 MAF Sensor Circuit Low Frequency Fault: Engine runtime 1 second, engine speed over 300 rpm, system voltage over 8v, Fault: stable for 2 seconds, then the ECM detected that the MAF input was less than 10 H for 1 second. MULTIPLE INSTANCES OF THE SAME CODE: P0103 MAF Sensor Circuit High Frequency Fault: Engine running, system voltage from 10-18v, IAC motor more than 2 counts, then the ECM detected that the MAF sensor frequency was more than 11,500 H, condition met for 1 second. P0103 MAF Sensor Circuit High Frequency Fault: Engine runtime 1 second, engine speed over 300 rpm, system voltage over 8v, Fault: stable for 2 seconds, then the ECM detected the MAF input was more than 14,000 H for 1 second. P0103 MAF Sensor Circuit High Frequency Fault: Engine running, system voltage over 8v, throttle angle under 50%, then the ECM detected that the MAF sensor frequency was more than 11,500 H, condition met for more than 0.5 seconds + 400 3X reference periods (133 crankshaft revolutions). P0103 MAF Sensor Circuit High Frequency Fault: Engine runtime over 0.4 seconds, engine speed over 300 rpm, system voltage over 8v, then the ECM detected the MAF sensor frequency was 11,000 H or more, Fault: met for 1 second. P0103 MAF Sensor Circuit High Frequency Fault: No MAP, System Voltage or TP sensor codes set, engine speed over 400 rpm, system voltage over 10.5v, then the ECM detected that the MAF sensor input was more than 11,000 H for 3 seconds. P0103 MAF Sensor Circuit High Frequency Fault: Engine runtime over 1 second, engine speed more than 300 rpm, system voltage more than Sv, then the ECM detected that the MAF frequency was more than 14,000 H for less than one second. P0103 MAF Sensor Circuit High Frequency Fault: Engine running, system voltage over 8v, throttle angle less than 1.5%, IAC counts more than 5, then the ECM detected the MAF sensor input was more than 11,500 H, condition met for 500 ms. P0103 MAF Sensor Circuit High Frequency Fault: Engine running, system voltage over 8v, then ECM detected the MAF input was more than 300 g/sec, condition met for 1 second. P0103 MAF Sensor Circuit High Frequency Fault: DTC P01 22 and P0123 not set, engine speed 0-6375 rpm, system voltage over 10.5v, throttle angle 50 degrees or less, then the ECM detected the MAF output frequency was more than 11,000 Hz. P0103 MAF Sensor Circuit High Frequency Fault: Engine runtime over 2 seconds, engine speed more than 300 rpm, system voltage over 8v, throttle position less than 50%, Fault: met for 2 seconds, then the ECM detected that the MAF input was 11,000 hert or more (10400 H on 7.4L V8) for from 1-4 seconds. P0103 MAF Sensor Circuit High Frequency Fault: Engine running, system voltage over 8v, engine speed more than 300 rpm, then the ECM detected that the MAF sensor input was 11,000 Hz or more, Fault: met for over one second. P0103 (1 T)MAF Sensor Circuit High Frequency Fault: Engine running, system voltage over 8v, IAC input over 2 counts, then the ECM detected that the MAF input was over 1150 Hz, condition met for 500 milliseconds. P0103 MAF Sensor Circuit High Frequency Fault: Engine runtime 1 second, engine speed over 300 rpm, system voltage over 8v, Fault: stable for 2 seconds, then the ECM detected the MAF input was more than 14,000 H for 1 second. MULTIPLE INSTANCES OF THE SAME CODE: P0105 MAP Sensor Circuit Insufficient Activity Fault: DTC P0106, P0107, P0108, P0122, P0123 and P1 108 not set. MAP input at least 21.5 kPa, engine vacuum at least 11.8 kPa, then the ECM detected that the MAP signal changed less than 4 kPa in 1 second following a 3.2 degree change in throttle position, and that the Actual MAP was not within 17.3 kPa of the Expected MAP, condition occurred at least 5 times. Note The ECM substitutes a Calculated MAP for Actual MAP input and the BAROMETRIC sensor value is set to 92.2 kPa when fault occurs. P0105 MAF Sensor Circuit High Frequency Fault: P0106,P0107,P0108,P0122,P0123 and P1 108 not set, MAP sensor input at least 21.5 kPa, engine vacuum at least 11.8 kPa, then the ECM detected that the MAP signal changed less than 4 kPa in the one second following a 3.2 degree change in throttle position, and that the MAP signal was not within 17.3 kPa of the expected MAP reading. This failure must occur five times. P0105 MAP Sensor Range/Performance Fault: No CMP, ECT, EVAP, Fuel Trim, H02S, IAC, Injector, Knock Sensor, MAP, Misfire, ECM Memory, TP or VSS codes set, engine runtime over 40 seconds, system voltage over 8v, engine speed from 900-6375 rpm, TCC stable within 1 %, any change in engine speed less than 50 rpm, change in IAC valve within 5 counts, change in TP less than 2%, all Fault: stable for 1.5 seconds, then the ECM detected that the MAF sensor input was out of an expected range defined on engine calibration for 14 of 16 seconds. P0105 MAP Sensor Range/Performance Fault: No CMP, ECT, EVAP, Fuel Trim, H02S, IAC, Injector, Knock Sensor, MAP, Misfire, ECM Memory, TP or VSS codes set, engine runtime over 40 seconds, system voltage over 8v, engine speed from 900-6375 rpm, TCC stable with 2.5%, any change in engine speed less than 50 rpm, any change in IAC valve within 5 counts, any change in TP less than 2%, then the ECM detected the MAF input was out of its normal engine calibration range for 10 seconds. P0105,P0107,P0108,P0122,P0123, MAP Sensor Circuit Fault: P0506 andP0507 not set, ECT input more than 158°F, throttle closed, engine speed from 600-1400 rpm, change in engine speed less than 100 rpm, A/C Clutch status unchanged, EGR command steady, IAC change less than 10 counts, then the ECM detected that the MAP input was over 3.3v, or with engine speed under 2500 rpm and throttle angle over 1.Ov, the ECM detected that the MAP input was under 1.Ov. MULTIPLE INSTANCES OF THE SAME CODE: P0106 MAP Sensor Performance Fault: No CKP, CMP, ECT, EGR, EVAP, Fuel Trim, H02S, MAP, ECM Memory, TP or VSS codes set, engine speed over 600 rpm on A/T models (or over 900 rpm on M/T), then during these tests Idle Test: Initial MAP input at idle more than 60 kPa, throttle position less than 50%, then the throttle position was changed over 12% and the ECM detected that the MAP input did not change as expected when compared to the throttle position change. Cruise & Idle Test: Initial MAP input at idle less than 65 kPa, throttle position less than 50%, then the throttle position was changed over 12% and the ECM detected that the MAP input did not change as expected when compared to the throttle position change. P0106 MAP Sensor Range/Performance Fault: Engine running with the engine speed, EGR flow rate, throttle angle and IAC counts all steady, then the ECM detected that the Actual MAP input and Expected Map value were too far apart (for 5 seconds and 200 3X REF periods on the X engine). P01 06 MAP Sensor Range/Performance Fault: No MAP or TP sensor codes set, engine speed change under 100 rpm, throttle angle change under 5%, ASR/TCS not in traction event, EGR position change under 25%, A/C Clutch, Brake Switch, IAC counts and Transmission position inputs all steady for 500 ms, then the ECM detected a large change in MAP without a preceding large change in throttle angle and RPM for 4.5 seconds. P0106 MAP Sensor Range/Performance Fault: No EGR Recirculation or TP sensor codes set, engine idle speed stable (± 75 rpm), throttle angle stable (± 1.5%), EGR Flow change less than 2%, IAC position steady (± 4 counts), no change in A/C Clutch, Brake and Clutch status, engine speed 400-5000 rpm, then the ECM detected the MAP input was out-of-range for 24 seconds. P0106 MAP Sensor Performance Fault: No TP sensor codes set, engine speed steady from 1000-4000 rpm, throttle angle, IAC valve, A/C clutch status and TCC status all steady, EGR position steady, brakes not applied, then the ECM detected that the Actual MAP sensor value did not closely match the Predicted MAP sensor value, Fault: met for 5 seconds. P0106 MAP Sensor Performance Fault: Engine running, A/C Clutch, Brake and Clutch switch states, EGR flow rate, engine speed, throttle angle and IAC counts all steady, then the ECM detected the MAP input changed too much without a corresponding change in engine load during 200 3X REF periods. P0106 MAP Sensor Range/Performance Fault: No MAP or TP sensor codes set, engine speed stable (± 100 rpm), throttle angle stable (± 5%), ASR/TCS not in traction event, EGR position change under 25%, A/C Clutch, Brake switch, IAC counts and TR switch inputs steady for 500 ms, then the ECM detected a large change in MAP without a preceding large change in throttle angle and RPM for 4.5 seconds. P0106 MAP Sensor Performance Fault: DTC P0122 and P0123 not set, engine speed 500 rpm or higher, then the ECM detected that the MAP sensor input changed by more than 10 kPa in 12.5 milliseconds during a period when engine speed varied less than 4 RPM, throttle angle varied less than 1 degree, EGR fuel compensation varied less than 4%, A/C clutch did not cycle, overheat/low coolant condition was not present, and Traction Control was not active. P0106 MAP Sensor Performance Fault: No EGR or TP sensor codes set, engine speed at 400-5000 rpm, change in engine speed under 75 rpm, change in throttle position under 1.5%, change in idle air under 4 steps, change in EGR flow rate under 2%, no change in Brake, Clutch and PSP switch inputs and A/C Clutch for 2 seconds, then the ECM detected the MAP sensor input was outside of the acceptable limits for 24 seconds. P0106 MAP Sensor Performance Fault: Engine running in closed loop, engine speed steady, then the ECM detected the MAP input during engine cranking differed from the MAP input after startup by less than 1.3 kPa, and the BAROMETRIC input differed from the MAP input by less than 33 kPa for 2 minutes. P0106 MAP Sensor Range/Performance Fault: No EGR or TP sensor codes set, engine speed at 400-5000 rpm, change in engine speed less than 75 rpm, any change in throttle position less than 1.5%, any change in idle air less than 4 counts, any change in EGR flow rate less than 2%, no change in the A/C Clutch, Brake switch, and Clutch pedal (M/T) status for 2 seconds, then the ECM detected that the MAP sensor input was outside of the acceptable limits, condition met for 24 seconds. P0106 MAP Sensor Performance Fault: Engine running, A/C Clutch, Brake and Clutch switches, engine speed, EGR flow rate, throttle angle and IAC counts all steady, then the ECM detected the MAP input changed too much without a corresponding change in engine load during 200 3X REF periods. P0106 MAP Sensor Range/Performance Fault: Engine running, idle speed stable, (±100 rpm), throttle angle stable (15%), IAC change under 10 counts, EGR command steady, then the ECM detected the MAP input changed over 0.14v (-13 kPa). MULTIPLE INSTANCES OF THE SAME CODE: P0107 MAP Sensor Circuit Low Input Fault: DTC P0122 and P0123 not set, engine speed less than 1000 rpm, or engine speed more than 1000 rpm with throttle position more than 15%, then the ECM detected that the MAP input was less than 11.8 kPa, condition met for at least 6.25 seconds. P0107 MAP Sensor Circuit Low Input Condition No TP sensor codes set, system voltage over 9v, throttle angle more than 0-6% with engine speed under 1000 rpm or throttle angle more than 10% with engine speed over 1000 rpm, then the ECM detected the MAP sensor input was below 0.1v, condition met for 200 3X REF periods (67 crankshaft revolutions). P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, engine running, throttle angle over 15%, then the ECM detected that the MAP sensor input was less than 0.24v, condition met for 4.5 seconds. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, system voltage 10-1 8v, throttle angle more than 0% with engine speed below 1000 rpm, or throttle angle more than 10% with engine speed above 1000 rpm, then the ECM detected the MAP input was below 0.1v for more than 5 seconds. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, engine running, throttle angle more than 0% with engine speed below 800 rpm or throttle angle more than 12.5% with engine speed over 800 rpm, then the ECM detected the MAP input was less than 0.4v, Fault: met for 1 second. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, throttle position over 10% with the engine speed more than 1000 rpm, or throttle position over 0% with the engine speed less than 1000 rpm, then the ECM detected that the MAP sensor input was less than 0.07v, condition met for 1 second. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, engine speed under 1200 rpm with throttle angle 0% or engine speed above 1200 rpm with throttle angle less than 20%, then the ECM detected the MAP input was less than 0.10v for 2 seconds. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, throttle angle higher than or equal to 10% with engine speed less than or equal to 900 rpm, system voltage over 8v, then the ECM detected the MAP input was under 12 kPa. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, engine running, throttle angle over 15%, then the ECM detected that the MAP sensor input was less than 0.24v, Fault: met for 4.5 seconds. P0107 MAP Sensor Circuit Low Input Fault: DTC P0122 and P0123 not set, engine speed 700 rpm or less with throttle angle 18 degrees or less, or engine speed 1800 rpm or less with throttle angle 13 degrees or more, Transaxle not in P/N, then the ECM detected that the MAP input was 0.08v or less. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, throttle angle more than 0% with engine speed under 800 rpm, or throttle angle more than 12.5% with engine speed over 800 rpm, then the ECM detected that the MAP sensor input was less than 0.05v, condition met for over 1 second. P0107 MAP Sensor Circuit Low Input Fault: Engine running in closed loop, engine speed steady, then the ECM detected a low MAP input that indicated that the manifold absolute pressure was 5 kPa or less, condition met for at least 500 ms. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, system voltage over 8v, throttle angle more than 0% with engine speed under 1000 rpm or throttle angle more than 10% with engine speed under 1000 rpm, then the ECM detected that the MAP input was less than 0.1v (12 kPa), condition met for more than 200 3X REF periods (67 crankshaft revolutions). P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, engine speed under 1000 rpm or engine speed above 1000 rpm with throttle position over 15%, and ECM detected the MAP input was under 0.08v for at least 6.25 seconds. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, engine running, throttle position more than 0% with engine speed under 800 rpm or throttle angle more than 12.5% with engine speed over 800 rpm, then the ECM detected that the MAP input was less than 0.04v for over 1 second. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, throttle angle over 0% and engine running under 1000 rpm, or with throttle angle over 6% and engine speed over 1000 rpm, then the ECM detected a MAP sensor input under 0.1v, all Fault: met for 200 3X REF periods. P0107 MAP Sensor Circuit Low Input Fault: No TP sensor codes set, throttle angle at 0% with engine speed less than 1200 rpm or throttle angle less than 20% with engine speed more than 1200 rpm, then the ECM detected that the MAP sensor input was less than 0.10v, condition met for 4 seconds. P0107 MAP Sensor Circuit Low Input Fault: DTC P0122 and P0123 not set, engine speed less than 1000 rpm, or with engine speed over 1000 rpm and throttle angle more than 10%, then the ECM detected that the MAP input was less than 0.30v (time to set this code varies by engine temperature). MULTIPLE INSTANCES OF THE SAME CODE: P0108 MAP Sensor Circuit High Input Fault: DTC P0122 and P0123 not set, engine runtime 20-40 seconds, throttle angle under 12%, VSS input under 1 mph, then the ECM detected that the MAP input was over 82 kPa for 1.25 seconds. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, system voltage 10-18v, engine runtime from 0.5 seconds at over 86°F to 2 minutes at under -22°F (length of time determined by ECT input at startup), throttle angle below 2% with engine speed under 3000 rpm (below 900 rpm on X) or throttle angle more than 30% with engine speed over 3000 rpm and the ECM detected that the MAP sensor input was above 4.2v, condition met for 200 3X REF periods (67 crankshaft revolutions). P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, throttle angle less than 5% with engine speed less than 1000 rpm or throttle angle less than 18% with engine speed more than 1000 rpm, then the ECM detected that the MAP input was more than 4.30v, condition met for 4 seconds. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, engine running from 500 ms to 2 minutes (depends on ECT input at startup), throttle angle below 2%, engine speed below 900 rpm and steady, then the ECM detected that the MAP input was more than 4.2v, condition met for 5 seconds. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, throttle angle less than 0.4% with engine speed under 1200 rpm or throttle angle less than 20% with engine speed over 1200 rpm, then the ECM detected that the MAP sensor input was 4.4v or higher, Fault: met for 1 second. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, throttle angle under 90% and engine speed more than 1000 rpm or throttle angle under 97% and engine speed more than 1000 rpm, then the ECM detected that the MAP sensor signal was more than 4.9v, Fault: met for 1 second. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, engine running, throttle angle less than or equal to 0.5% with the engine speed less than or equal to 900 rpm, then the test started and the ECM detected that the MAP sensor input was more than 85 kPa. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, engine speed less than 1000 rpm with throttle angle under 5% or engine speed more than 1000 rpm with throttle angle less than 18%, then the ECM detected that the MAP input was more than 4.3v, condition met for 4 seconds. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, throttle angle under 3% with engine speed over 1000 rpm, or with throttle angle at 0% and engine speed below 1000 rpm, then the ECM detected a MAP sensor input of over 4.2v, all Fault: met for 3 seconds. P0108 MAP Sensor Circuit High Input Fault: DTC P0122 and P0123 not set, engine running, throttle angle at 20.5 degrees or less, then the ECM detected that the MAP sensor input was 5.06v or higher. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, throttle angle less than 0.4% with engine speed under 1200 rpm or throttle angle less than 20% with engine speed over 1200 rpm, then the ECM detected that the MAP sensor input was more than 4.34v, condition met for over 1 second. P0108 MAP Sensor Circuit High Input Fault: Engine running in closed loop, engine speed steady, then the ECM detected a low MAP input that indicated that the manifold absolute pressure was 130 kPa or more, condition met for at least 500 ms. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, engine runtime from 20-40 seconds, throttle position less than 12%, VSS under 1 mph, then the ECM detected that the MAP input was more than 3.80v (82 kPa), Fault: met for at least 1.25 seconds. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, engine running, throttle angle less than 0.4% with engine speed under 1200 rpm or throttle angle less than 20% with engine speed over 1200 rpm, then the ECM detected that the MAP input was 4.4v or more, Fault: met for 1 second. P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, system voltage over 8v, engine runtime determined by the startup ECT signal (ECT less than 22°F for less than 2 minutes, ECT more than 86°F for less than 500 ms), throttle angle less than 2% with engine speed under 3000 rpm or throttle angle more than 30% with engine speed over 3000 rpm, then the ECM detected that the MAP input was more than 4.20v, condition met for more than 200 3X REF periods (67 crankshaft revolutions). P0108 MAP Sensor Circuit High Input Fault: No TP sensor codes set, throttle angle less than 5% with engine speed less than 1000 rpm or throttle angle less than 18% with engine speed more than 1000 rpm, then the ECM detected that the MAP input was more than 4.30v, condition met for 4 seconds. P0108 MAP Sensor Circuit High Input Fault: DTC P0122 and P0123 not set, engine speed over 1600 rpm with throttle angle below 70%, or with engine speed under 1600 rpm and throttle angle under 50% with engine speed under 1600 rpm, then the ECM detected that the MAP input was over 4.9v (90 kPa). MULTIPLE INSTANCES OF THE SAME CODE: P0110 IAT Sensor Circuit Fault: Key on or engine running, then the ECM detected that the IAT sensor input was -40°F, or that the IAT input was 284°F, either condition met for 500 milliseconds. P0110 IAT Sensor Circuit Fault: Engine runtime over 3 minutes, then the ECM detected that the IAT sensor input was more than 282°F, or an IAT sensor input that was -40°F, either condition met for 10 seconds at idle speed. MULTIPLE INSTANCES OF THE SAME CODE: P0111 IAT Sensor Performance Fault: Engine running for over 2 seconds, then the ECM detected that the IAT sensor input changed 0.3v, condition met for 250 milliseconds. P0111 IAT Sensor Performance Fault: Key on or engine running for 2 seconds, then the ECM detected that the IAT sensor input changed 0.3v in 250 milliseconds. P0111 IAT Sensor Performance Fault: Engine runtime 10 minutes, ECT sensor input less than 86°F at startup, then the ECM detected an IAT sensor input that indicated a smaller change than expected during the engine warmup cycle. MULTIPLE INSTANCES OF THE SAME CODE: P0112 IAT Sensor Circuit Low Input Fault: Engine runtime over 320 seconds, VSS input over 15 mph, then the ECM detected that the IAT sensor input was more than 262°F, Fault: met for 3.125 seconds. P0112 IAT Sensor Circuit Low Input Fault: No ECT, MAF or VSS codes set, engine runtime over 10 seconds, VSS input over 25 mph, then the ECM detected that the IAT sensor input was over 275°F, condition met for 18-20 seconds. P0112 IAT Sensor Circuit Low Input Fault: DTC P0100, P0102, P0103, P0117, P0118, P0502 and P0503 not set, engine runtime over 30 seconds, VSS input over 25 mph, then the ECM detected that the IAT input was over 302°F, condition met for 4.5 seconds. P0112T IAT Sensor Circuit Low Temperature Fault: Engine running, MAF sensor input less than 12 g/sec, ECT input over 140°F, VSS under 25 mph, then ECM detected that the IAT input was less than -29°F for 5 seconds. P0112 IAT Sensor Circuit Low Input Fault: No ECT, MAF or VSS codes set, engine runtime over 10 seconds, VSS input over 25 mph, then the ECM detected that the IAT input was more than 274°F, condition met for at least 20 seconds. P0112 IAT Sensor Circuit Low Input Fault: No VSS codes set, engine runtime over 100 seconds, VSS input over 2 mph, then the ECM detected that the IAT sensor input was less than a calibrated value, Fault: met for 5 seconds. P0112 IAT Sensor Circuit Low Input Fault: Key on or engine running, ECT input less than 109°F, then the ECM detected that the IAT sensor input was more than 304°F, condition met for 2 seconds. P0112 IAT Sensor Circuit Low Input Fault: No ECT, MAF or VSS codes set, engine runtime over 10 seconds, ECT sensor input less than 212°F, VSS input over 15 mph, then the ECM detected that the IAT sensor signal was less than 0.08v (approximately 278°F), Fault: met for less than one second. P0112 IAT Sensor Circuit Low Input Fault: No ECT or VSS codes set, engine running for over 10 seconds, VSS input over 25 mph, then the ECM detected an IAT sensor input of 282°F (274°F o) for at least 20 seconds. P0112 IAT Sensor Circuit Low Input Fault: DTC P0101, P0102, P0103, P0117, P0118, P0125, P0500, P0502 and P0503 not set, engine runtime 30 seconds, VSS input over 25 mph and ECM detected an IAT input of over 282°F for 5 seconds. P0112 IAT Sensor Circuit Low Input Fault: Engine runtime over 30 seconds, VSS over 25 mph, then the ECM detected the IAT input over 302°F, Fault: met for 4.5 seconds. P0112 IAT Sensor Circuit Low Input Fault: DTC P0117 and P0118 not set, ECT sensor input 230°F or less, VSS input over 15 mph, then the ECM detected that the IAT sensor input was 282°F or more. P0112 IAT Sensor Circuit Low Input Fault: No VSS codes set, engine runtime over 100 seconds, VSS input over 2 mph, then the ECM detected that the IAT sensor input was less than a calibrated value, condition met for 5 seconds. P0112 IAT Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected the IAT sensor input indicated an intake air temperature of over 246°F for 500 ms. P0112 IAT Sensor Circuit Low Input Fault: No ECT, MAF or VSS codes set, engine runtime over 10 seconds, VSS input over 25 mph, then the ECM detected that the IAT input was more than 275°F, condition met for at least 20 seconds. P0112 IAT Sensor Circuit Low Input Fault: No ECT or VSS codes set, engine runtime over 320 seconds, VSS input over 15 mph, then the ECM detected that the IAT sensor input was more than 262°F, condition met for 3.125 seconds. P0112 IAT Sensor Circuit Low Input Fault: No VSS codes set, engine runtime over 100 seconds, VSS input over 2 mph, then the ECM detected that the IAT sensor input was below a calibrated value, Fault: met for over 5 seconds. P0112 IAT Sensor Circuit Low Input Fault: DTC P0101, P0102, P0103, P0117, P0118, P0125, P0500, P0502, P0503 and P1258 not set, engine runtime over 30 seconds, VSS input over 25 mph, then the ECM detected that the IAT input was over 282°F, condition met for 4.5 seconds. P0112 IAT Sensor Circuit High Temperature Fault: No ECT or VSS codes set, engine runtime over 10 seconds, VSS input over 1 mph, Airflow input less than 16 g/sec, then the ECM detected that the IAT input was more than 257°F for 6 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0113 IAT Sensor Circuit High Input Fault: Engine runtime over 320 seconds, ECT input more than -40°F, VSS input under 15 mph, then the ECM detected that the IAT sensor input was more than -40°F, Fault: met for 12 seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, engine running, ECT input more than 140°F, MAF sensor input less than 12 g/sec, VSS input less than 35 mph, then the ECM detected that the IAT input was less than -35°F for 20 seconds (-27°F for 18 seconds on X). P0113 IAT Sensor Circuit High Input Fault: DTC P0101, P0102, P0103, P0117, P0118, P0125, P0500, P0502, P0503, P1258 not set, engine runtime over 100 seconds, ECT input more than 32°F, VSS input under 7 mph, MAF input less than 15 g/sec, then the ECM detected that the IAT sensor input was less than -31°F, condition met for 4.5 seconds. P0113T IAT Sensor Circuit High Temperature Fault: Engine running, VSS input over 35 mph, then the ECM detected the IAT input was more than 284°F, condition met for 5 seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, engine runtime over 3 minutes, ECT input more than 140°F, MAF input less than 12 g/sec, VSS input under 35 mph, then the ECM detected that the IAT input was less than -37°F, condition met for at least 20 seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, VSS input less than 2 mph, MAF sensor input less than 250 g/sec, ECT input over 184°F, engine runtime over 100 seconds, then the ECM detected that the IAT sensor input was more than 4.9v, Fault: met for 5 seconds. P0113 IAT Sensor Circuit High Input Fault: Engine runtime over 8 minutes, then the ECM detected that the IAT sensor input was less than or equal to -40°F, condition met for 2 seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, engine runtime over 15 seconds, engine speed over 500 rpm for 5 seconds, ECT input above 32°F, VSS input under 58 mph for 5 seconds, then the ECM detected the IAT input was over 4.8 volts (-33°F), condition met for 1 second P0113 IAT Sensor Circuit High Input Fault: DTC P0101, P0102, P0103, P0117, P0118, P0125, P0500, P0502 and P0503 not set, ECT sensor input over 32°F, VSS input less than 7 mph, MAF sensor airflow under 15 g/sec, then the ECM detected that the IAT sensor input was under -31°F for 5 seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT or VSS codes set, engine runtime more than 3 minutes, MAF sensor input less than 8 g/sec, ECT sensor input more than 140°F, VSS input less than 5 mph, then the test started and the ECM detected that the [AT sensor input was less than -36°F. P0113 IAT Sensor Circuit High Input Fault: Engine runtime over 100 seconds, ECT over 32°F, VSS under 7 mph, MAF input less than 15 g/sec, then the ECM detected the IAT sensor input of less than -31°F, all Fault: met for 4.5 seconds. P0113 IAT Sensor Circuit High Input Fault: DTC P0101, P0102, P0117 and P0118 not set, engine speed over 500 rpm for 20 seconds, VSS input over 7 mph for 5 seconds, ECT sensor input 32°F or more, IAT sensor input less than 81°F, VSS input under 50 mph, MAF sensor input 60 g/sec or less, then the ECM detected that the IAT sensor input was -35°F or less. P0113 (2TIAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, engine runtime over 100 seconds, VSS input over 2 mph, MAF sensor input less than 250 g/sec, ECT sensor input more than 185°F, then the ECM detected that the IAT sensor input was more than 4.90v, condition met for 5 seconds. P0113 IAT Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the IAT sensor input indicated an intake air temperature of less than -40°F, condition met for at least 500 milliseconds. P0113 IAT Sensor Circuit High Input Fault: No ECT or VSS codes set, engine runtime over 320 seconds, ECT input more than -40°F, VSS input less than 15 mph, then the ECM detected the IAT input was less than -40°F for three seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, ECT input more than 185°F, MAF input less than 250 g/sec, engine runtime over 100 seconds, VSS input over 2 mph, then the ECM detected that the IAT sensor input was 4.9v or more, Fault: met for over 5 seconds. P0113 IAT Sensor Circuit High Input Fault: No ECT, MAF or VSS codes set, engine runtime over 3 minutes, ECT input more than 140°F, MAF input less than 12 g/sec, VSS input under 35 mph, then the ECM detected that the IAT input was less than -35°F, condition met for at least 20 seconds. P0113 IAT Sensor Circuit High Input Fault: DTC P0101, P0102, P0103, P0117, P0118, P0125, P0500, P0502, P0503, P1258 not set, engine runtime over 100 seconds, ECT input more than 32°F, VSS input under 7 mph, MAF input less than 15 g/sec, then the ECM detected that the IAT sensor input was less than -31°F, condition met for 4.5 seconds. P0113 IAT Sensor Circuit Low Temperature No VSS codes set, engine runtime over 10 seconds, VSS input less than 15 mph, Airflow under 16 g/sec, then the ECM detected the IAT input was less than -22°F, condition met for 6 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0115 ECT Sensor Circuit Fault: Key on or engine running, then the ECM detected that the IAT sensor input was -40°F, or that the IAT input was 284°F, either condition met for 500 milliseconds. P0115 ECT Sensor Circuit Fault: Key on or engine running, then the ECM detected that the ECT sensor input was more than 282°F, or that it was less than -40°F. P0116 ECT Sensor Performance Fault: No ECM codes set, engine runtime 2 seconds, then the ECM commanded a shift in the ECT pull-up resistors (at around 122°F), and detected that the ECT input changed only 0.3v in one second. P0116 ECT Sensor Performance Fault: Engine runtime over 2 seconds, at least 2 seconds have passed since the ECM commanded a shift in the ECT pull-up resistors (at around 122°F), then the ECM detected that the ECT input changed only 0.3v in one second. P0116 ECT Sensor Performance Fault: Engine runtime 20 minutes, vehicle driven at speed of 30 mph or more at least once since engine startup, then the ECM determined that the engine coolant temperature (as indicated by the ECT sensor) variation was less than the expected value. P0116 ECT Sensor Performance Fault: Engine running, ECT and IAT inputs below 20°F at startup and engine runtime over 20 minutes, the ECM detected the ECT input was less than 95°F, or with the ECT and IAT inputs from 20-50°F at startup and engine runtime over 5 minutes, the ECT input was less than 95°F, or with the ECT and IAT inputs over 50°F at startup and engine runtime over 2 minutes, the ECT input below 95°F. P0116 ECT Sensor Performance Fault: Engine running, then the ECM detected the difference between the calculated ECT signal and Actual ECT signal was over 22°F. P0116 ECT Sensor Performance No ECT or IAT codes set, both ECT/IAT inputs over -13°F but under 90°F at start-up, and ECT/IAT within 11°F of each other at start-up, then the ECM detected the engine did not reach a closed loop operating temperature of 138°F in 22 minutes. MULTIPLE INSTANCES OF THE SAME CODE: P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 128 seconds, then the ECM detected that the ECT input was more than 280°F, condition met for 12.5 seconds. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 3 to 15 seconds, then the ECM detected that the ECT input was more than 283°F for 25 seconds (over 237°F for 10 seconds on X). P0117 ECT Sensor Circuit Low Input Fault: Engine running over 10 seconds (or less than 10 seconds with AT sensor input less than 122°F), then the ECM detected that the ECT sensor input was more than 282°F, condition met for 20 seconds. - PO117 ECT Sensor Circuit Low Temperature Fault: Engine runtime over 3 seconds, then the ECM detected an ECT sensor input of less than -38°F, condition met for 400 milliseconds. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 15 seconds, then the ECM detected that the ECT sensor input was more than 282°F, condition met for at least 10 seconds. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 5 seconds, then the ECM detected the ECT sensor input was less than 0.25v, Fault: met for 20 seconds. P0117 ECT Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the ECT sensor input was more than or equal to 303°F, condition met for 2 seconds. P0117 ECT Sensor Circuit Low Input Fault: No IAT sensor codes set, engine runtime over 10 seconds, IAT sensor input less than 158°F, then the ECM detected that the ECT sensor input was less than 0.08 volts (approximately 278°F), condition met for less than 1 second. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime 10 seconds, or under 10 seconds with ECT input less than 122°F, then the ECM detected that the ECT sensor input was more than 282°F, condition met for 20 seconds. P0117 ECT Sensor Circuit Low Input Fault: Engine running, then the test started and the ECM detected that the ECT sensor input was more than 284°F. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 20 seconds, then the ECM detected an ECT sensor input of more than 304°F, condition met for 4.5 seconds. P0117 ECT Sensor Circuit Low Input Fault: DTC P0112 and P0113 not set, engine running with throttle angle from 5-35 degrees for at least 3.5 minutes, IAT input at 212°F or less, then the ECM detected the ECT input was 247°F or more. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime more than 5 seconds, then the ECM detected that the ECT sensor input was less 0.25v, condition met for 20 seconds. P0117 ECT Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the ECT sensor input was more than 246°F, condition met for 500 ms. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 128 seconds, then the ECM detected that the ECT input was more than 289°F, condition met for 6.25 seconds. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 5 seconds, then the ECM detected that the ECT input was less than 0.25v, Fault: met for 20 seconds. P0117 ECT Sensor Circuit Low Input Fault: Engine runtime over 3 seconds, then the ECM detected that the ECT input was more than 283°F, condition met for 25 seconds. P0117 ECT Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected an ECT input under 1v for 2 seconds. P0117 ECT Sensor Circuit Low Input Fault: Engine running over 10 seconds (or less than 10 seconds with IAT sensor input less than 122°F), then the ECM detected an ECT sensor input was more than 282°F, condition met for 20 seconds. P0117 ECT Sensor Circuit High Temperature Fault: Engine runtime over 10 seconds, then the ECM detected that the ECT sensor input was more than 284°F at any time. MULTIPLE INSTANCES OF THE SAME CODE: P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 60 seconds, then the ECM detected that the ECT input was less than -40°F, condition met for 6.25 seconds. P0118 ECT Sensor Circuit High Input Fault: Engine runtime 3-15 seconds, then the ECM detected that the ECT sensor input was less than -37°F for 3 seconds (less than -27°F for 10 seconds on X). P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 60 seconds (or less than 60 seconds with IAT sensor input more than 32°F), then the ECM detected that the ECT input was less than -38°F for 25 seconds. P0118T ECT Sensor Circuit High Temperature Fault: Engine runtime over 3 seconds, then the ECM detected an ECT sensor input of more than 284°F, condition met for at least 400 ms. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 15 seconds, then the ECM detected that the ECT sensor input was less than -38°F, condition met for at least 1 minute. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 5 seconds, then the ECM detected the ECT sensor input was more than 4.90v, Fault: met for 20 seconds. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 8 minutes, then the ECM detected that the ECT input was less than -22°F, condition met for 2 seconds. P0118 ECT Sensor Circuit High Input Fault: No IAT sensor codes set, engine runtime over 60 seconds, AT sensor more than 19°F, then the ECM detected that the ECT sensor input was more than 4.9v (approximately -35°F), Fault: met for less than 1 second. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 60 seconds, or engine runtime less than 60 seconds with an ECT sensor input more than 32°F then the test started and the ECM detected that the ECT sensor input was less than -38°F, Fault: met for 20 seconds. P0118 ECT Sensor Circuit High Input Fault: Engine running for 15 seconds, then the test started and the ECM detected the ECT sensor input indicated less than -38°F. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 20 seconds, then the ECM detected an ECT sensor input of under -40°F, condition met for 4.5 seconds. P0118 ECT Sensor Circuit High Input Fault: DTC P0112, P0113, P0122 and P0123 not set, engine running with throttle angle from 7 degrees for at least 3.5 minutes, IAT sensor input at 23°F or more, then the ECM detected that the ECT input was -36°F or less with one of the above Fault: met. P0118 ECT Sensor Circuit High Input Fault: Engine runtime more than 5 seconds, then the ECM detected that the ECT sensor input was more than 4.90v, condition met for at least 20 seconds. P0118 ECT Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the ECT sensor input was less than -40°F, condition met for 500 ms. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 60 seconds, then the ECM detected that the ECT input was less than -40°F, condition met for 6.25 seconds. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 5 seconds, then the ECM detected that the ECT input was more than 4.90v, Fault: met for 20 seconds. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 15 seconds, then the ECM detected that the ECT input was less than -37°F, Fault: met for 25 seconds. P0118 ECT Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected an ECT input over 4.8v for 30 seconds. P0118 ECT Sensor Circuit High Input Fault: Engine runtime over 60 seconds (or less than 60 seconds with IAT sensor input more than 32°F), then the ECM detected that the ECT input was less than -38°F, condition met for 20 seconds. P0118 ECT Sensor Circuit Low Temperature Fault: Engine runtime over 4 minutes, then the ECM detected that the ECT sensor input was less than -31°F at any time. MULTIPLE INSTANCES OF THE SAME CODE: P0120 TP Sensor Performance Fault: DTC P0107 and P0108 not set, MAP input more than 21.8 kPa and MAP input not within 12 kPa of BAROMETRIC, engine speed over 500 rpm, Engine Metal Overtemperature and Traction Control inactive, then the ECM detected that the MAP input changed 3 kPa or less in a 210 ms period following a 5 degree or more increase in throttle angle, or that the MAP input changed 2.2 kPa or less in a 210 ms period following a 4.7 degree decrease in throttle angle. P0120 TP Sensor Performance Fault: DTC P0107 and P0108 not set, MAP input more than 21.8 kPa and MAP input not within 12 kPa of BAROMETRIC, engine speed over 500 rpm, Engine Metal Overtemperature and Traction Control inactive, then the ECM detected that the MAP input changed 3 kPa or less in a 210 ms period following a 5 degree or more increase in throttle angle, or that the MAP input changed 2.2 kPa or less in a 210 ms period following a 4.7 degree decrease in throttle angle. P0120 TP Sensor Circuit Fault: Key on or engine running, then the ECM detected that the TP input was less than 0.1v, or that the TP input was more than 4.9v. P0120 TP Sensor Circuit Fault: No ECM codes set, engine running, then the ECM detected the TP angle was above 90% or below 3.9% during cranking (2 seconds). MULTIPLE INSTANCES OF THE SAME CODE: P0121 TP Sensor Performance Fault: No ECM codes set, throttle angle stable (± 2%), MAP input less than 37 kPa, then the ECM detected the throttle angle was more than one of several specified percentages at a given engine speed. P0121 TP Sensor Range/Performance Fault: No MAP or TP sensor codes set, engine running with MAP input steady for 5 seconds, ECT input more than 167°F, with MAP input less than 55 kPa, the ECM detected that the TP sensor input was above the Predicted value, or with the MAP sensor input more than 70 kPa, the ECM detected that the TP sensor input was below the Predicted value, either condition met for 10 seconds. P0121 TP Sensor Performance Fault: No MAP or TP sensor codes set, MAP input under 60 kPa, throttle angle steady, then the ECM detected that the predicted throttle angle was less than the Actual throttle angle for 38 seconds. P0121 TP Sensor Performance Fault: No MAP or TP sensor codes set, engine running, ECT input over 158°F, MAP input under 50 kPa or over 70 kPa, MAP input steady, and ECM detected the Actual TP input was over the Calculated TP input with MAP input under 50 kPa, or was below the Calculated MAP input with the MAP input over 70 kPa for 10 seconds. P0121 (STSAccelerator Pedal Position Sensor 1 Performance Fault: Lamp Code)No APP Sensor codes set, engine speed over 300 rpm, system voltage over 6.4v, then the ECM detected that the difference between the APP 1 and APP 2 inputs was more than 230 mv, and that the difference between the APP 1 and APP 3 inputs was more than 500 mv, condition met for 2 seconds. P0121 TP Sensor Performance Fault: No IAC or MAP sensor codes set, DTC P0122 not active, key on or engine running, BAROMETRIC sensor value not in default, throttle position steady (± 2%), then the ECM detected during these tests Stuck Hiqh Test That the Actual throttle position was more than the Calculated throttle position, condition met for 5 seconds. Stuck Low Test (Stuck High Test Passed) That the Actual throttle position was less than the Calculated throttle position, condition met for more than 5 seconds. P0121 TP Sensor Circuit Insufficient Activity Fault: No IAC, MAP or TP sensor codes set, engine running, ECT sensor input more than 32°F, IAC position from 10-160 counts, MAP input less than 55 kPa, Engine Overtemperature and Traction Control inactive, then the ECM detected that the Actual TP sensor input did not match the Predicted TP sensor value. Note If the MAP sensor input is more than 55 kPa, check for a stuck high TP sensor. If the MAP sensor input is less than 63 kPa, check for a stuck low TP sensor. P0121 TP Sensor Circuit Insufficient Activity Fault: No MAP or TP codes set, engine runtime over 10 seconds, ECT sensor input more than 32°F, IAC from 0-255 counts, MAP input less than 55 kPa or more than 65 kPa and steady, then the ECM detected the predicted throttle angle did not match the Actual throttle angle, Fault: met for 20 seconds. P0121 TP Sensor Performance Fault: 1995-1998No ECM codes set, engine running, MAP input at less than 55 kPa, throttle angle steady (± 1%), then the ECM detected the predicted throttle angle was not close to the Actual throttle angle, all Fault: met for 10 seconds. P0121 TP Sensor Performance Fault: No MAP or TP sensor codes set, MAP input under 60 kPa, throttle angle steady ±1, then the ECM detected that the predicted throttle angle was less than the Actual throttle angle for 38 seconds. P0121 TP Sensor Circuit Insufficient Activity Fault: DTC P0106, P0107, P0108, P0122 and P0123 not set, engine speed over 400 rpm, throttle position changed less than 0.6 degrees in 1 second, MAP input less than 60.3 kPa, Traction Control and Engine Overtemperature inactive, all eight engine cylinders are enabled, then the ECM detected that the TP sensor input was not within its expected range. P0121 TP Sensor Performance Fault: No IAC or MAP sensor codes set, DTC P0122 not active, engine running, BAROMETRIC sensor value not in default, throttle position steady (± 2%), then the ECM detected these throttle angle Fault Condition Stuck High Test Actual throttle angle was higher than Calculated throttle angle (or the MAP input was less than 50 kPa on 7.4L V8) for 5 seconds. Stuck Low Test (Stuck High Test Passed) Actual throttle angle lower than Calculated throttle angle (or MAP input was over 60 kPa & IAC at 10-340 on 7.4L VS) for 5 seconds. P0121 TP Sensor Performance Fault: Engine speed from 1500-3500 rpm, ECT input more than 158°F, IAT input from 14-122°F, fuel level over 25%, BARO input over 75 kPa, MAP change less than 13 kPa in 16 firing events, then the ECM detected the difference between the Actual and Expected TP sensor angle was over 20 degrees, condition met for 3 seconds. P0121 TP Sensor Performance Fault: Engine running in closed loop, engine speed increasing, then the ECM detected that the vehicle speed input exceeded 19 mph while the TP sensor input was out of the applicable operating range. P0121 TP Sensor Performance Fault: No ECM codes set, throttle angle stable (± 2%), MAP input less than 37 kPa, then the ECM detected the throttle angle was more than one of several specified percentages at a given engine speed. P0121 TP Sensor Performance Fault: No IAC or MAP sensor codes set, DTC P0122 not active, engine running, BAROMETRIC sensor value not in default, throttle position steady (± 2%), then the ECM detected these throttle angle Fault Condition Stuck High Test: MAP sensor input less than 50 kPa and the Actual throttle position was more than Calculated throttle position for over 5 seconds. Stuck Low Test (Stuck High Test Passed) The Stuck High Test passed, the MAP sensor input was more than 65 kPa and the IAC valve was from 10-340 counts, and the Actual throttle position was less than the Calculated throttle position for over 5 seconds. P0121 TP Sensor Performance Fault: No MAP or TP sensor codes set, engine runtime over 2 minutes, ECT input more than 167°F, MAP input less than 55 kPa if the TP sensor is skewed "high" or MAP input more than 70 kPa if the TP sensor is skewed "low", MAP input steady for 5 seconds, then the ECM detected that the TP sensor input was above a predicted value with the MAP input below 50 kPa or the TP sensor input was below the predicted value with the MAP input more than 70 kPa, condition met for over 10 seconds. P0121 TP Sensor Performance Fault: DTC P0606, P1517 and P1518 not set, key in crank or run mode, system voltage over 5.23v, then the ECM detected that the APP 1 disagreed with the APP 2 by over 10.5% and APP 1 disagreed with the APP 3 sensor by over 13%, condition met for over 1 second. P0121 TP Sensor Voltage Out of Range Fault: No MAP or TP sensor codes set, engine running, then the ECM detected that the MAP sensor input was more than 54.6 kPa when the TP sensor input changed less than 2% (tested continuously). MULTIPLE INSTANCES OF THE SAME CODE: P0122 TP Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the TP sensor input was less than 0.10 (0.20 on T), condition met for 15 seconds. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was less than 0.16v, condition met for over 1 second. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was less than 0.2v, condition met for 1 second. P0122 TP Sensor Circuit Low Input Fault: Key on, then the ECM detected a TP sensor input of less than 0.16v, all Fault: met for 4-10 seconds (actual length of time depends on engine family). P0122 TP Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the TP sensor input was less than 0.1 v, condition met for more than 1 second. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was less than 0.25v, Fault: met for 1 second. P0122 (STS Accelerator Pedal Position Sensor 1 Low Input Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP 1 sensor input was less than 250 mv, condition met for 2 seconds. P0122 TP Sensor Circuit Low Input Fault: Engine speed 600 rpm or greater, IAC position at 10-110 counts, then the ECM detected that the TP sensor input was less than 0.25v, condition met for less than 0.1 second. Note The ECM disables the torque converter clutch, calculates a TP sensor value based on MAP and engine speed inputs and disables fourth gear when this trouble code sets. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the TP sensor signal was less than 0.2v, condition met for 10 seconds. P0122 TP Sensor Circuit Low Input Fault: 1995-1998Key on or engine running, then the ECM detected a TP sensor input of less than 0.16v, all Fault: met for 1 second. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was less than 0.2v, condition met for 1 second. P0122 TP Sensor Circuit Low Input Fault: Engine speed 600 rpm or greater, IAC position at 10-110 counts, then the ECM detected the TP input was less than 0.10v. Note The ECM disables the torque converter clutch, calculates a TP sensor value based on MAP and engine speed inputs and disables fourth gear when this trouble code sets. P0122 TP Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the TP sensor input was less than 0.15v, condition met for 1 second or more. P0122 TP Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the TP sensor input signal was too low, condition met for at least 500 milliseconds. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was less than 0.20v, condition met for 6.25 seconds. P0122 TP Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the TP sensor input was less than 0.25v, Fault: met for one second. P0122 TP Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected the TP sensor input was less than 0.16v, condition met for over 1 second. P0122 TP Sensor Circuit Low Input Fault: DTC P0121 and P0123 not set, engine running, then the ECM detected that the TP sensor input was less than 0.2v, condition met for 3 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0123 TP Sensor Circuit High Input Fault: DTC P0106 and P01 07 not set, then the ECM detected under Condition 1: Engine running at under 1500 rpm with MAP input less than 60 kPa (50 kPa on X), that the TP input was over 3.9v with the engine speed less than 1500 rpm, condition met for 15 seconds. Condition 2: Engine running at over 1500 rpm with MAP sensor input more than 60 kPa (70 kPa on X) and that the TP input was above 4.80v with engine speed over 1500 rpm, condition met for 15 seconds. P0123 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was more than 4.9v, condition met for over 1 second. P0123 TP Sensor Circuit High Input Fault: Engine running, then the ECM detected that the TP sensor input was more than 4.90v, condition met for more than 1 second. P01 23 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was over 4.8v, all Fault: met for 1 second. P0123 TP Sensor Circuit High Input Fault: Engine running, then the ECM detected a TP sensor input of over 4.8v, or with no MAF codes set and engine running, MAF input less than 15 g/sec, then the ECM detected a TP sensor input of over 1.1v, all Fault: met for 5 seconds. P0123 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was more than 4.70v, condition met for 1 second. P0123 (STS Accelerator Pedal Position Sensor 1 High Input Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP 1 sensor input was more than 4.75v, condition met for 2 seconds. P0123 TP Sensor Circuit High Input Fault: Engine running, IAC position 10-110 counts and the ECM detected the TP input was more than 4.8v, Fault: met for 1 second. P0123 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the TP sensor signal was more than 4.75v, condition met for 10 seconds. P0123 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected a TP sensor input of over 4.71v for at least 1 second. P0123 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the TP sensor input was over 4.8v, all Fault: met for I second. P0123 TP Sensor Circuit High Input Fault: Engine speed from 25-3000 rpm, IAC position from 10-110 counts, then the ECM detected the TP input was 4.96v or higher. P0123 TP Sensor Circuit High Input Fault: Engine running, then the ECM detected that the TP sensor input was more than 4.90v, condition met for 1 second. P01 23 TP Sensor Circuit High Input Fault: Engine running, then the ECM detected that the TP sensor input was too high (throttle opening over 96%, condition met for 500 ms. P0123 TP Sensor Circuit High Input Fault: No MAP codes set, engine running and the ECM detected under Condition 1: Engine running at under 1500 rpm with MAP input less than 60 kPa, that the TP sensor input was over 3.9v with the engine speed less than 1500 rpm, condition met for 13.75 seconds. Condition 2: Engine running at over 1500 rpm with MAP sensor input more than 60 kPa, that the TP sensor voltage was more than 4.80v with the engine speed more than 1500 RPM, condition met for 15 seconds. P0123 TP Sensor Circuit High Input Fault: Engine running, then the ECM detected that the TP sensor input was more than 4.70v, condition met for one second. P0123 TP Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected the TP sensor input was more than 4.90v, condition met for over 1 second. P0123 TP Sensor Circuit High Input Fault: DTC P0121 and P0122 not set, engine running, then the ECM detected the TP input was over 4.90v, condition met for 3 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0130, P0131, P0132, P0171, P0172, P0201, P0202, P0203, P0204, P0300, P0325, P0336, P0420, P0440, P0442, P0446, P0452, P0453, P0480, P0502, P0503, P0506 and P1441 not set, engine runtime over 30 seconds and less than 20 minutes, minimum IAT sensor input more than 27°F, startup ECT sensor input less than 149°F, average airflow more than 20 g/sec, vehicle has traveled more than 1.5 miles at over 25 mph, then the ECM determined after enough airflow had entered the engine coolant temperature had not risen to 104°F after 30 seconds. P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0112, P0113, P0117 and P0118 not set, startup ECT and IAT sensor inputs more than 50°F, VSS input more than 5 mph, closed loop enabled, then the ECM detected that the ECT input did not reach 140°F, condition met for 7 minutes. P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0112, P0113, P0117 and P0118 not set, startup ECT input more than 19°F, minimum IAT input more than 19°F, then in Region 1 Fault: Startup ECT input more than 50°F and IAT input more than 50°F, then with engine runtime over 127 seconds, the engine did not reach a closed loop temperature of 64°F after a calibrated amount of total airflow and maximum idle time of more than 95 seconds. Region 2 Fault: Startup ECT input between 20-50°F and IAT input more than 20°F, then with engine runtime over 20 seconds, the engine did not reach closed loop temperature of 64°F after a calibrated amount of total airflow and maximum idle time of more than 210 seconds. Region 3 Fault: Startup ECT from -20°F to 40°F and IAT input more than 20°F, then with engine runtime over 439 seconds, the engine did not reach closed loop temperature of 64°F after a calibrated amount of total airflow and maximum idle time of more than 329 seconds. P0125 ECT Excessive Time To Enter Closed Loop Fault: 200DTC P0112, P0113, P0117 and P0118 not set, startup ECT input more than 19°F, minimum IAT input more than 19°F, then in Region 1 Fault: IAT input more than 50°F and the startup ECT input above 14°F for - or above 50°F for 1, then with engine runtime over 6 seconds () or over 150 seconds (VIN 1), the engine did not reach a closed loop temperature of 64°F () or 68°F for 1 after a calibrated amount of total airflow and maximum idle time of more than 5 seconds () or more than 125 seconds for 1. Region 2 Fault: IAT input more than 20°F and startup ECT input between 20-50°F, then with engine runtime over 154 seconds () or over 250 seconds (VIN 1), the engine did not reach closed loop temperature of 64°F () or 68°F for I after a calibrated amount of total airflow and maximum idle time of more than 120 seconds () or more than 200 seconds for 1 had been exceeded. Region 3 Fault: IAT input more than 20°F and startup ECT input from -40-20°F, then with engine runtime over 287 seconds () or over 375 seconds (VIN 1), the engine did not reach closed loop temperature of 64°F () or 68°F for 1 after a calibrated amount of total airflow and maximum idle time of more than 255 seconds () or more than 300 seconds for 1 had been exceeded. P0125 ECT Excessive Time To Enter Closed Loop Fault: No ECT or IAT codes set, ECT and IAT sensor inputs both more than -40°F, startup ECT 104°F or less, engine running and the following Fault: were met for the Closed Loop Test With the startup ECT input near-40°F, accumulated airflow since startup more than 9000 grams and idle time under 360 seconds. With the startup ECT input near +20°F, accumulated airflow since startup more than 5500 grams with idle time less than 225 seconds With startup ECT input 50°F, accumulated airflow since startup more than - grams and idle time less than 90 seconds Then the ECM detected that the Closed Loop ECT input was not within a predetermined time (depends on startup ECT and airflow). Startup ECT near -40°F, ECT input is under 68°F after 8 minutes Startup ECT near 20°F, ECT input is under 68°F after 5 minutes Startup ECT near 50°F, ECT input is under 68°F after 2 minutes P0125 ECT Excessive Time To Enter Closed Loop Fault: No ECT, IAT, MAF or VSS codes set, engine running, startup ECT sensor input less than 104°F, ECT input more than -40°F, IAT sensor input from -40°F to 104°F, VSS input over 1 mph, then the ECM detected that the length of time for the engine coolant to reach a stabilied temperature of 68°C (154°F) took too long. Note The amount of time ranges between 2 and 23 minutes depending on engine coolant temperature at start-up and the amount of air cycled by the engine since startup. P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0112, P0113, P0117 and P0118 not set, minimum air temperature more than 19°F, startup ECT sensor input less than 68°F with A/T (less than 104°F for M/T), then in these Fault Condition Region 1 - Automatic Transmission (above 50°F) IAT and ECT sensor inputs both more than 50°F Region 1 - Manual Transmission (above 50°F) Startup ECT over 50°F, IAT and ECT inputs more than 50°F Region 2 (above 20°F) Startup ECT input at 20°F to 50°F, IAT input more than 20°F Region 3 (below 20°F) Startup ECT sensor input from -40°F to 20°F, IAT input over 20°F Then the ECM detected that it took over 139 seconds to achieve an ECT input of 68°F after a calibrated amount of total airflow had been exceeded with a maximum idle time of under 104 seconds. P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0112, P0113, P0117 and P0118 not set, engine running, ECT sensor input from -33°F to 40°F at startup, IAT sensor input more than 19°F, VSS over 1 mph, then the ECM detected that the engine did not reach a closed loop temperature of 93°F within a predetermined time since engine startup (from 2 to 22 minutes). P0125 ECT Excessive Time To Enter Closed Loop DTC P0112, P0113, P0117 and P0118 not set, startup ECT and IAT sensor inputs both over 50°F, VSS input over 5 mph, then the ECM detected that the ECT input did not reach 140°F in 7 minutes. P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0112, P0113, P0117 and P0118 not set, engine running, IAT input less than 32°F, VSS input at least 1 mph, then the ECM detected that 4.5 minutes had passed since the Fault: were met and the ECT input was less than 41 °F for 3 seconds. P0125 ECT Excessive Time To Enter Closed Loop No ECT or IAT codes set, startup ECT input 104°F or less, ECT and IAT sensor inputs more than -40°F (over 20°F on 7.4L), then With startup ECT under -40°F, accumulated airflow since startup from 7500-9000 grams and idle time at 225-360 seconds. With startup ECT from 20-50°F, accumulated airflow since startup from 4500-5500 grams and idle time less than 225 seconds With startup ECT 50°F or more, accumulated airflow since startup from 1600- grams and idle time less than 90 seconds Then the ECM determined that the ECT input did not indicate closed loop within a calculated time (depends on ECT and MAF). 1) Startup ECT under -40°F, ECT input under 68°F for 8 minutes 2) Startup ECT 20-50°F, ECT input under 68°F for 5 minutes or startup ECT 20-50°F, ECT input under 113°F for 5 minutes - 7.4L 3) Startup ECT over 50°F, ECT input under 68°F for 2 minutes or startup ECT over 50°F, ECT input under 113°F for 2 minutes -7.4L P0125 ECT Excessive Time To Enter Closed Loop Fault: Engine running, fuel level input over 25%, H02S-11 signal varying, IAT input from 14-122°F, BAROMETRIC input over 75 kPa, then the ECM detected the engine coolant temperature required to allow closed loop operation was not achieved within a calculated time frame. P0125 ECT Excessive Time To Enter Closed Loop Fault: No CKP, ECT, Fuel Trim, H02S, IAC, IAT, Injector, MAP, Misfire, System Voltage, TP or VSS codes set, ECT input less than 304°F, IAT input more than 20°F, minimum calculated airflow less than 10 grams per second to be considered at idle (used for all three temperature regions), then under the following Fault Condition Region 1 Ambient Temperature (above 50°F) Startup ECT input more than 50°F, ECT and IAT sensor inputs more than 50°F, engine runtime over 120 seconds, maximum idle time less than 90 seconds, then the ECM detected that the ECT input was less than 113°F with the vehicle in open loop operation. Region 2 Ambient Temperature (above 20°F) Startup ECT input from 20-50°F, ECT and IAT sensor inputs more than 20°F, engine runtime over 300 seconds, maximum idle time less than 225 seconds, then the ECM detected that the ECT input was less than 113°F with the vehicle in open loop operation. Region 3 Ambient Temperature (below 20°F) ECT and IAT sensor inputs more than 20°F, engine runtime over 2.25 minutes, maximum idle time less than 17 minutes, then the ECM detected that the ECT input was less than 113°F with the vehicle in open loop operation. P0125 Excessive Time To Closed Loop Fuel Control Fault: Engine runtime 3 minutes, engine speed over 1400 rpm, ECT input more than 140°F, VSS input from 25-62 mph, Throttle Valve open, then the ECM detected that the H02S-11 signal did not indicate rich, condition met for more than 1.5 minutes. P0125 Excessive Time To Closed Loop Fuel Control Fault: No ECT or IAT codes set, ECT and IAT sensor inputs both more than -40°F, startup ECT input 104°F or less, engine running and the following Fault: were met for the Closed Loop Test With the startup ECT input near-40°F, accumulated airflow since startup more than 7500 grams and idle time under 360 seconds. With the startup ECT input near 20°F, accumulated airflow since startup more than 4500 grams with idle time less than 225 seconds With startup ECT input 50°F, accumulated airflow since startup more than 1600 grams and idle time less than 90 seconds. Then the ECM detected that the Closed Loop temperature was not within a predetermined time. The maximum time allowed depends on the startup coolant temperature and amount of engine airflow. Startup ECT near -40°F, ECT input is under 68°F after 8 minutes Startup ECT near 20°F, ECT input is under 68°F after 5 minutes Startup ECT near 50°F, ECT input is under 68°F after 2 minutes P0125 Excessive Time To Closed Loop Fuel Control Fault: DTC P0112, P0113, P0117 and P0118 not set, minimum air temperature more than 19°F, startup ECT sensor input less than 122°F, then under these Fault: in the appropriate region Region 1 - Automatic Transmission Startup ECT input over 50°F, IAT input over 50°F, and it took over 127 seconds to reach closed loop temperature (64°F), calibrated amount of airflow exceeded, Max idle time under 95 seconds. Region 2 - Automatic Transmission Startup ECT input from 20-50°F, IAT input over 20°F, and runtime over 280 seconds to reach closed loop temp. (64°F), calibrated amount of airflow was exceed, Max idle time under 210 seconds. Region 3 - Automatic Transmission Startup ECT input from -40-20°F, IAT input over 20°F, and runtime over 439 seconds to reach closed loop temp. (64°F), calibrated amount of airflow was exceed, Max idle time under 329 seconds. P0125ECT Excessive Time To Enter Closed Loop Fault: No ECT codes set, engine running, IAT input indicating a cold engine, VSS at 5-10 mph, ECM timed-out (4-9 minutes), then the ECM detected the ECT input did not reach a closed loop value. P0125 ECT Excessive Time To Enter Closed Loop Fault: DTC P0112, P0113, P0117 and P0118 not set, startup ECT input from -33°F to 104°F, AT input more than 20°F, VSS input over 1 mph, then the ECM detected the ECT input did not reach a closed loop temperature of 93°F within a calculated time. The maximum allowable time depends on the start-up coolant temperature and the amount of airflow into the engine. The range for the time is from 2 minutes and 20 seconds to 22minutes and 30 seconds. P0125 Engine Cooling System Temperature Low Fault: DTC P0112, P0113, P0117 and P0118 not set, then starting with a cold engine, engine runtime over 5 minutes, then the ECM detected that the ECT sensor input was less than 32°F. MULTIPLE INSTANCES OF THE SAME CODE: P0126 Engine Coolant Temperature Insufficient for Stable Operation P0112, P0113, P0117 and P0118 not set, engine runtime over 5 minutes, ECT input less than 133°F, IAT input more than 20°F, and then the ECM determined that the amount of fuel consumed since startup was over 1,000, cu. Mm, and that the total time since startup was under 450 seconds, or the ECM determined that the amount of fuel consumed since startup was over 468,120 cu. mm. and that the total time since startup was less than 225 seconds. P0128 ECT Below Thermostat Regulating Temperature Fault: Engine running, ECT and IAT inputs from 14-97°F, then the ECM detected the engine coolant temperature did not reach at least 167°F with the Water Temperature Counter Diagnostic running. P0128 ECT Input Below Thermostat Regulating Temperature fAULT: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0130, P0131, P0132, P0171, P0172, P0201, P0202, P0203, P0204, P0300, P0325, P0336, P0420, P0440, P0442, P0446, P0452, P0453, P0480, P0502, P0503, P0506 and P1441 not set, engine runtime over 30 seconds and less than 20 minutes, minimum IAT sensor input more than 27°F, startup ECT sensor input less than 149°F, average airflow more than 20 g/sec, vehicle has traveled more than 1.5 miles at over 25 mph, then the ECM determined enough airflow had entered the engine and the engine coolant temperature had not risen to 158°F after 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0130 H02S-11 Circuit (Bank I Sensor 1) Closed Loop FAULT: No ECT, Injector, H02S, IAT, MAF, MAP or TP sensor codes set, engine speed from 500-5000 rpm, engine runtime over 2 minutes, predicted H02S heater temperature over 1112°F, ECT input over 167°F, DFCO, Catalyst test, P/E and Traction Control inactive, system voltage 8-18v, MAF input at 3-30 g/sec, Fault: met for 5 seconds in closed loop (H02S-11 signals switching from below 350 mVolts to above 500 mv), then the ECM monitored the H02S-11 signal for 2 minutes, and during that monitoring period, the H02S 11 signal was fixed at 350-500 mVolts too long (for about 16 seconds). P0130 02S-11 Circuit Closed Loop Performance Fault: DTC P0107, P0108, P0117, P0118, P0122, P0123, P0131, P0132, P0134, P0201, P0202, P0203, P0204, P0300, P0325, P0336, P0440, P0442, P0446, P0502, P0601, P0602, P1441 and P1621 not set, engine runtime over 3 minutes, engine speed 1200-3400 rpm, throttle position 10-40%, ECT input more than 149°F, all Fault: met for two seconds, then the ECM detected the engine was not in closed loop for 5 seconds of the 12.5 seconds test. P0130 H02S-11 Circuit (Bank 1 Sensor 1) Fault: Engine running, ECT input more than 167°F and the ECM detected that the H02S-11 signal was fixed between 400-550 mv, or the signal was always less than 55 mVolts or always more than 400 mv. P0130 H02S-11 Circuit (Bank 1 Sensor 1) Fault: DTC P0135, P0139, P0140 and P0141 not set, engine at operating temperature, engine speed between 1400-2400 rpm, engine load at 8-12%, mass airflow from 18-22 g/sec, throttle angle at 6-10%, then the ECM detected that the H02S-11 signal was more than 4.78v, or the H02S-11 Lambda signal was between 0.9-1v for 4 seconds with the H02S-12 signal was more than 650 mVolts or less than 300 mv, or the H02S-11 Lambda signal was over 1.2v with the H02S-12 signal more than 650 mv, or the Lambda signal was under 0.8v with the H02S-12 signal less than 300 mv. MULTIPLE INSTANCES OF THE SAME CODE: P0131 02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602 and P1441 not set, airflow above 3 g/sec, in closed loop, ECT input more than 158°F, throttle position 5-50%, condition met for 20 seconds, and ECM detected the 02S-11 signal was below 44 mVolts for 2 minutes. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, throttle angle from 3-40%, system voltage from 10-18v, air pump inactive, A/F ratio from 13-16.1 (14.5-14.8 on X), in closed loop, then the ECM detected that the H02S-11 signal was below 175 mVolts for 30 seconds (for 45 seconds on X), or with Power Enrichment Mode active, that the H02S-11 signal was below 600 mVolts for 10 seconds (for 55 seconds on X). P0131 H02S-11 Circuit Low Input (Bank I Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P0372 and P1371 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-11 signal was below 200 mv, condition met for 30 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: Engine running in closed loop, then the ECM detected that the H02S-11 signal that was less than 250 mVolts (less than 97 mVolts on engines), condition met for 2-4 minutes. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, system voltage over 9v, throttle angle from 3-40%, A/F ratio 14.5-14.8, then the ECM detected the H02S-11 signal remained under 175 mVolts in closed loop for 45 seconds, or remained below 600 mVolts for 55 seconds during Power Enrichment. P0131 H02S-11 Circuit Low Input (Bank I Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Lean Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 3.5-99%, Fault: met for 5 seconds, then the ECM detected the H02S-11 signal was less than 86 mVolts for 50 seconds. Power Enrichment Lean Test Fuel system in closed loop, P/E mode active, Fuel Cutoff not active, elapsed time since the test started 1 second, then the ECM detected the H02S-11 signal was under 598 mVolts for 30 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow tests all inactive, closed loop enabled, no injectors disabled, throttle angle from 3-25%, system voltage 8-18v, A/F ratio from 14.5-14.8, engine running with throttle position at 3-25%, all Fault: met for 3 seconds, then the ECM detected that the H02S-11 signal remained below 75 mVolts in closed loop, or that it remained below 575 mVolts in Power Enrichment mode. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0200, P0335, P0336, P0351-P0358, - P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, Fuel Trim Lean enabled, TP sensor angle from 2- 70%, then the ECM detected that the H02S-11 signal remained at less than 200 mVolts in closed loop, Fault: met for 33 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, engine running in closed loop with an A/F ratio of 14.5-14.8, throttle angle from 5-40%, then the ECM detected that the H02S-11 signal was less than 175 mVolts in closed loop, or was less than 600 mVolts in P/E mode for up to 15 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No ECM codes set, ECT input over 118°F, throttle angle at 3-20%, engine running in closed loop, Fuel Trim enabled, then the ECM detected the H02S-11 signal was under 200 mVolts for 30 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0132, and P0134, not set, ECT sensor input 179°F or higher, throttle position from 5.4-50 degrees, H02S-11 ready for testing, engine speed 800 rpm or more, MAP sensor input over 32 kPa, these Fault: met for 3 seconds, P0151 runs and passes, then the ECM detected that the H02S-11 signal was lean (356 mVolts or less) for 40 out of 50 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, in closed loop, then the ECM detected Lean Enable Test A/F ratio 14.5-14.8, throttle angle 3.5-99%, Fault: met for 5 seconds, the H02S-11 signal was less than 86 mVolts for 40 seconds. Power Enrichment Lean Test P/E mode active, Fuel Cutoff not active, elapsed time since the test started 10 seconds, the H02S-11 signal was less than 598 mVolts for 30 seconds (or less than 598 mVolts for 10 seconds on 7.4L V8). P0131 H02S-11 Circuit Low Input (Bank I Sensor 1) Fault: Engine running at a steady speed in closed loop, ECT input more than 176°F, IAT sensor input from 14-158°F, BAROMETRIC over 75 kPa, VSS input over 30 mph and then back to ero (0) mph, then the ECM detected the maximum H02S-11 signal was below 300 mv. P0131 02S-11 Circuit Low Input (Bank I Sensor 1) Fault: No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, ECM Memory, TP or VSS codes set, airflow more than 3 g/sec, ECT input over 158°F, system in closed loop, throttle position from 5-50%, all Fault: met for 3.8 seconds, then the ECM detected that the 02S-11 signal was less than 52 mVolts for 125 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP codes set, Catalyst, EGR and device controls inactive, system voltage at 11-18v, then Lean Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 3.5-99%, Fault: met for 5 seconds, then the ECM detected the H02S-11 signal was less than 86 mVolts for 50 seconds. Power Enrichment Lean Test Fuel system in closed loop, P/E mode active, Fuel Cutoff not active, elapsed time since the test started 1 second, then the ECM detected the H02S-11 signal was under 598 mVolts for 30 seconds. P0131 H02S-11 Circuit Low Input (Bank I Sensor 1) Fault: No AIR, ECT, EGR, EVAP, Injector, MAF, MAP or TP sensor codes set, A/F ratio from 13.0-16.5, throttle angle from 3-40%, Air pump off, system voltage 10-18v, then the ECM detected that the H02S-11 signal remained under 175 mVolts in closed loop, or with P/E active, the H02S signal remained below 600 mVolts for 15 seconds. P0131 H02S-11 Circuit Low Input (Bank I Sensor 1) Fault: DTC P0171, P0172, P0174, P0175, P0300-P0306, P0440, P0442, P0443, P0446, P0455 and P0460 not set, in closed loop, engine speed 1400-2400 rpm, engine load 8-12%, MAF input 18-22 g/sec, throttle angle 6-10%, AIR Test inactive, EVAP system high loading indicated, then the ECM detected the H02S-11 signal was too low. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-11 signal was below 200 mVolts for 33 seconds. P0131 H02S-11 Circuit Low Input (Bank 1 Sensor 1) Fault: No ECM codes set, closed loop enabled, throttle angle 2-10%, then the ECM detected that the majority of Bank 1 H02S-11 signal samples were below 141 mv, all Fault: met for 102 seconds. P0131 H02S-11 Circuit Low Input (Bank I Sensor 1) Fault: No Engine Sensor or Misfire codes set, A/F ratio at 14.71, closed loop active, then the ECM detected that the H02S-11 signal was under 87 mVolts for 90 seconds, or with P/E Mode active, it detected that the H02S-11 signal was under 300 mVolts for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0132 H02S-11 Circuit High Input (Bank I Sensor 1) Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602 and P1441 not set, airflow more than 3 g/sec, ECT input more than 158°F, system in closed loop, throttle position from 5-50%, all Fault: met for 30 seconds, then the ECM detected that the 02S-11 signal was more than 946 mv, or that the signal was more than 1042 mVolts while in Decel Fuel Cut mode, either condition met for 50 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, throttle angle from 3-40%, system voltage from 10-18v, air pump inactive, A/F ratio from 13-16.1 (14.5-14.8 on X), in closed loop, then the ECM detected that the H02S-11 signal was above 977 mVolts for 50 seconds (for 110 seconds on X), or with Decel Fuel Shutoff active, that the H02S-11 signal was above 200 mVolts for 10 seconds (for 55 seconds on X). P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P0372 and P1371 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-11 signal was above 774 mv, condition met for 30 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: Engine running in closed loop, throttle angle at 2-40%, then the ECM detected a H02S-11 signal of over 900 mVolts for 2-4 minutes. Refer to Monitor Test or code repair chart to test H02S-11 operation, related circuits and then the ECM. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, system voltage over 9v, throttle angle from 3-40%, A/F ratio 14.5-14.8, then the ECM detected the H02S-11 signal remained above 975 mVolts in closed loop for 45 seconds, or remained above 200 mVolts for 55 seconds during Power Enrichment. P0132 H02S-11 Circuit High Input (Bank I Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-11 signal was more than 976 mVolts for 40 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, system in closed loop, elapsed time since the test started over 2 seconds, then the ECM detected that the H02S-11 signal was more than 468 mVolts for 30 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow test inactive, system in closed loop, A/F ratio at 14.4-14.9, no injectors disabled, system voltage at 8-18v, throttle position at 3-25%, Fault: met for 3 seconds, then the ECM detected that the H02S-11 signal was over 900 mVolts for 50 seconds, or that it was below 200 mVolts in Decel Fuel Cutoff. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0200, P0335, P0336, P0351-P0358, P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, Fuel Trim Lean enabled, TP sensor angle from 2 70%, then the ECM detected that the H02S-11 signal remained at more than 775 mVolts in closed loop, Fault: met for 33 seconds. P0132 H02S-11 Circuit High Input (Bank I Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, A/F ratio at 14.5-14.8, system in closed loop, throttle angle from 5-40%, then the ECM detected that the H02S-11 signal was more 975 mVolts in closed loop, or was less than 200 mVolts in Decel Fuel Cutoff mode for 15 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No ECM codes set, throttle angle at 3-20%, ECT input over 118°F, in closed loop, A/F ratio 14.6-14.81, Fuel Trim enabled, then the ECM detected a H02S-11 signal of over 774 mVolts for 30 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0132 and P0134 not set, throttle position from 5.4-25 degrees, ECT sensor input 179°F or higher, in closed loop, H02S-11 ready for testing, engine speed over 800 rpm, MAP input more than 32 kPa, Fault: met for 3 seconds, then the ECM detected that the H02S-11 signal had been rich (534 mVolts or more) for 40 seconds out of 50 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 11-17v, in closed loop, then the ECM detected Rich Enable Test A/F ratio 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, than the ECM detected the H02S-11 signal was more than 976 mv, condition met for 40 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, elapsed time since the test started more than 10 seconds, then detected the H02S-11 signal was more than 468 mVolts for 30 seconds (for 10 seconds on 7.4L V8). P0132 H02S-11 Circuit High Input (Bank I Sensor 1) Fault: Engine running at a steady speed in closed loop, ECT input more than 176°F, IAT sensor input from 14-158°F, BARO over 75 kPa, VSS input over 30 mph and then back to ero (0) mph, then the ECM detected the minimum H02S-11 signal was above 300 mv. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests not active, no device controls enabled, system voltage from 11.7-18v, then with these tests enabled Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-11 signal was more than 976 mVolts for 40 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, system in closed loop, elapsed time since the start of test over 2 seconds, then the ECM detected that the H02S-11 signal was more than 468 mVolts for 30 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No AIR, ECT, EGR, EVAP, Injector, MAF, MAP or TP sensor codes set, A/F ratio 14.5-14.8, throttle angle from 3-40%, Air pump off, system voltage 9-18v, and ECM detected the H02S-11 signal remained above 977 mVolts in closed loop, or remained above 200 mVolts in Decel Fuel Shutoff, either condition met for 10 seconds. P0132 02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, ECM Memory, TP or VSS codes set, airflow more than 3 g/sec, ECT input over 158°F, system in closed loop, throttle position from 5-50%, all Fault: met for 3.8 seconds, then the ECM detected that the 02S-11 signal was more than 946 mVolts for 50 seconds, or that the 02S-1 1 signal was more than 1,042 mVolts for 2.5 seconds while in deceleration Fuel Cut-Off Mode. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) No H02S codes set, engine speed from 1400-2400 rpm, engine at operating temperature, engine load at 8-12%, mass airflow at 18 22 g/sec, throttle angle at 6-10%, H02S-12 test has completed, then the ECM determined that the difference between the front and rear H02S signals was more than expected for 2 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No ECM codes set, closed loop enabled, throttle angle at 2-10%, then the ECM detected the majority of front H02S-11 signal samples were over 853 mv, all Fault: met for 102 seconds. P0132 H02S-11 Circuit High Input (Bank I Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and - P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-11 signal was above 775 mVolts for 33 seconds. P0132 H02S-11 Circuit High Input (Bank 1 Sensor 1) Fault: No Engine Sensor or Misfire codes set, A/F ratio at 14.71, closed loop active, then the ECM detected that the H02S-11 signal was over 787 mVolts for 90 seconds or with DFCO mode active, it detected that the H02S-11 signal was over 587 mVolts for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602 and P1441 not set, ECT input more than 167°F, engine speed at 1800-2300 rpm, system in closed loop, throttle position from 8-15%, EVAP Purge duty cycle commanded to over 80%, Purge Learn Memory more than around 0.86, all Fault: met for 30 seconds when the diagnostic completes its test, then the ECM detected the average 02S-11 response times were over 249 ms for rich to lean sweeps or were 249 ms for lean to rich sweeps, and that the ratio of response times were more than 6 or less than 0.2. P0133 H02S-11 Slow Response (Bank I Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP Misfire or TP sensor codes set, engine runtime 1 minute in closed loop, throttle angle from 3-40%, system voltage from 10-18v, engine speed from 1000 3000 rpm, ECT input more than 122°F, not in P/N, MAF input from 10-30 g/sec, air pump inactive, then the ECM detected the H02S 11 rich-lean average transition response time was longer than 105 ms (L-R over 148 ms and R-L over 110 ms on X). P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0114, P0115, P0125, P0131, P0132, P0134, P0135, P0171-P0175, P0410, P1114, P1115 and P1133 not set, system voltage over 9v, ECT input more than 122°F and engine runtime over 120 seconds, engine speed at 1000-1700 rpm in closed loop, airflow from 12-28 g/sec, EVAP duty cycle under 90%, in closed loop, then the ECM detected the average H02S-11 lean-rich response time or rich-lean response time was over 110-150 ms, condition met for over 100 seconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, system in closed loop for 60 seconds, engine speed from 1000-3000 rpm, ECT input more than 122°F, MAF input from 10-50 g/sec, then the ECM detected the H02S-11 average lean-rich was more than 145 ms, and the average rich lean response time was more than 135 ms during the test period. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0131, P0132, P0134 and P0135 not active, EGR and Catalyst Test inactive, no device controls active, system voltage from 11.7-18v, in closed loop, ECT input more than 135°F, MAF input from 15-55 g/sec, engine speed from 1100-3000 rpm, engine runtime over 75 seconds, EVAP purge enabled, time in closed loop over 100 seconds, the ECM detected that the average lean-rich response time was over 125 ms, or the average rich-lean response time (above 600 mVolts to below 300 mv) was over 125 milliseconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, P0155 and P1133 not set, AIR, Catalyst and EGR Flow test inactive, no injectors disabled, engine runtime over 202 seconds, system voltage 8-18v, engine speed 1200-2800 rpm in closed loop, throttle position over 3%, ECT sensor input over 167°F, MAF input from 15-35 g/sec, Transmission not in Park, Reverse or Neutral, all Fault: met for 3 seconds, then the ECM detected that the H02S-11 lean to rich average transition time or that the H02S-11 rich to lean average transition response time was longer than 200 ms during the sample period, or that the H02S signal was from 325-625 mVolts during the sample period. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, isfire or TP sensor codes set, engine running in closed loop with an A/F ratio of 14.5-14.8, ECT sensor input over 122°F, engine speed 1000-3000 rpm, MAF sensor input at 10-30 g/sec, then the ECM detected that the H02S-11 L-R response time was over 63 ms, or that the H02S-11 R-L response time was over 190 ms. P0133 H02S-11 Slow Response (Bank I Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0200, P0335, P0336, P0351-P0358, P1258 not set, engine runtime over 2 minutes in closed loop, system voltage over 9v, ECT sensor input more than 122°F, AIR, EGR and Catalyst tests not active, engine speed 1000-2300 rpm, MAF sensor airflow 20-50 g/sec, EVAP purge duty cycle over 0%, then the ECM detected that the H02S-11 lean to rich response time (below 300 mVolts to over 600 mv) was over 250 ms, or that the H02S-11 rich to lean response time was over 250 ms, either condition met for one minute. P0133 H02S-11 Slow Response (Bank I Sensor 1) Fault: No ECM codes set, closed loop enabled, engine speed 1000-1700 rpm, Airflow from 12-28 g/sec, EVAP duty cycle under 100%, then the ECM detected a H02S-11 L-R average response time of over 50 ms, or a R-L average response time of over 100 ms, all Fault: met for 100 seconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: DTC P0117, P0118, P0121, P0122, P0123, P0135 and P1133 not set, this test has not completed this key cycle, low coolant level not present, system voltage 9-18v, then the ECM detected that the average H02S-11 lean-rich response time was over 150 ms, or the average rich-lean response time was over 150 ms. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, DTC P0131, P0132, P0134 and P0135 not active, EGR and Catalyst Tests inactive, no device controls active, system voltage over 9v, system in closed loop, ECT input more than 135°F, MAF input from 15-55 g/sec, engine speed from 1100-3000 rpm, engine runtime over 75 seconds, EVAP purge enabled, Fault: met for 2 seconds, then with closed loop enabled for over 100 seconds, the ECM detected that the average lean to rich response time (from below 300 mVolts to above 600 mv) was more than 125 milliseconds, or that the average rich to lean response time (from above 600 mVolts to below 300 mv) was over 125 milliseconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: Engine running at a steady speed in closed loop, ECT input more than 176°F, IAT sensor input from 14-158°F, BAROMETRIC over 75 kPa, VSS input over 30 mph and then back to ero (0) mph, then the ECM detected that the H02S-11 response rate was more than 1, and that the H02S-11 switch rate was longer than 5 seconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault:- Engine running at idle speed, ECT input more than 158°F, then the ECM detected that the H02S-11 average response time to switch from rich-lean or from lean-rich was 1.1 seconds or longer. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No AIR, ECT, EGR, EVAP, Injector, MAF, MAP or TP sensor codes set, A/F ratio from 14.5-14.8, engine runtime in closed loop over 1 minute, system voltage from 9-18v, ECT input more than 122°F, MAF input from 10-30 g/sec, vehicle not in P/N, Air pump off, engine speed from 1000-3000 rpm, then the ECM detected the H02S-11 lean to rich average transition response time was longer than 94 milliseconds, or the H02S-11 average transition response time was longer than 105 milliseconds. P0133 02S-11 Slow Response (Bank 1 Sensor 1) Fault: No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, ECM Memory, TP or VSS codes set, engine runtime over 10 seconds, engine speed at 1600-2600 rpm, ECT input over 167°F, system in closed loop, throttle position from 14-26%, EVAP Purge commanded on at over 40%, Purge Learn Memory more than 191, then the ECM detected the average 02S-11 response time was over 249 ms for rich-lean sweeps or for lean-rich sweeps, or the ratio of response times was more than 4.25 or was less than 0.44. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, EGR and Catalyst Test inactive, device controls not enabled, system voltage from 11.7-18v, then with this test enabled Response Test Enabled DTC P0131, P0132, P0134 and P0135 not active, Fuel system in closed loop, ECT input more than 135°F, engine runtime over 75 seconds, MAF input at 15-55 g/sec, engine speed 1100-3000 rpm, EVAP Purge enabled, all Fault: met for over 2 seconds, then with closed loop mode enabled for over 100 seconds, the ECM detected that the average Bank 1 lean-to-rich response time (from below 300 mVolts to above 600 mVolts was more than 125 ms or that the average Bank 1 rich-to-lean response time (from above 600 mVolts to below 300 mVolts was more than 125 ms. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) No ECM codes set, closed loop enabled, then the ECM detected the average response time for the H02S-11 was over 3.3 seconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: No ECM codes set, ECT and IAT inputs below 122°F and within 11°F of each other at startup, throttle angle at 2-10%, closed loop enabled and the ECM detected the average H02S-11 lean-rich or H02S-11 rich-lean response time exceeded 100 milliseconds. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, ECT input more than 122°F and engine runtime over 120 seconds, engine speed at 1000-2300 rpm in closed loop, airflow from 20-50 g/sec, EVAP duty cycle over 0%, in closed loop, then the ECM detected that the H02S-11 lean rich average response time or that the rich-lean average response time was over 250 ms, condition met for over one minute. P0133 H02S-11 Slow Response (Bank 1 Sensor 1) No Engine Sensor or Misfire codes set, A/F ratio at 14.7, closed loop active, engine speed 1500-3200 rpm, Airflow from 5-20 g/sec, then the ECM detected that the average H02S-11 lean-rich response time was under 94 ms, or that the average H02S-11 rich-lean response time was under 125 ms, or if less than 10 switches take place, or the transition ratio is more than 2.8 or less than 0.6, any of these Fault: met in the 100 second H02S test. MULTIPLE INSTANCES OF THE SAME CODE: P0134 02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602 and P1441 not set, engine runtime over 30 seconds, airflow more than 3 g/sec, ECT input more than 158°F, throttle position from 4-56%, all Fault: met for 20 seconds, then the ECM detected the 02S-11 signal was from 399-499 mv, condition met for 125 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, engine runtime 200 seconds in closed loop, throttle angle from 3-40%, system voltage from 10-18v, engine speed from 1000-3000 rpm, ECT input more than 122°F, not in P/N, MAF input from 10-30 g/sec, air pump inactive, then the ECM detected that the H02S-11 signal remained between 408-512 mVolts for 30 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: DTC P0100, P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0125, P0200, P0372 and P1371 not set, system voltage over 9v, AIR and Catalyst Tests not active, system in closed loop, engine runtime over 68 seconds, ECT input more than 118°F, then the ECM detected that the H02S-11 signal remained between 352-552 mv, condition met for 60 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, system in closed loop for 200 seconds, ECT input more than 122°F, MAF input from 10-50 g/sec, then the ECM detected the H02S-11 signal remained between 300-600 mv, condition met for longer than 30 seconds during the test period. P0134 H02S-11 Insufficient Activity (Bank I Sensor 1) Fault: No ECM codes set, engine runtime over 40 seconds, ECT over 110°F, throttle angle over 3%, then the ECM detected the Bank 1 H02S-11 signal remained steady at 350-557 mVolts for 30 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0135 not active, EGR and Catalyst Tests inactive, device controls off, system voltage from 11.7-18v, in closed loop, ECT input over 137°F, MAF input is 13 g/sec or more, engine runtime over 120 seconds, engine speed from 1100-3000 rpm, Decel Fuel Cutoff not active, system in closed loop, then the ECM detected that the H02S-11 signal was from 300-600 mVolts for 80 seconds. P0134 H02S-11 Insufficient Activity (Bank I Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow tests all inactive, no injectors disabled, engine runtime over 200 seconds, system voltage 8-18v, a change in throttle angle over 5% occurred 4 times, then the ECM detected that the H02S-11 signal remained fixed within a range of 400-500 mVolts for approximately 57 seconds during the test period. P0134 H02S-11 Insufficient Activity (Bank I Sensor 1) DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0200, P0335, P0336, P0351-P0358, P1258 not set, engine runtime over 50 seconds in closed loop, system voltage over 9v, ECT sensor input more than 122°F, AIR, EGR and Catalyst test not active, then the ECM detected that the H02S-11 signal was fixed from 300-550 mVolts for 60 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, engine runtime over 4 minutes, ECT over 118°F, then the ECM detected that the H02S-11 signal remained steady between 400-500 mv. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No ECM codes set, ECT over 118°F, engine runtime over 68 seconds, then the ECM detected the H02S-11 signal remained steady from 352-552 mVolts for 45 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: DTC P0117, P0118, P0121, P0122, P0123, and P0560 not set. ECT sensor input 163°F, Calculated throttle position switch open, throttle angle from 1-81.6 degrees, engine speed over 800 rpm, then the ECM detected that the H02S-11 signal remained between 307 mVolts and 609 mVolts for 50 out of 64 seconds in the test period. P0134 H02S-11 Insufficient Activity (Bank I Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0135 not active, Decel Fuel Cutoff not active, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, engine runtime over 2 minutes, system in closed loop, ECT input more than 140°F, MAF input 10 g/sec or more, then the ECM detected the H02S-11 signal was fixed from 300-600 mv, condition met for 80 seconds (over 40 seconds on 7.4L V8). P0134 H02S-11 Insufficient Activity (Bank I Sensor 1) Fault: Engine running at a steady speed in closed loop, ECT input more than 176°F, IAT sensor input from 14-158°F, BAROMETRIC over 75 kPa, VSS input over 30 mph and then back to ero (0) mph, then the vehicle speed increased to over 20, then the ECM detected that the H02S-11 signal remained at or below 300 mv, or the H02S-11 signal remained at or higher than 600 mVolts for 10 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No AIR, ECT, IAT, Injector, MAF, MAP or TP sensor codes set, system voltage from 9-18v, ECT input more than 122°F, engine runtime over 200 seconds, then the ECM detected the H02S-11 signal remained between 408-512 mVolts for longer than 29 seconds. P0134 02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, ECM Memory, TP or VSS codes set, engine runtime over 30 seconds, airflow more than 3 g/sec, ECT input over 158°F, system in closed loop, throttle position from 4-56%, all Fault: met for 20 seconds, then the ECM detect that the 02S-1 1 signal was from 399 mVolts to 499 mv, condition met for 125 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, EGR and Catalyst Tests inactive, device controls off, system voltage 11-18v, engine runtime 120 seconds, then during the H02S Temperature Test Decel Fuel Cutoff not active, ECT input more than 137°F, MAF sensor input more than 13 g/sec. H02S Open Test Enable 02 Sensor temperature test equal to true, DTC P0135 not active, Fuel system in closed loop, then the ECM detected that the H02S signal was from 300-600 mv, Fault: met for over 1 minute. P0134 H02S-11 Insufficient Activity (Bank I Sensor 1) Fault: DTC P0130 and P0150 not set, engine at operating temperature, engine runtime over 25 seconds, engine speed from 1400-2400 rpm, engine load at 8-12%, mass airflow at 18-22 g/sec, throttle angle at 6-10%, then the ECM detected that the difference in H02S-11 signal during a 10 ms period was more than expected. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, system in closed loop, engine runtime over 70 seconds, then the ECM detected that the H02S-11 signal remained between 350-550 mv, condition met for 60 seconds. P0134 H02S-11 Insufficient Activity (Bank 1 Sensor 1) Fault: No ECM codes set, closed loop enabled, throttle angle 2-10%, then the ECM detected the Bank 1 H02S-11 signal remained steady from 356-497 mv, all Fault: met for 102 seconds. P0134 H02S-11 Circuit Open/Inactive (Bank I Sensor 1) Fault: No Engine Sensor or Misfire codes set, engine runtime 1 minute, ECT input above 140°F, in closed loop A/F ratio at 14.71, throttle angle off idle over 6.5%, then the ECM detected that the H02S-11 signal remained from 391-491 mv, condition met for 90 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP and TP sensor code set, ECT and IAT sensor inputs less than 95°F and within 43°F of each other at startup, system voltage from 10-18v, average MAF input less than 20 g/sec, air pump inactive, then the ECM detected that the Bank 1 H02S-11 signal remained within 150 mVolts of bias voltage (450 mv) for too long a period of time Note The amount of time varies depending upon the ECT input and average airflow since startup (not to exceed 2.5 minutes). P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P01 32, P0133, P0134 and P0200 not set, ECT and IAT sensor inputs less than 122°F and within 5°F of each other at startup, system voltage from 10-16v, AIR and Catalyst Tests not active, MAF input less than 40 g/sec, throttle angle under 20%, then the ECM detected that the H02S-11 signal remained from 300-700 mVolts for a calculated amount of time (depends on ECT and MAF inputs). P0135 H02S-11 Heater Circuit (Bank I Sensor 1) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, system voltage from 9-16v, ECT and IAT inputs less than 95°F and within 11 °F of each other at startup, average MAF input for the sample period less than 20 g/sec (less than 19 g/sec on the 1), then the ECM detected the H02S-11 signal remained within 150 mVolts of bias voltage (450 mv) for a longer amount of time than it should (time ranges from 50-80 seconds depending upon the ECT and MAF inputs since startup). P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.7L engine), ECT and IAT inputs less than 91°F and the difference between ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-11 signal remained within 150 mVolts of the startup H02S-11 signal voltage, Fault: met for 130 seconds after a cold startup. Note Test invalid if system voltage is out-of-range for 4 seconds. P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: No H02S codes set, system voltage during the current measurement steady within one volt of Actual system voltage, engine speed from 500-3000 rpm, MAF sensor input from 4-30 g/sec, H02S Over Temperature Control inactive, then the ECM detected that the H02S-11 heater current was out-of-range. P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0200, P0335, P0336, P0351-P0358 and P1258 not set, engine running with system voltage from 8-18v, AIR, EGR and Catalyst test inactive, then the ECM detected that the H02S-11 signal remained fixed between 300 mVolts and 700 mv) for a preset period of time (depends on ECT and Airflow signal). P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, ECT and IAT sensor inputs less than 95°F and within 11°F of each other at startup, average MAF sensor airflow for sample period less than 20 g/sec, system voltage from 8-18v, then the ECM detected that the H02S-11 signal remained within 150 mVolts of bias voltage (450 mv) for over 30-90 seconds (actual time is from 42 seconds up to 2 minutes). P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: No ECM codes set, ECT and IAT inputs below 122°F and less than 5°F of each other at startup, engine running, MAF Airflow less than 40 g/sec, throttle angle under 20%, then the ECM detected that the H02S-11 signal remained from 300-700 mVolts for too long. P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0117, P0118 and P0134 not set, engine coolant temperature dropped at least 50°F from the end of the last ignition cycle to the start of this ignition cycle, system voltage 11v or higher, average Bank 1 H02S-11 bias voltage between 352 mVolts and 546 mv, engine did not stall during this test, then the ECM monitored the signal from the Bank 1 H02S-11 to determine when it became either 151 mVolts less than or 151 mVolts more than the average Bank 1 H02S-11 bias voltage for 100 milliseconds. If it takes too long, the ECM will set DTC P0135.P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: Engine runtime over 2 seconds, MAF input under 27 g/sec on 4.3L, 35 g/sec on 5.OU5.8L or 45 g/sec on 7.4L, system voltage 9-17v, ECT and IAT inputs less than 91-104°F and difference between the ECT and IAT inputs less than 9-14°F, then the ECM detected that the H02S-11 signal remained within 150 mVolts of the startup H02S-11 signal, condition met for 150 seconds after cold startup. P0135 H02S-11 Heater Circuit (Bank I Sensor 1) Fault: Engine at idle speed for 1 minute, then vehicle accelerated from a stop for 5 seconds, then the ECM detected the H02S-11 heater circuit was below 2.5v with the heater off, or the circuit was over 0.31 v with the heater active, either condition met for 5 seconds. P0135 H02S-11 Heater Circuit (Bank I Sensor 1) Fault: Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec, ECT and IAT sensor inputs below 91°F and the ECT and IAT inputs within 9°F and the ECM detected the H02S-11 signal remained within 150 mVolts of the startup H02S 11 signal, all Fault: met for 130 seconds after a cold startup. P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: No AIR, ECT, IAT, Injector, MAF, MAP or TP sensor codes set, Air pump off, system voltage from 9-18v, startup ECT and IAT sensor inputs less than 95°F and ECT and IAT inputs within 42°F of each other, engine runtime over 200 seconds, then the ECM detected that the H02S-11 signal remained within 150 mVolts of bias voltage (450 mv) for a longer time than normally required (the amount of time varies by engine temperature at startup and average airflow). P0135 H02S-11 Heater Circuit (Bank I Sensor 1) Fault: Engine running, then the ECM detected that the current on the H02S-11 heater circuit exceeded 2 amps, or that the current was 0.2 amps or less. P01 35 H02S-11 Heater Circuit (Bank I Sensor 1) Fault: Engine running, system voltage from 11-15.5v, H02S-11 heater on, then the ECM detected that the H02S-11 heater signal was more than 3.6v, or less than 2.3v for 50 ms, or that the system readiness was not detected after 20 seconds of operation on a startup that occurred over 4 minutes after the last engine startup. P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: No ECM codes set, both ECT/IAT inputs below 122°F and within 11°F of each other at startup, throttle angle under 16%, then the ECM detected the H02S-11 signal remained from 300-700 mVolts for over 200 seconds with ECT input at -40°F, or for over 48 seconds with an ECT input of over 148°F. P0135 H02S-11 Heater Circuit (Bank 1 Sensor 1) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and P1258 not set, startup ECT and IAT sensor inputs less than 122°F and within 14.5°F of each other at engine startup, system voltage from 10-18v, AIR and Catalyst Tests not active, then the ECM detected that the H02S-11 voltage remained from 300-700 mVolts for a predetermined amount of time (length of time depends on engine coolant temperature and air flow). MULTIPLE INSTANCES OF THE SAME CODE: P0136 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: Engine speed over 1500 rpm in closed loop, IAT input 14-158°F, MECT input over 176°F, BAROMETRIC input over 75 kPa, fuel level over 25%, VSS input 20-50 mph, then the ECM detected that the H02S-12 maximum voltage was less than 600 mVolts for 8 minutes, or that the H02S-12 minimum voltage was more than or equal to 300 mVolts after a maximum voltage check in Fuel Shutoff mode. P0136 H02S-12 Circuit (Bank 1 Sensor 2) Fault: Engine running, engine speed over 1600 rpm, ECT input more than 158°F, engine speed over 1600 rpm, then the ECM detected that the H02S-12 signal remained fixed between 400-500 mv. P0136 H02S-12 Circuit (Bank I Sensor 2) Fault: No AIR system or EVAP codes set, H02S-12 indicating closed loop operation, system voltage over 11v, AIR System not enabled, AIR System test not active, engine runtime over 10 minutes, low fuel not indicated, TWC temperature less than 1472°F, then the ECM detected that the H02S-12 signal was less than 40 mv. P0137 H02S-12 Circuit Low Input (Bank I Sensor 2) Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602 and P1441 not set, MAF input over 5.5 g/sec, ECT input over 104°F, in closed loop, throttle angle at 5-50% for 4 seconds, and ECM detected the H02S input below 43 mVolts (below 22 mVolts on T) for 150 seconds. P0137 H02S-12 Circuit Low Input (Bank I Sensor 2) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, throttle angle from 3-40%, system voltage from 10-18v, air pump inactive, A/F ratio from 13-161 (14.5-14.81 on X), in closed loop, then the ECM detected that the H02S-12 signal was below 10 mVolts for 3.5 minutes (below 75 mVolts on X), or with Power Enrichment Mode active, that the H02S-12 signal was below 600 mVolts for 10 seconds (for 7.5 minutes on X). P0137 H02S-12 Circuit Low Input (Bank 1 Sensor 2) Fault: No ECM codes set, closed loop enabled, then the ECM detected that the H02S-12 signal remained less than 148 mVolts (200 ms). P0137H02S-12 Circuit Low Input (Bank 1 Sensor 2) Fault: No ECM codes set, engine running, throttle angle 2-40% for 4.5 minutes and ECM detected the H02S signal was below 100 mv. P0137 H02S-12 Circuit Low Input (Bank 1 Sensor 2) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-12 signal was below 80 mVolts for 80 seconds, or with Power Enrichment mode enabled for over 1 second, that the H02S-11 signal was below 420 mVolts for 10 seconds in P/E mode. P0137 H02S-12 Circuit Low Input (Bank I Sensor 2) Fault: No Engine Sensor or Misfire codes set, A/F ratio at 14.71, closed loop active, then the ECM detected that the H02S-12 signal was under 25 mVolts for 100 seconds, or with P/E Mode active, it detected that the H02S-12 signal was under 291 mVolts for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: DTC P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, P0201, P0202, P0203, P0204, P0300, P0335, P0440, P0442, P0446, P0506, P0507, P0601, P0602 and P1441 not set, airflow more than 5.5 g/sec, ECT input more than 104°F, system in closed loop, throttle position from 5-50% for 4 seconds, then the ECM detected that the H02S-12 signal was more than 1042 mv, condition met for 50-55 seconds. P0138 H02S-12 Circuit High Input (Bank I Sensor 2) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, throttle angle from 3-40%, system voltage from 10-18v, air pump inactive, A/F ratio from 13-161 (14.5-14.81 on X), in closed loop, then the ECM detected that the H02S-12 signal was above 999 mVolts for 5 minutes (for 7.5 minutes on X), or with Decel Fuel Shutoff active, that the H02S-12 signal was above 200 mVolts for 100 seconds (for 7.5 minutes on X). P0138 H02S-12 Circuit High Input (Bank I Sensor 2) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P0372 and P1371 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-12 signal was above 938 mv, condition met for 38 seconds. P01 38 H02S-12 Circuit High Input (Bank I Sensor 2) Fault: No ECM codes set, engine running in closed loop, throttle angle from 2-40%, all Fault: met for 4.5 minutes, then the ECM detected the Bank 1 H02S-12 signal remained over 900 mv. P0138 H02S-12 Circuit High Input (Bank I Sensor 2) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, system voltage over 9v, throttle angle from 3-40%, A/F ratio 14.5-14.8, then the ECM detected the H02S-12 signal remained above 999 mVolts in closed loop for 45 seconds, or remained above 200 mVolts for 55 seconds in Decel Fuel Shutoff. P0138 H02S-12 Circuit High Input (Bank I Sensor 2) No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-12 signal was more than 994 mVolts for 110 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, fuel system in closed loop, elapsed time since the test started over 2 seconds, then the ECM detected that the H02S-12 signal was more than 469 mVolts for 40 seconds. P0138 H02S-12 Circuit High Input (Bank I Sensor 2) No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow test inactive, engine running in closed loop, no fuel injectors disabled, system voltage from 8-18v, throttle position at 3-25%, all Fault: met for 5 seconds, then the ECM detected that the H02S-12 signal remained above 950 mVolts for 112 seconds in closed loop, or that the H02S-12 signal remained above 200 mVolts for 11 seconds during Fuel Cutoff mode. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0200, P0335, P0336, P0351-P0358, P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, Fuel Trim Lean enabled, TP sensor angle from 2 70%, then the ECM detected that the H02S-12 signal remained above 930 mVolts for 40 seconds, or with the Decel Fuel Cutoff Mode enabled for 3 seconds, then the ECM detected that the H02S-12 signal remained above 480 mVolts with DFCO enabled for 5 seconds. P0138 H02S-12 Circuit High Input (Bank I Sensor 2) Fault: No ECM codes set, throttle angle from 3-20%, closed loop A/F ratio 14.6-14.81, Fuel Trim Learn on, then the ECM detected a H02S-12 signal that remained over 930 mVolts for 38 seconds. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire, TCM or TP sensor codes set, ECT sensor input over 165°F, engine running in closed loop with an A/F ratio of 14.5-14.8, throttle angle from 5-40%, then the ECM detected that the H02S 12 signal was more than 999 mVolts during closed loop, or that the signal was less than 200 mVolts in Decel fuel cutoff mode. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, in closed loop, then the ECM detected Rich Enable Test A/F ratio 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, that the H02S-12 signal was more than 976 mVolts for 40 seconds (more than 976 mVolts for 80 seconds on 7.4L V8). Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, elapsed time since the test started more than 10 seconds, that the H02S-12 signal was more than 468 mv, condition met for 30 seconds (for 10 seconds on 7.4L V8). P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, ECM Memory, TP or VSS codes set, airflow more than 5.5 g/sec, ECT input over 104°F, system in closed loop, throttle position from 5-50%, all Fault: met for 140 seconds, then the ECM detected that the H02S-12 signal was more than 1042 mVolts for 125 seconds. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: No ECM codes set, Intrusive Test and device controls off, in closed loop, throttle angle from 0-50%, Fault: met for 5 seconds, Rich Test enabled and the ECM detected a H02S-12 signal of over 976 mv, or with Decel Fuel Cutoff Mode enabled, and time between tests over 2 seconds, then Decel Fuel Cutoff rich test on, a H02S 12 signal over 486 mv. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: No AIR, ECT, EGR, EVAP, Injector, MAF, MAP or TP sensor codes set, A/F ratio from 14.5-14.8, throttle angle from 3-40%, Air pump off, system voltage from 9-18v, then the ECM detected the H02S-121 signal remained above 999 mVolts during closed loop for 5 minutes, or in Decel Fuel Cutoff Mode, that the H02S-12 signal remained above 200 mv, condition met for 100 seconds. P0138 H02S-12 Circuit High Input (Bank I Sensor 2) Fault: Engine running, system voltage over 11v, catalytic converter temperature less than 1472°F, then the ECM detected that the H02S-12 signal was more than 1080 mVolts for over 5.1 seconds. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) No ECM codes set, engine running in closed loop, throttle angle from 2-40%, Fault: met for 4.5 minutes, and the ECM detected that the Bank 1 H02S-12 signal remained over 900 mv. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) Fault: DTC P0101, P0102, P0103, P0112, P0113, P0117, P0118, P0125, P0200, P0335, P0336, P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-12 signal was above 775 mVolts for 33 seconds. P0138 H02S-12 Circuit High Input (Bank 1 Sensor 2) No Engine Sensor or Misfire codes set, A/F ratio at 14.71, closed loop active, then the ECM detected that the H02S-12 signal was over 1.065v for 90 seconds or with DFCO mode active, it detected that the H02S-12 signal was over 587 mVolts for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0139 H02S-12 Circuit Slow Response (Bank 1 Sensor 2) No ECM codes set, test not completed for current ignition cycle, Low Coolant Level not on, then the ECM detected the Bank 1 H02S-12 average time to change from L-R of more than 150 ms. P0139 H02S-12 Slow Response (Bank I Sensor 2) Fault: Engine running, H02S-12 in closed loop operation, system voltage over 11v, then the ECM detected that the H02S-12 signal was fixed at over 600 mVolts or stuck at less than 600 mv, or that the H02S-12 signal was more than 200 mVolts during Decel Fuel Cutoff. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: P0105P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0171 P0201 P0202 P0203 P0204 P0300 P0335 P0440 P0442 P0446 P0506 P0507 P0601 P0602 and P1441 not set, engine runtime over 30 seconds, airflow more than 5.5 g/sec, ECT input more than 104°F, throttle position from 4-56%, all Fault: met for 20 seconds, then the ECM detected that the H02S-11 signal was from 425-460 mVolts for 125 seconds. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, engine runtime 200 seconds in closed loop, throttle angle from 3-40%, system voltage from 10-18v, engine speed from 1000-3000 rpm, ECT input more than 122°F, not in P/N, MAF input from 10-30 g/sec, air pump inactive, then the ECM detected that the H02S-12 signal remained between 412-499 mVolts for 30-90 seconds. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: Engine runtime over 40 seconds, ECT input over 108°F, throttle angle input over 3%, then the ECM detected the Bank 1 H02S-12 signal remained steady from 350-560 mVolts for 2 minutes. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0200 P0372 and P1371 not set, system voltage over 9v, AIR and Catalyst Tests not active, system in closed loop, engine runtime over 68 seconds, ECT input more than 118°F, then the ECM detected that the H02S-12 signal remained between 391-491 mv, condition met for 2.5 minutes. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, in closed loop from 200-240 seconds, ECT input more than 122°F, MAF input from 10-50 g/sec, then the ECM detected the H02S-12 signal remained between 425-475 mv, condition met for longer than 90 seconds during the test period. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0141 not active, EGR and Catalyst Tests inactive, device controls off, system voltage from 11.7-18v, in closed loop, ECT input over 137°F, MAF input is 13 g/sec or more, engine runtime over 120 seconds, engine speed from 1100-3000 rpm, Decel Fuel Cutoff not active, system in closed loop, then the ECM detected that the H02S-12 signal was from 400-473 mVolts for 100 seconds. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow test inactive, engine runtime over 200 seconds, system voltage 8-18v, A/F ratio from 14.4-14.9, closed loop enabled, throttle angle from 3-25%, a change in throttle angle of over 5% occurred at least 7 times, all Fault: met for 5 seconds, then the ECM detected that the H02S-12 signal remained fixed between 400-500 mVolts for around 190 seconds. P0140 H02S-12 Insufficient Activity (Bank I Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351-P0358, P1258 not set, system voltage over 9v, engine runtime over 70 seconds in closed loop mode, AIR, EGR and Catalyst tests not active, then the ECM detected that the H02S-12 signal remained steady between 409-489 mVolts for 2.5 minutes during the H02S test. P0140 H02S-12 Insufficient Activity (Bank I Sensor 2) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, engine runtime 4 minutes and the ECM detected the H02S-12 signal was fixed from 412-490 mv. P0140 H02S-12 Insufficient Activity (Bank I Sensor 2) No ECM codes set, ECT input of over 118°F, engine runtime over 68 seconds, in closed loop, then the ECM detected the Bank 1 H02S-12 signal steady from 391-491 mVolts for 2.5 minutes. P0140 H02S-12 Insufficient Activity (Bank I Sensor 2) No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0131 P0132 P0134 P0135 not active, EGR and Catalyst Tests inactive, no device controls active, system voltage over 9v, system in closed loop, ECT input more than 135°F, MAF input from 15-55 g/sec, engine speed from 1100-3000 rpm, engine runtime over 75 seconds, EVAP purge enabled, Fault: met for 2 seconds, then with closed loop enabled for over 100 seconds, the ECM detected that the average H02S-12 lean-rich or the average rich-lean response time was over 125 milliseconds. P0140 H02S-12 Insufficient Activity (Bank I Sensor 2) No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, TP or VSS codes set, engine runtime 30 seconds, MAF input over 3 g/sec, ECT input over 158°F, in closed loop, throttle angle from 4-56%, Fault: met for 20 seconds, then the ECM detected the H02S-12 signal was from 399-499 mVolts for 125 seconds. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: No ECM codes set, Intrusive Tests and device controls off, engine runtime over 2 minutes, Sensor Open Test enabled, closed loop mode enabled, then the ECM detected that the H02S-12 signal was fixed between 299-598 mv, Fault: met for 60 seconds. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: Engine running, system voltage over 11v, catalytic converter temperature less than 1472°F, then the ECM detected that the H02S-12 signal was fixed between 401-519 mVolts for 60 seconds. P0140 H02S-11 Insufficient Activity (Bank 1 Sensor 2) Fault: No AIR, ECT, IAT, Injector, MAF, MAP or TP sensor codes set, system voltage from 9-18v, ECT input more than 122°F, engine runtime over 200 seconds, then the ECM detected the H02S-11 signal remained between 412-499 mVolts for longer than 29 seconds. P0140H02S-12 Insufficient Activity (Bank I Sensor 2) Engine runtime over 40 seconds, ECT input over 108°F, throttle angle input over 3%, then the ECM detected that the H02S-12 signal remained steady from 350-560 mVolts for 2 minutes in the test. P0140 H02S-12 Insufficient Activity (Bank 1 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351-P0358, P1120, P1220, P1221 and P1258 not set, AIR and Catalyst Tests inactive, system in closed loop, engine runtime over 70 seconds, then the ECM detected the H02S-12 signal remained between 409-489 mVolts for 2.5 minutes. P0140 H02S-12 Circuit Open/Inactive (Bank I Sensor 2) Fault: No Engine Sensor or Misfire codes set, engine runtime 1 minute, ECT input above 140°F, in closed loop A/F ratio at 14.71, throttle angle off idle over 6.5%, then the ECM detected that the H02S-12 signal remained from 391-491 mv, condition met for 90 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0171 P0201 P0202 P0203 P0204 P0300 P0335 P0440 P0442 P0446 P0506 P0507 P0601 P0602 and P1441 not set, engine runtime less than 400 seconds, ECT and IAT inputs less than 104°F and less than 13°F difference at startup, throttle angle under 18%, average MAF under 20 g/sec and ECM detected the H02S-12 signal was below 150 mVolts for 100-190 seconds. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP and TP sensor code set, ECT and IAT sensor inputs less than 95°F and within 43°F of each other at startup, system voltage from 10-18v, average MAF input less than 20 g/sec, air pump inactive, then the ECM detected that the Bank 1 H02S-12 signal remained within 150 mVolts of bias voltage (450 mv) for too long a period of time. Note The amount cf time varies depending upon the ECT input and average airflow since startup (not to exceed 2.5 minutes). P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: DTC P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0132 P0133 P0134 P0200 not set, ECT and ]AT sensor inputs less than 122°F and within 5°F of each other at startup, system voltage from 10-16v, AIR and Catalyst Tests not active, MAF input less than 40 g/sec, throttle angle under 20%, then the ECM detected that the H02S-12 signal remained from 300-700 mVolts for a calculated amount of time (depends on ECT and MAF inputs). P0141 H02S-12 Heater Circuit (Bank 1 Sensor 2) Fault: No CKP, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire Hor TP sensor codes set, system voltage from 9-16v, ECT and IAT inputs less than 95°F and within 11°F of each other at startup, average MAF input below 20 g/sec (below 19 g/sec on 1), then the ECM detected the H02S-12 signal remained within 150 mVolts of bias voltage for too long a period of time (from 50-80 seconds). P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.7L engine), ECT and IAT inputs less than 91°F and the difference between the ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-12 signal remained within 150 mVolts of the startup H02S-12 signal voltage, Fault: met for 245 seconds after a cold startup. P0141 H02S-12 Heater Circuit (Bank 1 Sensor 2) Fault: No H02S-12 codes set, difference between the ECT sensor input at last key off period and the current key on period indicates a cold startup occurred, system voltage from 10-18v, average MAF sensor input less than 30 g/sec, then the ECM detected that the H02S-12 signal remained within 150 mVolts of the bias voltage (approximately 450 mv) for a longer amount of time than expected. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351-P0358, P1258 not set, engine running, system voltage from 10-18v, ECT and IAT sensor inputs less than 122°F and within 14.5°F of each other at startup, AIR, EGR and Catalyst test inactive and the ECM detected the H02S-12 signal was fixed at 300-700 mVolts for too long. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Injector, IAT, MAP, Misfire or TP sensor codes set, system voltage from 8-18v, ECT and IAT sensor inputs less than 95°F and within 11°F of each other at startup, average MAF sensor for sample period less than 23 g/sec, then the ECM detected that the H02S-12 signal was within 150 mVolts of bias voltage (450 mv) during the test for too long of a time. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) No ECM codes set, both ECT/IAT under 122°F and ECT/IAT difference less than 5°F at startup, Airflow less than 30 g/sec, throttle angle less than 20%, then the ECM detected the Bank 1 H02S-12 signal remained from 300-700 mVolts for a specified time. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Engine runtime over 2 seconds, MAF input under 27 g/sec on 4.3L, 35 g/sec on 5.OU5.SL or 45 g/sec on 7.4L, system voltage 9-17v, ECT and IAT inputs less than 91-104°F and difference between the ECT and IAT inputs less than 9-14°F, then the ECM detected that the H02S-12 signal remained within 150 mVolts of the startup H02S-12 signal, condition met for 150 seconds after cold startup. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Engine running at over 3000 rpm for over 2 minutes, ECT input more than 176°F, then the ECM detected the H02S-12 heater circuit was below 2.5v with the heater off, or the circuit was more 0.31 v with the heater active, either condition met for 5 seconds. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Engine running, then the ECM detected that the current on the H02S-12 heater circuit exceeded 2 amps, or that the current was 0.2 amps or less. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) No CKP, ECT, EVAP, Fuel Trim, IAC, IAT, Injector, MAP, Misfire, ECM Memory, TP or VSS codes set, engine runtime under 400 seconds, airflow prior to activity less than 20 g/sec, ECT and IAT sensor inputs less than 113°F and the difference between the ECT and IAT inputs less than 13°F, system voltage from11.6-16v, then the ECM detected that the H02S-12 signal increased less than 148 mVolts within a predetermined time after a cold start. P0141 H02S-12 Heater Circuit (Bank I Sensor 2) Fault: 1995-97No ECM codes set, engine running, ECT and IAT sensor inputs both less than 212°F and the difference between the ECT and IAT inputs no more than 41°F, MAF input less than 27 g/sec, then the ECM detected an elapsed time to obtain ± 150 mVolts from H02S-12 bias voltage (450 mv) more than a calculated value. P0141 H02S-11 Heater Circuit (Bank I Sensor 2) Fault: No AIR, ECT, IAT, Injector, MAF, MAP or TP sensor codes set, Air pump off, system voltage from 9-18v, startup ECT and IAT sensor inputs less than 95°F and ECT and IAT inputs within 42°F of each other, engine runtime over 200 seconds, then the ECM detected that the H02S-12 signal remained within 150 mVolts of bias voltage (450 mv) for a longer time than normally required (the amount of time varies by engine temperature at startup and average airflow). P0141 H02S-'12 Heater Circuit (Bank I Sensor 2) Fault: No H02S-12 codes set, engine running, system voltage 11-15.5v, TWC temperature from 626-968°F, then the ECM determined that the H02S-12 heater resistance was out-of-range for 15 seconds. P0141 H02S-12 Heater Circuit (Bank 1 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351-P0358, P1120, P1220, P1221 and P1 258 not set, ECT and IAT inputs below 122°F and within 14.5°F of each other at startup, system voltage 10-18v, AIR and Catalyst Tests inactive and ECM detected the H02S-12 signal was fixed at 300-700 mVolts for too long (depends on ECT and MAF inputs). P0141 H02S-12 Heater Circuit (Bank 1 Sensor 2) Fault: Engine running, ECT and IAT sensor inputs at startup within 50°F of each other, Airflow less than 17 g/sec, then the ECM detected that the H02S-12 signal did not change more than 150 mVolts for 100 190 seconds (actual time depends on ECT input at startup). MULTIPLE INSTANCES OF THE SAME CODE: P0143 H02S-13 Circuit Low Input (Bank I Sensor 3) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Lean Enable Test: Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle at 3.5-99%, Fault: met for 5 seconds, then the ECM detected the H02S-13 signal was less than 26 mVolts for 110 seconds. Power Enrichment Lean Test Fuel system in closed loop, P/E mode active, Fuel Cutoff not active, elapsed time since the test started 1 second, then the ECM detected the H02S-13 signal was under 399 mVolts for 40 seconds. P0143 H02S-13 Circuit Low Input (Bank I Sensor 3) P0101 P0102 P0103 P0107 P0108 P0118 P0121 P0122 P0123 P0131-P0134 P0151-P0154 P0300, P1133, P1134, P1153 and P1154 not set, ECT input over 167°F, engine speed over 800 rpm, H02S-13 signal steady, throttle angle from 5-25%, system in closed loop, MAP input over 32 kPa, then the ECM detected the H02S-13 signal was below 0.49 mVolts for 2 minutes. P0143 H02S-13 Circuit Low Input (Bank I Sensor 3) Fault: No ECM codes set, throttle angle from 3-40%, closed loop A/F ratio from 14.5-14.8, then the ECM detected that the H02S-13 voltage remained below 75 mv, or with Power Enrichment Mode enabled, the voltage remained below 600 mVolts for 105 seconds. P0143 H02S-13 Circuit Low Input (Bank I Sensor 3) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v in closed loop, and with these tests enabled Lean Enable Test A/F ratio 14.5-14.8, throttle angle 3.5-99% for 5 seconds and the ECM detected the H02S-13 was under 26 mVolts for 110 seconds Power Enrichment Lean Test P/E mode active, Fuel Cutoff not active, elapsed time 1 second and ECM detected the H02S-13 was under 399 mVolts for 40 seconds P0143 HOS-13 Circuit Low Input (Bank 1 Sensor 3) Fault: P0101 P0102 P0103 P0107 P0108 P0117 P0118 P0121 P0122 P0123 P0131 P0132 P0133 P0134 P0151 P0152 P0153 P0154 P0300, P1133, P1134, P1153 and P1154 not set, ECT input 179°F or more, in closed loop, H02S ready for testing, engine speed over 800 rpm, MAP input over 32 kPa, throttle angle 5.4-25 degrees, these Fault: met for 3 seconds, then the ECM detected that the H02S-13 signal was lean (490 mVolts or less) for 100 out of 120 seconds. P0143 H02S-13 Circuit Low Input (Bank I Sensor 3) No ECT, EVAP, IAT, MAF, MAP, Misfire, TP codes set, Catalyst EGR Tests inactive, no device controls on and then during the Lean Enable Test A/F ratio 14.5-14.8 and throttle angle 3.5-99% for 5 seconds, then the ECM detected the H02S-13 was under 86 mVolts for 50 seconds. Power Enrichment Lean Test P/E mode active, Fuel Cutoff not active, elapsed time 1 second and ECM detected the H02S-13 was under 598 mVolts for 30 seconds MULTIPLE INSTANCES OF THE SAME CODE: P0144 H02S-13 Circuit High Input (Bank 1 Sensor 3) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP codes set, Catalyst and EGR Tests inactive, no device controls on and then during the Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-13 signal was more than 994 mVolts for 110 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, fuel system in closed loop, elapsed time since the test started over 2 seconds, then the ECM detected that the H02S-13 signal was more than 469 mVolts for 40 seconds. P0144 H02S-13 Circuit High Input (Bank I Sensor 3) Fault: No ECM codes set, ECT input from 167-179°F, engine speed over 800 rpm, MAP input over 32 kPa, throttle angle 5-25%, closed loop enabled and H02S-13 ready for 3 seconds and the ECM detected a H02S-13 signal of 534 mVolts or more for 100 out of 120 seconds. P0144 H02S-13 Circuit High Input (Bank I Sensor 3) Fault: P0101 P0102 P0103 P0107 P0108 P0117 P0118 P0121 P0122 P0123 P0131 P0132 P0133 P0134 P0151 P0152 P0153 P0154 P0300, P1133, P1134, P1153 and P1154 not set, ECT input 179°F or more, in closed loop, H02S ready for testing, engine speed over 800 rpm, MAP input over 32 kPa, throttle angle 5.4-25 degrees, these Fault: met for 3 seconds, then the ECM detected that the H02S-13 signal was rich (900 mVolts or less) for 100 out of 120 seconds. P0144 H02S-13 Circuit High Input (Bank I Sensor 3) No ECT, EVAP, IAT, MAF, MAP, Misfire, TP codes set, Catalyst and EGR Tests inactive, no device controls on and then during the Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-13 signal was more than 994 for 110 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, system in closed loop, elapsed time since the test started over 2 seconds, then the ECM detected that the H02S-13 signal was more than 469 mVolts for 40 seconds. P0144 H02S-13 Circuit High Input (Bank 1 Sensor 3) Fault: No ECM or TCM codes set, in closed loop, then the ECM detected the H02S-13 signal remained over 999 mv, or in Decel Fuel Mode, voltage remained over 200 mVolts for up to 105 seconds. P0144 H02S-13 Circuit High Input (Bank 1 Sensor 3) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP codes set, Catalyst, EGR and device controls inactive, system voltage 11-18v, then Rich Enable Test A/F ratio 14.5-14.8, throttle angle 0-50% for 5 seconds, then the ECM detected the H02S-13 exceeded 994 mVolts for 110 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff active, elapsed time of Test 2: seconds and the ECM detected the H02S-13 exceeded 468 mVolts for 40 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0146 H02S-13 Insufficient Activity (Bank 1 Sensor 3) No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0147 not active, EGR and Catalyst Tests inactive, device controls off, system voltage from 11.7-18v, in closed loop, ECT input over 137°F, MAF input is 13 g/sec or more, engine runtime over 120 seconds, engine speed from 1100-3000 rpm, Decel Fuel Cutoff not active, system in closed loop, then the ECM detected that the H02S-13 signal was from 399-473 mVolts for 100 seconds. P0146 H02S-13 Insufficient Activity (Bank 1 Sensor 3) Fault: No ECM codes set, ECT over 167°F, throttle angle from 2-81.6°, Calculated Throttle Position Switch open, engine speed over 800 rpm, then the ECM detected the H02S-13 input was steady between 307-609 mVolts for 250 out of 300 seconds. P0146 H02S-13 Insufficient Activity (Bank I Sensor 3) Fault: No ECM or TCM codes set, engine runtime over 4 minutes, then the ECM detected the H02S-13 signal remained from 425-475 mv, condition met for over 50 seconds. P0146 H02S-13 Insufficient Activity (Bank 1 Sensor 3) Fault: P0117 P0118 P0122 and P0123 not set, ECT sensor input over 167°F, throttle angle from 2-81.6°, Calculated Throttle Position Switch open, engine speed 800-3000 rpm, then the ECM detected the H02S-13 input remained between 307-609 mVolts for 250 out of 300 seconds (oxygen sensor was not toggling). P0146 H02S-13 Insufficient Activity (Bank 1 Sensor 3) Fault: No ECT, EVAP, IAT, MAF, MAP Misfire or TP sensor codes set, P0147 not active, Decel Fuel Cutoff, Catalyst and EGR Tests inactive, device controls off, engine runtime over 2 minutes, ECT input more than 137°F, MAF input 13 g/sec or more, system in closed loop, system voltage over 8v, and the ECM detected the H02S-13 signal remained from 399-473 mVolts for over 100 seconds. P0146 H02S-13 Insufficient Activity (Bank 1 Sensor 3) No ECT, EVAP, IAT, MAF, MAP, Misfire or TP codes set, Catalyst, EGR and device controls off, engine runtime 120 seconds, then H02S Temperature Test Decel Fuel Cutoff not active, ECT input more than 137°F, MAF sensor input more than 13 g/sec. H02S Open Test Enable 02 Sensor temperature test equal to true, P0147 not active, Fuel system in closed loop, then the ECM detected that the H02S signal was from 399-473 mv, Fault: met for over 110 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0147 H02S-13 Heater Circuit (Bank 1 Sensor 3) Fault: Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.7L engine), ECT and IAT inputs less than 91°F and the difference between the ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-13 signal remained within 150 mVolts of the startup H02S-13 signal voltage, Fault: met for 245 seconds after a cold startup. P0147 H02S-13 Heater Circuit (Bank 1 Sensor 3) Fault: No ECM codes set, ECT dropped at least 50°F from the end of last ignition cycle to current ignition cycle, engine did not stall during test, average rear H02S-13 bias from 352-546 mv, then the ECM detected the H02S-13 voltage required 100 ms to go 151 mVolts above or below the H02S-13 bias voltage. P0147 H02S-13 Heater Circuit (Bank 1 Sensor 3) Fault: No ECM or TCM codes set, ECT/IAT inputs both under 95°F and within 11°F of each other at startup, average MAF for sample period under 20 g/sec, then the ECM detected the H02S-13 signal remained within 1150 mVolts of the bias voltage for 30-90 seconds. P0147 H02S-13 Heater Circuit (Bank 1 Sensor 3) Fault: P0101 P0102 P0103 P0117 P0118 P0146 not set, then engine coolant temperature dropped at least 50°F from the end of the last ignition cycle to the beginning of this ignition cycle, engine did not stall during test, average rear H02S-13 bias voltage from 352-546 mv, then the ECM monitored the H02S-13 signal to determine when its voltage became either 151 mVolts less than or 151 mVolts more than average post-converter heated oxygen sensor bias voltage for 0.1 seconds. If it takes too long, P0147 will set. P0147 H02S-13 Heater Circuit (Bank I Sensor 3) Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.01-.8L), ECT and IAT inputs less than 91°F and the difference between the ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-13 signal remained within 150 mVolts of the startup H02S-13 signal voltage, Fault: met for 245 seconds after a cold startup. P0147 H02S-13 Heater Circuit (Bank 1 Sensor 3) Engine runtime over 2 seconds, system voltage from 11-18v, MAF input less than 27 g/sec, ECT and IAT sensor inputs less than 91°F and the difference between ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-13 signal remained within 150 mVolts of the startup H02S-13 signal voltage, Fault: met for 245 seconds after a cold startup. MULTIPLE INSTANCES OF THE SAME CODE: P0150 H02S-21 Circuit (Bank 2 Sensor 1) Closed Loop Performance No ECT, H02S, Injector, MAF, MAP or TP sensor codes set, ECT input over 167°F, engine runtime over 2 minutes, system voltage from 8-18v, engine speed from 500-5000 rpm, predicted H02S heater temperature over 1112°F, Decel Fuel Cutoff, Catalyst test, Power Enrichment and Traction Control inactive, MAF input from 3-30 g/sec, Fault: met for 5 seconds in closed loop (based on H02S-21 and H02S-22 signals switching from below 350 mVolts to above 500 mv), then the ECM monitored the H02S-21 signal for 2 minutes, and during that monitoring period, the H02S-21 signal was fixed at 350-500 mv, Fault: met for 16 seconds. P0150 H02S-21 Circuit (Bank 2 Sensor 1) Fault: P0155 P0159 P0160 and P0161 not set, engine at operating temperature, engine speed between 1400-2400 rpm, engine load at 8-12%, mass airflow from 18-22 g/sec, throttle angle at 6-10%, then the ECM detected that the H02S-21 signal was more than 4.78v, or the H02S-11 Lambda signal was between 0.9-1.0v for 4 seconds with the H02S-22 signal over 650 mVolts or less than 300 mv, or the H02S-21 Lambda signal was more than 1.2v with the H02S-22 signal over 650 mv, or the H02S-21 Lambda signal was under 0.8v with the H02S-22 signal under 300 mv. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0200 P0372 and P1371 not set, ECT input above 118°F, AIR and Catalyst Tests inactive, throttle angle 3-20%, in closed loop, A/F Ratio at 14.6-14.8, and the ECM detected the H02S-21 signal was below 200 mVolts for 30 seconds. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Lean Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 3.5-99%, Fault: met for 5 seconds, then the ECM detected the H02S-21 signal was less than 86 mVolts for 50 seconds. Power Enrichment Lean Test Fuel system in closed loop, P/E mode active, Fuel Cutoff not active, elapsed time since the test started 1 second, then the ECM detected the H02S-21 signal was under 598 mVolts for 30 seconds. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow tests inactive, system voltage from 8-18v, engine runtime over 200 seconds, A/F ratio 14.4-14.9, throttle angle at 3-25%, closed loop enabled, Fault: met for 3 seconds, then the ECM detected that the H02S-21 signal remained fixed below 75 mVolts for about 95 seconds in normal closed loop fuel control, or the H02S-21 signal remained below 575 mVolts for about 11 seconds during Power Enrichment fuel control. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351-P0358, P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, TP sensor angle at 2-70%, then the ECM detected that the H02S-21 signal was below 200 mVolts for 33 seconds. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, throttle angle from 5-40%, closed loop A/F ratio from 14.5-14.8, then the ECM detected that the H02S-21 signal remained below 175 mVolts in closed loop, or that the signal remained below 600 mVolts in power enrichment mode. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No ECM codes set, ECT over 118°F, throttle angle 3-20%, closed loop A/F ratio 14.6-14.81, Fuel Trim Learn on, then the ECM detected a H02S-21 signal of below 200 mVolts for 30 seconds. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0107 P0108 P0117 P0118 P0121 P0122 P0123 P0152 and P0154 not set, engine speed over 800 rpm, throttle angle from 5.4-25 degrees, in closed loop, ECT input more than 179°F, Fault: met for 3 seconds, H02S-21 ready for testing, MAP sensor input more than 32 kPa, P0131 runs and passes, then the ECM detected that the H02S-21 signal remained fixed below 356 mVolts for 40 seconds out of the 50 second test time. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, in closed loop, then the ECM detected Lean Enable Test A/F ratio 14.5-14.8, throttle angle 3.5-99%, Fault: met for 5 seconds, that the H02S-21 signal was less than 86 mVolts for 40 seconds (or 17 mVolts for 80 seconds on 7.4L V8). Power Enrichment Lean Test P/E mode active, Fuel Cutoff not active, elapsed time since the test started 10 seconds, the H02S-21 signal was under 598 mVolts for 30 seconds (or 399 mVolts for 10 seconds on 7.4L V8). P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Lean Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 3.5-99%, Fault: met for 5 seconds, then the ECM detected the H02S-21 signal was less than 86 mVolts for 50 seconds. Power Enrichment Lean Test Fuel system in closed loop, P/E mode active, Fuel Cutoff not active, elapsed time since the test started 1 second, then the ECM detected the H02S-21 signal was under 598 mVolts for 30 seconds. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: P0171 P0172 P0174 P0175 P0300-306 P0440 P0442 P0443 P0446 P0455 and P0460 not set, engine at operating temperature, engine speed between 1400-2400 rpm, engine load at 8-12%, mass airflow at 18-22 g/sec, throttle angle at 6-10%, the Secondary AIR test not activated, closed loop fuel control has not reached maximum or minimum, there is not an EVAP system high loading condition indicated, then the ECM determined that the H02S-21 sensor did not respond as expected. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: No ECM codes set, closed loop enabled, throttle angle from 2 20%, all Fault: met for 102 seconds, then the ECM detected the H02S-21 signal remained below 141 mv. P0151 H02S-21 Circuit Low Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-21 signal was below 200 mVolts for 31 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0200 P0372 and P1371 not set, system voltage 10-16v, AIR and Catalyst Tests inactive, in closed loop, A/F ratio 14.6-14.8, throttle angle 3-20%, then the ECM detected the H02S-21 signal was above 775 mVolts for 33 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow tests inactive, engine running in closed loop, A/F ratio from 14.4-14.9, system voltage from 8-18v, throttle position at 3-25%, all Fault: met for 3 seconds, then the ECM detected that the H02S-21 signal remained above 900 mVolts for 95 seconds in closed loop, or that the H02S-21 signal remained above 200 mVolts for 112 seconds during Decel Fuel Cutoff. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage from 11.7-18v, then with these tests enabled Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-21 signal was more than 976 mVolts for 40 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, fuel system in closed loop, elapsed time since the test started over 2 seconds, then the ECM detected that the H02S-21 signal was more than 468 mVolts for 30 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351-P0358, P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, TP sensor angle at 2-70%, then the ECM detected that the H02S-21 signal was over 775 mVolts for 33 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, throttle angle from 5-40%, closed loop A/F ratio from 14.5-14.8, then the ECM detected that the H02S-21 signal remained over 975 mVolts in closed loop, or that the signal remained below 200 mVolts in Decel Fuel Cutoff mode. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No engine codes set, throttle angle 3-20%, closed loop A/F ratio 14.6-14.8, Fuel Trim Learn on, then the ECM detected a H02S-11 signal that remained over 774 mVolts for 30 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, in closed loop, then the ECM detected Rich Enable Test A/F ratio 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, that the H02S-21 signal was more than 976 mVolts for 40 seconds (more than 950 mVolts for 40 seconds on 7.4L V8). Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, elapsed time since the test started more than 10 seconds, that the H02S-21 signal was more than 468 mv, condition met for 30 seconds (for 10 seconds on 7.4L V8). P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0107 P0108 P0117 P0118 P0121 P0122 P0123 P0152 and P0154 not set, throttle position from 5.4-25 degrees, ECT sensor input 179°F or higher, in closed loop, H02S-21 ready for testing, engine speed over 800 rpm, MAP input more than 32 kPa, Fault: met for 3 seconds, then the ECM detected that the H02S-21 signal had been rich (534 mVolts or more) for 40 seconds out of 50 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests not active, no device controls enabled, system voltage from 11.7-18v, then with these tests enabled Rich Enable Test Fuel system in closed loop, A/F ratio from 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, then the ECM detected that the H02S-21 signal was more than 976 mVolts for 40 seconds. Decel Fuel Cutoff Rich Test Enable Decel Fuel Cutoff mode active, system in closed loop, elapsed time since the start of test over 2 seconds, then the ECM detected that the H02S-21 signal was more than 468 mVolts for 30 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No H02S-21 codes set, engine speed from 1400-2400 rpm, engine at operating temperature, engine load at 8-12%, H02S-21 test completed, mass airflow 18-22 g/sec, throttle angle at 6-10%, then the ECM determined that the difference between the front and rear H02S signals was more than expected for 2 seconds. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: No ECM codes set, engine running in closed loop, throttle angle 2 20%, all Fault: met for 102 seconds, then the ECM detected the H02S-21 signal remained over 853 mv. P0152 H02S-21 Circuit High Input (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351-P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-11 signal was above 775 mVolts for 33 seconds. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0151 P0152 P0154 P0155 P0200 and P0372 not set, AIR and Catalyst Tests inactive, in closed loop, MAF input from 12-28 g/sec, engine speed 1000-1700 rpm, EVAP duty cycle below 100%, and ECM detected the average H02S-21 lean-rich or rich-lean response time was over 110 ms for 100 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, EGR and Catalyst Test inactive, device controls off, system voltage from 11.7-18v, in closed loop, ECT input over 135°F, MAF input from 15-55 g/sec, engine runtime over 75 seconds, engine speed from 1100-3000 rpm, EVAP purge enabled, Fault: met for 2 seconds, then with time since Closed Loop over 100 seconds, the ECM detected that the H02S-21 average lean to rich response time from below 300 mVolts to above 600 mVolts was more than 125 ms, or that the H02S-21 average rich to lean response time from above 600 mVolts to below 300 mVolts was more than 125 ms. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, Injector, MAF, MAP, Misfire or TP sensor codes set, DTC P1153 not set, AIR, Catalyst and EGR Flow test inactive, system voltage from 8-18v, engine runtime over 202 seconds, engine speed 1200-2300 rpm, closed loop enabled, throttle angle over 3%, ECT sensor input over 167°F, MAF input from 15-35 g/sec, Transmission not in Park, Reverse or Neutral, all Fault: met for 3 seconds, then the ECM detected that the H02S-21 lean to rich average transition time was longer than 100 ms, or that the H02S-21 rich to lean average transition response time was longer than 200 ms during the test. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351-P0358, P1258 not set, engine runtime over 2 minutes in closed loop, system voltage over 9v, AIR, EGR and Catalyst tests not active, ECT sensor input more than 122°F, engine speed 1000-2300 rpm, MAF sensor airflow 20-50 g/sec, EVAP purge duty cycle over 0%, then the ECM detected that the H02S-21 lean to rich response time (below 300 mVolts to over 600 mv) was over 250 ms, or that the H02S-21 rich-lean response time was over 250 ms for one minute. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, Misfire, MAP or TP sensor codes set, ECT input over 122°F, engine speed at 1000-3000 rpm, MAF input 10-30 g/sec, then the ECM detected that the H02S-21 L-R response time was longer than 63 ms, or that the H02S-21 R-L response time was longer than 190 ms. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: No ECM codes set, engine speed 1000-1700 rpm in closed loop, airflow from 12-28 g/sec, EVAP duty cycle under 100%, then the ECM detected that the H02S-21 UR average response time was over 50 ms, or that the R/L average response time was over 100 ms, either condition met for 100 seconds. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: P0117 P0118 P0121 P0122 P0123 P0155 and P1153 not set, this test has not completed this key cycle, low coolant level not present, system voltage 9-18v, then the ECM detected that the average H02S-11 lean-rich response time was over 150 ms, or the average rich-lean response time was over 150 ms. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0151 P0152 P0154 and P0155 not active, EGR and Catalyst Tests inactive, no device controls active, system voltage over 9v, system in closed loop, ECT input more than 135°F, MAF input from 15-55 g/sec, engine speed from 1100-3000 rpm, engine runtime over 75 seconds, EVAP purge enabled, Fault: met for 2 seconds, then with closed loop enabled for over 100 seconds, the ECM detected that the average H02S-21 lean to rich response time (from below 300 mVolts to above 600 mv) was more than 125 milliseconds, or that the average rich to lean response time (from above 600 mVolts to below 300 mv) was over 125 milliseconds. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, EGR and Catalyst Test inactive, device controls not enabled, system voltage from 11.7-18v, then with this test enabled Response Test Enabled P0131 P0132 P0134 P0135 not active, Fuel system in closed loop, ECT input more than 135°F, engine runtime over 75 seconds, MAF input at 15-55 g/sec, engine speed 1100-3000 rpm, EVAP Purge enabled, all Fault: met for over 2 seconds, then with closed loop mode enabled for 100 seconds, then the ECM detected the average Bank 2 lean-to-rich (below 300 mVolts to above 600 mv) or rich-to-lean response time was more than 125 ms. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) P0120 P0135 P0141 P0155 P0161 P0300 P0301-P0306 P0340 P0440-P0443 P0455, and P0560 not set, engine speed from 1000- rpm, engine load signal from 1.3-3.3 ms, calculated TWC temperature more than 666°F, at least 6 seconds have passed since EVAP Purge was enabled, closed loop enabled, then the ECM detected that the average response rate for the H02S-21 was more than 3.3 seconds. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: No ECM codes set, both ECT/IAT inputs below 122°F and within 11°F of each other at startup, throttle angle from 2-10%, closed loop enabled, then the ECM detected a H02S-21 L-R or R-L average response time over 100 ms. P0153 H02S-21 Slow Response (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P035 0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, ECT input more than 122°F and engine runtime over 120 seconds, engine speed at 1000-2300 rpm in closed loop, airflow from 20-50 g/sec, EVAP duty cycle over 0%, in closed loop, then the ECM detected that the H02S-21 lean rich average response time or that the rich-lean average response time was over 250 ms, condition met for more than one minute. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0200 P0372 and P1371 not set, engine runtime over 68 seconds, AIR and Catalyst Tests inactive, ECT sensor input more than 118°F, then the ECM detected the H02S-21 signal remained between 352-552 mVolts for 45 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0155 not active, EGR and Catalyst Tests inactive, device controls off, system voltage from 11.7-18v, in closed loop, ECT input over 137°F, MAF input is 13 g/sec or more, engine runtime over 120 seconds, engine speed from 1100-3000 rpm, Decel Fuel Cutoff not active, system in closed loop, then the ECM detected that the H02S-21 signal was from 300-600 mVolts for 80 seconds. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No AIR, Catalyst, ECT, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP or TP sensor codes set, AIR, Catalyst and EGR Flow test inactive, engine running, system voltage from 8-18v, then the ECM detected that the H02S-21 signal remained fixed within a range of 300-500 mVolts for approximately 80 seconds during the test period. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P035 0358, P1258 not set, engine runtime over 70 seconds in closed loop, AIR, EGR and Catalyst tests not active, system voltage over 9v, ECT sensor input more than 122°F, then the ECM detected that the H02S-21 signal was fixed from 300-550 mVolts for 60 seconds. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP codes set, engine runtime 4 minutes, then the ECM detected the H02S-21 signal remained at 400-500 mVolts in the test. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No ECM codes set, ECT input over 118°F, engine runtime over 68 seconds, closed loop enabled, then the ECM detected the H02S 21 signal was fixed from 352 to 552 mVolts for 45 seconds. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: P0117 P0118 P0122 P0123 not set, ECT sensor input over 163°F, throttle angle from 1-81.6°, Calculated Throttle Position Switch open, engine speed over 800 rpm, then the ECM detected the H02S-21 input remained between 307-609 mVolts for 50 out of 64 seconds (oxygen sensor was not toggling). P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P01 55 not active, Decel Fuel Cutoff not active, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, engine runtime over 2 minutes, system in closed loop, ECT input more than 140°F, MAF input 10 g/sec or more, then the ECM detected the H02S-21 signal was fixed from 300-600 mv, condition met for 80 seconds (over 40 seconds on 7.4L V8). P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, EGR and Catalyst Tests inactive, device controls off, P0155 not active, system voltage from 11.7-18v, engine runtime over 120 seconds, then with the following tests enabled while in closed loop H02S Temperature Test Decel Fuel Cutoff not active, ECT input more than 137°F, MAF sensor input more than 13 g/sec. H02S Open Test Enable 02 Sensor temperature test equal to true, then the ECM detected that the H02S-21 signal was at 300-600 mVolts for over 80 seconds. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: P01 30 P01 50 not set, engine at operating temperature, engine runtime over 25 seconds, engine speed from 1400-2400 rpm, engine load at 8-12%, mass airflow at 18-22 g/sec, throttle angle at 6-10%, then the ECM detected that the difference in the A/F signal from H02S-21 during a 10 ms time period was too long. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: No ECM codes set, closed loop enabled, throttle angle from 2 10%, then the ECM detected the H02S-21 signal remained steady from 356-497 mv, all Fault: met for 102 seconds. P0154 H02S-21 Insufficient Activity (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, system in closed loop, engine runtime over 70 seconds, then the ECM detected that the H02S-21 signal remained between 350-550 mv, condition met for 60 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0122 P0123 P0151 P0152 P0154 P0200 not set, ECT and IAT sensor inputs less than 122°F and within 5°F of each other at startup, system voltage from 10-16v, MAF input less than 40 g/sec, throttle position below 20%, then the ECM detected the H02S-21 voltage remained from 300-700 mVolts for a predetermined amount of time (length of time depends on ECT and MAF inputs at startup). P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.01-.8L), ECT and IAT inputs less than 91°F and the difference between ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-21 signal remained within 150 mVolts of the startup H02S-21 signal voltage, Fault: met for 130 seconds after a cold startup. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: No H02S-21 codes set, system voltage during the current measurement steady within one volt of Actual system voltage, engine speed from 500-3000 rpm, MAF input from 4-30 g/sec, H02S Over Temperature Control inactive, then the ECM detected that the H02S-21 heater current was outside of a calibrated range. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351P0358, P1258 not set, engine running with system voltage from 10-18v, ECT and IAT sensor inputs less than 122°F and within 14.5°F of each other at startup, AIR, EGR and Catalyst test not active, then the ECM detected that the H02S-21 signal remained fixed between 300 mVolts and 700 mv) for a predetermined amount of time (depends on ECT and Airflow signal). P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, system voltage 8-18v, ECT and IAT inputs less than 95°F and within 11°F of each other at startup, average MAF sensor less than 20 g/sec, then the ECM detected the H02S-21 signal remained within 150 mVolts of bias voltage during the test period (time varies between 42 seconds and 2 minutes). P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: No ECM codes set, both ECT/IAT under 122°F and under 5°F of each other at startup, engine running Airflow less than 40 g/sec, throttle angle under 20%, then the ECM detected the H02S-21 signal remained from 300-700 mVolts for a specified period of time. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0117 P0118 P0154 not set, engine coolant temperature dropped at least 50°F from the end of the last ignition cycle to the start of this ignition cycle, the average Bank 2 H02S-21 signal bias voltage between 352 mVolts and 546 mv, engine did not stall during test, then the ECM monitored the signal from the Bank 2 H02S-21 to determine when it became either 151 mVolts less than or 151 mVolts more than the average Bank 1 H02S-21 bias voltage for 100 milliseconds. If it takes too long, the ECM will set P0155. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: Engine runtime over 2 seconds, MAF input less than 27 g/sec on 4.3L V6 (less than 35 g/sec on 5.OL/5.SL V8 or 45 g/sec on 7.4L), system voltage 9-17v, ECT and IAT inputs less than 91-104°F and within 9-14°F of each other at startup, then the ECM detected the H02S-21 signal remained within 150 mVolts of the startup H02S-21 signal, condition met for 150 seconds after a cold engine startup. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec, ECT and IAT inputs less than 91°F and the difference between ECT and IAT inputs less than 9°F, then the ECM detected the H02S-21 signal remained within 150 mVolts of the startup H02S-21 signal for 130 seconds after a cold startup. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: Engine running, system voltage from 11-15.5v, H02S-21 heater on and the ECM detected the H02S-21 heater voltage was over 3.6v, or below 2.3v for 50 ms, or that the I/M Readiness Flag for the H02S monitor did not clear after 4 minutes from engine startup. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: No ECM codes set, ECT and IAT inputs less than 122°F and within 11°F of each other at startup, throttle angle under 16%, then the ECM detected the H02S-21 signal remained steady from 300-700 mVolts for over 200 seconds with an ECT input of below -40°F, or for over 48 seconds with an ECT input of more than 148°F. P0155 H02S-21 Heater Circuit (Bank 2 Sensor 1) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351P0358, P1120, P1220, P1221 and P1258 not set, ECT and IAT inputs less than 122°F and within 14.5°F of each other at startup, system voltage from 10-18v, AIR and Catalyst Tests inactive, then the ECM detected that the H02S 21 voltage remained from 300-700 mVolts for a predetermined amount of time (time depends on ECT and MAF inputs at startup). MULTIPLE INSTANCES OF THE SAME CODE: P0156 H02S-22 Circuit (Bank 2 Sensor 2) Fault: No AIR system or EVAP codes set, H02S-12 indicating closed loop, system voltage over 11v, AIR system not operating, AIR system test not running, engine runtime over 10 minutes, low fuel not indicated, TWC temperature less than 1472°F, then the ECM detected that the H02S-22 signal was less than 40 mv. P0157 H02S-22 Circuit Low Input (Bank 2 Sensor 2) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0151 P0200 P0372 and P1351 not set, ECT sensor input more than 118°F, AIR and Catalyst Tests not active, throttle angle 3-20%, system in closed loop, A/F ratio at 14.6-14.8, then the ECM detected that the H02S-22 signal was below 39 mVolts for 38 seconds. P0157 H02S-22 Circuit Low Input (Bank 2 Sensor 2) No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage 11.7-18v in closed loop, then with these tests enabled Lean Enable Test A/F ratio 14.5-14.8, throttle angle 3.5-99% for 5 seconds, then the ECM detected the H02S-22 was less than 26 mVolts for 110 seconds. Power Enrichment Lean Test P/E mode active, Fuel Cutoff inactive, elapsed time 1 second and the ECM detected the H02S-22 was under 399 mVolts for 40 seconds. P0157 H02S-22 Circuit Low Input (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351P0358, P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, Fuel Trim Lean enabled, TP sensor angle from 2 70%, then the ECM detected that the H02S-22 signal remained below 80 mVolts for one second, or with the P/E Mode enabled for one second, then the ECM detected that the H02S-22 signal remained below 420 mVolts with P/E Mode enabled for 10 seconds. P0157 H02S-22 Circuit Low Input (Bank 2 Sensor 2) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, in closed loop, then the ECM detected Lean Enable Test A/F ratio 14.5-14.8, throttle angle 3.5-99%, Fault: met for 5 seconds, that the H02S-22 signal was less than 86 mVolts for 40 seconds (or 17 mVolts for 80 seconds on 7.4L V8). Power Enrichment Lean Test P/E mode active, Fuel Cutoff not active, elapsed time since the test started 10 seconds, the H02S-22 signal was under 598 mVolts for 30 seconds (or 399 mVolts for 10 seconds on 7.4L V8). P0157 H02S-22 Circuit Low Input (Bank 2 Sensor 2) Fault: No ECM codes set, ECT input over 118°F, throttle angle 3-20%, closed loop A/F ratio 14.6-14.81, Fuel Trim Learn on, then the ECM detected the H02S-12 signal was under 39 mVolts (38 seconds). P0157 H02S-22 Circuit Low Input (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-22 signal was below 80 mVolts for 80 seconds, or with Power Enrichment mode enabled for over 1 second, that the H02S-22 signal was below 420 mVolts for 10 seconds in P/E mode. MULTIPLE INSTANCES OF THE SAME CODE: P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0200 P0372 and P1371 not set, AIR and Catalyst Tests inactive, throttle angle 3-20%, system in closed loop, A/F ratio from 14.6-14.8, then the ECM detected the H02S-22 signal was above 930 mVolts for 38 seconds. P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) No ECT, EVAP, IAT, MAF, MAP, Misfire, TP sensor codes set, Catalyst and EGR Tests inactive, device controls not on, system voltage 11-18v, in closed loop, then with these tests enabled Rich Enable Test A/F ratio 14.5-14.8, throttle angle 0-50% for 5 seconds, then the ECM detected the H02S-22 was over 994 mVolts for 110 seconds. Decel Fuel Cutoff Rich Test Enable FCO active, elapsed time since test started 2 seconds, the ECM detected the H02S-22 signal was over 469 mVolts for 40 seconds. P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: No ECM codes set, throttle angle 3-20%, closed loop A/F ratio 14.6-14.81, Fuel Trim Learn on, then the ECM detected the H02S-22 signal remained over 930 mVolts for 38 seconds. P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351P0358, P1258 not set, AIR, EGR and Catalyst tests not active, system voltage over 9v, Fuel Trim Lean enabled, TP sensor angle 2-70%, then the ECM detected that the H02S-22 signal was over 930 mVolts for 40 seconds, or with the DFCO mode enabled for 3 seconds, that the H02S-22 signal was over 480 mVolts for 5 seconds. P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: Engine running, system voltage over 11v, catalytic converter temperature less than 1472°F, then the ECM detected that the H02S-22 signal was more than 1080 mVolts for over 5.1 seconds. P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, Catalyst and EGR Tests inactive, no device controls active, system voltage over 9v, in closed loop, then the ECM detected Rich Enable Test A/F ratio 14.5-14.8, throttle angle from 0-50%, Fault: met for 5 seconds, the H02S-22 signal was more than 976 mVolts for 40 seconds (more than 976 mVolts for 80 seconds on 7.4L V8). Decel Fuel Cutoff Rich Test Enable FCO mode active, elapsed time since test started 10 seconds, the H02S-22 signal was over 468 mVolts for 30 seconds (10 on 7.4L). P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: No H02S codes set, throttle angle 2-20%, engine runtime 102 seconds in closed loop, then the ECM detected that the H02S-22 signal was more than 924 mv. P0158 H02S-22 Circuit High Input (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351P0358, P1120, P1220, P1221 and P1258 not set, system voltage over 9v, AIR and Catalyst Tests not active, throttle angle 2-70%, system in closed loop, then the ECM detected the H02S-22 signal was above 930 mVolts for 40 seconds, or with Decel Fuel Cutoff mode on for 3 seconds, the H02S-22 signal remained above 480 mVolts for 5 seconds during DFCO mode. MULTIPLE INSTANCES OF THE SAME CODE: P0159 H02S-22 Slow Response (Bank 2 Sensor 2) Fault: Engine running, H02S-22 in closed loop operation, system voltage over 11v, then the ECM detected that the H02S-22 signal was fixed at over 600 mVolts or stuck at less than 600 mv, or that the H02S-22 signal was more than 200 mVolts during Decel Fuel Cutoff. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0141 P0200 P0372 and P1371 not set, AIR and Catalyst Tests inactive, ECT input above 122°F, engine runtime over 68 seconds, then the ECM detected the H02S-22 signal remained between 391-491 mVolts for 2.5 minutes. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: No ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set P0155 not active, EGR and Catalyst Tests inactive, device controls off, system voltage from 11.7-18v, in closed loop, ECT input over 137°F, MAF input is 13 g/sec or more, engine runtime over 120 seconds, engine speed from 1100-3000 rpm, Decel Fuel Cutoff not active, system in closed loop, then the ECM detected that the H02S-22 signal was from 399-473 mVolts for 100 seconds. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351P0358, P1258 not set, system voltage over 9v, engine runtime over 70 seconds in closed loop mode, AIR, EGR and Catalyst tests not active, then the ECM detected that the H02S-22 signal was fixed between 409 mVolts and 489 mVolts for 2.5 minutes during the test period. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: No ECM codes set, ECT over 118°F, engine runtime over 68 seconds, closed loop enabled, then the ECM detected the H02S 22 signal remained steady at 391-491 mVolts for 2.5 minutes. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: No AIR, ECT, EVAP, IAT, MAF, MAP, Misfire or TP sensor codes set, P0151 P0152 P0154 P0155 not active, EGR and Catalyst Tests inactive, no device controls active, system voltage over 9v, system in closed loop, ECT input more than 135°F, MAF input from 15-55 g/sec, engine speed from 1100-3000 rpm, engine runtime over 75 seconds, EVAP purge enabled, Fault: met for 2 seconds, then with closed loop enabled for over 100 seconds, then the ECM detected that the average H02S-22 lean to rich and rich to lean response time (from above 600 mVolts to below 300 mv) was more than 125 milliseconds. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: Engine running, system voltage over 11v, catalytic converter temperature less than 1472°F, then the ECM detected that the H02S-22 signal was fixed from 401-519 mVolts for over 60 seconds. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: No ECM codes set, closed loop enabled, throttle angle 2-10%, then the ECM detected the H02S-22 signal remained steady from 356-497 mv, condition met for 102 seconds. P0160 H02S-22 Insufficient Activity (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351P0358, P1120, P1220, P1221 and P1258 not set, AIR and Catalyst Tests not active, system in closed loop, engine runtime over 70 seconds, then the ECM detected the H02S-22 signal remained between 409-489 mVolts for 2.5 minutes. MULTIPLE INSTANCES OF THE SAME CODE: P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: P0100 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0122 P0123 P0157 P0158 P0160 P0200 not set, ECT and IAT sensor inputs less than 122°F and within 5°F of each other at startup, system voltage 10-16v, AIR and Catalyst Tests inactive, MAF input above 40 g/sec, throttle angle below 20%, then the ECM detected the H02S-22 voltage remained from 300-700 mVolts for a calculated amount of time (depends on ECT and MAF inputs). P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: Engine runtime over 2 seconds, system voltage from 11.7-18v, MAF input less than 27 g/sec (less than 35 g/sec on 5.7L engine), ECT and IAT inputs less than 91°F and the difference between ECT and IAT inputs less than 9°F, then the ECM detected that the H02S-22 signal remained within 150 mVolts of the startup H02S-22 signal voltage, Fault: met for 130 seconds after a cold startup. P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0335 P0336 P0351P0358, P1258 not set, engine running with system voltage from 10-18v, ECT and IAT sensor inputs less than 122°F and within 14.5°F of each other at engine startup, AIR, EGR and Catalyst test inactive, then the ECM detected that the H02S-22 signal remained fixed between 300-700 mVolts for a predetermined time (depends on ECT and MAF signals at engine startup). P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: No ECM codes set, both ECT/IAT under 122°F and under 5°F of each other at startup, engine running, Airflow less than 40 g/sec, throttle angle under 20%, then the ECM detected the H02S-22 signal remained from 300-700 mVolts for a certain period of time. P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: Engine runtime over 2 seconds, MAF input under 27 g/sec on 4.3L, 35 g/sec on 5.OU5.8L or 45 g/sec on 7.4L, system voltage 9-17v, ECT and IAT inputs less than 91-104°F and difference between the ECT and IAT inputs less than 9-14°F, then the ECM detected that the H02S-22 signal remained within 150 mVolts of the startup H02S-22 signal, condition met for 150 seconds after cold startup. P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: No H02S-22 codes set, engine running, system voltage at 11 15.5v, catalytic converter temperature between 626°F and 968°F, then the ECM calculated that the H02S-22 heater resistance was out-of-range for at least 15 seconds. P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: No ECM codes set, both ECT/IAT inputs below 122°F and within 11°F of each other at startup, throttle angle under 16%, then ECM detected the H02S-22 signal remained fixed from 300-700 mVolts for over 200 seconds with an ECT input at -40°F, or for over 48 seconds with an ECT input over 154°F. P0161 H02S-22 Heater Circuit (Bank 2 Sensor 2) Fault: P0101 P0102 P0103 P0112 P0113 P0117 P0118 P0125 P0200 P0335 P0336 P0351P0358, P1120, P1220, P1221 and P1258 not set, startup ECT and IAT sensor inputs less than 122°F and within 14.5°F of each other at engine startup, system voltage from 10-18v, AIR and Catalyst Tests not active, then the ECM detected that the H02S-22 voltage remained from 300-700 mVolts for a calculated amount of time (depends on ECT and MAF inputs). P0169 Incorrect Fuel Composition Sensor Circuit Fault: Engine running, ECT and IAT sensor inputs less than 8°F at startup, then the ECM monitored the Fuel Composition sensor frequency during the first 30 seconds of runtime and detected that the fuel composition was above the given threshold for the ambient temperature, condition met for 25 seconds of 30 second interval. MULTIPLE INSTANCES OF THE SAME CODE: P0171 Fuel System Lean (Bank 1) Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0131 P0132 P0133 P0134 P0201 P0202 P0203 P0204 P0300 P0325 P0335 P0341 P0342 P0446 P0502 P0503 P0506 P0507 P0601 P0602, P1133 and P1441 not set, IAT sensor input from -13°F to 175°F, ECT sensor input from 140°F to 239°F, engine speed from 550-3400 rpm, VSS input below 72 mph, MAP input more than 26 kPa, BAROMETRIC input more than 72 kPa, EVAP Purge not active, then the ECM detected that the Fuel Trim index was more than 165 (32%) for over 4 seconds. P0171 Fuel System Lean (Bank 1) Fault: No CKP, CMP, ECT, EGR, EVAP, H02S, IAT, IC, Injector, MAF, MAP, TP or VSS codes set, ECT input from 68-230°F, IAT input from 0-158°F, MAP input at 15-85 kPa, BAROMETRIC input over 70 kPa, engine speed 600-4000 rpm, throttle angle steady and under 90%, VSS input under 82 mph, MAF input from 3-150 g/sec, then the ECM detected that the Bank 1 LONGFT value was more than 20%, or the SHRTFT value was more than 3% (Fault: met in Fuel Trim Cells 0 - Purge on and Cell 2 - Purge Off on X). P0171 Fuel Trim System Lean (Bank 1) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0131 P0132 P0134 P0135 P0141 P0152 P0154 P0155 P0200 P0300 P0372 P0441 P0443 P0500 P0601, P1133, P1151, P1351, P1361, P1371, P1414, P1416 and P1441 not set, ECT input from 120-239°F, BAROMETRIC input over 70 kPa, IAT input from -22°F to 194°F, MAP input from 26-90 kPa, MAF input from 5-100 g/sec, engine speed 500-4000 rpm, throttle angle under 90%, VSS input under 75 mph, in closed loop, fuel trim enabled, EVAP duty cycle above 75%, then the ECM detected that the average Bank 1 LONGFT cell values were above a predetermined range, condition met for 10 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECM codes set, ECT input from 176-230°F, engine speed 1000-4000 rpm (0-4000 rpm on 1), throttle angle steady below 91 %, VSS under 70 mph, purge duty cycle below 80%, then the ECM detected that the LONGFT was over 100, or that the SHRTFT was below 94, either condition met for over 25 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No CKP, CMP, ECT, EGR, EST, EVAP, IAT, Injector, MAF, MAP, Misfire, TP or VSS codes set, ECT input from 68-230°F, IAT from 0-158°F, BARO input more than 70 kPa, MAP input at 15-85 kPa, throttle angle less than 90%, VSS under 82 mph, MAF input from 3-150 g/sec, engine speed 600-5000 rpm, then the ECM detected that the Bank 1 LONGFT was at or near the maximum authority of +20% and SHRTFT was at or near maximum authority of +20%, all of these Fault: were met in the appropriate Fuel Trim Cells. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BARO input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 1 SHRTFT values for 120 seconds indicated that a lean condition existed. P0171 Fuel Trim System Lean (Bank 1) Fault: No AIR, CMP, EGR Control or Flow, EVAP, H02S, Idle Speed, Injector, Knock Sensor, MAF, MAP, Misfire or TP sensor codes set, EGR Flow Test inactive, closed loop enabled, BAROMETRIC input more than 75 kPa, ECT input from 68-239°F, IAT sensor input from -4°F to 212°F, engine speed from 500-4000 rpm, MAF input from 3-60 g/sec, MAP input from 15-85 kPa, throttle angle less than 65%, VSS input less than 82 mph, then the ECM detected it was not able to correct for a lean condition in Bank 1 during the test. P0171 Fuel Trim System Lean (Bank 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0405 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1258, P1404, P1415, P1416 not set, ECT sensor input from 122°F-239°F, IAT sensor input from -4°F-194°F, BARO sensor over 74 kPa, engine speed at 400-3000 rpm, throttle angle steady and less than 90%, MAP sensor input at 26-90 kPa, VSS under 85 mph, MAF sensor airflow from 3-150 g/sec, fuel level more than 10%, and the ECM detected the average LONGFT cell values were above a calculated threshold for over six seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No CKP, CMP, ECT, EGR, EST, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire, 02S, TP sensor or VSS codes set, ECT sensor input from 68°F-230°F, IAT sensor input from 0°F-158°F, BARO sensor over 70 kPa, engine speed at 600-4000 rpm, throttle angle steady and less than 90%, MAP sensor input at 15-85 kPa, VSS under 82 mph, MAF sensor airflow from 3-150 g/sec, then the ECM detected that the LONGFT was more than +17% and the SHRTFT was more than +2% of the indicated cells in the fuel trim table, and that the Fault: were met in the cells for one second. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECM codes set, ECT at 120-239°F, in closed loop, BAROMETRIC over 70 kPa, IAT at -22° to 302°F, MAP from 20-90 kPa, MAF from 5 100 g/sec, engine speed 500-4000 rpm, throttle angle under 75%, VSS under 75 mph, Fuel Trim enabled, EVAP Purge off or EVAP duty cycle over 75%, then the ECM detected the average LONGFT values were too high, Fault: met for 10 seconds. P0171 (11T)Fuel Trim System Lean (Bank 1) Fault: P0101 P0102 P0103 P0106 P0107 P0108 P0121 P0122 P0131 P0132 P0133 P0134 P0137 P0138 P0140 P0143 P0144 P0146 P0151 P0154 P0562 P0163 P0201 P0202 P0203 P0204 P0205 P0206 P0207 P0208 P0300 P0325 P0327 P0340 P0401 P0506 P0507, P1121, P1133, P1153, P1154, P1441, P1508 and P1509 not set, in closed loop, BAROMETRIC input over 70.8 kPa, ECT input from 184-221°F, IAT sensor input from 40°F to 218°F, engine speed from 400-3000 rpm, MAF input from 3-200 g/sec, MAP input from 27-103 kPa, throttle angle less than 19.8%, EVAP purge tank not full (ECM estimation), Fuel Trim enabled, VSS input less than 70 mph, then the ECM detected that the average fuel trim cell values were greater than 1.125 for short term fuel trim and 0.992 for long term fuel trim for 2.5 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46-169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 1 SHRTFT values for 120 seconds indicated a lean condition was present. P0171 Fuel Trim System Lean (Bank 1) Fault: Engine running at steady speed in closed loop, IAT sensor input from 14-158°F, BAROMETRIC sensor input over 75 kPa, fuel tank level over 25% and the ECM detected the LONGFT value was over 30% for 5 seconds, or the SHRTFT value was over 20% for 45 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECM codes set, ECT input from 176-230°F, engine speed 1000-4000 rpm (0-4000 rpm on 1), throttle angle steady below 91 %, VSS under 70 mph, purge duty cycle below 80%, then the ECM detected that the LONGFT was over 100, or that the SHRTFT was below 94, either condition met for over 25 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No CKP, CMP, ECT, EGR, EST, EVAP, IAT, Injector, MAF, MAP, Misfire, TP or VSS codes set, ECT input from 68-230°F, IAT from 0-158°F, BARO input more than 70 kPa, MAP input at 15-85 kPa, throttle angle less than 90%, VSS under 82 mph, MAF input from 3-150 g/sec, engine speed 600-5000 rpm, then the ECM detected that the Bank 1 LONGFT was at or near the maximum authority of +20% and SHRTFT was at or near maximum authority of +20%, all of these Fault: were met in the appropriate Fuel Trim Cells. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BARO input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 1 SHRTFT values for 120 seconds indicated that a lean condition existed. P0171 Fuel Trim System Lean (Bank 1) Fault: No AIR, CMP, EGR Control or Flow, EVAP, H02S, Idle Speed, Injector, Knock Sensor, MAF, MAP, Misfire or TP sensor codes set, EGR Flow Test inactive, closed loop enabled, BAROMETRIC input more than 75 kPa, ECT input from 68-239°F, IAT sensor input from -4°F to 212°F, engine speed from 500-4000 rpm, MAF input from 3-60 g/sec, MAP input from 15-85 kPa, throttle angle less than 65%, VSS input less than 82 mph, then the ECM detected it was not able to correct for a lean condition in Bank 1 during the test. P0171 Fuel Trim System Lean (Bank 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0405 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1258, P1404, P1415, P1416 not set, ECT sensor input from 122°F-239°F, IAT sensor input from -4°F-194°F, BAROMETRIC sensor over 74 kPa, engine speed at 400-3000 rpm, throttle angle steady and less than 90%, MAP sensor input at 26-90 kPa, VSS under 85 mph, MAF sensor airflow from 3-150 g/sec, fuel level more than 10%, and the ECM detected the average LONGFT cell values were above a calculated threshold for over six seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No CKP, CMP, ECT, EGR, EST, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire, 02S, TP sensor or VSS codes set, ECT sensor input from 68°F-230°F, IAT sensor input from 0°F-158°F, BARO sensor over 70 kPa, engine speed at 600-4000 rpm, throttle angle steady and less than 90%, MAP sensor input at 15-85 kPa, VSS under 82 mph, MAF sensor airflow from 3-150 g/sec, then the ECM detected that the LONGFT was more than +17% and the SHRTFT was more than +2% of the indicated cells in the fuel trim table, and that the Fault: were met in the cells for one second. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECM codes set, ECT at 120-239°F, in closed loop, BAROMETRIC over 70 kPa, IAT at -22° to 302°F, MAP from 20-90 kPa, MAF from 5 100 g/sec, engine speed 500-4000 rpm, throttle angle under 75%, VSS under 75 mph, Fuel Trim enabled, EVAP Purge off or EVAP duty cycle over 75%, then the ECM detected the average LONGFT values were too high, Fault: met for 10 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: P0101 P0102 P0103 P0106 P0107 P0108 P0121 P0122 P0131 P0132 P0133 P0134 P0137 P0138 P0140 P0143 P0144 P0146 P0151 P0154 P0562 P0163 P0201 P0202 P0203 P0204 P0205 P0206 P0207 P0208 P0300 P0325 P0327 P0340 P0401 P0506 P0507, P1121, P1133, P1153, P1154, P1441, P1508 and P1509 not set, in closed loop, BAROMETRIC input over 70.8 kPa, ECT input from 184-221°F, IAT sensor input from 40°F to 218°F, engine speed from 400-3000 rpm, MAF input from 3-200 g/sec, MAP input from 27-103 kPa, throttle angle less than 19.8%, EVAP purge tank not full (ECM estimation), Fuel Trim enabled, VSS input less than 70 mph, then the ECM detected that the average fuel trim cell values were greater than 1.125 for short term fuel trim and 0.992 for long term fuel trim for 2.5 seconds. P0171 Fuel Trim System Lean (Bank 1) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46-169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 1 SHRTFT values for 120 seconds indicated a lean condition was present. P0171 Fuel Trim System Lean (Bank 1) Fault: Engine running at steady speed in closed loop, IAT sensor input from 14-158°F, BAROMETRIC sensor input over 75 kPa, fuel tank level over 25% and the ECM detected the LONGFT value was over 30% for 5 seconds, or the SHRTFT value was over 20% for 45 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0172 Fuel Trim System Rich (Bank 1) Fault: Engine running at steady speed in closed loop, ECT sensor input more than 158°F, then the ECM detected that the Fuel Trim was constantly low during stable engine running Fault:. P0172 Fuel Trim System Rich (Bank 1) Fault: No ECT, EGR, EVAP, H02S, ]AT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 1 SHRTFT values for 120 seconds indicated that a rich condition existed. P0172 Fuel Trim System Rich (Bank 1) Fault: No CAM, CKP, ECT, EGR, EVAP, IC, IAC, H02S, IAT, Injector, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle angle under 90% and steady, engine speed 600-4000 rpm, BAROMETRIC input over 70 kPa, MAP input at 18-80 kPa, ECT input 68 230°F, IAT input at 0-158°F, MAF input at 3-150 g/sec, VSS input under 82 mph, then the ECM detected the LONGFT value was at or near -19% or the SHRTFT value was at or near +1 % in all cells. P0172 Fuel Trim System Rich (Bank 1) Fault: No CKP, CMP, ECT, IAC, IAT, H02S, Injector, Misfire, Knock Sensor, ECM Memory, TP or VSS codes set, IAT input from -13°F to 175°F, ECT input from 140°F to 239°F, engine speed 850-3400 rpm, MAP input more than 26 kPa, BAROMETRIC input over 72 kPa, fuel level over 10%, VSS input below 82 mph, then the ECM detected that the fuel trim index was below -40% for over 16 seconds. P0172 Fuel Trim System Rich (Bank 1) Fault: Engine running in closed loop, Fuel Trim enabled, then the ECM detected that the average long term fuel trim (LONGFT) values were less than a predetermined level. Note If the last failure was during non-typical driving, the MIL may stay on more than 3 trips. P0172 Fuel Trim System Rich (Bank 1) Fault: No ECM codes set, ECT from 140-239°F, IAT from -22 to 140°F, in closed loop with fuel trim on, BAROMETRIC over 70 kPa, engine speed 500-4000 rpm, throttle angle less than 70%, MAP input from 20-90 kPa, MAF from 5-100 g/sec, VSS input under 75 mph, EVAP duty cycle under 75%, then the ECM detected that the LONGFT value was over 112, or that the SHRTFT was at 118 for over 10 seconds. P0172 Fuel Trim System Rich (Bank 1) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1120, P1220, P1221, P1258, P1415 and P1416 not set, ECT input from 122-239°F, BARO input over 74 kPa (10.7 psi), IAT input from -4°F to 194°F, MAP input at 26-90 kPa, MAF input at 5-90 g/sec, engine speed 500-3000 rpm, throttle angle under 90%, VSS input under 85 mph, Fuel Trim enabled, fuel level over 10% and ECM detected the average LONGFT cells were below a calculated ed threshold. P0172 Fuel Trim System Rich (Bank 1) Fault: No ECT, EVAP, EVAP Purge, H02S, IAT, MAP, Misfire, TP or VSS codes set, P0125 not set, ECM using non-purge long VIN 7 8 8term Fuel Trim cells, in closed loop, ECT input from 140-239°F, IAT input from -22 to 176°F, Airflow from 2-80 g/sec, MAP input at 20-90 kPa, BARO input over 70 kPa, engine speed 500-4000 rpm, throttle angle under 75% open, VSS input under 75 mph, then the ECM detected the average idle and cruise LONGFT cells were 101 and the current SHRTFT cells were below 128 for 3 seconds. P0174 Fuel Trim System Lean (Bank 2) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0131 P0132 P0134 P0135 P0141, P0152 P0154 P0155 P0200 P0300 P0372 P0441 P0443 P0500 P0601, P1133, P1151, P1351, P1361, P1371, P1414, P1416 and P1441 not set, ECT input from 120-239°F, BARO input over 70 kPa, IAT input from -22°F to 194°F, MAP input from 26-90 kPa, MAF input from 5-100 g/sec, engine speed 500-4000 rpm, throttle angle under 90%, VSS input under 75 mph, in closed loop, fuel trim enabled, EVAP duty cycle above 75%, then the ECM detected that the average Bank 2 LONGFT cell values were above a predetermined range, condition met for 10 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0174 Fuel Trim System Lean (Bank 2) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 2 SHRTFT values for 120 seconds indicated that a lean condition existed. P0174 Fuel Trim System Lean (Bank 2) Fault: No AIR, CMP, EGR, EVAP, H02S, IAC, Injector, Knock Sensor, MAF, MAP, Misfire or TP sensor codes set, EGR Test inactive, closed loop enabled, BARO input over 75 kPa, ECT input from 68 239°F. IAT input from -4°F to 212°F, engine speed 500-4000 rpm, MAF input from 3-60 g/sec, MAP input from 15-85 kPa, throttle angle under 65%, VSS input under 82 mph, and the ECM detected it could not correct for a lean condition in Bank 1 during the test. P0174 Fuel Trim System Lean (Bank 2) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0405 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1258, P1404, P1415, P1416 not set, ECT input at 122°F-239°F, IAT input at -4°F-194°F, BAROMETRIC input over 74 kPa, engine speed 400-3000 rpm, throttle angle below 90%, MAP input at 26-90 kPa, VSS under 85 mph, MAF input at 5-90 g/sec, fuel level over 10%, then the ECM detected the average LONGFT cell values were above a specified threshold for at least 6 seconds. P0174 Fuel Trim System Lean (Bank 2) Fault: No ECM codes set, ECT at 120-239°F, in closed loop, BAROMETRIC input over 70 kPa, IAT at -22° to 302°F, MAP from 20-90 kPa, MAF from 5-100 g/sec, engine speed 500-4000 rpm, throttle angle under 75%, VSS under 75 mph, Fuel Trim enabled, EVAP Purge off or EVAP duty cycle over 75%, then the ECM detected the average LONGFT values were over a calibrated amount for 10 seconds. P0174 Fuel Trim System Lean (Bank 2) Fault: No CKP, CMP, ECT, EGR, EST, EVAP, Fuel Trim, Injector, IAT, MAP, Misfire, H02S, TP or VSS codes set, ECT input 68°F-230°F, IAT input at 0°F-158°F, BAROMETRIC input over 70 kPa, engine speed at 600-4000 rpm, throttle angle below 90%, MAP input at 15-85 kPa, VSS input under 82 mph, MAF input at 3-150 g/sec, and the ECM detected that LONGFT exceeded +17% and SHRTFT exceeded +2% of the value in the fuel trim tables, condition met for 1 second. P0174 Fuel Trim System Lean (Bank 2) Fault: P0101 P01 02 P0103 P0106 P0107 P0108 P0121 P0122 P0131 P0132 P0133 P0134 P0137 P0138 P0140 P0143 P0144 P0146 P0151 P0154 P0562 P0163 P0201 P0202 P0203 P0204 P0205 P0206 P0207 P0208 P0300 P0325 P0327 P0340 P0401 P0506 P0507, P1121, P1133, P1153, P1154, P1441, P1508 and P1509 not set, in closed loop, BAROMETRIC input over 70.8 kPa, ECT input from 184-221°F, IAT sensor input from 40°F to 218°F, engine speed from 400-3000 rpm, MAF input from 3-200 g/sec, MAP input from 27-103 kPa, throttle angle less than 19.8%, EVAP purge tank not full (ECM estimation), Fuel Trim enabled, VSS input less than 70 mph, then the ECM detected that the average fuel trim cell values were greater than 1.125 for short term fuel trim and 0.992 for long term fuel trim for 2.5 seconds. P0174 Fuel Trim System Lean (Bank 2) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TIP and VSS codes set, throttle angle below 70%, engine speed 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input 22-85 kPa, ECT input at 167-237°F, IAT input at 46-169°F, MAF input at W3-85 g/sec, VSS input under 85 mph, then the ECM detected the average SHRTFT values for 2 minutes indicated a lean condition. P0174 Fuel Trim System Lean (Bank 2) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 2 SHRTFT values for 120 seconds indicated that a lean condition existed. P0174 Fuel Trim System Lean (Bank 2) Fault: Engine running in closed loop, Fuel Trim enabled, then the ECM detected that the fuel trim long term values were greater than 23% and that the short term fuel trim values were greater than 25%. P0174 Fuel Trim System Lean (Bank 2) Fault: No ECM codes set, ECT from 140-239°F, IAT from -22 to 140°F, Fuel Trim and closed loop enabled, BAROMETRIC over 70 kPa, engine speed 500-4000 rpm, throttle angle less than 70%, MAP input from 20-90 kPa, MAF from 5-100 g/sec, VSS under 75 mph, EVAP duty cycle under 75%, then the ECM detected that the LONGFT was over 155, or that the SHRTFT was at 138 for 10 seconds. P0174 Fuel Trim System Lean (Bank 2) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1120, P1220, P1221, P1258, P1415 and P1416 not set, ECT input from 122-239°F, BAROMETRIC input over 74 kPa (10.7 psi), IAT input from -4°F to 194°F, MAP input from 26-90 kPa, MAF input from 5-90 g/sec, engine speed 500-3000 rpm, throttle angle under 90%, VSS input under 85 mph, Fuel Trim enabled, fuel level over 10%, then ECM detected the average LONGFT values were over a preset amount. MULTIPLE INSTANCES OF THE SAME CODE: P0175 Fuel Trim System Rich (Bank 2) Fault: P0100 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0131 P0132 P0134 P0135 P0141 P0152 P0154 P0155 P0200 P0300 P0372 P0441 P0443 P0500 P0601, P1133, P1151, P1351, P1361, P1371, P1414, VIN 5 &PP1416 and P1441 not set, ECT input from 120-239°F, BAROMETRIC input over 70 kPa, IAT input from -22°F to 194°F, MAP input from 26-90 kPa, MAF input from 5-100 g/sec, engine speed 500-4000 rpm, throttle angle under 90%, VSS input under 75 mph, in closed loop, fuel trim enabled, EVAP duty cycle above 75%, then the ECM detected that the average Bank 2 LONGFT cell values were below a predetermined range, condition met for 10 seconds. P0175 Fuel Trim System Rich (Bank 2) Fault: No ECM codes set, ECT input at 176-230°F, engine speed 1000 4000 rpm, throttle angle steady and less than 91 %, VSS under 70 mph, Purge duty cycle below 80% and ECM detected LONGFT was over 100, or SHRTFT below 94, condition met for 25 seconds. P0175 Fuel Trim System Rich (Bank 2) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 2 SHRTFT values for 120 seconds indicated that a rich condition existed. P0175 Fuel Trim System Lean (Bank 2) Fault: No AIR, CMP, EGR Control or Flow, EVAP, H02S, Idle Speed, Injector, Knock Sensor, MAF, MAP, Misfire or TP sensor codes set, EGR Flow Test inactive, closed loop enabled, BARO input more than 75 kPa, ECT input from 68-239°F, IAT sensor input from -4°F to 212°F, engine speed from 500-4000 rpm, MAF input from 3-60 g/sec, MAP input from 15-85 kPa, throttle angle less than 65%, VSS input less than 82 mph, then the ECM detected it was not able to correct for a rich condition in Bank 1 during the test. P0175 Fuel Trim System Rich (Bank 2) Fault: No ECM codes set, ECT 120-239°F, in closed loop with Fuel Trim enabled, BAROMETRIC sensor over 70 kPa, IAT sensor at-22° to 302°F, MAP from 20-90 kPa, engine speed 500-4000 rpm, MAF from 5 100 g/sec, throttle angle under 75%, VSS under 75 mph, EVAP Purge off or duty cycle over 75%, then the ECM detected the average LONGFT values below a specified value for 10 seconds. P0175 Fuel Trim System Rich (Bank 2) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0405 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1258, P1404, P1415, P1416 not set, ECT sensor input from 122°F-239°F, IAT sensor input from -4°F-194°F, BAROMETRIC sensor over 74 kPa, engine speed at 400-3000 rpm, throttle angle steady and less than 90%, MAP sensor input at 26-90 kPa, VSS under 85 mph, MAF sensor airflow from 5-90 g/sec, fuel level more than 10%, then the ECM detected that the average LONGFT cell values were below a calculated threshold for 40 seconds. P0175 Fuel Trim System Rich (Bank 2) Fault: No CKP, CMP, ECT, EGR, EST, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire, H02S, TP sensor or VSS codes set, ECT sensor input from 68°F-230°F, IAT sensor input from 0°F-158°F, BARO sensor over 70 kPa, engine speed at 600-4000 rpm, throttle angle steady and less than 90%, MAP sensor input at 15-85 kPa, VSS under 82 mph, MAF sensor airflow from 3-150 g/sec, then the ECM detected that the LONGFT was more than -18% and the SHRTFT was more than -2% of the indicated cells in the fuel trim table, and that the Fault: were met in the cells for one second. P0175 Fuel Trim System Rich (Bank 2) Fault: P0101 P0102 P0103 P0106 P0107 P0108 P0121 P0122 P0131 P0132 P0133 P0134 P0137 P0138 P0140 P0143 P0144 P0146 P0151 P0154 P0562 P0163 P0201 P0202 P0203 P0204 P0205 P0206 P0207 P0208 P0300 P0325 P0327 P0340 P0401 P0506 P0507, P1121, P1133, P1153, P1154, P1441, P1508 and P1509 not set, in closed loop, BAROMETRIC input over 70.8 kPa, ECT input from 184-221°F, IAT sensor input from 40°F to 218°F, engine speed from 400-3000 rpm, MAF input from 3-200 g/sec, MAP input from 27-103 kPa, throttle angle less than 19.8%, EVAP purge tank not full (ECM estimation), Fuel Trim enabled, VSS input less than 70 mph, then the ECM detected that the average fuel trim cell values were greater than 1.125 for short term fuel trim and 0.992 for long term fuel trim for 2.5 seconds. P0175 Fuel Trim System Rich (Bank 2) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 2 SHRTFT values for 120 seconds indicated a rich condition was present. P0175 Fuel Trim System Rich (Bank 2) Fault: No ECT, EGR, EVAP, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP and VSS codes set, throttle position less than 70%, engine speed from 575-4000 rpm, BAROMETRIC input over 70 kPa, MAP input from 22-85 kPa, ECT input from 167-237°F, IAT input from 46 to 169°F, MAF input from 3-85 g/sec, VSS input under 85 mph, then the ECM detected that the average of the Bank 2 SHRTFT values for 120 seconds indicated that a rich condition existed. P0175 Fuel Trim System Rich (Bank 2) Fault: Engine running in closed loop, Fuel Trim enabled, then the ECM detected that the average long term fuel trim (LONGFT) values were less than a predetermined value. P0175 Fuel Trim System Rich (Bank 2) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0200 P0300 P0335 P0336 P0351P0358 P0410 P0412 P0418 P0443 P0500 P0502 P0503, P1120, P1220, P1221, P1258, P1415 and P1416 not set, ECT input from 122-239°F, BAROMETRIC input over 74 kPa (10.7 psi), IAT input from -4°F to 194°F, MAP input from 26-90 kPa, MAF input from 5-90 g/sec, engine speed 500-3000 rpm, throttle angle under 90%, VSS input under 85 mph, Fuel Trim enabled, fuel level over 10%, Fault: met for 40 seconds, then the ECM detected the average Bank 2 LONGFT cell values were below a predetermined threshold. P0175 Fuel Trim System Rich (Bank 2) Fault: No ECM codes set, ECT from 140-239°F, IAT from -22 to 140°F, in closed loop with fuel trim on, BAROMETRIC over 70 kPa, engine speed 500-4000 rpm, throttle angle less than 70%, MAP input from 20-90 kPa, MAF from 5-100 g/sec, VSS under 75 mph, EVAP duty cycle under 75%, then the ECM detected that the LONGFT value was over 112, or that the SHRTFT was at 118 for over 10 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0182 Fuel Temperature Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Fuel Temperature sensor input was over 215°F, condition met for 2 seconds. P0183 Fuel Temperature Sensor Circuit High Input Fault: Engine runtime over 8 minutes, then the ECM detected that the Fuel Temperature sensor input was less than or equal to 64°F, condition met for 2 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0200 Fuel Injector Control Circuit Fault: Engine running, system voltage over 9v, then the ECM detected the Injector Control circuit current was less than 4 amps, condition met for 7 seconds. P0200 Fuel Injector Control Circuit Fault: Engine running, system voltage more than 9v, then the ECM detected that the injector current level was less than 1 amp or that it was continuously high, condition met for 7 seconds. P0200 Fuel Injector Control Circuit Fault: Engine speed over 400 rpm, system voltage trom 6-18v, then the ECM detected the wrong voltage potential on any of the injector driver circuits, condition met for 5 seconds. P0200 Fuel Injector Control Circuit Fault: 1995Engine running, then the ECM detected a fuel injector current level of less than 4 amps for a period of 5-10 seconds. P0200 Fuel Injector Control Circuit Fault: Engine running, then the ECM detected a fuel injector current level of less than 4 amps for a period of 5-10 seconds. P0200 Fuel Injector Control Circuit Fault: Engine running, system voltage over 9v, then the ECM detected that the fuel injector current level was less than 4 amps, or that the fuel injector current level was continuously high for 7 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0201-206 Fuel Pump Control Circuit Fault: Engine running, then the ECM detected an electrical fault in the Injector driver circuit for Cylinder 1, 2, 3, 4, 5 or 6 for 30 seconds. P0201-P0208Injector 1, 2, 3, 4, 5, 6, 7 or 8 Control Circuit Fault: P0560 and P1376 not set, system voltage from 11-16v, and then the ECM detected an improper voltage in the Injector 1, 2, 3, 4, 5, 6, 7 or 8 Control Circuit (Injector 1-8) for 500 ms in the test. P0201-P0206Injector 1, 2, 3, 4, 5 or 6 Control Circuit Fault: Engine running at over 400 rpm with system voltage from 8-18v, then the ECM detected an incorrect voltage level on one or more of the fuel injector driver circuits for five seconds. Note A misfire may not be apparent at idle. The misfire may only occur above idle under an engine load. Drive the vehicle and have an assistant monitor the misfire current counters. Observe if more than one cylinder is misfiring (the Scan Tool may only display one cylinder as misfiring). This may not be apparent until after the repair is completed. If an injector fuse is open for one side of the engine, the Scan Tool may only display 2 or 3 cylinders misfiring. P0201-P0206Injector 1, 2, 3, 4, 5 or 6 Control Circuit Fault: Engine running, and then the ECM detected an incorrect voltage level on one or more of the injector driver circuits for 30 seconds. P0201-P0206Injector 1, 2, 3, 4, 5 or 6 Control Circuit Fault: Engine running, and then the ECM detected an incorrect voltage level on one or more of the injector driver circuits for 30 seconds. P0201P0208Injector 1, 2, 3, 4, 5, 6, 7 or 8 Control Circuit Fault: P0560 and P1376 not set, system voltage from 1U-16v, and then the ECM detected an improper voltage in the Injector 1, 2, 3, 4, 5, 6, 7 or 8 Control Circuit (Injector 1-8) for 500 ms in the test. P0201P0204Injector 1, 2, 3 or 4 Control Circuit Fault: Engine running, system voltage over 9v, the ECM detected that the current for Injector Control Circuit 1-4 was less than one amp, or the current was continuously high, condition met for 7 seconds. P0201P0206Injector 1, 2, 3, 4, 5 or 6 Control Circuit Fault: Engine running, and then the ECM detected an incorrect voltage level on one or more of the fuel injector driver circuits, condition met for over 30 seconds. P0201P0206Injector 1, 2, 3, 4, 5 or 6 Control Circuit Fault: Engine speed over 400 rpm, system voltage from 7.5-15v, then the ECM detected a fault in the injector Control circuit for Injectors 1-6. P0201P0206Injector 1, 2, 3, 4, 5 or 6 Control Circuit Fault: Key on or engine running, then the ECM detected an incorrect voltage level on the injector circuit for over 30 seconds. P0201P0204 P0560 and P1376 not set, and then the ECM detected a short to ground, an open circuit or a short to power on the Injector Control circuit to Injector 1, 2, 3 or 4, condition met for 500 ms. MULTIPLE INSTANCES OF THE SAME CODE: P0215 Engine Shutoff Solenoid Control Circuit Fault: The ECM requested ESO on (Test 1:), then the ECM detected that the ESO control circuit voltage was less than 8v (Test 1:), or with ESO requested off (Test 2:), and the ECM detected that the ESO control circuit voltage was over 8v, condition met for 2 seconds. P0216 Injection Timing Control Circuit Fault: P0251 P0335 P0370 not set, engine speed has not changed over 56 rpm for 5 seconds, then the ECM detected there was a 5 degree difference between Actual and Desired Injector timing, condition met for 2 seconds. P0217 Hot Light Requested, Engine Over temperature Fault: (Hot Lamp) P0117 P0118 not set, and the ECM detected the ECT input was over 244°F. Check for an engine over-heading condition. MULTIPLE INSTANCES OF THE SAME CODE: P0218 Transmission Fluid Over temperature (4L60-E Transmission) P0711 P0712 P0713 not set, key on for 5 seconds, then the ECM detected that the TFT sensor input indicated more than 266°F, Fault: met for 10 minutes. P0218 Transaxle Fluid Over temperature (4T80-E Transmission) P0116 P0117 P0118 P0711 P0712 P0713 not set, ECT input over 32°F, then during Condition or Case 1:, the ECM detected the TFT input was more than 266°F for 30 minutes or during Condition or Case 2:, it detected the TFT input was more than 291°F for 32 seconds. P0218 Transmission Fluid Over temperature (4T65-E Transmission) P0711 P0712 P0713 not set, key on or engine running, then the ECM detected that the TFT sensor input indicated a temperature of more than 266°F, condition met for 10 minutes. P0218 Transaxle Fluid Over temperature (4L30-E Transmission) Key on or engine running, then the ECM detected the TFT sensor input was more than 329°F, Fault: met for 19.9 seconds. P0218 Hot Light Requested, Transaxle Over temperature Fault: (Hot Lamp)No Transaxle codes set, and the ECM detected that the Transaxle Fluid Temperature was over 284°F, and the Actuator Temperature was over 320°F. Check for towing overload or an oil cooler fault. P0219 Engine Overs peed Condition Engine running, then the ECM detected five Engine Shutoff (ESO) cycles occurred without any rpm drop. P0220 Accelerator Pedal Position Sensor 2 Circuit Key on or engine running, then the ECM detected that the reference voltage for APP Sensor 2 was less than 4.80v, condition met for 2 seconds. P0221 (STS Accelerator Pedal Position Sensor 2 Performance Fault: Lamp Code)No APP sensor codes set, system voltage over 6.4v, engine speed over 300 rpm, then the ECM detected that the difference between APP-2 and APP-3 was over 500 mv, or the difference between APP-2 and APP-1 was over 230 mv, condition met for 2 seconds. P0222 (STS Accelerator Pedal Position Sensor 2 Low Input Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP-2 sensor voltage was less than 250 mv, condition met for 2 seconds. P0223 (STS Accelerator Pedal Position Sensor 2 High Input Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP-2 sensor voltage was more than 4.75v, condition met for 2 seconds. P0225 (STS Accelerator Pedal Position Sensor 3 Circuit Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP-3 reference voltage was less than 4.8v, condition met for 2 seconds. P0226 (STS Accelerator Pedal Position Sensor 3 Performance Fault: Lamp Code)No APP sensor codes set, system voltage over 6.4v, engine speed over 300 rpm, then the ECM detected that the difference between APP-3 and APP-1 was over 230 mv, or the difference between APP-3 and APP-2 was over 500 mv, condition met for 2 seconds. P0227 (STS Accelerator Pedal Position Sensor 3 Low Input Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP-3 sensor voltage was less than 250 mv, condition met for 2 seconds. P0228 (STS Accelerator Pedal Position Sensor 3 High Input Fault: Lamp Code)Key on or engine running, then the ECM detected that the APP-3 sensor voltage was more than 4.75v, condition met for 2 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0230 Fuel Pump Control Circuit Fault: Key on or engine running, then the ECM detected an improper voltage level on the Fuel Pump Relay control circuit, condition met for 500 milliseconds. P0230 Fuel Pump Control Circuit Fault: Engine running, system voltage from 8-18v, then the ECM detected a short to ground, open circuit or a short to power in the Fuel Pump driver control circuit, Fault: met for 10 seconds. P0230 Fuel Pump Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual state and the Commanded state of the FP driver control circuit did not match for 2.5 seconds. P0230 Fuel Pump Control Circuit Fault: Key on or engine running, system voltage from 8-18v, then the ECM detected an electrical fault in the Fuel Pump Control Circuit for more than 30 seconds. P0230 Fuel Pump Control Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an electrical fault in the Fuel Pump Control Circuit for more than 0.5 seconds. P0230 Fuel Pump Relay Control Circuit Fault: Key on or engine running, system voltage from 9-18v, then the ECM detected an electrical fault in the Fuel Pump Control Circuit, condition met for more than 1 second. P0230 Fuel Pump Control Circuit Fault: 7-Key on or engine running, system voltage from 7.5-15v, then the ECM detected a short to ground, an open circuit or a short to power in the Fuel Pump Control circuit. Note The ECM (CCM) checks for shorts to ground and open circuits only during the ECM power-down phase. It checks for shorts to battery voltage continuously (engine RPM over 40 RPM). P0230 Fuel Pump Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Fuel Pump driver control circuit did not match for at least 2.5 seconds. P0231 Fuel Pump Feedback Circuit Low Input Fault: Engine speed over 24 rpm, Fuel Lift Pump commanded on, then the ECM detected the difference between system voltage and Fuel Pump feedback voltage was over 4v, condition met for 2 seconds. P0231 Fuel Pump Feedback Circuit Low Input Fault: Engine speed over 24 rpm, Fuel Lift Pump commanded on, then the ECM detected that the Fuel Pump Feedback voltage was 2v or less, condition met for 1.3 seconds. P0232 Fuel Pump Feedback Circuit High Input Fault: No ECT or ICM codes set, ECT over 122°F, ignition REF pulses not detected since Key on, then the ECM detected the fuel pump feedback voltage remained over 7v for 6 seconds after key on. P0232 Fuel Pump Feedback Circuit High Input Fault: P0117 P0118 P0322 not set, key on, ECT input 122°F or higher, no Ignition REF pulses detected, then the ECM detected that the Fuel Pump feedback signal was over 7v for 6 seconds. P0236 Turbocharger Boost System Performance Fault: Engine speed over 2400 rpm (Test 1:), then the ECM detected that the Actual Boost Pressure input was higher than, lower than or equal to 20 kPa from the Desired value, or with the engine speed between 1800-2400 (Test 2:), the ECM detected that the Actual Boost Pressure input was higher than, lower than or equal to 20 kPa from the Desired value, condition met for 12 seconds. P0237 Turbocharger Boost Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Boost Pressure input was less than 40 kPa, condition met for 2 seconds. P0238 Turbocharger Boost Circuit High Input Fault: Engine speed less than 3506 rpm, then the ECM detected that the Turbocharger Boost Pressure input was more than or equal to 4.80v (202 kPa), condition met for 2 seconds. P0243 Supercharger Boost Solenoid Control Circuit Fault: Key on or engine running, then the ECM detected an improper voltage level on the Boost Control Solenoid circuit for 30 seconds. P0251 Injection Pump Camshaft System Fault: Engine running, then the ECM detected eight (8) consecutive Camshaft signals were missing, or that an average of eight (8) Camshaft signals were missing for 32 No. 1 Cylinder events. P0263 Cylinder 1 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 1 and the ECM detected the fuel reduction for CYL 1 exceeded the limit for 2 seconds. P0266 Cylinder 2 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 2 and the ECM detected the fuel reduction for CYL 2 exceeded the limit for 2 seconds. P0269 Cylinder 3 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 3 and the ECM detected the fuel reduction for CYL 3 exceeded the limit for 2 seconds. P0272 Cylinder 4 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 4 and the ECM detected the fuel reduction for CYL 4 exceeded the limit for 2 seconds. P0275 Cylinder 5 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 5 and the ECM detected the fuel reduction for CYL 5 exceeded the limit for 2 seconds. P0278 Cylinder 6 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 6 and the ECM detected the fuel reduction for CYL 6 exceeded the limit for 2 seconds. P0281 Cylinder 7 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 7 and the ECM detected the fuel reduction for CYL 7 exceeded the limit for 2 seconds. P0284 Cylinder 8 Balance System Fault: Engine runtime over 90 seconds at idle speed, engine coolant at normal temperature, constant fault in CYL 8 and the ECM detected the fuel reduction for CYL 8 exceeded the limit for 2 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0300 MULTIPLE Engine Misfire Detected (Catalyst) P0105 P0107 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0131 P0132 P0133 P0134 P0171 P0172 P0325 P0335 P0341 P0342 P0502 P0503 P0506 P0507 P0601 P0740 P0742, P1133 and P1621 not set, engine runtime over 5 seconds, engine speed 469-6400 rpm, system voltage from 9-17v, ECT input from 20-254°F, any change in throttle angle under 8% in 1 second or any change in throttle angle over 1.5% in one second, then the ECM determined the Misfire total was more than 8 counts. P0300 MULTIPLE Engine Misfire Detected (Catalyst)No CKP, CMP, ECT, MAF, MAP, TP or VSS codes set, ECT input from 21-253°F (21-248°F on X), engine speed 525-6600 rpm, system voltage 10-18v, throttle position steady, then the ECM detected a crankshaft rpm variation that indicated a misfire sufficient to cause catalyst damage or high emissions levels. P0300 Engine Misfire Detected Fault: P0101 P0102 P0103 P0117 P0118 P0122 P0123 P0335 P0336 P0500 P0502 P0641 P0742 not set, system voltage from 10-16v, ECT input from 19-266°F, engine speed from 425 3000 rpm, Decel Fuel Cutoff, ABS and Traction Control inactive, throttle angle steady (± 1 %), Transmission not changing gears, A/C Clutch in steady state, ABS signals not exceeding Rough Road thresholds, AIR Test not active, then ECM detected a misfire that could damage the catalyst or cause high emissions. P0300 Engine Misfire Detected Fault: No ECM or TCM codes set, ECT from -13°F to 248°F, engine speed at 525-4775 rpm, throttle angle steady (t1%), then the ECM detected a crankshaft RPM variation that indicated an engine misfire condition that could damage the converter. P0300 Engine Misfire Detected Fault: No CKP, CMP, ECT, MAF, MAP, TP or VSS codes set, ECT input from 21-248°F, system voltage from 9-18v, engine speed from 550-5800 rpm, throttle angle steady, then the ECM detected a crankshaft speed variation that indicated a misfire that could damage a catalyst or cause emission levels to exceed standards. P0300 Engine Misfire Detected Fault: No ASS, CKP, CMP, MAF, TP or VSS codes set, fuel level over 10%, system voltage from 11-16v, engine speed from 450-5000 rpm, throttle position steady within 2% for 100 ms, if the ECT input is less than 20°F at startup, misfire testing is delayed until the ECT input exceeds 70°F, if the ECT input is more than 20°F at startup, misfire detection is delayed for 5 seconds, then the ECM detected a deceleration in crankshaft speed characteristic of a misfire. P0300 Engine Misfire Detected Fault: Engine runtime over 90 seconds at idle speed, ECT sensor input more than 132°F, fuel adjustment more than a calibrated amount in the ECM, then the ECM detected MULTIPLE misfires had occurred. P0300 Engine Misfire Detected Fault: Engine speed from 200-4000 rpm, ECT input from 20-254°F, system voltage from 9-17v, then the ECM detected a Misfire in more than one engine cylinder at the same time. P0300 Engine Misfire Detected Fault: (Catalyst)No CKP, CMP, ECT, MAF, MAP, TP or VSS codes set, system voltage from 9-18v, ECT input from 21-253°F, IAT input more than 17°F, engine speed from 520-5900 rpm, throttle angle steady, then the ECM detected a crankshaft RPM variation that indicated a misfire sufficient to cause TWC damage or high emission levels. P0300 Random Misfire Detected Fault: No ECM or TCM codes set, ECT input from -13°F to 248°F, engine speed at 525-4775 rpm, throttle angle steady, then the ECM detected a crankshaft RPM variation that indicated an engine misfire condition that could damage the converter. P0300 Engine Misfire Detected Fault: P0101 P0102 P0103 P0117 P0118 P0125 P0335 P0336 P0341 P0342 P0343 P0500 P0502 P0503, P1120, P1220, P1221 and P1258 not set, system voltage from 10-18v, ECT input from 19°F to 266°F, engine speed from 425-3000 rpm, Decel Fuel Cutoff, ABS and Traction Control not active, throttle angle steady, Transmission not changing gears, fuel level over 10%, A/C Clutch in steady state, ABS signals not exceeding Rough Road thresholds, AIR Test not active, then the ECM detected either an emissions type misfire or a catalyst damaging misfire was present. P0300 Random Misfire Detected Fault: (Catalyst)No CKP, ECT, IAT, MAP or TP sensor codes set, engine speed from 469-7188 rpm, Throttle Control Fuel Cutoff and DTCO not active, no rapid throttle change, ECT input from 20-244°F, then the ECM detected a random misfire present in more than one cylinder. P0301-304 Cylinder 1, 2, 3 & 4 Misfire Detected Fault: P0105 P0107 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0131 P0132 P0133 P0134 P0171 P0172 P0325 P0335 P0341 P0342 P0502 P0503 P0506 P0507 P0601 P0740 P0742, P1133 and P1621 not set, engine runtime over 5 seconds, engine speed from 469-6400 rpm, system voltage from 9-17v, ECT input from 20-254°F, throttle position has not increased more than 8% in one second or throttle position has not decreased more than 1.5% in one second, then the ECM determined that the Misfire total for Cylinder 1, 2, 3 or 4 was more than 8 counts. P0301-308Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 Misfire Detected Fault: (Catalyst)No ECM codes set, ECT sensor input from 20-254°F, no Rough Road signal detected, engine speed 300-5600, throttle angle steady, then the ECM detected that the Misfire total for Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 was more than 12 counts. P0301-308Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 Misfire Detected Fault: (Catalyst)Engine runtime over 90 seconds at idle speed, ECT sensor input more than 132°F, and the ECM detected the fuel adjustment value for CYL 1, 2, 3, 4, 5, 6, 7 or 8 was over the calibrated amount. P0301-308Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 Misfire Detected Fault: No ECM codes set, ECT sensor input from 20-254°F, no Rough Road signal detected, engine speed 300-5600 rpm, throttle angle steady, then the ECM detected that the Misfire total for Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 was more than 12 counts. P0301-304Cylinder 1, 2, 3 or 4 Misfire Detected Fault: Engine speed under 6500 rpm with change in speed less than 200 rpm in 50 milliseconds, ECT input from 14-230°F, IAT input from 14-158°F, BAROMETRIC input over 75 kPa, fuel level over 25%, then the ECM detected an rpm change of 200 in 50 m/sec, change in TP input less than 1.9 degrees in 16 firing events, change in MAP input less than 1.3 kPa in 16 firing events, then the ECM detected that the misfire rate for CYL 1-4 during 200 engine revolutions was greater than a specified value, or the misfire rate at 1000 engine revolutions was greater than a specified value, condition met for 5 seconds after the engine startup to 1 second after Fuel Shutoff. P0301-304Cylinder 1, 2, 3 or 4 Misfire Detected Fault: (Catalyst)Engine speed from 200-4000 rpm, ECT input from 20-254°F, system voltage from 9-17v, then the ECM detected a Misfire in Cylinder 1, 2, 3 or 4 that could damage the catalyst or cause emission levels to exceeded the federally mandated standards. P0301-304Cylinder 1, 2, 3 & 4 Misfire Detected Fault: No CKP, CMP, ECT, Fuel Trim, H02S, IAC, IAT, Knock Sensor, MAP, ECM Memory, TP or VSS codes set, engine speed from 469-5906 rpm, engine runtime over 5 seconds, system voltage from 9-17v, ECT input from 20-254°F, fuel level over 10%, then the ECM determined the Misfire total for CYL 1-4 was over 8 counts. P0301-308Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 Misfire Detected Fault: No ECM codes set, ECT from 20-254°F, EBCM Rough Road signal not detected, engine speed 300-5600 rpm, throttle angle steady, then the ECM determined that the Misfire total for Cylinder 1, 2, 3, 4, 5, 6, 7 or 8 was equal to 12 counts or higher. - P0301-306Cylinder 1, 2, 3, 4, 5 or 6 Misfire Detected Fault: P0100 P0115 P0116 P0335, P1120 and P1220 not set, IAT sensor input more than 17°F, engine speed at 520-6520 rpm, engine runtime over 5 seconds, throttle angle steady, ABS, Fuel Cutoff (including traction control, Decel and high speed or RPM control), Torque Control and torque management not active, EVAP system test not active, rough road not indicated, then the ECM detected a misfire rate in the identified cylinder that was from 1% to 12.5%, Fault: met for 5 camshaft revolutions. P0301-304Cylinder 1, 2, 3 or 4 Misfire Detected Fault: (Catalyst)No CKP, ECT, IAT, MAP or TP sensor codes set, engine speed from 469-7188 rpm, Throttle Control Fuel Cutoff and DTCO not active, no rapid throttle change, ECT input from 20-244°F, then the ECM detected a misfire in Cylinder 1, 2, 3 or 4. P0321 IC Module Spark Reference Circuit Fault: Engine running below 1200 rpm, then the ECM detected 150 fuel control pulses with no spark reference (no 18X CKP pulses) signals. P0321 IC Module Spark Reference Circuit Fault: Engine running, then the ECM detected that fuel control reference signals were present without any spark reference signals present (no 24X CKP sensor signals). P0322 ICM 4X Reference Circuit No Frequency Fault: P0340 and P1376 not set, CMP sensor signals received, and the ECM did not detect any 4X fuel control pulses for 4 seconds. P0322 ICM 4X Reference Circuit No Frequency Fault: P0340 and P1376 not set, engine cranking or running with CMP sensor pulses received in the last 4 seconds, then the ECM did not detect any 4X Reference fuel control pulses for 4 seconds. P0323 DI Ignition Low-resolution Circuit Intermittent Fault: ECM detected an interruption in DI optical distributor low or high resolution signals. This code can be caused by a misfire condition. P0323 DI Ignition Low-resolution Circuit Intermittent Fault: ECM detected an interruption in DI optical distributor low or high resolution signals. This code can be caused by a misfire condition. P0325 or Knock Sensor Circuit Fault: No CKP, ECT, MAF, TP or VSS codes set, system voltage 10-18v, engine speed 1000-5000 rpm, ECT input more than 153°F, throttle position from 10-15%, engine load over 45%, maximum spark retard less than 15°, and the ECM detected a fault in the integrated Knock sensor circuitry that prevented diagnosis for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0325 Knock Sensor Circuit P0122 and P0123 not set, engine runtime over 20 seconds, ECT input more than 158°F, engine speed over 1500 rpm (from 1800-2400 on T), MAP sensor input more than 60 kPa, engine vacuum more than 35 kPa, then test started and the ECM determined that the Knock sensor voltage and variation were not within the normally expected ranges, condition met for 15 seconds. P0325 Knock Sensor Module Performance Fault: Engine runtime over 20 seconds, engine speed 1650-3000 rpm, MAP input less than 49 kPa, ECT sensor input more than 140°F, throttle angle more the idle throttle angle, then the ECM detected a fault in the Knock Sensor system or its circuits for 3 seconds. P0325 Knock Sensor Circuit Error Fault: Engine running, then the ECM detected the Knock Sensor signal was below 1.5v or above 3.6v on 1, L, or was below 0.8v or above 2.Ov on the , condition present for 20 seconds. P0325 Knock Sensor Circuit Fault: CKP, ECT, MAF or VSS codes set, engine speed from 1000-4000 rpm (1000-3000 on 1), throttle angle above 3% (above 15% on VIN 1), engine load above 20% (above 45% on 1), ECT input more than 167°F, maximum spark retard below 15°, system voltage over 9v, then the ECM detected a fault in the Knock sensor circuitry that would not allow proper diagnosis for 1 second. P0325 Knock Sensor Circuit Fault: P0327 not set and engine runtime over 2 minutes, system voltage from 10-17.1 v, and then the ECM detected a Knock sensor signal that indicated continuous engine knock for 5 seconds. P0325 Knock Sensor Module Circuit Fault: Engine speed over 600 rpm, system voltage from 11-18v, then the ECM detected a fault in the Knock sensor or its circuitry that would not allow proper diagnosis of the ECM Knock Sensor system. P0325 Knock Sensor Circuit Fault: No CKP, CMP, ECT, MAF, TP or VSS codes set, engine runtime over 20 seconds, speed from 1650-3000 rpm, ECT sensor input over 135°F, MAP sensor more than 49 kPa, then the ECM detected a fault in the KS system or circuits for 3 seconds. P0325 Knock Sensor Circuit Fault: ECM detected that the KS Module was missing, or the KS Module or circuits are faulty. P0325 Knock Sensor Performance Fault: No CKP, CMP, ECT, MAF, TP or VSS codes set, system voltage over 9v, engine speed from 1000-2500 rpm, ECT sensor input over 140°F, engine load more than 45%, throttle angle over 10%, maximum spark retard less than 15 degrees, then the ECM detected a fault in the KS diagnostic circuit that prevented it from performing proper diagnosis of the KS circuit, Fault: present for 300 3X reference periods (100 crankshaft revolutions). P0325 Knock Sensor Module Circuit Fault: Engine running, system voltage from 11-16v, then the ECM detected that the Knock sensor signal indicated a knock event longer than 99.9 ms, condition met for 3 seconds continuously. P0325 Knock Sensor Module Performance Fault: P0327 not active, engine runtime over 2 minutes, system voltage from 10-17v, then the ECM detected that continuous engine knock signals (KS signals) were present for 5 seconds. P0325 Knock Sensor Circuit Fault: Engine speed at 1200 rpm or higher, the TP sensor and VSS inputs indicate the vehicle is accelerating, then the ECM detected that the Knock sensor signals were below an acceptable level. P0325 Knock Sensor Circuit Fault: Engine runtime over 20 seconds, engine speed over 1600 rpm, ECT input more than 131°F, MAP sensor input over 60 kPa, then the ECM detected that the Knock sensor voltage and variation was not within its acceptable range, condition met for 60 seconds. P0325 Knock Sensor Circuit Fault: P0327 not set and engine runtime over 2 minutes, system voltage from 10-17.1v, and then the ECM detected a Knock sensor signal that indicated continuous engine knock for 5 seconds. P0325 Knock Sensor Circuit Fault: No CKP, ECT, MAF, TP or VSS codes set, engine runtime over 30 seconds, throttle position over 15%, engine load over 45%, system voltage over 9v, engine speed from 1000-5000 rpm, ECT input more than 153°F, maximum spark retard less than 15 degrees, then the ECM detected a fault in the Integrated Knock sensor circuitry that prevented proper diagnosis of the KS for 1 second. P0325 Knock Sensor Circuit 1 Fault: Engine runtime over 10 seconds, ECT sensor input more than 104°F, engine allowed to idle for 5 seconds (this allows the ECM to learn the KS minimum noise level), then engine speed more than 2,000 rpm, then the ECM did not detect a difference between the minimum learned engine noise level at idle and the engine noise between 2500-3500 RPM, condition met for five seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0326 Knock Sensor Noise Channel High Input Fault: No ECM codes set, engine runtime over 10 seconds, ECT input more than 149°F, throttle angle over 2% (over 1 % on ), engine speed from 2500-2900 rpm, then the ECM detected that the KS noise channel signal was over 4.8v (over 5.Ov on M). P0326 Knock Sensor Noise Channel High Input Fault: No ECM codes set, engine running 5-10 seconds, ECT input over 149°F, throttle angle over 10% (over 1% on X), engine speed from 2200-2500 rpm (from 2600-2900 on X), then the ECM detected that the KS noise channel voltage was over 4.8v. P0326 Knock Sensor Circuit Excessive Spark Retard Fault: Engine speed over 600 rpm, Knock Detection enabled, then the ECM detected a KS signal that indicated an engine knock was present, or the ECM detected that the commanded spark retard at a given engine load and speed was more than the calibrated value, Fault: met for at least 3.5 seconds during the test period. Note If no engine noise present, spark knock can also be caused by use of low octane fuel (under 85 octane). P0326 Knock Sensor Noise Channel High Input Fault: No ECT, TP or VSS codes set, engine speed from 2500-2900 rpm, engine runtime over 10 seconds, ECT sensor input over 149°F, throttle angle over 1.5%, then the ECM detected that the Knock Sensor noise channel voltage was more than 5.Ov. P0326 Knock Sensor Circuit Excessive Spark Retard Fault: P0325 P0327 not set, system voltage from 10-16v, Knock Learn enabled, Octane Learn and Lock-in not complete, then the ECM detected that the 87 Octane Decay Multiplier was 0.996 or more, condition met for 64 seconds. P0326 Knock Sensor Performance Fault: 1995No ECM codes set, ECT input more than 140°F, engine runtime over 2 minutes, engine speed over 2200 rpm, throttle angle over 6%, then the ECM detected the Knock Sensor AC voltage input was less than a minimum value. P0326 Knock Sensor Performance Fault: Engine running, then the ECM detected excessive spark knock that it could not reduce by retarding the spark timing. P0327 Knock Sensor Circuit Fault: No CKP, ECT, MAF, TP or VSS codes set, system voltage 10-18v, engine speed 1000-5000 rpm, ECT input more than 153°F, throttle position from 10-15%, engine load over 45%, maximum spark retard less than 15°, and the ECM detected a Knock sensor signal that was within a calculated average voltage range for 10 seconds. P0325 Knock Sensor Performance Fault: No CKP, CMP, ECT, MAF, TP or VSS codes set, system voltage over 9v, engine speed from 1000-2500 rpm, ECT sensor input over 140°F, engine load more than 45%, throttle angle over 10%, maximum spark retard less than 15 degrees, then the ECM detected a fault in the KS diagnostic circuit that prevented it from performing proper diagnosis of the KS circuit, Fault: present for 300 3X reference periods (100 crankshaft revolutions). P0325 Knock Sensor Module Circuit Fault: Engine running, system voltage from 11-16v, then the ECM detected that the Knock sensor signal indicated a knock event longer than 99.9 ms, condition met for 3 seconds continuously. P0325 Knock Sensor Module Performance Fault: P0327 not active, engine runtime over 2 minutes, system voltage from 10-17v, then the ECM detected that continuous engine knock signals (KS signals) were present for 5 seconds. P0325 Knock Sensor Circuit Fault: Engine speed at 1200 rpm or higher, the TP sensor and VSS inputs indicate the vehicle is accelerating, then the ECM detected that the Knock sensor signals were below an acceptable level. P0325 Knock Sensor Circuit Fault: Engine runtime over 20 seconds, engine speed over 1600 rpm, ECT input more than 131°F, MAP sensor input over 60 kPa, then the ECM detected that the Knock sensor voltage and variation was not within its acceptable range, condition met for 60 seconds. P0325 Knock Sensor Circuit Fault: P0327 not set and engine runtime over 2 minutes, system voltage from 10-17.1v, and then the ECM detected a Knock sensor signal that indicated continuous engine knock for 5 seconds. P0325 Knock Sensor Circuit Fault: No CKP, ECT, MAF, TP or VSS codes set, engine runtime over 30 seconds, throttle position over 15%, engine load over 45%, system voltage over 9v, engine speed from 1000-5000 rpm, ECT input more than 153°F, maximum spark retard less than 15 degrees, then the ECM detected a fault in the Integrated Knock sensor circuitry that prevented proper diagnosis of the KS for 1 second. P0325 Knock Sensor Circuit 1 Fault: Engine runtime over 10 seconds, ECT sensor input more than 104°F, engine allowed to idle for 5 seconds (this allows the ECM to learn the KS minimum noise level), then engine speed more than 2,000 rpm, then the ECM did not detect a difference between the minimum learned engine noise level at idle and the engine noise between 2500-3500 RPM, condition met for five seconds. P0326 Knock Sensor Noise Channel High Input Fault: No ECM codes set, engine runtime over 10 seconds, ECT input more than 149°F, throttle angle over 2% (over 1 % on ), engine speed from 2500-2900 rpm, then the ECM detected that the KS noise channel signal was over 4.8v (over 5.Ov on M). P0326 Knock Sensor Noise Channel High Input Fault: No ECM codes set, engine running 5-10 seconds, ECT input over 149°F, throttle angle over 10% (over 1% on X), engine speed from 2200-2500 rpm (from 2600-2900 on X), then the ECM detected that the KS noise channel voltage was over 4.8v. P0326 Knock Sensor Circuit Excessive Spark Retard Fault: Engine speed over 600 rpm, Knock Detection enabled, then the ECM detected a KS signal that indicated an engine knock was present, or the ECM detected that the commanded spark retard at a given engine load and speed was more than the calibrated value, Fault: met for at least 3.5 seconds during the test period. Note If no engine noise present, spark knock can also be caused by use of low octane fuel (under 85 octane). P0326 Knock Sensor Noise Channel High Input Fault: No ECT, TP or VSS codes set, engine speed from 2500-2900 rpm, engine runtime over 10 seconds, ECT sensor input over 149°F, throttle angle over 1.5%, then the ECM detected that the Knock Sensor noise channel voltage was more than 5.Ov. P0326 Knock Sensor Circuit Excessive Spark Retard Fault: P0325 P0327 not set, system voltage from 10-16v, Knock Learn enabled, Octane Learn and Lock-in not complete, then the ECM detected that the 87 Octane Decay Multiplier was 0.996 or more, condition met for 64 seconds. P0326 Knock Sensor Performance Fault: No ECM codes set, ECT input more than 140°F, engine runtime over 2 minutes, engine speed over 2200 rpm, throttle angle over 6%, then the ECM detected the Knock Sensor AC voltage input was less than a minimum value. P0326 Knock Sensor Performance Fault: Engine running, then the ECM detected excessive spark knock that it could not reduce by retarding the spark timing. MULTIPLE INSTANCES OF THE SAME CODE: P0327 or Knock Sensor Circuit Fault: No CKP, ECT, MAF, TP or VSS codes set, system voltage 10-18v, engine speed 1000-5000 rpm, ECT input more than 153°F, throttle position from 10-15%, engine load over 45%, maximum spark retard less than 15°, and the ECM detected a Knock sensor signal that was within a calculated average voltage range for 10 seconds. P0327 Knock Sensor Bank I Circuit Fault: P0117 P0118 P0122 P0123 P0125, P1114 and P1115 not set, engine runtime over 20 seconds, ECT input more than 176°F, engine speed from 1100-2500 rpm, throttle angle more than 25%, then the ECM determined that the Bank 1 KS frequency was less than or more than the expected amount for 3 seconds. P0327 Knock Sensor Bank I Circuit Fault: No CKP, ECT, MAF or VSS codes set, engine speed from 1000 4000 rpm (1000-3000 on 1), throttle angle above 3% (above 15% on 1), engine load above 20% (above 45% on 1), ECT input more than 167°F, maximum spark retard below 15°, system voltage over 9v, then the ECM detected a Knock Sensor (1) signal within a calculate average voltage range for 1 second. P0327 Knock Sensor Noise Channel Low Input Fault: No ECT or TP sensor codes set, timing retard less than 0 degrees, system voltage from 10-17v, ECT input 140°F or more, engine runtime over 2 minutes, engine speed from 500-900 rpm, then during the Active Noise Channel Test Active Noise Channel Test Knock sensor update test completed, throttle position less than 5.9%, engine speed from -3000 rpm, timing retard less than 0 degrees, then the ECM detected that the ESC noise channel voltage was less than 500 millivolts. P0327 Knock Sensor Circuit Low Input Fault: No ECT or TP sensor codes set, timing retard is 0 degrees or less, system voltage from 10-17v, ECT input 140°F or more, engine runtime over 2 minutes, Knock sensor noise less than 3 counts, engine speed from -3000 rpm, throttle position over 6%, then the ECM detected that the difference between the Actual noise value and the Learned Minimum noise level was less than 50 counts, or the difference was more than 200 counts. P0327 Knock Sensor Circuit Low Input Fault: Engine speed over 3000 rpm, ECT sensor input more than 104°F, throttle angle over 5%, system voltage from 11-18v, then the ECM detected that the Knock sensor signal was less than 0.5v. P0327 Knock Sensor Circuit (Bank 1) Fault: Engine runtime more than 20 seconds, engine speed at 1650-3000 rpm, ECT sensor input over 135°F, MAP sensor input more than 49 kPa, throttle angle over 0.5%, then the ECM detected that the Knock Sensor 1 signal frequency was less than or more than the expected value, condition met for three seconds. P0327 Knock Sensor Circuit (Bank 1) Fault: No CKP, CMP, ECT, MAF, TP or VSS codes set, system voltage over 9v, engine speed from 1000-2500 rpm, ECT sensor input over 140°F, engine load more than 45%, throttle angle over 10%, maximum spark retard less than 15 degrees, then the ECM detected that the KS 1 signal was within the calculated voltage range for 300 3X reference periods (100 crankshaft revolutions). P0327 Knock Sensor Circuit Low Input Fault: Engine speed over 3000 rpm, ECT sensor input more than 104°F, throttle angle over 4.8 degrees, system voltage 11-16v, then the ECM detected that the Knock sensor background noise voltage was less than 0.5v above the learned minimum for 1 second. P0327 Knock Sensor Noise Channel Low Input Fault: No ECT or TP sensor codes set, ECT input more than 140°F, system voltage 10-17v, engine speed from 500-900 rpm, engine runtime over 2 minutes, then the ECM detected during this test Active Noise Channel Test Knock sensor update test completed, throttle angle under 5.9%, engine speed -3000 rpm, timing retard less than 0 degrees, that the ESC noise channel voltage was less than 500 millivolts. P0327 Knock Sensor Circuit Low Input Fault: No ECT or TP sensor codes set, timing retard is 0 degrees or less, system voltage from 10-17v, ECT input 140°F or more, engine runtime over 2 minutes, Knock sensor noise less than 3 counts, engine speed from -3000 rpm, throttle position more than 6%, then the ECM detected the difference between the Actual noise value and the Learned Minimum noise level was less than 50 counts (25 on 7.4L), or the difference was more than 200 counts. P0327 Knock Sensor Circuit Low Input Fault: P0327 not set, engine runtime more than 2 minutes, system voltage from 10-17v, timing retard not over 0°, ECT input more than then 140°F, engine speed from 500-900 rpm, then the ECM detected continuous KS activity, condition met for 500 ms. P0327 Knock Sensor Circuit Low Input Fault: No ECT or TP sensor codes set, timing retard is 0 degrees or less, system voltage from 10-17v, ECT input 140°F or more, engine runtime over 2 minutes, Knock sensor noise less than 3 counts, engine speed -3000 rpm, throttle position over 6%, then the ECM detected the difference between the Actual and the Learned Minimum noise levels was under 50 or more than 200 counts. P0327 Knock Sensor Noise Channel Low Input Fault: No ECM codes set, engine speed 2200-2900 rpm, ECT input more than 149°F, throttle angle from 1-10%, then the ECM detected that the Knock sensor noise channel input was 0.5v. P0327 Knock Sensor Circuit Fault: No CKP, CMP, ECT, TP or VSS codes set, engine runtime over 30 seconds, throttle angle over 1.5%, ECT input over 140°F, engine speed from 1000-5000 rpm, engine load over 45%, maximum spark retard less than 15 degrees, system voltage over 9v, then the ECM detected that the Knock sensor signal was within a calculated range, condition met for at least 10 seconds. P0327 Knock Sensor Circuit Fault: Engine runtime over 10 seconds, ECT input over 149°F, VSS input over 5 mph, engine speed at 2500-3500 rpm, then the ECM did not detect a change in the minimum noise level during a 5 second test. P0327 Knock Sensor Bank I Circuit Fault: Engine runtime over 20 seconds, engine speed from 1650-3000 rpm, ECT input more than 140°F, MAP input less than 49 kPa, throttle angle more than the idle throttle angle, then the ECM determined that the Bank 1 KS frequency was less than or more than the expected amount, condition met for less than 3 seconds. P0330 Knock Sensor Bank 2 Circuit Fault: Engine runtime over 10 seconds, ECT sensor input more than 104°F, engine allowed to idle for 5 seconds (this allows the ECM to learn the KS minimum noise level), then engine speed more than 2,000 rpm, then the ECM did not detect a difference between the minimum learned engine noise level at idle and the engine noise between 2500-3500 RPM, condition met for five seconds. P0332 Knock Sensor Bank 2 Circuit Fault: P0117 P0118 P0122 P0123 P0125, P1114 and P1115 not set, engine runtime over 20 seconds, ECT input more than 176°F, engine speed from 1100-2500 rpm, throttle angle more than 25%, then the ECM determined that the Bank 2 KS frequency was less than or more than the expected amount for 3 seconds. P0327 Knock Sensor Bank 2 Circuit Fault: No CKP, ECT, MAF or VSS codes set, engine speed from 1000 4000 rpm (1000-3000 on 1), throttle angle above 3% (above 15% on 1), engine load above 20% (above 45% on 1), ECT input more than 167°F, maximum spark retard below 15°, system voltage over 9v, then the ECM detected a Knock Sensor (2) signal within a calculate average voltage range for 1 second. P0332 Knock Sensor Bank 2 Circuit Fault: Engine runtime over 20 seconds, engine speed from 1650-3000 rpm, ECT sensor input over 135°F, MAP sensor input more than 48 kPa, throttle angle over 0.5%, then the ECM detected that the Knock Sensor 2 signal frequency was less than or more than the expected value, condition met for three seconds. P0332 Knock Sensor Bank 2 Circuit Fault: No CKP, CMP, ECT, MAF, TP or VSS codes set, system voltage over 9v, engine speed from 1000-2500 rpm, ECT input over 140°F, engine load more than 45%, throttle angle over 10%, maximum spark retard less than 15 degrees, then the ECM detected that the KS 2 signal was not within the calculated voltage range, Fault: present for 300 3X reference periods (100 crankshaft revolutions). P0332 Knock Sensor Circuit Low Frequency Fault: No ECT and TP sensor codes set, ECT sensor input over 176°F, engine runtime over 20 seconds, engine speed from 1100-2500 rpm, throttle angle over 10%, then the ECM detected an Actual KS signal frequency that was higher or lower than an Expected value. MULTIPLE INSTANCES OF THE SAME CODE: P0335 Crankshaft Position Sensor Circuit Fault: P0341 not set, engine running, then the ECM detected that the CKP resynchroniation counter incremented to more than 15 within 4 minutes and 15 seconds during the CKP sensor test. P0335 DI Crankshaft Position Sensor Circuit Fault: Engine speed 500-4000 rpm, system voltage over 9v, then the ECM detected the CKP low-resolution angle was outside a range of -21° to plus +51° deviation or received no CKP sensor signals. P0335 Crankshaft Position Sensor Circuit Fault: P0101 P0102 P0103 P0341 P0342 and P0343 not set, ignition switch in crank mode, CMP sensor is transitioning, MAF sensor input more than 3 g/sec, then the ECM did not receive any CKP sensor signals, condition met for 4 seconds. P0335 CKP Sensor Performance Fault: Engine speed under 300 rpm, then the ECM detected that 8 consecutive CKP sensor signals were missing for 8 Cyl No. 1 events, or with the engine running, then the ECM detected 8 consecutive CKP signals were missing for 32 Cyl No. 1 events. P0335 Knock Sensor 'A' Circuit Performance Fault: Engine cranking or running, then the ECM did not detect any Knock Sensor 'A' signals during the test period. P0335 Crankshaft Position Sensor Circuit Fault: P0101 P0102 P0103 P0341 P0342 P0343 not set, engine cranking with CMP sensor transitioning, MAF sensor input more than 3 g/sec. then the ECM determined that no signals were detected from the CKP sensor, condition present for 8 seconds. P0335 DI Crankshaft Position Sensor Circuit Fault: Engine speed at 500-4000 rpm, then the ECM detected the DI CKP low-resolution angle was outside a range from -21° deviation to plus +51° deviation or received no CKP sensor signals. P0335 Crankshaft Position Sensor Circuit Fault: Engine speed over 700 rpm, then the ECM did not detect any CKP sensor pulses during a period of two engine revolutions. P0335 Crankshaft Position Sensor Circuit Fault: Engine cranking, and the ECM did not detect any CKP sensor inputs for 5 seconds, or the ECM did not detect any CKP sensor signals with the engine running at 600 rpm or higher. Note The ECM must also sense the crank signal on connector 3 terminal 11 in order to run this diagnostic. P0335 Crankshaft Position Sensor Circuit Fault: No ECT or TP sensor codes set, engine running, then the ECM detected that the CKP (7X) resynchroniation counter incremented to over 15 counts, condition met within 256 seconds. P0335 Crankshaft Position Sensor Circuit Fault: Engine cranking or running, the ECM has detected CMP sensor pulses, then the ECM did not detect any CKP sensor pulses. MULTIPLE INSTANCES OF THE SAME CODE: P0336 Crankshaft Position Performance Fault: P0341 not set, engine running, then the ECM detected that the Crankshaft Position (CKP) resynchroniation counter changed (counted) more than 15 times during 4 minutes and 15 seconds. P0336 Crankshaft Reference 24X Circuit Engine running with 3X signals received for 3 seconds, then the ECM detected that the ratio of 24X to 3X REF pulses did not equal 6 (8 on X), or the ratio of 3X REF pulses to CMP pulses equaled 6, condition met for 30 seconds on X. P0336 DI Crankshaft Position Sensor Performance Engine speed 500-4000 rpm, then the ECM detected the DI CKP low-resolution angle was out of range (-10° deviation to +7° degree deviation) while it was within the range of -21° to +51° deviation. P0336 Crankshaft Reference 18X Circuit Fault: Engine running with 3X REF signals received, then the ECM detected the ratio of 18X REF pulses to 3X REF pulses did not equal 61, or the ratio of 3X REF pulses to CMP pulses equaled 61, all Fault: met for 290 of 300 test samples. P0336 Crankshaft Reference Sensor Performance Engine cranking, more than 4 CMP sensor signals detected, and the ECM did not detect any CKP sensor signals for 500 ms. P0336 Crankshaft Position Sensor 'A' Performance Fault: P0385 not set, engine cranking or running, then the ECM detected an intermittent loss of the CKP Sensor 'A' signal. P0336 Crankshaft Position Sensor Circuit Fault: Engine running, then the ECM determined that the CKP sensor signal was out-of-range, condition met for less than 1 second. P0336 Crankshaft Reference 18X Circuit Fault: Engine running with 3X REF signals present, then the ECM detected that it did not receive any 18X reference pulses in one engine cycle (720 degrees of crankshaft revolution). P0336 DI Crankshaft Position Sensor Performance Fault: Engine speed 500-4000 rpm, then the ECM detected the DI CKP low-resolution angle was out of range (-10° deviation to +7° degree deviation) while it was within the range of -21° to +51° deviation. P0336 Crankshaft Reference Sensor Performance Fault: Engine cranking, number of camshaft signals detected more than four (4), and then the ECM did not detect any CKP sensor signals, condition met for 3 seconds (for 500 ms on 7.4L V8) or longer. P0336 (27)Crankshaft Reference Sensor Performance Fault: Engine cranking, number of camshaft signals detected was more than 4, and the ECM did not detect any CKP sensor signals, Fault: met for 500 ms. P0336 Crankshaft Reference 24X Circuit Fault: Engine running, 3X signals received for 3 seconds, then the ECM detected that the ratio of 24X to 3X CKP REF pulses was invalid. P0336 Crankshaft Position Sensor Performance Fault: Engine cranking or running, then the ECM counted less than 58 CKP sensor teeth before it counted a signature tooth occurrence. P0336 Crankshaft Position Sensor Performance Fault: Engine in crank or run mode, and the ECM detected that the CKP sensor signals were out-of-range, condition met for 2 seconds. P0336 Crankshaft Reference Signal Performance Fault: No TP sensor codes set, P0125 not set, engine runtime over 10 seconds, engine speed below 2600 rpm or above 3600, ECT sensor input over 149°F, throttle angle over 9.8%, then the ECM detected that the time between CKP reference pulses was too long or too short, or it detected extra reference pulses during the test. MULTIPLE INSTANCES OF THE SAME CODE: P0337 CKP Sensor Circuit Low Frequency Fault: Engine speed below 4000 rpm, MAF input over 5 g/sec, then the ECM detected that the CKP REF duty cycle was over 50%, or that the ratio of High REF to Low REF pulses was less than 1.8. P0337 CKP Sensor Circuit Low Duty Cycle Fault: Engine speed below 4000 rpm, MAF input over 5 g/sec, then the ECM detected that the CKP REF duty cycle was less than a calibrated percentage. P0337 CKP Sensor Circuit Low Frequency Fault: Engine speed below 4000 rpm, MAF input over 5 g/sec, then the ECM detected the CKP Reference duty cycle was over 50%, or that the ratio of High REF to Low REF pulses was less than 1.8. P0337 CKP Sensor Circuit Low Duty Cycle Fault: Engine speed below 4000 rpm, MAF input 5 g/sec or higher, then the ECM detected that the CKP REF duty cycle was less than a calibrated percentage. P0337 CKP Sensor Circuit Low Frequency Fault: Engine speed below 4000 rpm, MAF input 5 g/sec or higher, then the ECM detected that the CKP REF duty cycle was over 50%, or that the ratio of High REF to Low REF pulses was less than 1.8. P0337 CKP Sensor Circuit Low Duty Cycle Fault: Engine speed below 4000 rpm, MAF input 5 g/sec or higher, then the ECM detected that the CKP REF duty cycle was less than a calibrated percentage. MULTIPLE INSTANCES OF THE SAME CODE: P0338 CKP Sensor Circuit High Frequency Fault: Engine speed under 4000 rpm, MAF input over 5 g/sec, then the ECM detected that the CKP REF duty cycle was over 50%, or that the ratio of High REF to Low REF pulses was over 5.66. P0338 CKP Sensor Circuit High Duty Cycle Fault: Engine speed below 4000 rpm, MAF input 5 g/sec or higher, then the ECM detected that the CKP signal duty cycle was more than a calibrated percentage. P0338 CKP Sensor Circuit High Frequency Fault: Engine speed below 4000 rpm, MAF input over 5 g/sec, and then the ECM detected a Crankshaft Position Reference (CKP REF) duty cycle of over 50%, or a ratio of High REF to Low REF pulses of over 5.66. P0338 CKP Sensor Circuit High Duty Cycle Fault: Engine speed less than 4000 rpm, MAF input 5 g/sec or higher, then the ECM detected that the CKP signal duty cycle was more than a calibrated percentage. P0338 CKP Sensor Circuit High Frequency Fault: Engine speed below 4000 rpm, MAF input over 5 g/sec, then the ECM detected that the CKP REF duty cycle was over 50%, or that the ratio of High REF to Low REF pulses was over 5.66. P0338 CKP Sensor Circuit High Duty Cycle Fault: Engine speed below 4000 rpm, MAF input over 5 g/sec, then the ECM detected that the CKP REF duty cycle was more than a calibrated percentage. P0339 CKP Sensor Circuit Intermittent Fault: Engine running, MAF input 5 g/sec or more, and the ECM detected that the measured change in engine speed was 1000 rpm or more during a 125 ms period, or that the measured change in engine speed was 0 rpm during a period when four or more CMP sensor pulses occurred over a period of 2-3 seconds. P0339 CKP Sensor Circuit Intermittent Fault: Engine running, MAF input 5 g/sec or more, and the ECM detected that the measured change in engine speed was 1000 rpm or more during a 125 ms period, or that the measured change in engine speed was 0 rpm during a period when four or more CMP sensor pulses occurred over a period of 2-3 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0340 CMP Sensor Circuit Fault: Engine running, then the ECM determined that it did not receive any CMP sensor pulses at least once in 2 crankshaft revolutions. P0340 CMP Sensor Circuit Fault: No CKP sensor codes set, engine speed above 400 rpm, and then the ECM determined that it did not receive any CKP sensor pulses. P0340 IC Module Cam Reference Circuit No Frequency Fault: P0322 not set, engine speed under 1600 rpm, 4X Reference pulses received, then the ECM did not receive a Cam Reference pulse, condition met for 5.3 seconds. P0340 CMP Sensor Circuit Fault: Engine running, then the ECM determined that it did not receive any CMP reference pulses at least once in every two revolutions of the crankshaft. P0340 CMP Sensor Circuit Fault: Engine running, then the ECM detected that the CMP active counter did not increment (count up) during the CMP sensor test. P0340 CMP Sensor Circuit Fault: Engine cranking for 2 seconds, then the ECM did not detect a CMP sensor pulse, condition met for 2 seconds. P0340 CMP Sensor Circuit Fault: Engine cranking for 2 seconds, and the ECM did not detect any CMP sensor pulses, or the ECM did not detect any CMP sensor pulses with the engine speed at 600 rpm or higher. P0340 CMP Sensor Circuit Fault: Engine running, then the ECM determined that it did not receive CMP sensor pulses at least once in 2 crankshaft revolutions. P0340 CMP Sensor Circuit Fault: Engine speed over 20 rpm, then the ECM detected that the CMP sensor signal was missing for at least five engine cycles. P0340 Cylinder Detect Signal Missing Fault: Engine cranking for 5-10 seconds, or engine running, then the ECM detected that the voltage level on the Cylinder 4 signal circuit was not pulled low (this is the Camshaft signal pulse). MULTIPLE INSTANCES OF THE SAME CODE: P0341 CMP Sensor Performance Fault: Engine running, then the ECM detected more than 15 CMP sensor resynchroniations during a period of 4 minutes and 16 seconds. P0341 CMP Sensor Performance Fault: Engine running with 3X REF pulses received, then the ECM detected the ratio of 3X REF pulses to CMP pulses did not equal 61, or the ratio of 3X REF pulses to 24X REF pulses equaled 61 (81 on X) for 80 occurrences (for 30 seconds on X). P0341 CMP Sensor Performance Fault: Engine running, then the ECM detected the ratio of fuel control CKP pulses to CMP pulses did not equal 61, condition met 10 times during any ignition cycle (this fault may be intermittent). P0341 CMP Sensor Performance Fault: Engine running with 3X signals received, then the ECM detected that the ratio of 3X to CMP sensor pulses did not equal 61, or that the ratio of 3X REF pulses to 18X REF pulses equaled 61, condition met for 290 of 300 events (number depends on engine). P0341 CMP Sensor Performance Fault: Engine running, then the ECM did not detect a CMP sensor pulse at the correct time interval once during 2 crankshaft revolutions. P0341 CMP Sensor Performance Fault: Engine running under - rpm, then the ECM detected that an incorrect correlation existed between the CMP and CKP signals. P0341 CMP Sensor Performance Fault: Engine running at less than 4000 rpm, then the ECM detected a miss-match in the CKP and CMP sensor signals for 10 seconds. P0341 CMP Sensor Performance Fault: Engine running with 3X signals received, then the ECM did not receive any CMP sensor pulses for one engine revolution. P0341 CMP Sensor Performance Fault: Engine running, then the ECM determined that it did not detect any CMP sensor pulse at the correct time interval once during two revolutions of the crankshaft. P0341 CMP Sensor Performance Fault: Engine running, then the ECM detected more than 15 CMP sensor resynchroniation events occurred within 4 minutes, 16 seconds. P0341 CMP Sensor Performance Fault: Engine running, then the ECM did not detect a CMP sensor pulse at the correct time interval once during 2 crankshaft revolutions. P0341 CMP Sensor Performance Fault: Engine running with 3X signals received, then the ECM did not detect any CMP sensor reference pulses. P0341 CMP Sensor Performance Fault: Engine running, then the ECM determined that the CMP signals were not rational. P0341 CMP Sensor Performance Fault: Engine running at less than 4000 rpm, then the ECM detected a miss-match in the CKP and CMP sensor signals for 10 seconds. P0342 CMP Sensor Circuit Low Input Fault: Engine running, then the ECM detected the CMP Sensor activity counter did not increment. P0341 Cylinder Detect Signal Error Fault: Engine cranking (5-10 seconds) or engine running, then the ECM detected more than one Cylinder No. 4 firing pulse on the El sense circuit for each 14 CKP pulses received (incorrect CMP sequence). MULTIPLE INSTANCES OF THE SAME CODE: P0342 CMP Sensor Circuit Low Input Fault: Engine running, then ECM detected that no CMP sensor signals were present for 5 seconds. P0342 CMP Sensor Circuit Low Input Fault: Engine running at below 4000 rpm, then the ECM detected that the CMP sensor signal was in a low state when it should have been in a high state (voltage state), condition met for five seconds. P0342 CMP Sensor Circuit Low Input Fault: Engine running, then the ECM determined that the CMP Activity Counter was not incrementing. P0342 CMP Sensor Circuit Low Input Fault: Engine running at below 4000 rpm, then the ECM detected that the CMP sensor signal was in a low state when it should have been in a high state (voltage state), condition met for 1.5 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0343 CMP Sensor Circuit High Input Fault: Engine running at below 4000 rpm, then the ECM detected that the CMP sensor signal was in a high state when it should have been in a low state (voltage state), condition met for five seconds. P0343 CMP Sensor Circuit High Input Fault: Engine running under 4000 rpm, and the ECM detected the CMP sensor pulse was high when it should have been low for 1 second. P0351-353 Ignition Coil 1, 2, 3, 4, 5, 6, 7 or 8 Control Circuit Fault: Engine speed over 400 rpm, then the ECM detected that a short to ground in the IC driver control circuit for Ignition Coil Control Circuit 1-8, Fault: met for less than one second during the test period. P0351-358 Ignition Coil Control 1, 2, 3, 4, 5, 5, 7 or 8 Circuit Fault: Engine running, then the ECM detected a short to ground, open circuit or short to power present on the Ignition Control Circuit 1-8, Fault: met for 1 second during the test period. P0351-358 Ignition Coil Control 1, 2, 3, 4, 5, 5, 7 or 8 Circuit Fault: Engine running, then the ECM detected a short to ground, open circuit or short to power present on the Ignition Control Circuit 1-8, condition met for less than 1 second during the test period. P0351 Ignition Control Circuit (Cylinders I & 4) Fault: Engine cranking for at least 2 seconds or engine running, then the ECM detected an electrical fault (a short-to-ground, open circuit or short to power) on Circuit 423 (IC 1 & 4). P0352 Ignition Control Circuit (Cylinders 2 & 3) Fault: Engine cranking for at least 2 seconds or engine running, then the ECM detected an electrical fault (a short-to-ground, open circuit or short to power) on Circuit 404 (IC 2 & 3). P0370 Timing Reference, High-Resolution Fault: Engine running, then the ECM detected that a number of high resolution signals were missing for every 8 CMP reference signals. P0371 ICM 24X Reference Circuit Too Many Pulses Fault: DTC P1376 not set, at least one CMP pulse received in last 250 ms, engine speed 496-3500 rpm, number of CMP edges since key on at 7 or more, eight 4X pulses received between CMP pulses, then the ECM detected more than 49 24X pulses between CMP pulses, or detected that the last 24X variance was 49 along with 49 current 24X pulses received. P0371 ICM 24X Reference Circuit Too Many Pulses Fault: DTC P1376 not set, at least one CAM pulse received in last 250 ms, engine speed 496-3500 rpm, number of CAM edges since key on was 7 or more, eight 4X pulses received between CAM pulses, then the ECM detected more than 49 24X pulses between CAM pulses, or detected that the last 24X variance was 49 and the number of 24X pulses received was 49. P0372 DI High-resolution Signal Circuit Fault: Engine running, then the ECM detected that DI Low-resolution signals were received without receiving any DI high-resolution signals, condition met for less than 1 second. P0372 ICM 24X Reference Circuit Missing Pulses Fault: P1376 not set, at least one CMP pulse received in last 250 ms, engine speed 496-3500 rpm, number of CMP edges since key on at 7 or higher, eight 4X REF pulses seen between CMP pulses, then the ECM received less than (47) 24X pulses between CMP pulses, or (47) 24X pulses twice in a row. P0372 DI High-resolution Signal Circuit Fault: Engine running, then the ECM detected DI Low-resolution signals were present without any DI high-resolution signals present. P0372 ICM 24X Reference Circuit Missing Pulses Fault: DTC P1376 not set, at least one CAM pulse received in last 250 ms, engine speed 496-3500 rpm, number of CAM edges detected since key on was 7 or higher, eight 4X REF pulses detected between CMP pulses, then the ECM received less than 47 24X pulses between CAM pulses, or 47 24X pulses twice in a row. P0380 Glow Plug Performance Fault: Glow Plugs commanded on, then the ECM detected the voltage at the plugs was less than 4.Ov, or with Glow Plugs commanded off, then the ECM detected that the voltage at the plugs was more than 4.Ov, or with the Glow Plugs commanded on, the ECM detected more than a 2v difference between the system and plug voltage. P0385 Crankshaft Position Sensor 'B' Circuit Fault: Engine speed over 20 rpm, MAF sensor input more than 2.5 g/sec, then the ECM detected a loss of the CKP Sensor 'B' signal. P0386 Crankshaft Position Sensor 'B' Performance Fault: P0335 not set, engine cranking or running with engine speed more than 20 rpm, no Camshaft faults present, ECM has switched to Time 'B' mode, then the ECM detected an intermittent loss of the CKP Sensor 'B' signal occurred during the test period. MULTIPLE INSTANCES OF THE SAME CODE: P0400 EGR System Performance Fault: P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0601 P0718 P0724 not set, ECT input above 81°F, engine speed 500-900 rpm, BAROMETRIC input above 95 kPa, MAP input below 24 kPa, IAC counts steady, no A/C Clutch, Brake switch or TCC transitions, VSS input above 14 mph, then during these Decel Mode Test Fault: (throttle angle below 1%, not in DFCO, EGR duty cycle at 0%, then with the EGR solenoid enabled), the ECM detected that the change in the MAP sensor input was less than a predetermined amount stored in memory. P0400 EGR System Performance Fault: No ECM codes set, ECT over 81°F, engine speed 500-900 rpm, BAROMETRIC over 95 kPa, VSS over 14 mph, MAP under 24 kPa, IAC counts steady, no A/C Clutch, Brake Switch or TCC transitions, then during the Decel Mode Test, with throttle angle below 1%, not in DFCO, EGR duty cycle at 0%, MAP steady in range, then the ECM detected the expected MAP change was less than a set amount with the EGR on during the EGR Monitor diagnostic test. P0400 EGR System Fault Fault: Engine running, ECT input from 176-230°F, IAT from 14-122°F, BARO input over 75 kPa, engine running at 400-4000 rpm, VSS over 20 mph, fuel level over 25%, then the ECM detected an intake pressure change under these driving Fault: (EGR valve open) Engine speed from 1500-4000 rpm Change in engine speed less than 150 rpm in 25 milliseconds VSS input over 20 mph Change in throttle position less than 0.244° in 16 firing events EGR valve commanded Closed as the intake pressure difference diagnostic runs for 2 seconds (once per drive cycle) The intake pressure difference diagnostic indicated that EGR flow is more than expected or less than expected. Or there was a change in intake pressure during deceleration under these Fault: (EGR valve Closed) Initial engine speed from 3500-4000 rpm Initial vehicle speed greater than 40 mph After 290 seconds from engine startup in Fuel Shutoff mode The EGR valve was commanded Open as the intake pressure difference diagnostic ran for 2 seconds (once per drive cycle). The difference in intake pressure diagnostic indicated that EGR flow was more than expected or less than expected. MULTIPLE INSTANCES OF THE SAME CODE: P0401 EGR Flow Insufficient Fault: No ECM codes set, ECT sensor input over 176°F, engine speed 900-1700 rpm (engine speed 100-2200 on MIT or 900-1800 on A/T on T), VSS over 20 mph, BAROMETRIC input over 60 kPa, MAP input from 13-32 kPa, IAC change less than 4-5 counts, throttle angle under 1 %, then the ECM detected that the Decel Exponentially Weighted Moving Average was over +2 kPa (should be under -3). P0401 EGR Flow Insufficient Fault: No CKP, ECT, EGR, IAC, IAT, Injector, MAF, MAP, Misfire, TP or VSS codes set, ECT sensor input more than 167°F, throttle angle under 1 %, system voltage 10-18v, engine speed 950-1300 rpm (1275-1450 on X), MAP input from 15-75% and steady, BAROMETRIC input over 70 kPa, IAC position steady, no change in A/C Clutch and Transmission range status, vehicle speed over 35 mph during deceleration, then the ECM detected that MAP changes monitored during the test indicated insufficient EGR Flow. Note The vehicle will need to be driven above 80 km/h (50 mph), and then allowed to decelerate. When the vehicle is decelerating while meeting all of the criteria listed above, the ECM will enable the test to run. When the test runs, the desired EGR parameter and the actual EGR position will appear on the Scan Tool as a change from 0 to a calibrated value above 0. P0401 EGR Flow Insufficient Fault: No ECT, EGR Pintle, IAC, IAT, MAP, Misfire, TP or VSS codes set, ECT input over 158°F, BAROMETRIC input over 70 kPa, VSS input over 27 mph, IAC change under 8 counts, Transmission and A/C clutch status unchanged, EGR and throttle angle change less than 1 %, engine speed from 800-1600 for A/T (from 900-1900 for M!T), change in the MAP input less than 0.5 kPa, DFCO not active on A/T or no change in DFCO on MIT models, then the ECM detected that the change in the MAP input during the EGR Flow Test was less than a calibrated value, Fault: met for over 2 seconds. P0401 EGR Flow Insufficient Fault: No ECM codes set, cold startup completed and the ECM detected that the intake manifold pressure was higher than the value calculated by the ECM during the EGR test (EGR solenoid on). P0401 EGR Flow Insufficient Fault: No CKP, ECT, EGR Pintle Position, IAC, IAT, Injector, MAF, MAP, Misfire, TP or VSS codes set, ECT input more than 167°F, throttle angle less than 1% (deceleration), MAP input steady at 15-70 kPa, engine speed 1000-1400 rpm, IAC valve steady, BAROMETRIC input more than 70 kPa, VSS input over 37 mph during deceleration, A/C and TR switch status stable, then the ECM detected insufficient EGR flow through changes in the MAP sensor input during the flow test. Note The vehicle will need to be driven above 50 mph, and then allowed to decelerate while meeting the criteria listed above. The ECM will enable the test and as it runs the Actual and Desired EGR position should change from 0 to a calibrated value above 0. P0402 Excessive EGR Flow Detected Fault: No ECM codes set, then the ECM detected that intake manifold pressure was more than a value calculated by ECM during the EGR test with the EGR system commanded on. P0401 EGR Insufficient Flow Detected Fault: No ECT, EGR, IAT, IAC, MAF, TP and VSS codes set, ECT input over 150°F, engine speed 1350- rpm, VSS input over 30 mph at closed throttle in high gear, then the ECM detected the EGR flow was restricted by comparing a calculated value to the engine speed versus the BAROMETRIC Pressure during a deceleration period. MULTIPLE INSTANCES OF THE SAME CODE: P0403 EGR Solenoid Control Circuit Fault: No ECM codes set, ECT over 180°F, engine speed over 600 rpm, then the ECM detected the commanded state of the EGR solenoid driver did not match the EGR solenoid control circuit Actual state, all Fault: met for 25.5 seconds. P0403 EGR Solenoid Control Circuit Fault: Engine running, system voltage from 10-16v, then the ECM detected an electrical fault in the driver control circuit for the EGR valve, condition met for more than 20 seconds. P0403 Exhaust Gas Recirculation Solenoid Circuit Fault: Engine running, system voltage from 11-16v, then the ECM detected an improper voltage in the EGR ignition feed, EGR solenoid control circuit or the EGR solenoid ground circuit, Fault: met for 10 seconds during the test period. P0403 EGR Solenoid Control Circuit Fault: Engine cranking or running, then the ECM detected an electrical fault in the EGR solenoid control circuit during a 20 second period. P0403 EGR Solenoid Control Circuit Fault: No ECM codes set, ECT input over 180°F, engine speed over 600 rpm, then the ECM detected that the Actual and Commanded state of the EGR solenoid control circuit did not match for 25.5 seconds. P0403 EGR Solenoid Control Circuit Fault: Engine cranking or running, system voltage from 10-18v, then the ECM detected an electrical fault in the EGR solenoid control VIN Mcircuit, Fault: met for more than 20 seconds. P0403 EGR Solenoid Control Circuit Fault: Engine cranking or running, system voltage from 9-18v, then the ECM detected an electrical fault in the EGR solenoid control circuit, Fault: met for more than 20 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0404 EGR Open Position Performance Fault: Engine running with system voltage from 10-16v, then the ECM detected that the Desired EGR position did not equal 0%, or that the Actual EGR position varied by more than 15% from the Desired position, condition met for more than 20 seconds. P0404 EGR Open Position Performance Fault: Engine running, system voltage over 11v, then the ECM detected that the difference between the Actual EGR position and the Desired EGR position was more than 10% for 10 seconds. P0404 Exhaust Gas Recirculation System P0405 and P0406 codes set, engine speed over 506 rpm, then the ECM detected during the EGR Monitor test that the Desired EGR Pressure minus the Measured EGR Pressure was more than 50 kPa, all Fault: met for 25.5 seconds. P0404 EGR Open Position Performance Fault: No CKP, ECT, IAT, Idle Speed, Injector, MAF, MAP, TP or VSS codes set, engine running with system voltage over 11v, the EGR system disabled, then the ECM detected that the Actual EGR position was 20% less than the Desired EGR position. P0404 EGR Open Position Performance Fault: Engine running with system voltage over 11.7v, EGR Desired position more than 0%, then the ECM detected that the difference between the Desired EGR position and the Actual EGR position and the failure counter were both more than a calibrated value. P0404 EGR Open Position Performance Fault: Engine running, system voltage 10-16v, and the ECM detected the Desired EGR position did not equal 0% or the Actual EGR position varied by over 15% from Desired EGR position for 20 seconds. P0404 EGR Open Position Performance Fault: Engine running, engine vacuum more than 49.7 kPa, TFT sensor input more than 193.4°F, maximum change in Desired Pintle position during this test less than 25 counts if system voltage is more than 12 volts or 10 counts if the system voltage is less than 12 volts, then with the system voltage 12v or less, the ECM detected that the Linear EGR Pintle position error was greater than 75 counts, or with system voltage more than 12v, that the Linear EGR Pintle position error was greater than 25 counts. P0404 EGR Open Position Performance Fault: Engine running, system voltage over 9v, then the ECM detected the difference between the Actual EGR position and the Desired EGR position was over 10% (over 20% on 7.4L) for 10 seconds. P0404 EGR Open Position Performance Fault: Engine running, then the ECM detected the difference between Actual and Desired EGR position was over 15% for 20 seconds. P0404 EGR Open Position Performance Fault: No ECT, EVAP, IAC, IAT, MAP or TP sensor codes set, P0300, P1336 and P1404 not active, engine running, Desired EGR Position over 0%, then the ECM detected the difference between Actual and Desired EGR position was over 10% for 10 seconds. P0404 EGR Open Position Performance Fault: Key on or engine running, system voltage from 9-18v, then the ECM detected that the difference between the Actual EGR position and the Desired EGR position was more than 15% for 20 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0405 EGR Position Sensor Circuit Low Input Fault: Engine running, system voltage at 10-16v, then the ECM detected that the Actual EGR (Feedback) sensor signal was less than 0.14v, condition met for more than 20 seconds. P0405 EGR Position Sensor Circuit Low Input Fault: Engine running, EGR Position sensor VREF from 4-5v, then the ECM detected that the EGR Feedback signal voltage was less than 0.12v, condition met for 10 seconds. P0405 EGR Control BAROMETRIC Sensor Circuit Low Input Fault: ECM detected an Actual EGR sensor value of less than or equal to 0.24v (15 kPa), all Fault: met for 2 seconds. Note This sensor is used to measure the vacuum in the EGR valve vacuum line. P0405 EGR Position Sensor Circuit Low Input Fault: Key on or engine running, system voltage over 11v, then the ECM detected that the EGR Pintle Position sensor voltage was less than O.1v Fault: met for at least two seconds during the test period. P0405 EGR Sensor Circuit Low Input Fault: Engine running, system voltage over 11.7v, then the ECM detected the EGR Feedback signal indicated below 0.14v at least one time. P0405 EGR Sensor Circuit Low Input Fault: Engine running, system voltage over 10v, then the ECM detected the EGR Feedback indicated 0.14v once in a 20 second period. P0405 EGR Position Sensor Circuit Low Input Fault: Engine running, system voltage 11-16v, then the ECM detected that the closed EGR Pintle Position sensor voltage was 0.32v or less, or the EGR pintle closed position voltage was 3.69v or more. P0405 EGR Position Sensor Circuit Low Input Fault: Engine running, system voltage 10-18v, then the ECM detected that the EGR Feedback signal voltage was less than 0.3v, condition met for 20 seconds. P0405 EGR Sensor Circuit Low Input Fault: Engine running, system voltage over 10v, then the ECM detected the EGR Feedback indicated 0.14v once in a 20 second period. P0405 EGR Position Sensor Circuit Low Input Fault: Engine running, system voltage over 11v, then the ECM detected that the EGR Feedback signal was less than 0.12v for 10 seconds. P0405 EGR Position Sensor Circuit Low Input Fault: Engine running, system voltage over 11v, then the ECM detected that the EGR Feedback signal was less than 0.12v for 20 seconds. P0406 EGR Control BAROMETRIC Sensor Circuit High Input Fault: Engine running, then the ECM detected that the Actual EGR BARO Sensor value was more than or equal to 85 kPa and the Desired EGR was less than or equal to 60 kPa for 2 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0410 Secondary Air System Performance Fault: P0107 P0108 P0116 P0117 P0118 P0133 P0135P0153 P0155 P0171 P0172 P0174 and P0175 not set, then during Test 1: Engine runtime 2 seconds, IAT input over 50°F, engine speed over 600 rpm, engine load less than 6.6%, maximum MAF input below 26 g/sec, throttle angle below 1 %, then the ECM detected that the H02S-11 signal remained above 222 mVolts for 19 seconds with the ECT input below 167°F at startup, or that it remained above 700 mVolts for 19 seconds with the ECT input above 167°F at startup. Test 2: Engine runtime 200 seconds, ECT input from 140-239°F, IAT input over 50°F, engine speed over 600 rpm, engine load below 5.5%, MAF input below 17 g/sec, ECT input from below 1 %, the ECM detected the H02S-11 signal remained above 222 mVolts for 1.5 seconds and SHRTFT did not go above a predetermined amount. P0410 Secondary Air System Performance Fault: No ECT, EVAP, Fuel Trim, H02S, IAC, IAT, MAF, Misfire or TP sensor codes set, engine runtime over 90 seconds, engine speed above 850 rpm, system voltage at 10-16v, system in closed loop, ECT input from 149-230°F, MAF input less than 8.1 g/sec, Fuel system in Decel Control Cell, then the ECM detected the H02S-11 signal remained out-of-range, and the SHRTFT value did not increase a calibrated amount, both Fault: occurred 3 times. P0410 Secondary Air System Performance Fault: No AIR, CMP, ECT, Fuel Trim, H02S, IAT, MAF, MAP, Misfire, System Voltage, TP or VSS codes set, MAF input less than 25 g/sec, IAT input more than 36°F, TWC Over Temperature not active, engine load under 34%, ECT input from 176-225°F, A/F ratio at 14.7, Decel Fuel Cutoff and P/E mode not active, engine speed over 500 rpm, engine runtime in closed loop over 20 seconds, Fuel Trim counts from 124-132, system voltage over 11.7v, then the ECM detected that the H02S signal was more than 222 mVolts for more than one second with the AIR pump enabled. P0410 Secondary AIR System Performance Fault: Passive Tests Engine speed over 600 rpm, throttle is steady, engine load less than 80%, system voltage over 10.5v, MAF input under 35 g/sec, A/F ratio more than 12.51, ECT input from 41°F-230°F, Power Enrichment and Decel Fuel Cutoff not active, then during the operation of the AIR pumps, the ECM detected that the H02S signal for both fuel control sensors was above 250 mv, Fault: met for 20 seconds, or that the H02S signal was 200 mVolts for 7 seconds after a hot restart, or with the AIR pumps off, that the H02S signal for both fuel control sensors was below 740 mVolts for 20 seconds or for 7 seconds on a hot start, Fault: met 3 times. Active Tests Engine speed over 600 rpm, throttle is steady, engine load less than 80%, system voltage over 10.5v, MAF input under 35 g/sec, Fuel system in closed loop, EVAP Purge active, ECT input more than 154°F, then the ECM detected that the H02S signal for both fuel control sensors was over 250 mVolts for three occurrences. P0410 Secondary AIR System Performance Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0171P0175 P0200 P0300 P0335 P0336 P0351P0358 P0443 P0500 P0502 P0503, P1258 and H02S not set, engine running at over 900 rpm and in closed loop for over 15 seconds, system voltage more than 11.7v, ECT sensor input from 151°F -255°F, MAF airflow at 22 g/sec, engine load less than 42.5%, not operating in Power Enrichment or Decel Fuel Cutoff mode, fuel control in SHRTFT cells 1, 2 and 5, then the ECM detected that the H02S voltage did not go below 222 mVolts for I second with the AIR pump turned on during closed loop operation, and that short term fuel trim did not change. P0410 Secondary Air System Performance Fault: No ECM codes set, then the ECM enabled these AIR system tests Test 1: Engine runtime over 2 seconds, ECT input below 239°F, A/F ratio over 131, throttle angle stable, engine load below 6.6%, airflow under 26 g/sec, H02S-11 bias voltage 365-513 mv, and the ECM detected that the H02S-11 signal was under 400 mv. Test 2: Engine runtime over 200 seconds, ECT input from 140-239°F, IAT input over 50°F, engine speed over 600 rpm, engine load less than 5.5%, maximum airflow less than 17 g/sec, then the ECM detected that the H02S-11 signal remained above 222 mVolts for 1.5 seconds, and that the SHRTFT was less than a predetermined amount. - P0410 Secondary Air System Performance Fault: No AIR, CMP, ECT, EGR, Fuel Trim, H02S, IAC, IAT, MAF, MAP, Misfire, System Voltage, TP Transmission or VSS codes set, MAF input less than 25 g/sec (100 g/sec on 7.4L), IAT input more than 36°F, TWC Over-Temperature not active, engine load under 34%, ECT input from 176-225°F, A/F ratio at 14.7, Decel Fuel Cutoff and P/E mode not active, engine speed over 500 rpm, engine runtime in closed loop over 20 seconds, Fuel Trim counts from 124-132, system voltage over 10v, then the ECM detected that the H02S-12 signal was more than 222 mVolts with the AIR pump enabled, or that the change in SHRTFT was less than a calibrated amount. - P410 Secondary AIR System Performance Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0171 P0172 P0300 P0412 P0418 P0442 P0443 and P1441 not set, and no H02S codes set, engine runtime more than 2 seconds, then the ECM detected the 02S-11 signal changed less than 60 mv, or the H02S-11 signal was above 225 mVolts for 1.5 seconds during a period when the air pump was active for 2.5 seconds, test failed 3 consecutive times. - P410 Secondary Air System Performance Fault: No CMP, ECT, Fuel Trim, H02S, IAC, IAT, MAF, MAP, Misfire, TP or VSS codes set, MAF input less than 25 g/sec, IAT input more Truckthan 36°F, engine load less than 34%, engine load under 34%, ECT input from 176-230°F, commanded A/F ratio at 14.7, TWC Over Temperature Protection, Decel Fuel Cutoff and P/E mode not active, engine speed over 500 rpm, engine runtime in closed loop over 20 seconds, SHRTFT counts from 124-132, system voltage over 11.7v, then the ECM detected that the H02S signal was more than 222 mVolts for over 1.3 seconds or the SHRTFT value changed more than 20% with the AIR pump on during Closed Loop mode. - P410 Secondary AIR System Performance Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117, P0118 P0121 P0122 P0123 P0171 P0172 P0300 P0412 P0418 P0442 P0443 and P1441 not set, no H02S codes set, engine runtime over 2 seconds, then the H02S-11 signal changed less than 6 mVolts or was higher than 1.5v during the 2.5 seconds the (3.4L)Air pump was on, then the ECM detected that the H02S-11 signal remained above 300 mVolts (Passive Test) or above 150 mVolts (Active Test) for a calibrated period of time, and that the SHRTFT value did not increase a calibrated amount on 3 consecutive tests. - P410 Secondary AIR System Constant Flow Detected Fault: No ECM codes set, running in closed loop, EVAP Purge disabled, IAT input over 41.5°F, ECT input over 65.8°F, VSS at 0 mph, then the ECM detected that SHRTFT was beyond -25% for 20 seconds. P0410 Secondary Air System Performance Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0171P0175 P0200 P0300 P0335 P0336 P0351P0358 P0440 P0442 P0443 P0446 P0449, P1120, P1220, P1221, P1258 and P1441 not set and no H02S codes set, engine runtime over 2 seconds, fuel level from 12.5-87.5%, Decel Fuel Shutoff, Power Enrichment and TWC Overtemperature not active, A/F ratio at 14.71, maximum airflow at 25 g/sec, engine load less than 34%, system voltage over 11.7v, in closed loop for over 15 seconds, engine speed over 718 rpm, ECT input from 176 230°F, IAT input more than 28.4°F, Fuel system operating in fuel trim cells 1, 2, 3, 4, 5 or 6, then the ECM detected the H02S-11 signal did not go below 222 mVolts for 1.3 seconds with the AIR pump enabled during closed loop operation, or that the SHRTFT value did not change more than a predetermined value with the AIR pump turned on during closed loop operation. P0411 Secondary Air System Fault: P0110 P0115 P0116 P0130 P0131 P0132 P0134 P0150 P0151 P0152 P0154 P0171 P0172 P0174 P0175 P0300 P0306 P0412 P0418 P0440 P0442 P0443 P0446 and P0455 not set, ECT sensor input from 65.8°F-221°F, IAT sensor input from 41°F-104°F, engine at idle speed, AIR system not active, VSS input at 0 mph, then the ECM detected reduced Secondary airflow. MULTIPLE INSTANCES OF THE SAME CODE: P0412 Secondary Air System Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the AIR solenoid driver did not match, condition met for at least 5 seconds. P0412 Secondary Air System Control Circuit Fault: Engine speed over 400 rpm, system voltage from 10-18v, the ECM driver transitions from "on" to "off" or from "off' to "on", then the ECM detected a short to ground, an open circuit or short to power on the solenoid control circuit, condition met for over 30 seconds. P0412 Secondary Air System Solenoid Control (Bank 1) Fault: Engine running, system voltage at 8-16v, then the ECM detected an incorrect signal on the AIR solenoid circuit for 10 seconds. P0412 Secondary Air System Solenoid Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the AIR solenoid driver did not match, condition met for at least 5 seconds. P0412 Secondary Air System Solenoid Control Circuit Fault: Engine speed over 600 rpm, then the ECM detected that the Actual and Commanded state of the AIR solenoid driver did not match during the AIR Test, Fault: met for at least 5 seconds. P0412 Secondary AIR Solenoid Valve Control Circuit Fault: Engine speed over 80 rpm, system voltage at 10-18v, ECM driver transitions from "on" to "off" or from "off' to "on", then the ECM detected an open circuit, a short to ground or a short to power on the AIR solenoid valve control circuit. P0412 Secondary AIR Solenoid Valve Control Circuit Fault: Engine speed over 40 rpm, system voltage from 7.5-15v, Fault: met for 300 ms, then the ECM detected an open circuit, a short to ground or a short to power on the AIR control circuit. P0412 Secondary Air System Solenoid Control Circuit Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0171 P0172 P0300 P0412 P0418 P0442 P0443 and P1441 not set, no H02S codes set, engine runtime over 2 seconds, then the ECM detected that the H02S-11 signal changed less than 0.06v or was above 225 mVolts for 1.8 seconds during a 3 second period of AIR pump operation. Note The Secondary Air System must fail 3 consecutive tests. P0412 Secondary Air System Control Circuit Fault: Engine speed over 400 rpm, system voltage from 10-18v, then the ECM detected that the Actual state and Commanded state of the AIR solenoid driver did not match, condition met for 10 seconds. P0418 Secondary Air System Pump Relay Control Circuit Fault: Engine speed over 400 rpm, system voltage from 10-18v, the ECM driver transitions from "on" to "off" or from "off' to "on", then the ECM detected a short to ground, an open circuit or short to power on the relay control circuit, condition met for over 30 seconds. P0418 Secondary Air Pump Relay Control (Bank 1) Fault: Engine running, system voltage at 8-16v, then the ECM detected an improper signal on the AIR relay control circuit for 10 seconds. P0418 Secondary Air Pump Relay Control (Bank 1) Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Pump Relay driver did not match, Fault: met for at least 5 seconds. P0418 Secondary Air Pump Relay Control (Bank 1) Fault: Engine speed over 400 rpm, system voltage from 9-18v, the ECM driver transitioned from "on" to "off" or from "off" to "on", then the ECM detected a short to ground, open circuit or short to power in the Air Pump Relay control circuit, condition met for 30 seconds. P0418 Secondary Air Pump Relay Control (Bank 1) Fault: Engine speed over 40 rpm, system voltage from 8-15v, Fault: met for 300 ms, then the ECM detected a short to ground, an open circuit or a short to power on the AIR Solenoid Relay control circuit. P0418 Secondary Air Pump Relay Control (Bank 1) Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Pump Relay driver did not match, Fault: met for at least 5 seconds. P0419 Secondary Air Pump Relay Control (Bank 2) Fault: Engine running, system voltage at 8-16v, then the ECM detected an improper signal on the AIR relay control circuit for 10 seconds. P0420 Catalyst System Bank 1 Low Efficiency Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0131 P0132 P0133 P0134 P0137 P0138 P0140 P0141 P0171 P0172 P0201 P0202 P0203 P0204 P0440 P0442 P0502 P0506 P0507 P0562 P0563 P0601, P1133, P1171, P1336 and P1441 not set, engine runtime over 510 seconds since the throttle moved, BAROMETRIC input more than 72 kPa, system in closed loop, vehicle driven at over 1200 rpm for over 60 seconds, system voltage over 9v, then with the vehicle stopped Engine idle speed at less than 150 rpm from Desired idle speed. Vehicle selector in Drive for A/T or Neutral for MIT models. Throttle position at 0%, ECT sensor input between 167-257°F. IAT sensor input between -4°F and 176°F. Short term fuel trim between 93 (-28%) and 163 (+28%). TWC temperature more than 653°F on 2.2L 14 or 950°F on 2.4L The H02S-12 response time was too quick for 30 seconds. Note The vehicle must be driven until the converter temperature is 122°F above the condition in order to run this trouble code test. P0420 Catalyst System Bank 1 Low Efficiency Fault: No CKP, CMP, ECT EGR, EVAP, Fuel Trim, H02S, IAC, IAT, Injector, MAF, MAP, Misfire, TP or VSS codes set, engine runtime over 10 minutes, ECT input from 169-255°F, BAROMETRIC input above 75 kPa, in closed loop, IAT input from -4° F to 212°F, system voltage from 10-18v, then with the catalyst fully warmed up, the ECM determined the catalyst oxygen storage capacity was too low. Note Each time the engine is started the test can run up to 18 times. After the 10 minute runtime, and before the test runs the first time, the engine must run an additional 5 minutes between 1500 and 2500 RPM. For any additional tests on the same key cycle, the engine must be between 1500 and 2500 RPM for 1 minute. Test Instructions To activate the test, return to idle and place vehicle in Drive (depress the clutch pedal for manual). Then within 60 seconds, the A/F ratio will go below 14. 1 for up to 8 seconds (and may go to above 15.3 for up to 10 seconds). Use a Scan Tool to monitor P0420 to determine if the trip passed or failed. P0422 Catalyst System Low Efficiency (Bank 1) Fault: P0100 P0131 P0132 P0134 P0135 P0136 P0138 P0139 P0140 P0141 P0150 P0151 P0152 P0154 P0155 P0156 P0158 P0159 P0160 P0161 P0171 P0172 P0174 P0175 P0300P0306 P0440 P0442 P0443 P0446 P0455, P1120 or P1220 not set, in closed loop, TWC temperature above 716°F, engine load at 8-12%, engine speed 1400-2200 rpm, then the ECM detected the Bank I catalyst efficiency was too far degraded. P0430 Catalyst System Bank 2 Low Efficiency Fault: No AIR, CKP, CMP, ECT, EVAP, IAT, MAF, MAP, H02S (Left Bank), Misfire, Fuel Trim (Left Bank), Injector, TP, Transmission or VSS codes set, in closed loop, ECT input over 124°F, VSS from 20-75 mph, throttle angle over 2%, engine speed below 3500 rpm, MAP input 25-80 kPa, MAF input 15-100 g/sec, then the ECM determined the Bank 2 Catalyst had degraded below its threshold. P0430 Catalyst System Bank 2 Low Efficiency Fault: No AIR, CMP, ECT, EGR, EVAP, Fuel Trim, H02S, IAC, IAT, IC, MAF, MAP, Misfire, Transmission, TP or VSS codes set, engine speed over 1000 rpm for 32 seconds on an A/T model (over 40 seconds for a M/T model) since last idle period, engine runtime over 6 minutes with LONGFT stable, predicted TWC catalyst temperature over 734°F, MAF input over 15 g/sec, ECT input from 167-244°F, IAT input from 19-167°F, BAROMETRIC input at 72 kPa or more, engine running in closed loop, engine idling for less than 2 minutes, Actual idle speed within 100-125 rpm of the Desired idle speed, then the ECM determined that the oxygen storage capacity of the Bank 2 Catalyst was degraded below a calibrated threshold. P0430 Catalyst System Low Efficiency (Bank 2) Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0171 P0172 P0174 P0175 P0200 P0230 P0300 P0325 P0327 P0332 P0335 P0336 P0341 P0342 P0343 P0351P0358 P0401 P0404 P0405 P0410 P0412 P0418 P0440 P0442 P0443 P0446 P0449 P0500 P0704 P0801 P0803, P1258, P1336, P1404, P1415, P1416, P1441 and H02S DTCs not set, engine runtime over 400 seconds, ECT sensor input from 176°F to 248°F, IAT sensor input from 5°F to 167°F, BAROMETRIC sensor input over 74 kPa, MAF input from 12-32 g/sec, engine speed over 900 rpm for 25 seconds on A/T models or over 900 rpm for 22 seconds on M/T models, the engine running in closed loop, then the ECM detected the catalyst had degraded below a calibrated threshold. P0430 Catalyst System Low Efficiency (Bank 2) Fault: No ECM codes set, running in closed loop, ECT over 124°F, VSS from 20-75 mph, throttle angle over 2%, engine speed under 3500 rpm, MAP 25-80 kPa, Airflow at 15-100 g/sec, then ECM detected Bank 2 Converter had degraded below a calibrated threshold. P0430 Catalyst System Low Efficiency (Bank 2) Fault: No AIR, CMP, ECT, EGR, EVAP, Fuel Trim, H02S, IAC, IAT, IC, MAF, MAP, Misfire, Transmission, TP or VSS codes set, engine speed over 1000 rpm for 32 seconds on an AR model (over 40 seconds for a MIT model) since last idle period, engine runtime over 6 minutes with LONGFT stable, predicted TWC catalyst temperature over 840°F, MAF input from 15-50 g/sec, ECT input more than 167°F, IAT input more than 16°F, BAROMETRIC input at 72 kPa or more, engine running in closed loop, engine idling for less than 2 minutes, Actual idle speed within 100-125 rpm of the Desired idle speed, any change in engine load less than 10% and throttle angle more than 2% on 7.4L V8, VSS input from 22-85 mph, then the ECM determined the oxygen storage capacity of the Bank 2 Catalyst had degraded below a calibrated threshold in memory. P0430 Catalyst System Low Efficiency (Bank 2) Fault: No AIR, CKP, CMP, IAT, IC, MAF, MAP, ECT, TP, EVAP, Right Bank H02S, Misfire, Right Bank Fuel Trim, Injector, VSS, Engine Protection, or Transmission codes set, engine running with closed loop fuel control enabled, ECT input more than 167°F, IAT input from 19-167°F, BARO input more than 74 kPa (10.7 psi), airflow from 14-40 g/sec, MAP input from 25-80 kPa, VSS input under 85 mph, engine speed over 850 RPM for a minimum of 17 seconds for MIT models and for over 27 seconds for A/T models since the end of last idle period, then the ECM determined the Bank 2 oxygen storage capacity was degraded below an acceptable level. P0432 Catalyst System Low Efficiency (Bank 2) Fault: P0100 P0131 P0132 P0134 P0135 P0136 P0138 P0139 P0140 P0141 P0150 P0151 P0152 P0154 P0155 P0156 P0158 P0159 P0160 P0161 P0171 P0172 P0174 P0175 P0300P0306 P0440 P0442 P0443 P0446 P0455, P1120 or P1220 not set, engine running in closed loop, calculated TWC temperature greater than 716°F, engine load between 8-12%, engine speed from 1400-2200, then the ECM determined that the Bank 2 catalyst had degraded below a calibrated threshold. MULTIPLE INSTANCES OF THE SAME CODE: P0440 EVAP System No Flow During Purge Fault: No ECT, FTP, IAT, MAP or TP sensor codes set P0443 P0449 not active, ECT and IAT sensor inputs from 39-86°F at startup, ECT input not more than 14°F higher than the IAT input at startup, IAT input not more than 7°F higher than ECT at startup, fuel level from 15-85%, system voltage from 10-18v, BAROMETRIC input over 75 kPa, IAT input less than 86°F at start of test, VSS input below 80 mph, then the ECM detected that the EVAP system was unable to achieve enough vacuum during the diagnostic test. P0440 EVAP System Fault Fault: No ECT, FTP, IAT, MAP or TP sensor codes set, P0443 P0449 not active, system voltage 10-18v, BAROMETRIC input more than 75 kPa, ECT and IAT sensor inputs from 39-884°F at startup, IAT input not more than 7°F higher than the ECT input at startup, ECT input not more than 14°F higher than the IAT input at startup, fuel tank level between 15-85%,IAT input less than 86°F, VSS input less than 80 mph, then the ECM detected that the EVAP system was unable to achieve or maintain vacuum during the test period. P0440 EVAP System Performance Fault: No ECT, FTP, IAT, MAP or TP sensor codes set, P0443 P0449 not active, system voltage from 10-18v, engine runtime over 2 minutes, BAROMETRIC input over 75 kPa, startup ECT and IAT inputs from 39-86°F, ECT input not over 41°F higher than AT at startup, IAT input not over 7°F higher than ECT input at startup, IAT input less than 86°F, fuel level from 15-85%, throttle angle from 9-35%, VSS input under 80 mph, then the ECM detected that the EVAP was unable to achieve enough vacuum during the diagnostic test. P0440 EVAP System Performance Fault: Engine runtime over 20 minutes, ECT input more than 158°F, fuel tank level from 25-75%, then the ECM detected that the Fuel Tank Pressure sensor indicated that no pressure increase occurred in the fuel tank during Fault: when the pressure should increase. P0440 EVAP System Fault Fault: No ECT, Fuel Tank Pressure, H02S, IAT, MAP, ECM Memory, TP or VSS codes set, BAROMETRIC input more than 75 kPa, ECT and IAT inputs from 41-84°F, startup ECT less than 14°F higher than the IAT value, or startup IAT less than 3°F higher than the ECT value, fuel tank level 15-85%, throttle position at 7-35%, VSS input less than 70 mph, Purge solenoid active, then the ECM was unable to detect any vacuum in the EVAP system during the diagnostic test. P0440 EVAP System Fault Fault: P0100 P0115 P0116 P0130P0161 P0300P0306 P0443 P0446 P0450 P0500 P0506 P0507 P0560, P1120 or P1220, engine at idle in closed loop, system voltage over 11v, ECT input at startup from 17°F and 167°F, IAT input from 17°F-122°F, engine load less than 30%, MAF input less than 7.5 g/sec, engine runtime over 17 minutes, VSS at 0 mph, voltage over 11 volts, Secondary AIR system inactive and AIR system test not running, SHRTFT at start of test more than -5%, then the ECM detected that the pressure in the fuel tank was less than 3.2" Hg (-6 mm Hg) with the purge solenoid open, or that the EVAP vapor pressure did not bleed off or bleeds off too slowly when the vent solenoid is commanded open, or that the pressure in the fuel tank was less than -5.6" H2O (-10 mm Hg), any condition met for 15 seconds. P0440 EVAP System Performance Fault: No ECT, H02S, IAT, MAP, TP or VSS codes set, P0125 not active, system voltage 10-17v, fuel level 12.5-87%, ECT and IAT sensor inputs from 39-86°F, cold startup temperature of the ECT and IAT inputs within 35°F of each other if the IAT is more than the ECT, or within 46°F if the ECT is more than the IAT, BAROMETRIC input over 73 kPa, then the ECM did not detect a vacuum level more than a calibrated value over a specified amount of time in the test. P0440 EVAP Canister Purge Solenoid Circuit Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0453 P0453 P0500 not set, engine runtime over 2 seconds, BAROMETRIC input over 80.8 kPa, IAT input 41-90°F, ECT and IAT within 10°F of each other at startup, fuel level at 15-85%, then the ECM detected that a vacuum threshold of 8" H2O was not reached with an abort time that equaled 600 seconds and 240 seconds to finish. P0441 EVAP System No Flow During Purge Fault: No ODM, IAT, MAP or TP sensor codes set, ECT input under 235°F, IAT sensor input from 32°F to 158°F, difference between ECT/IAT less than 212°F (IAT under 158°F, ECT/IAT difference less than 18°F on X), engine speed at 900-5000 rpm, throttle angle at 2.5-40%, EVAP PWM over 75% (over 85% on X), then ECM detected the vacuum switch was closed for 3 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0441 EVAP System No Flow During Purge Fault: No ECM codes set, ECT input below 239°F, IAT over 37°F, throttle angle at 2-50%, engine speed 800-1000 rpm, BARO input over 77 kPa, MAP input from 33-77 kPa, Purge PWM more than 60%, then the ECM detected a low voltage signal from the EVAP vacuum switch with Purge commanded on, condition met for 5 seconds. P0441 EVAP System No Flow During Purge Fault: No ECT, IAT, MAF, MAP or TP sensor codes set, BAROMETRIC input over 70 kPa, ECT input less than 237°F, IAT from 50-158°F, difference between ECT and IAT inputs less than 18°F, engine speed from 600-5000 rpm, Purge duty cycle over 85%, then the ECM detected the EVAP Vacuum switch was closed (12v signal) for 4 seconds. P0441 EVAP System No Flow During Purge Fault: No EGR, IAT, MAP or TP sensor codes set, ECT input less than 226°F, [AT input less than 198°F with the startup IAT input over 0°F, BAROMETRIC input over 75 kPa, change in ECT/IAT at 198°F or less, Purge duty cycle 90% or more, MAP input at 20-80 kPa, throttle angle at 5-60%, engine speed 800-3000 rpm for 5 seconds and the ECM detected the vacuum switch was closed with purge enabled. P0441 EVAP System No Flow During Purge Fault: No ECM codes set, key on IAT over -13°F, IAT remains below 211°F, key on ECT at least 50°F under previous key off input, ECT under 257°F, throttle angle at 0-81.6°, EVAP duty cycle at least 60 85%, engine speed at 500-6375 rpm, MAP at 20-60 kPa, BAROMETRIC at least 72 kPa, engine vacuum at least 12 kPa, then ECM detected that the EVAP Vacuum Switch was closed for 9 seconds that it did not open for 2 seconds during the EVAP diagnostic test. P0441 EVAP System No Flow During Purge Fault: 1995-1997No ECM codes set, IAT input at 50-158°F, ECT input under 237°F, the difference between ECT and IAT under 18°F, BARO input over 73 kPa, engine speed at 900-5000 rpm, throttle angle at 2.5-40%, Purge PWM over 85%, then the ECM detected that the EVAP vacuum switch was closed for 2 seconds with Purge enabled. P0441 EVAP System No Flow During Purge Fault: No ECM codes set, ECT input under 239°F, IAT input over 37°F, throttle angle at 2-50%, engine speed at 300-800 rpm, BAROMETRIC input more than 77 kPa, Purge PWM over 60%, then the ECM detected during the EVAP test that the EVAP switch voltage was low. P0441 EVAP System No Flow During Purge Fault: P0101 P0102 P0103 P0107 P0108 P0122 P0123 P0401 P0506 P0507, P1441, P1508, P1509 and P1645 not set, IAT input at key on more than -13°F, IAT input remains below 211°F, ECT input at key on at least 50°F less than under previous key off input, ECT input less than 257°F, MAP input from 20.2-60 kPa, throttle angle at 0-81.6 degrees, engine speed 500-6375 rpm, BAROMETRIC input at least 72 kPa, engine vacuum at least 12 kPa, EVAP duty cycle at least 85%, then the ECM detected the EVAP Vacuum switch was closed for 9 seconds and that it was not open for 2 seconds at any point during the EVAP diagnostic test. P0441 EVAP System No Flow During Purge Fault: No EGR, IAT, MAP or TP sensor codes set, ECT input less than 226°F, IAT input less than 198°F with the startup IAT input over 0°F, BAROMETRIC input over 75 kPa, change in ECT/IAT at 198°F or less, Purge duty cycle 90% or more, MAP input at 20-80 kPa, throttle angle at 5-60%, engine speed 800-3000 rpm for 5 seconds and the ECM detected the vacuum switch was closed with purge enabled. P0441 EVAP System No Flow During Purge Fault: Engine runtime over 20 minutes, ECT input more than 158°F, fuel tank level from 25-75%, then the ECM detected that the pressure indicated in the EVAP canister did not drop when the EVAP Purge valve was active (on), or that the pressure indicated in the EVAP canister remained low when compared to atmospheric pressure with the EVAP canister purge solenoid valve inactive (off). P0441 EVAP System Continuous Open Purge Flow Fault: No ECM codes set, ECT input under 226°F, BAROMETRIC input over 75 kPa, ECT and IAT input equal to 198°F or less, Purge duty cycle 90% or more, MAP input at 20-80 kPa, throttle angle from 5-60%, and the ECM detected the vacuum switch was open for 4 seconds. P0441 EVAP System Incorrect Purge Flow Fault: No ECM codes set, engine at idle in closed loop, ECT input at startup from 17°F-212°F, IAT over 17°F, engine load less than 2.7%, MAF less than 7.5 g/sec, fuel tank pressure under 4" H2O, VSS at 0 mph, engine runtime over 16 minutes, system voltage over 11v, AIR Test inactive, SHRTFT at start of test exceeds -5%, then the ECM that the EVAP system failed the EVAP test. P0441 EVAP System No Flow During Purge Fault: P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0443, P1120, P1220, P1221 or P1441not set, P0440 has passed, ECT input under 239°F, IAT input more than 37°F at startup, ECT input less than 176°F, difference between ECT and IAT sensor inputs less than 19°F at startup, engine speed 800-1000 rpm, throttle angle from 8-60%, MAP input over 15 kPa, BAROMETRIC input over 75 kPa, Purge PWM over 90%, then the ECM detected a low voltage from the EVAP vacuum switch with Purge for 5 seconds. P0442 EVAP System Small Leak Detected Fault: No ECT, FTP, IAT, MAP or TP sensor codes set P0443 P0449 not active, ECT and [AT sensor inputs from 39-86°F at startup, ECT input not more than 14°F higher than the IAT input at startup, IAT input not more than 7°F higher than ECT at startup, fuel level from 15-85%, system voltage from 10-18v, BAROMETRIC input over 75 kPa, IAT input less than 86°F at start of test, VSS input below 80 mph, then the ECM detected that the EVAP system was unable to achieve enough vacuum during the diagnostic test. MULTIPLE INSTANCES OF THE SAME CODE: P0442 EVAP System Small Leak Detected Fault: No ECT, H02S, IAT, MAP, TP or VSS codes set, P0125 not active, system voltage from 10-17v, fuel level from 12.5-87%, ECT and IAT sensor inputs from 39-86°F, the difference between the cold startup temperature of the ECT and IAT inputs less than 35°F when the IAT is more than the ECT, or 46°F when the ECT is more than the IAT, BAROMETRIC input over 72 kPa, throttle position under 75%, VSS less than 65 mph, change in fuel tank vacuum less than 0.6" of H2O or change in fuel level less than 8%, fuel tank vacuum level constant above a calibrated value for a few seconds, then the ECM detected the EVAP system was unable to hold the proper vacuum. P0442 EVAP System Small Leak Detected Fault: No ECT, Fuel Tank Pressure, H02S, IAT, MAP, ECM Memory, TP or VSS codes set, BAROMETRIC input more than 75 kPa, startup ECT and IAT sensor inputs from 41-84°F and the startup ECT less than 14°F more than the AT value, or the startup IAT less than 3°F more than the startup ECT, fuel tank level from 15-85%, throttle position from 7-35%, VSS input less than 70 mph, Purge solenoid enabled, then the ECM detected that the EVAP system was unable to detect a calibrated amount of vacuum in the system in the test. P0442 EVAP System Small Leak Detected No ECT, H02S, IAT, MAP, TP or VSS codes set, P0125 not active, system voltage from 10-17v, fuel level from 12.5-87%, ECT and IAT sensor inputs from 39-86°F, the difference between the cold startup temperature of the ECT and IAT inputs less than 35°F when the IAT is more than the ECT, or 46°F when the ECT is more than the IAT, BARO input over 72 kPa, throttle position under 75%, VSS less than 65 mph, change in fuel tank vacuum less than 0.6" of H2O or change in fuel level less than 8%, fuel tank vacuum level constant above a calibrated value for a certain number of seconds, then the ECM detected that the EVAP system was unable to hold a specified vacuum level for a calibrated number of seconds. P0442 EVAP System Small Leak Detected P0100 P0115 P0116 P0130P0161 P0300P0306 P0443 P0446 P0450 P0500 P0506 P0507 P0560, P1120 or P1220 not set, engine at idle in closed loop, ECT input at startup at 17°F 212°F, IAT input at 17°F-167°F, engine load less than 30%, MAF input less than 7.5 g/sec, system voltage over 11 volts, VSS input at 0 mph, engine runtime over 17 minutes, Secondary AIR system inactive and AIR system test not running, SHRTFT at start of test more than -5%, then the ECM detected that the vacuum in the EVAP system decayed at too fast a rate during the EVAP test. P0442 EVAP System Small Leak Detected Fault: P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0420 P0430 P0500 P0502 P0503 P0562 P0563 P01120, P1122 and P1221 not set, and no H02S codes set, fuel level from 15-85%, ECT and IAT sensor inputs from 39-86°F and the startup ECT and IAT inputs are with 9°F of each other, BAROMETRIC sensor input over 75 kPa, TP sensor angle less than 75% and VSS input under 70 mph during the Weak Vacuum Test, then the ECM detected the vacuum level in the EVAP system decayed at too fast a rate. Note This trouble code does not report a first failed test. A first fail of this code will show a Scan Tool status as "Not Run". Use the Scan Tool data display parameter of EVAP Test Result to determine if this code has failed or passed in this ignition cycle. P0442 EVAP System Small Leak Detected Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0125 P0453 P0453 and P0500 not set, engine runtime over 2 seconds, BAROMETRIC input over 80.8 kPa, IAT input 41-90°F, ECT and IAT within 10°F of each other at startup, fuel level at 15-85%, then the ECM detected the vacuum decay slope was more than a specified level. Note The decay slope is proportional to the current fuel level. MULTIPLE INSTANCES OF THE SAME CODE: P0443 EVAP Canister Purge Solenoid Control Circuit Engine speed over 600 rpm, then the ECM detected that the Actual and Commanded state of the driver control circuit for the solenoid did not match, condition met for 2.5 seconds. P0443 EVAP Canister Purge Solenoid Control Circuit Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the driver control circuit that controls the EVAP Purge valve, condition met for at least 30 seconds. P0443 EVAP Solenoid Valve 1 Control Circuit Fault: Engine running, system voltage from 8-16v, then the ECM detected an improper voltage level on the EVAP Solenoid Valve I driver control circuit, Fault: met for at least 10 seconds. P0443 EVAP Canister Purge Solenoid Control Circuit Fault: Engine speed over 600 rpm, system voltage from 6-18v, then the ECM detected the Actual and Commanded state of the solenoid driver control circuit did not match for 5 seconds during the test. P0443 EVAP Purge Solenoid Control Circuit Fault: Key on or engine running, then the ECM detected an improper voltage level on the purge solenoid control circuit for 30 seconds. P0443 EVAP Canister Purge Solenoid Control Circuit Fault: Engine speed over 600 rpm, then ECM detected the commanded state of the EVAP solenoid driver and the control circuit state of the EVAP solenoid driver did not match for 25 seconds in the test. P0443 EVAP Purge Solenoid Control Circuit Fault: Key on or engine running, system voltage 10-18v, then the ECM detected an improper voltage level on the EVAP purge solenoid control circuit, condition met for 30 seconds. P0443 EVAP System Incorrect Purge Flow No ECM codes set, ECT from 158-230°F, IAT at 14-122°F, BAROMETRIC over 75 kPa, Fuel Tank Level from 25-75%, engine idling in closed loop, then the ECM detected engine speed change occurred between the EVAP purge off and purge on (duty cycle over 50%) at idle, all Fault: met for 20 seconds. P0443 EVAP Purge Solenoid Control Circuit Fault: Key on or engine running, system voltage from 9-18v, then the ECM detected an improper voltage level on the EVAP Purge solenoid control circuit, condition met for at least 30 seconds. P0443 EVAP Purge Valve Control Circuit Fault: Engine speed over 40 rpm, system voltage from 7.5-15v, then the ECM detected a short to ground, an open circuit or a short to power in the Purge control circuit during the test periods. P0443 EVAP Canister Purge Solenoid Control Circuit Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected the Actual and Commanded state of the solenoid driver control circuit did not match, condition met for 5 seconds. P0443 EVAP Canister Purge Solenoid Control Circuit Engine running, then the ECM detected that the Purge solenoid control circuit was over 0.3v with the solenoid commanded on, or it was less than 7.Ov with the solenoid commanded off. MULTIPLE INSTANCES OF THE SAME CODE: P0446 EVAP Canister Purge Vent Blocked Fault: Engine running, all Fault: for P0440 and P0442 met and passed, then the ECM detected that the fuel tank pressure was less than -10" H2O, condition met for up to 30 seconds. P0446 EVAP Vent System Performance Fault: No ECT, H02S, IAT, MAP, TP and VSS codes set, P0125 not active, system voltage from 10-17v, BARO input over 72 kPa, fuel Level from 12.5-87%, ECT and IAT inputs from 39°Fto 86°F, startup ECT and IAT inputs within 35°F of each other if IAT input is higher or within 46°F of each other if ECT input is higher, change in fuel tank vacuum less than 0.6" H2O or the change in fuel level less than 8%, fuel tank vacuum above a calibrated value for a few seconds, then the ECM did not detect any drop in system vacuum over a calibrated number of seconds with the vent solenoid open. P0446 EVAP Vent Solenoid Valve Control Circuit Fault: No ECT, EVAP Vent Control, EVAP Purge Control, Fuel Tank Level Sensor, Fuel Tank Pressure Sensor, [AT, MAP and TP Sensor codes set, system voltage from 10-18v, BAROMETRIC sensor input more than 72 kPa, Fuel Level sensor indicates that the fuel level is from 15-85%, ECT sensor input from 35.6°F- 86°F, startup ECT and IAT inputs within 57.56°F of each other, or the Diagnostic Test for P0442 has passed and the ECM is commanding normal purge operation (vent valve open, purge valve at the ECM set duty cycle, then the ECM detected that the EVAP system vacuum was more than-2.98 kPa (-12" H2O of vacuum) during the test period. P0446 EVAP Vent System Performance Fault: No IAT, MAP, ODM or TP sensor codes set, all Fault: for P0440 and P0442 met and passed, startup ECT and IAT sensor inputs from 40-86°F and within 14°F at startup, BAROMETRIC sensor over 75 kPa, fuel tank level from 15-85%, then the ECM detected that the fuel tank pressure was less than -10" H2O for 30 seconds. P0446 EVAP Vent System Performance Fault: P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0420 P0430 P0452 P0453 P0500 P0502 P0503 P0562 P0563 and no H02S codes set, Fault: for P0440 and P0442 met and passed, system voltage from 10-17v, ECT and IAT sensor inputs from 39-86°F and within 16°F of each other at startup, BAROMETRIC sensor over 75 kPa, fuel level indicates 15 85%, then the ECM detected that the EVAP vacuum decay level was more than a preset value with the Vent solenoid open for 2 seconds, or the vacuum level in the system was above a preset value with the Vent solenoid open in normal purge for 4 seconds. Note This trouble code does not report a first failed test. A first fail of this code will show the Scan Tool status as "Not Run". P0446 EVAP Vent System Performance Fault: 1998-99 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0131 P0132 P0133 P0134 P0135 P0141 P0151 P0152 P0153 P0154 P0452 P0453 P0503, P1111, P1112, P1114, P1115, P1133 and P1153 not set, system voltage 10-17v, BAROMETRIC sensor input over 71.78 kPa, fuel level from 10-89.8% of full capacity for at least 3.2 seconds continuously (this time limit is required because fuel sloshing within the tank may cause the fuel level indication to vary outside the fuel level limits), ECT and IAT sensor inputs from 35.6-86°F and within 57.56°F of each other at engine startup, then the ECM detected that the EVAP system failed to vent vacuum at a quick enough rate or that there was too much vacuum present at the start of the EVAP diagnostic test. Note This code does not report a first failed test. A first fail of this code will have a Scan Tool status as Not Run. Use the Scan Tool data display parameter of EVAP Test Result to determine if this code has failed or passed for the current ignition cycle. P0446 EVAP Vent System Performance Fault: No ECT, H02S, IAT, MAP, TP and VSS codes set, P0125 not active, system voltage from 10-17v, BAROMETRIC input over 72 kPa, fuel Level at 12.5-87%, ECT and IAT sensor inputs from 39-86°F, startup ECT and IAT inputs within 35°F of each other if IAT input is Whigher or within 46°F of each other if ECT input is higher, change in fuel tank vacuum less than 0.6" of H2O or the change in fuel level less than 8%, fuel tank vacuum remained above a set value for a few seconds, then the ECM did not detect any drop in EVAP system vacuum over a few seconds with the Vent solenoid open. MULTIPLE INSTANCES OF THE SAME CODE: P0449 EVAP Vent Solenoid Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Vent Control solenoid control circuit did not match for over 5 seconds. P0449 EVAP Vent Solenoid Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Vent Control solenoid control circuit did not match for over 5 seconds. P0449 EVAP Vent Solenoid Control Circuit Fault: Engine speed over 600 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Vent Control solenoid control circuit did not match for over 5 seconds. P0449 EVAP Vent Solenoid Control Circuit Fault: Engine speed over 600 rpm, then the ECM detected an improper voltage level on the Vent Control solenoid circuit for 30 seconds. P0449 EVAP Vent Solenoid Control Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the EVAP Vent Control solenoid control circuit, condition met for at least 30 seconds. P0449 EVAP Vent Solenoid Control Circuit Fault: Key on or engine running, system voltage from 9-18v, then the ECM detected an improper voltage level on the EVAP Vent Control solenoid circuit (to the Vent valve), condition met for 30 seconds. P0449 EVAP Vent Solenoid Control Circuit Fault: Engine running, then the ECM detected the EVAP Vent solenoid control circuit was over 0.3v with the solenoid commanded on, or it was less than 7.Ov with the solenoid commanded off. P0450 EVAP System Pressure Sensor Circuit Fault: Engine running, VSS input over 10 mph for one minute, fuel tank level from 25-75%, then the ECM detected the Fuel Tank Pressure sensor input was under 0.5v or over 4.8v for 500 ms in the test. P0450 Fuel Tank Pressure Sensor Circuit Fault: Engine runtime less than 10 seconds, then the ECM detected that the Fuel Tank Pressure (FTP) sensor input was less than 16.3" H2O, or that the FTP sensor input was more than 8.16" H2O, either condition met for 7 seconds. P0450 EVAP Fuel Tank Pressure Sensor Circuit Fault: Test 1: (Continuous Test) The ECM detected that pressure in the fuel tank was more than 12.05" H2O (22.50 mm Hg) for 5 seconds. Test 2: engine runtime from 2-10 seconds, engine at idle speed, ECT sensor input less than 91 °F, then the ECM detected a fuel tank vacuum of more than -11.80" H2O (22.03 mm Hg) for 5 seconds, or the ECM detected that the pressure in the fuel tank was more than 3.76" H2O (7 mm Hg) for 3 seconds during the test. P0451 EVAP System Pressure Sensor Circuit Fault: Engine running at idle speed for at least 2 minutes, ECT sensor input from 158-230°F, IAT input from 14-122°F, BAROMETRIC input more than 75 kPa, fuel tank level 25-75%, fuel tank pressure lower than a specified value after the completion of the EVAP system leakage check, then the ECM detected a fuel tank pressure that was lower than a specified value after completion of the EVAP leak check. P0451 Fuel Tank Pressure Sensor Circuit Fault: Engine at idle speed, VSS input at 0 mph, EVAP pressure Switching solenoid inactive (off), then the ECM detected that the Fuel Tank Pressure (FTP) sensor input switched rapidly from inside its specified range to outside its specified range. P0452 Fuel Tank Pressure Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Fuel Tank Pressure sensor signal was less than 0.1 v for 5 seconds. P0453 Fuel Tank Pressure Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the Fuel Tank Pressure sensor signal was more than 4.86v for 5 seconds. P0455 EVAP System Leak Detected Fault: Engine running, ECT input 158-230°F, IAT input from 14-122°F, BARO input more than 75 kPa, fuel tank level from 25-75%, then ECM detected a fuel tank pressure that was within a specified value, purge accumulation time more than 200 seconds. P0455 EVAP System Large Leak Detected Fault: P0100 P0115 P0116 P0130P0161 P0300P0306 P0443 P0446 P0450 P0500 P0506 P0507 P0560, P1120 or P1220 not set, engine in close loop at idle, startup ECT from 17°F-167°F, IAT input from 17°F-122°F, engine load below 30%, MAF input under 7.5 g/sec, fuel tank pressure under 4" H2O, VSS input at 0 mph, engine runtime over 17 minutes, system voltage over 11v, AIR test inactive, Air pump off, SHRTFT over -5%, then the ECM detected the EVAP system was unable or took too long to achieve vacuum. P0460 Fuel Level Sensor Performance Engine running, then ECM detected Fuel Level sensor inputs that indicated the fuel level did not change more than 1.6% (4 counts) in 120 miles (34 miles on ) and P1601 is set (some models). P0460 Fuel Level Sensor Performance Engine running, then ECM detected a Fuel Level sensor input that indicated the fuel level did not change over 1.6% in 120 miles. MULTIPLE INSTANCES OF THE SAME CODE: P0461 Tank Fuel Level Sensor Performance (Single Tank) Fault: Key on or engine running, fuel tank level from 15-85% full, then the ECM did not detect a decrease in the fuel level over a distance of 200 miles (320 Km). P0461 Fuel Level Sensor Performance (Dual Tank) Fault: Key on, fuel tank level Slosh Test and Main Test completed, fuel tank level data confirmed as valid, and the ECM determined that the fuel level signal was unchanged over a distance of 200 miles. P0461 Fuel Level Sensor Performance Fault: No VSS codes set, engine running, system voltage from 11-16v, vehicle speed over 3 mph, then the ECM detected that the Fuel Level sensor signal indicated that the tank volume did not change over a distance of 60 kilometers (37.5 miles) during the test period. P0461 Fuel Level Sensor Performance Fault: Engine running, 150 miles have been accumulated, then the ECM detected that the level in the fuel tank did not decrease by at least 3/4 gallon (3 liters) when the Fuel Level Sensor indicated a level of more than 9.1 gallons (34.4 liters) during the test period. P0461 Fuel Level Sensor Performance Fault: P0601 not set, engine running, VSS input over 3 mph, then the ECM detected that the fuel level did not change. P0461 Fuel Level Sensor Performance Fault: Key on or engine running, ECM has verified that the fuel tank level is from 15-85%, then the ECM did not detect a decrease in the fuel level over a distance of 200 miles (320 Km). P0461 Fuel Level Sensor Performance Fault: Key on or engine running, system voltage from 10-18v, then the ECM determined that the fuel level did not change more than 0.4v (1.6%) after the vehicle was driven over 120 miles. P0461 Fuel Level Sensor Performance Fault: Key on or engine running, then the ECM detected that the change in the fuel level from maximum to minimum was less than 1 gallon, although the amount of intake air calculated was over 660 kg. P0461 Fuel Level Sensor Performance Fault: Key on or engine running, system voltage from 11-16v, fuel tank level at 15-85%, then the ECM determined the fuel level did not change more than 1.6% (4 counts) over a distance of 120 miles. P0461 Fuel Level Sensor Performance Fault: Key on or engine running, fuel tank level confirmed at 15-85% full, then the ECM did not detect a decrease in the fuel level over a distance of 200 miles (320 Km). P0461 Fuel Level Sensor Performance Fault: Engine running, primary fuel tank is not full, 150 miles have been accumulated, then the ECM detected that the level in the left fuel tank moved by at least 4 gallons (1.1 liters), or with the left primary fuel tank full and the right secondary fuel tank near empty, the level in both fuel tanks did not change after traveling over 150 miles. Note If the secondary fuel tank is empty, the primary fuel level should decrease after 241 km (150 miles). P0461 Fuel Level Sensor Performance Fault: Engine running, fuel level from 15-85%, then the ECM detected a Fuel Level sensor input that indicated the fuel level changed less than 2% after traveling a distance of 30 miles. MULTIPLE INSTANCES OF THE SAME CODE: P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, system voltage from 10-16v, then the ECM was notified on the Class 2 Bus that the IPC had detected a Fuel Level sensor signal that was less than 0.4v for 10 seconds. P0462 D/TankFuel Level Sensor Low Input (Dual Tank) Fault: Key on or engine running, fuel tank level Slosh Test and Main Test completed, fuel tank level data confirmed as valid, then the ECM detected that the fuel level signal voltage was less than 0.39v, Fault: met for over 20 seconds P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, system voltage from 11-16v, then the ECM detected that the Fuel Level sensor signal indicated less than 0.5v, Fault: met for at least 10 seconds. P0462 Fuel Level Sensor Circuit Low Input Fault: P0601 not set, engine running, VSS input over 5 mph, then the ECM detected that the Fuel Level sensor signal was below normal operating range for a specific length of time. P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected a Fuel Level sensor signal of less than 0.39v for 20 seconds during the test. P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was less than 0.39v for 6 minutes in the test. P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was less than 0.39v for 6 minutes. P0462 Fuel Level Sensor Low Input Fault: Key on or engine running, system voltage 11-16v, then the ECM detected that the fuel level signal was less than 0.4v (3.5%), Fault: met for at least 10 seconds. P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was less than 3.5% for 25 seconds. P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected that the Fuel Level sensor signal was less than 3%, condition met for 10 seconds. P0462 Fuel Level Sensor Circuit Low Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was less than 0.39v for 10 seconds. P0462 Fuel Level Sensor Circuit Low Input Fault: Engine running, system voltage over 9v, then the ECM detected that the Fuel Level sensor input was less than 0.2v for 1 second. MULTIPLE INSTANCES OF THE SAME CODE: P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, system voltage from 10-16v, then the ECM was notified on the Class 2 Bus that the IPC had detected a Fuel Level sensor signal that was more than 3.Ov for 10 seconds. P0463 Fuel Level Sensor High Input (Single Tank) Fault: Key on or engine running, fuel tank level from 15-85% full, then the ECM detected that the fuel level signal voltage was more than 2.90v, Fault: met for over 20 seconds. P0463 D/TankFuel Level Sensor High Input (Dual Tank) Fault: Key on or engine running, fuel tank level Slosh Test and Main Test completed, fuel tank level data confirmed as valid, then the ECM detected that the fuel level signal voltage was more than 2.9Ov, Fault: met for over 20 seconds during the test period. P0463 Fuel Level Sensor Performance Fault: No VSS codes set, engine running, system voltage from 11-16v, vehicle speed over 5 mph, then the ECM detected that the Fuel Level sensor signal indicated that the tank volume did not change over a distance of 60 kilometers (37.5 miles) during the test period. P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was less than 2.90v for 6 minutes in the test. P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was more than 2.9v for 6 minutes. P0463 Fuel Level Sensor Circuit High Input Fault: P0601 not set, engine running, VSS input over 5 mph, then the ECM detected that the Fuel Level sensor signal was above normal operating range for a specific length of time. P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, fuel tank level Slosh Test and Main Test completed, fuel tank level data confirmed as valid, then the ECM detected that the fuel level signal voltage was more than 2.90v, Fault: met for over 20 seconds during the test period. P0463 Fuel Level Sensor Low Input Fault: Key on or engine running, system voltage 11-16v, then the ECM detected that the fuel level signal was more than 3.Ov (98%), Fault: met for at least 10 seconds. P0463 Fuel Level Sensor Circuit High Input Fault: Engine running, then the ECM detected that the Fuel Level sensor input was over a specified value for 500 ms in Voltage Range test. P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected that the Fuel Level sensor signal was more than 95%, condition met for 10 seconds. P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected that the Fuel Level sensor signal was more than 98% for 25 seconds. P0463 Fuel Level Sensor Circuit High Input Fault: Key on or engine running, then the ECM detected a Fuel Level sensor signal of more than 2.9v for 20 seconds. Note The ECM uses a "fuel remaining value" of 40% as a default for the EVAP diagnostic test when this fault is present. P0463 Fuel Level Sensor Circuit High Input Fault: Engine running, system voltage over 9v, then the ECM detected that the Fuel Level sensor input was more than 4.86v for 1 second. MULTIPLE INSTANCES OF THE SAME CODE: P0480 Cooling Fan Relay I Control Circuit Fault: Engine running, system voltage over 9.5v, then the ECM detected that the Commanded state of the Fan Relay driver did not match the Actual state of the Fan Relay control circuit for 6.25 seconds. P0480 Cooling Fan Relay 1 Control Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the CFAN 1 Relay control circuit, condition met for at least 30 seconds. P0480 Cooling Fan Relay 1 Control Circuit Fault: Engine speed over 400 rpm, system voltage from 8-18v, then the ECM detected an improper voltage level on the CFAN 1 Relay driver control circuit, Fault: met for ten seconds. P0480 Cooling Fan Relay 1 Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded states of the FAN control circuit did not match, condition met for 5 seconds. P0480 Cooling Fan Relay I Control Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the CFAN 1 Relay control circuit, condition met for at least 30 seconds. P0480 Cooling Fan Relay 1 Control Circuit Fault: Key on or engine running, ECT sensor input less than 199°F, then the ECM detected a low voltage condition on the Cooling Fan Relay 1 control terminal, condition met for 5 seconds. P0480 Cooling Fan Relay 1 Control Circuit Fault: Key on or engine running, system voltage from 9-18v, then the ECM detected an improper voltage on the Cooling Fan Relay 1 control circuit, condition met for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0481 Cooling Fan Relay 2 Control Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the CFAN 2 Relay control circuit, condition met for at least 30 seconds. P0481 Cooling Fan Relay 2 Control Circuit Fault: Engine speed over 400 rpm, system voltage from 8-18v, then the ECM detected an improper voltage level on the CFAN 2 Relay driver control circuit, Fault: met for ten seconds. P0481 Cooling Fan Relay 2-3 Control Circuit Fault: Key on or engine running, then the ECM detected an incorrect voltage level on the CFAN 2-3 Relay control circuit for 30 seconds. P0481 Cooling Fan Relay 2-3 Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded states of the CFAN 2 and 3 control circuit did not match, condition met for 5 seconds. P0481 Cooling Fan Relay 2 Control Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the CFAN 2 Relay control circuit, condition met for at least 30 seconds. P0481 Cooling Fan Relay 2 Control Circuit Fault: Key on, system voltage 9-18v, then the ECM detected an improper voltage on the CFAN Relay 2 control circuit for 30 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0500 Vehicle Speed Sensor Circuit Fault: No MAP sensor codes set, ECT over 140°F, engine speed from 1400-4400 rpm, throttle angle under 3%, MAP input under 20 kPa, then the ECM detected the VSS input indicated less than 1 mph during a deceleration period, condition met for 5 seconds. P0500 Vehicle Speed Sensor Circuit Fault: P0107 P0108 P0117 P0118 P0121 P0122 P0123 P0125 P0506 P0507 not set, engine speed over 1000 rpm, ECT input more than 95°F, throttle angle at 5-100%, MAP input from 40-99 kPa with A/C off, all Fault: met for 2 seconds, then the ECM detected that the vehicle speed was 0 mph for several seconds. P0500 Vehicle Speed Sensor Circuit Fault: Engine running with engine load and speed indicating the vehicle is in-gear, Fault: met for 2 seconds, then ECM detected a VSS input that indicated a speed of under 3 mph for over 20 seconds. P0500 Vehicle Speed Sensor Circuit No ECM codes set, engine speed over 1000 rpm, BAROMETRIC over 40 kPa (A/C off) or 45 kPa (A/C on), ECT over 32°F, throttle angle over 5%, engine load and acceleration indicate vehicle is in gear, then ECM detected a VSS input under 3 mph for 25 seconds. P0500 Vehicle Speed Sensor Circuit Fault: No MAP sensor codes set, ECT input more than 140°F, engine speed at 1400-4400 rpm, throttle position less than 3%, MAP input less than 20 kPa, then the ECM detected that the VSS input was less than 1 mph, condition met for 5 seconds during deceleration. P0500 Vehicle Speed Sensor Circuit Engine running in Fuel Cutoff mode, then the ECM did not detect Many VSS inputs present during Fuel Cutoff mode for 4 seconds. P0500 Vehicle Speed Sensor Circuit Fault: A/T Applications Engine speed equal to or more than 2350 rpm, Park Neutral switch off, throttle angle equal to or more than 13°, all engine parameters indicate the vehicle is moving, then the ECM did not detect any VSS signals. M/T Applications Engine speed between -5000 rpm, and then the ECM did not receive any VSS signals. P0500 Vehicle Speed Sensor Circuit Fault: No MAP sensor codes set, MAP input less than 20 kPa, ECT input more than 14U°F, engine speed 1400-4400 rpm, throttle angle at under 3%, Fault: met for 5 seconds, then ECM detected the VSS input indicated a speed less than 1 mph for 5 seconds. P0500 Vehicle Speed Sensor Circuit Performance Engine speed from 1800-2200 rpm, Decel Fuel Cutoff enabled, ECT sensor input more than 149°F, then the ECM detected that the VSS signal was less than 12 mph for one second in the test. P0500 Vehicle Speed Sensor Circuit Performance No ECM codes set, engine speed over 1000 rpm, BAROMETRIC over 40 kPa (A/C off) or 45 kPa (A/C on), ECT over 32°F, throttle angle over 5%, engine load and acceleration indicate vehicle is in gear, then ECM detected a VSS input under 3 mph for 25 seconds. P0500 Vehicle Speed Sensor Circuit Performance Engine speed at 1400-4000 rpm, MAP sensor input less than 0.5v (23 kPa or 3 psi) for over 5 seconds, gear selector not in Park or Neutral on A/T models, then the ECM did not receive any VSS signals. The resistance of the VSS is 800-1600 ohms. Note The ECM will calculate the vehicle speed using engine speed and MAP sensor signals, but the speedometer will not work. P0501 Vehicle Speed Sensor Circuit Performance Engine running, brakes not applied, then the ECM detected the HVSS input went from over 18 mph to 0 mph in less than 2 seconds. P0501 Vehicle Speed Sensor Performance Fault: Engine running with the VSS input over 20 mph, 4-Wheel Low not selected, then the ECM detected that the VSS Buffer Calculated speed was less than half of the Transmission Calculated speed, or that the VSS buffer Calculated speed was more than the Transmission Calculated speed by at least 20 mph for 2 seconds. P0501 Vehicle Speed Signal Fault Engine running at cruise (light to medium load) for 10 minutes, and the ECM detected the VSS signal was below 3 mph for 5 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0502 Vehicle Speed Sensor Low Signal (3T40 Transmission) P0106 P0107 P0108 P0122 P01 23 and P0503 not set, MAP input more than 50 kPa, Transmission in Drive, throttle angle more than 15%, engine speed from 1600-4800 rpm, then the ECM detected that the VSS input was under 2 mph for 5 seconds. Note The Torque Converter Clutch is disabled with this code set. P0502 Vehicle Speed Sensor Low Signal (4T40/4T45-E Transmission) P0107 P0108 P0122 P0123 P0716 P0717 and P1810 not set, MAP input more than 50 kPa (MAP from 72-80 kPa on T), Transmission in Drive, throttle angle more than 12%, input speed more than - rpm, then the ECM detected that the output speed was less 2 mph (3.2 km/h), condition met for 3 seconds. P0502 Vehicle Speed Sensor Circuit Low Signal Fault: No P0705 set, engine speed over 3000 rpm, transmission not in P/N for over 4 seconds, Fault: met for 2 seconds, then ECM detected that the VSS input was less than 3 mph. P0502 Vehicle Speed Sensor Circuit Low Signal P0106 P0107 P0108, P1106, P1107 P0121 P0122 P0123, P1121 and P1122 set, Input Shaft Speed sensor over 1500 rpm, transaxte not in P/N, throttle angle over 12%, MAP input from 12 15 kPa, engine torque 40-150 ft-Ibs, then the ECM detected that the Output Shaft speed was less than 150 rpm for 2.5 seconds. P0502 VSS Circuit Low Input Fault: (4L60-E Transmission) P0107 P0108 P0122 P0123 and P1810 not set, engine vacuum from 0-150 kPa, throttle angle over 20%, engine torque from 40-400 ft-lbs, engine speed 3000-4800 rpm, Transmission not in Park or Neutral, then the ECM detected that the Transmission output speed was less than 150 rpm for three seconds. P0502 VSS Circuit Low Fault: (4T80-E Transmission) P0121 P0122 P0123 P0503 P0716 P0717, P1820, P1822, P1823 and P1825 not set, system voltage 8-18v, Decel Fuel Cutoff inactive, throttle angle over 12%, engine runtime 5 seconds, not in P/N, engine torque at 44-291 ft-lbs, ISS from 1000-5000 rpm, then the ECM detected the OSS input below 372 rpm for 3 seconds. P0502 Vehicle Speed Sensor Circuit Low Signal Fault: No MAP or TP sensor codes set, engine speed over 2900 rpm, not in P/N, throttle angle over 15%, engine torque 40-150 ft-Ibs, then the ECM detected an output speed under 150 rpm for 2.5 seconds. P0502 Vehicle Speed Sensor Low Signal (4T60-E Transmission) P0107, P10108 P0122 and P0123 not set, engine speed above 2900-3100 rpm, not in P or N, throttle angle over 15%, MAP input from 0-15 psi, engine torque from 40-150 ft/lbs, then the ECM detected that the OSS speed was less than 150 rpm, condition met for 2.5 seconds (transaxte defaults to 3rd gear, no TCC). P0502 Vehicle Speed Sensor Low Input Fault: P01 07 P01 08 P0122 and P0123 not set, engine speed from 1700-3600 rpm, throttle angle from 0-1 %, MAP input from 70-80 kPa, then the ECM detected that the VSS input was less than 2 mph (3 km/h), condition met for 5 seconds. P0502 VSS Low Input Fault: (4L60-E Transmission) P0107 P0108 P0122 P0123 and P1810 not set, engine speed from 3000-4800 rpm, throttle angle from 20-50%, MAP input from 20-60 kPa, Transmission not in P/N, then the ECM detected the output speed was below 150 rpm, condition met for 3 seconds. P0502 VSS Circuit Low Input Fault: (4T65-E Transmission) P0106 P0107 P0108 P0121 P0122 P0123, P1106, P1107, P1121, P1122 and P1810 not set, throttle position over 12%, MAP input from 0-150 kPa, engine torque from 40-300 ft-lbs, Input Shaft speed more than 1500 rpm, Transmission not in Park or Neutral, then the ECM detected that the Transmission Output Shaft sped was less than 150 rpm, condition met for 2.5 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0503 VSS Circuit Intermittent (4T60-E Transmission) Engine speed above 500 rpm, not in P or N, more than 6 seconds have elapsed since last range selector position change, DFCO not active, OSS signal did not rise more than 500 rpm in 2 seconds, then the ECM detected that the OSS signal dropped more than 1500 rpm, condition met for 2 seconds. P0503 VSS Circuit Intermittent (4T40/4T45-E Transmission) DTC P1810 not set, engine running, time since last gear select lever change over 6 seconds, an increase in output speed of 500 rpm or more has not occurred for over 5 seconds, then the ECM detected the output speed dropped over 1200 rpm in 3 seconds. P0503 Vehicle Speed Sensor Circuit Intermittent Fault: DTC P1810 not set, not in P/N, time since last gear change over 6 seconds, engine running, then the ECM detected a VSS output speed drop of over 1800 rpm, or with gear selector in P/N, that the VSS output speed dropped more than 2050 rpm for 4-6 seconds. P0503 VSS Circuit Intermittent Fault: (4L60-E Transmission) DTC P1810 not set, engine speed over 450 rpm for 5 seconds, FCO not active, time since last gear change over 6 seconds, OSS signal rise did not exceed 600 rpm within the last 6 seconds, then the ECM detected the OSS signal dropped by over 1300 rpm for 3 seconds with the Transmission not in Park or Neutral. P0503 VSS Circuit Intermittent Fault: (4T80-E Transmission) P0716 P0717 P01820, P1822, P1823, P1825 and P1843 not set, engine runtime over 5 seconds, engine speed over 500 rpm, Fuel Cutoff not active, not in P or N, throttle angle over 12.8 degrees, delivered torque over 80 ft-lbs, time since last gear select lever change over 6 seconds, OSS signal more than 1484 rpm and does not increase by more than 500 rpm for two seconds, then the ECM detected that the OSS signal dropped by more than 1299 rpm for over 1 second and that the input speed did not change by more than 500 RPM within 4.8 seconds. P0503 (A, B)Vehicle Speed Sensor Circuit Intermittent 1995-1999DTC P1810 not set, engine running, time since last gear change over 6 seconds, not in P/N, then the ECM detected a VSS output speed drop of over 1800 rpm, or with vehicle in P/N, that the VSS output speed dropped over 2050 rpm for 4-6 seconds in the test. P0503 Vehicle Speed Sensor Performance No ECM codes set, engine running, then ECM detected a vehicle speed change (VSS) of more than 20 mph in less than 1 second. P0503 Vehicle Speed Sensor Performance (4L60-E Transmission) DTC P1810 not set, engine speed over 450 rpm, time since last gear change over 6 seconds, Transmission not in Park or Neutral, Transmission output speed rise did not exceed 600 rpm within 6 seconds, then the ECM detected that the output speed dropped more than 1300 rpm, condition met for 3 seconds. P0503 VSS Circuit Intermittent Fault: (4T65-E Transmission) Engine speed over 500 rpm, Fuel Cutoff not active, Transmission not in Park or Neutral, time since last gear range change more than 6 seconds, Transmission Output Shaft speed rise more than 250 rpm in 2 seconds, then the ECM detected that the Output Shaft speed dropped more than 1500 RPM in a 3 second period. MULTIPLE INSTANCES OF THE SAME CODE: P0505 Idle Control System Fault: Engine running, Closed Throttle switch "on", system voltage over 12v, ECT input more than 84°F, Throttle Valve Feedback Check active, then the ECM detected that the ISC motor moved less than 0.244" (this test runs 10 times per drive cycle), or during the ISC Motor Voltage Check, that there was no operation signal from the ECM (this test runs twice per drive cycle). P0505 Idle Control System Fault: Engine running, ECT sensor input more than 158°F, then the ECM detected that the Actual idle speed and Target idle speed were more than a specified amount apart. to the correct code repair chart in other manuals or media. P0505 Idle Control Valve Circuit Fault: Key on or engine running, then the ECM detected an open or short condition in the IAC motor or its related circuit. MULTIPLE INSTANCES OF THE SAME CODE: P0506 Idle Speed Low Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0131 P0132 P0133 P0134 P0201. P0202 P0203 P0204 P0335 P0341 P0342 P0440 P0442 P0446 P0480 P0502 P0503 P0601 P0602, P1133 and P1441 not set, BAROMETRIC input over 72 kPa, ECT input more than 104°F, engine runtime over 20 seconds, throttle position less than 1 %, then the ECM detected the idle speed was 60 rpm less than the Desired for 13 seconds on A/T models (over 100 rpm for 19 seconds on M/T models) with the IAC motor commanded to more than 145 counts. P0506 Idle Speed Low Fault: No CKP, ECT, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire, TP and VSS codes set, ECT input over 158°F, system voltage 10 18v, engine runtime over 2 minutes, IAT input over 5°F, throttle angle below 1%, VSS input under 3 mph, BAROMETRIC input over 65 kPa, then the ECM detected that Actual idle speed was more than 100 rpm lower than Desired idle speed, condition met for 15 seconds. P0506 Idle Speed Low Fault: P0107 P0108 P0122 P0123 P0174 P0175 P0300 and P0325 not set, ECT input over 140°F, engine runtime 25 seconds, IAT input more than 14°F, throttle angle at 0%, BAROMETRIC input over 77 kPa, system voltage 10-17v, vehicle speed under 1 mph, idle speed below Desired rpm, Fault: met for 1 second, then with VSS input at 20-77 mph, MAF input at 13-35 g/sec, engine speed and TP inputs steady for 5 seconds, then with Active test enabled, the ECM detected a 6 g/sec change in MAF ( P0506 is set) or did not detect a 6 g/sec change in MAF (DTC P1508 is set). P0506 Idle Speed Low Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP TP sensor codes set, VSS input under 3 mph, engine runtime under 2 minutes, system voltage from 10-18v, BAROMETRIC input above 65 kPa (BAROMETRIC input over 70 kPa on 1), ECT and IAT sensor inputs more than -40°F (ECT input more than 158°F on 1 and IAT input more than -4°F on 1), throttle position closed, then the ECM detected that the engine speed was more than 150 rpm lower than Desired idle (engine speed more than 175 rpm lower than Desired idle on 1), Fault: met for 15 seconds. P0506 Idle Speed Low Fault: No ECT, MAP, TP or VSS codes set, system voltage from 10-16v, then the ECM detected the following Fault: during these tests Non-Intrusive Test ECT input more than 122°F, engine runtime over 30 seconds, IAT input more than -13°F, throttle angle under 1 %, BAROMETRIC input over 70 kPa, VSS input under 2 mph, all Fault: met for 3 seconds, then the ECM detected the Actual idle speed was 75 rpm less than Desired idle speed, and the MAF input changed less than 3 g/sec. Intrusive Test MAF sensor input at 17.5-50 g/sec, change in engine speed less than 50 rpm, change in the throttle under 1%,IAC commanded to move a specified number of steps, VSS input from 25-85 mph, then the ECM detected the Actual idle speed was 75 rpm less than Desired idle speed and the MAF input changed less than 3 g/sec. P0506 Idle Speed Low Fault: No ECT, EGR Control or Flow, EVAP Control or System, Fuel Trim, IAT, IC, Injector MAF, MAP, Misfire, TP or VSS codes set, engine runtime over 2 minutes, system voltage from 10-18v, BARO sensor input over 85 kPa, ECT input more than 122°F, IAT sensor input over -13°F, then the ECM detected the Actual idle speed was more than 75 rpm lower than the Desired idle for 15 seconds. P0506 Idle Speed Low Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0171 P0172 P0174 P0175 P0220 P0300 P0401 P0404 P0405 P0443 P0500, P1414 and P1441 not set, system voltage from 9-17v, engine runtime 60 seconds, ECT input more than 140°F, IAT input more than -14°F, BAROMETRIC input over 65 kPa, throttle angle under 1 %, VSS input under 1 mph, then the ECM detected the Actual idle speed was over 75 rpm lower than Desired idle speed for 5 seconds. P0506 Idle Speed Low Fault: No CKP, ECT, EGR, Fuel Injector, Fuel Trim, IAT, MAF, MAP, TP or VSS codes set, system voltage from 8-18v, engine runtime over 2 minutes, ECT and IAT sensor inputs more than -40°F, throttle APP indicated angle under 3%, BARO input over 65 kPa, VSS input under 3 mph, then the ECM detected the Actual idle speed was 150 rpm lower than the Desired idle speed for 15 seconds. P0506 Idle Speed Low Fault: No ECM codes set, ECT input over 140°F, engine runtime over 25 seconds, IAT input more than 14°F, throttle angle at 0%, BARO input over 77 kPa, vehicle speed under 1 mph, idle speed below Desired rpm, Fault: met for 1 second, then with VSS at 20-77 mph, MAF input at 13-35 g/sec, RPM and TP inputs steady for 5 seconds and the Active test enabled, the ECM detected a 6 g/sec change in MAF ( P0506) or did not detect a 6 g/sec change in MAF. MULTIPLE INSTANCES OF THE SAME CODE: P0507 Idle Speed High Fault: P0105 P0107 P0108 P0112 P0113 P0117 P0118 P0122 P0123 P0125 P0131 P0132 P0133 P0134 P0201. P0202 P0203 P0204 P0335 P0341 P0342 P0440 P0442 P0446 P0480 P0502 P0503 P0601 P0602, P1133 and P1441 not set, BARO input over 72 kPa, ECT input over 104°F, engine runtime over 20 seconds, throttle angle below 1 %, then the ECM detected the Actual idle speed was 60 rpm higher than Desired idle speed. P0507 Idle Speed High Fault: No CKP, ECT, EVAP, Fuel Trim, IAT, Injector, MAF, MAP, Misfire, TP and VSS codes set, ECT input over 158°F, system voltage 10 18v, engine runtime over 2 minutes, IAT input over 5°F, throttle angle below 1 %, VSS input under 3 mph, BAROMETRIC input over 65 kPa, then the ECM detected that Actual idle speed was more than 75 rpm higher than Desired idle speed, condition met for 15 seconds. P0507 Idle Speed High Fault: P0107 P0108 P0122 P0123 P0174 P0175 P0300 and P0325 not set, ECT input over 140°F, engine runtime 25 seconds, IAT input more than 14°F, throttle angle at 0%, BAROMETRIC input over 77 kPa, system voltage 10-17v, vehicle speed under 1 mph, idle speed below Desired rpm, Fault: met for 1 second, then with VSS input at 20-77 mph, MAF input at 13-35 g/sec, engine speed and TP inputs steady for 5 seconds, then with Active test enabled, the ECM detected a 6 g/sec change in MAF ( P0507 is set) or did not detect a 6 g/sec change in MAF (DTC P1509 is set). P0507 Idle Speed Low Fault: No CKP, ECT, EGR, EVAP, Fuel Trim, IAT, Injector, MAF, MAP or TP sensor codes set, VSS input under 3 mph, engine runtime less than 2 minutes, system voltage from 10-18v, BAROMETRIC input above 65 kPa (BAROMETRIC input over 70 kPa on 1), ECT and AT sensor inputs more than -40°F (ECT input more than 158°F on 1 and IAT input more than -4°F on 1), throttle position closed, then the ECM detected that the engine speed was more than 275 rpm higher than the Desired idle speed, condition met for 15 seconds. P0507 Idle Speed High Fault: No ECM codes set, ECT input from 131-158°F, engine runtime from 5-240 seconds, IAT input at -4 to 60°F, BAROMETRIC input over 65 kPa, throttle closed, VSS input under 3 mph and the ECM detected that the Actual idle speed was 175 rpm higher 180 o, 175 higher on X) than the Desired idle speed for 15 seconds. P0507 Idle Speed High Fault: No ECT, MAP, TP or VSS codes set, system voltage from 10-16v, then the ECM detected the following Fault: during these tests Non-Intrusive Test ECT input more than 122°F, engine runtime over 30 seconds, IAT input more than -13°F, throttle position under 1 %, BAROMETRIC input over 70 kPa, VSS input under 2 mph, all met for 3 seconds, and the ECM detected the Actual idle speed was 75 rpm less than Desired idle speed, and the change in the MAF input was less than 3 g/sec. Intrusive Test (If the Non-Intrusive Test Fails, this test is run) MAF sensor input from 17.5-50 g/sec, any change in the engine speed less than 50 mph, any change in the throttle position less than 1%, the IAC valve was commanded to move a specified number of steps, VSS input from 25-85 mph, and ECM detected that the Actual idle speed was 100 rpm higher than the Desired idle speed and that the MAF input changed less than 3 g/sec. P0507 Idle Speed High Fault: No ECT, EGR Control and Flow, EVAP Control and System, Fuel Trim, IAT, IC, Injector, MAF, MAP, Misfire, TIP and VSS codes set, engine runtime over 2 minutes, system voltage from 10-18v, BAROMETRIC sensor input over 85 kPa, ECT input more than 122°F, IAT sensor input over -13°F, then the ECM detected the Actual idle speed was more than 75 rpm higher than the Desired idle for 15 seconds. P0507 Idle Speed System Higher Than Expected Fault: P0101 P0102 P0103 P0107 P0108 P0112 P0113 P0117 P0118 P0121 P0122 P0123 P0125 P0171 P0172 P0174 P0175 P0220 P0300 P0401 P0404 P0405 P0443 P0500, P1414 and P1441 not set, engine runtime 60 seconds, system voltage at 9-17v, ECT input over 140°F, IAT input more than -14°F, BAROMETRIC input over 65 kPa, throttle angle below 1 %, VSS input under 1 mph, then the ECM detected the Actual idle speed was more than 200 rpm higher than Desired idle speed for 5 seconds. P0507 Idle Speed High Fault: No CKP, ECT, EGR, Fuel Injector, Fuel Trim, IAT, MAF, MAP, TP or VSS codes set, system voltage from 8-18v, ECT and IAT inputs more than -40°F, engine runtime over 2 minutes, BAROMETRIC sensor input over 65 kPa, throttle APP indicated angle under 3%, VSS input under 3 mph, then the ECM detected the Actual idle speed was 175 rpm higher than the Desired idle speed for 15 seconds. P0507 Idle Speed High Fault: No ECM codes set, engine runtime 25 seconds, ECT input over 140°F, IAT input over 14°F, throttle angle at 0%, BAROMETRIC input over 77 kPa, VSS under 1 mph, idle speed above Desired rpm, then VSS from 20-77 mph, MAF input 13-35 g/sec, RPM and TP inputs all steady for 5 seconds, the ECM detected over a 6 g/sec change ( P0507 is set) or less than a 6 g/sec change in MAF (P1509 is set). MULTIPLE INSTANCES OF THE SAME CODE: P0510 Closed Throttle Position Switch Circuit Fault: Engine running, then VSS changed from 0-20 mph, then the ECM detected the Closed Throttle Position (CTP) switch did not indicate "off' (not at idle) to "on" (at idle) or from "on" to "off' during the change in vehicle speed, condition met for 16 times during the trip. P0522 Engine Oil Pressure Sensor Circuit Low Input Fault: Engine running, no 5-volt VREF 'A' codes set, then the ECM detected that the Engine Oil Pressure (EOP) signal was equal to or more than 0.48v, condition met for at least 9 seconds. P0522 Engine Oil Pressure Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the Engine Oil Pressure (EOP) signal was less than 0.48v for 1 second. MULTIPLE INSTANCES OF THE SAME CODE: P0523 Engine Oil Pressure Sensor Circuit High Input Fault: Engine running, no 5-volt VREF 'A' codes set, then the ECM detected that the Engine Oil Pressure (EOP) signal was equal to or more than 4.6v, condition met for at least 9 seconds. P0523 Engine Oil Pressure Sensor Circuit Low Input Fault: Engine running, then the ECM detected that the Engine Oil Pressure (EOP) signal was more than 4.45v for 1 second. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Key on and the ECM detected one of these faults for 15 seconds That the A/C Refrigerant Pressure sensor input was more than 4.92v (453 psi) with the A/C requested. That the A/C Refrigerant Pressure sensor input was more than 3.98v (363 psi) with the A/C not requested. That the A/C Refrigerant Pressure sensor input was less than 0.10v (0 psi) with the IAT input over 32°F (P0112 or P0113 not set) That the A/C Refrigerant Pressure sensor value was under 0.10v (0 psi) with the IAT input less than 32° F and an IAT code set. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Engine running with A/C requested, then the ECM detected that the A/C Pressure sensor input less than 0.1 v (9 psi) or that it was more than 4.9v (472 kPa), Fault: met for 20 seconds. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Engine running with the A/C selected, then the ECM detected an A/C Pressure sensor input below 0.1v (-8 psi), or an input above 4.94v (448 psi) for 5 seconds. P0530 Engine running with the A/C requested, then the ECM detected an A/C Pressure sensor input below 0.1 v (-8 psi), or an A/C Pressure sensor input that was more than 4.94v (448 psi) for 20 seconds. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Engine running with A/C requested, then the ECM detected that the A/C Refrigerant Pressure sensor input was less than 3-8 psi or more than 445-448 psi, either condition met for 5 seconds. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Engine running with A/C requested, then the ECM detected the A/C Refrigerant Pressure sensor input was less than 0.1v (9 psi) or more than 4.9v (472 psi), Fault: met for 20 seconds. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Engine running with the A/C selected, then the ECM detected an A/C Pressure sensor input below 0.1v (-8.0 psi), or an input above 4.94v (448 psi), condition met for 5 seconds. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: P0112 and P0113 not set, key on or engine running, then the ECM detected that the A/C Refrigerant Pressure sensor input indicated more than 4.90v (493 psi) with A/C requested, or the sensor indicated more than 4.Ov (363 psi) with A/C not request, or the sensor indicated less than 0.10v (0 psi) when the AT sensor input indicates more than 32°F, condition met for 15 seconds. Note The ECM disables the A/C compressor with this code set. P0530 A/C Refrigerant Pressure Sensor Circuit Fault: Engine running with A/C requested, then the ECM detected the A/C Refrigerant Pressure sensor input was less than 0.1v (9 psi) or more than 4.9v (472 psi), either condition met for 20 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0531 A/C Refrigerant Pressure Sensor Performance Fault: Engine running, then the ECM detected that the A/C Refrigerant pressure did not change by more than 4 psi with the A/C clutch cycled from off to on, condition met for less than 10 seconds. P0531 A/C Refrigerant Pressure Sensor Performance Fault: Engine running, then the ECM detected that the A/C Refrigerant pressure did not change by more than 4 psi with the A/C clutch cycled from off to on, condition met for less than 10 seconds. P0532 A/C Refrigerant Pressure Sensor Circuit Low Input Fault: Engine running, A/C has been requested, then the ECM detected an A/C Pressure sensor signal that was less than 0.1v, Fault: met for three seconds. P0533 A/C Refrigerant Pressure Sensor Circuit High Input Fault: Engine running with A/C requested, then the ECM detected an A/C Pressure sensor signal that was over 4.90v for three seconds. P0550 Power Steering Pressure Switch Circuit Low Engine running, VSS input over 45 mph, then the ECM detected the PSP switch circuit was open, condition met for 60 seconds. P0550 Power Steering Pressure Switch Circuit Low Engine running, VSS input over 45 mph, then the ECM detected the PSP switch circuit was open, condition met for 60 seconds. Note The ECM limits Desired idle speed to a minimum of 800 rpm. MULTIPLE INSTANCES OF THE SAME CODE: P0560 System Voltage Fault Fault: Engine running and then the ECM detected that the system voltage was under 10v or over 16v for a 2 second period. P0560 System Voltage Fault Fault: Engine speed over 800 rpm and then the ECM detected that the system voltage was under 10v or over 16v for a 2 second period. P0560 System Voltage Fault Fault: Engine speed over 650 rpm, then the ECM detected that the system voltage was less than 9v or more than 18v for 25 seconds. P0560 System Voltage Fault: Engine runtime over 10 seconds, engine speed over 1500 rpm, vehicle speed below 25 mph, then the ECM detected that the system voltage was less than 11v (out-of-range) for 2 seconds. P0562 System Voltage Fault Fault: Engine running, then the ECM detected that the system voltage was less than 9v or more than 16v, condition met for more than 25 seconds. P0560 System Voltage Fault Fault: Engine running at over 1500 rpm, then the ECM detected a system voltage that was under 10.5v with a maximum TFT sensor input of 305°F, or a system voltage that was under 6.7v at a minimum TFT sensor input of -40°F, or over 19v for 4 seconds. P0560 System Voltage Fault Fault: Engine speed over 650 rpm and then the ECM detected that the system voltage was under 9v or over 18v for a 25 second period. P0560 System Voltage Low Fault: Engine running with vehicle speed over 0 mph, then the ECM detected that system voltage was less than 9.0 for 2.25 seconds, or that the system voltage was more than 16v for 2.25 seconds. P0560 System Voltage Out-Of-Range High Or Low Fault: P0562 P0563 not set, engine running and ECM detected that the system voltage was under 8v or over 16v (at any time). Note If DTC P1635 is also set, repair this trouble code first. P0561 System Voltage Unstable Fault: Engine running, then the ECM detected a sudden change in the monitored system voltage that was more than 3 volts. Note If DTC P1635 is also set, repair this trouble code first. MULTIPLE INSTANCES OF THE SAME CODE: P0562 System Voltage Fault Fault: Engine speed over 1200 rpm (1300 on T), VSS input over 5 mph, then the ECM detected the system voltage was under 10v for 240 seconds (4 minutes). P0562 System Voltage Low Fault: Engine running, then the ECM detected that the system voltage was less than 8v, condition met for 6 seconds. P0562 System Voltage Low Input Fault: Engine speed over 1500 rpm, then the ECM detected that the system voltage was below 10v, Fault: met for 5 seconds. P0562 System Voltage Low Fault: Engine speed over 1000 rpm, engine runtime over 10 seconds, VSS input over 5 mph, then the ECM detected that the system voltage was less than 8v, condition met for five seconds. P0562 System Voltage Low Fault: Engine running, then ECM detected an ignition voltage of below 8 volts for 6 seconds. P0562 System Voltage Low Input Fault: Engine speed over 500 rpm, then the ECM detected that the system voltage was less than 10v, condition met for 5 seconds. P0562 System Voltage Low Fault: Engine running, then the ECM detected that the system voltage was less than 11 volts for 3 seconds. Note This code can set if the vehicle is used to jump-start another vehicle. P0562 System Voltage Low Fault: Engine speed over 1300 rpm, then the ECM detected that the system voltage was less than 10v, condition met for 240 seconds. P0562 System Voltage Fault Fault: Engine speed over 800 rpm and then the ECM detected that the system voltage was under 10v or over 16v for a 2 second period. P0562 System Voltage Low Fault: Engine speed over 1000 rpm, engine runtime over 10 seconds, VSS input over 5 mph, then the ECM detected that the system voltage was less than 8v, condition met for five seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0563 System Voltage High Fault: Engine running, then the ECM detected that the system voltage was over 17v, condition met for 6 seconds. P0563 System Voltage High Fault: Engine running, then ECM detected an ignition voltage of over 17.1 volts for 6 seconds. P0563 System Voltage High Input Fault: Engine running, then the ECM detected that the system voltage was over 16v, condition met for 1 second. P0563 System Voltage High Fault: Engine speed over 1000 rpm, engine runtime over 10 seconds, VSS input over 5 mph, then the ECM detected that the system voltage was more than 18v, condition met for 5 seconds. P0563 System Voltage High Fault: Engine running, then ECM detected that the system voltage was over 17.1 volts for 6 seconds. P0563 System Voltage High Input Fault: Engine running, then the ECM detected that the system voltage was over 16v, condition met for 6 seconds. P0563 System Voltage High Fault: Engine running, then the ECM detected that the system voltage was more than 17v, condition met for 6 seconds. P0563 System Voltage High Fault: Engine speed at 1000 rpm for 10 seconds, VSS over 5 mph, and the ECM detected the system voltage was over 18v for 5 seconds. P0563 System Voltage High Fault: Engine running, then the ECM detected that the system voltage was more than 17 volts for 3 seconds. Note This code can set if the vehicle is used to jump-start another vehicle. P0565 Cruise Control Switch Circuit Fault: Engine running, and with the Cruise Switch on, the ECM detected a Cruise switch input that was under 0.5v or over 1.Ov, or with the Resume/Accel Switch on, it detected an input under 1.2v or over 1.7v, or with Set Coast Switch on, an input under 3.Ov or over 3.5v. MULTIPLE INSTANCES OF THE SAME CODE: P0567 Cruise Control Resume Switch Circuit Fault: Key on or engine running, then the ECM detected system voltage on the Cruise Resume Switch signal circuit with Cruise Switch off, or with the Cruise Switch on, that the Resume Switch was on for longer than 25 seconds. P0567 Cruise Control Resume Switch Circuit Fault: Engine running and the ECM or TAC module (with Cruise enabled) detected the Resume/Accel switch indicated "on" for 90 seconds. P0568 Cruise Control Set Switch Circuit Fault: Engine running and the ECM or TAC module (with Cruise enabled) detected the Set/Coast switch indicated "on" for 90 seconds. P0568 Cruise Control Set Circuit Fault: Key on or engine running, then the ECM detected system voltage on the Set Switch signal circuit with the Cruise Switch off, or with Cruise Switch on, that the Set Switch was on for over 25 seconds. MULTIPLE INSTANCES OF THE SAME CODE: P0571 Cruise/Brake Switch Circuit Fault: Key on or engine running, then the ECM detected that the TCC and Stop/Lamp/Cruise Brake Switch inputs disagreed for 10 consecutive minutes, or the TCC and Cruise Brake Switches were not toggled open and closed during 6 brake applications on a trip. P0571 Cruise Control Brake Switch Circuit Fault: Engine running with the engine speed more than 1000 rpm for at least 1 second, wheel speed indicating over 20 mph (to allow the test to start - the test is disabled below 5 mph), then the ECM detected that the vehicle speed decreased (1) in 0.5 seconds without the ECM detecting any Brake switch transition, Fault: occurred during 10 Accel/Decel cycles. P0571 Cruise Control Brake Switch Circuit Fault: Engine runtime over 2 seconds, engine speed over 700 rpm, then the ECM detected a voltage on the Cruise Control Brake switch With an ARcircuit when the Cruise Control Brake switch should be open, condition met for 1.5 seconds. Note Wheel speed must be more than 30 mph to enable this test. The test disables if the wheel speed is below 16 km/h (10 mph). with a MR P0571 Cruise/Brake Switch Circuit Fault: Key on or engine running, then the ECM detected that the Cruise release signal did not match the stop lamp signal at least 20 times. P0571 Cruise/Brake Switch Circuit Fault: P0572 and P0573 not set, engine running and then the ECM detected that the VSS input cycled from 0-37 mph 5 times without detecting a change in the Brake switch status. Note If P0571 sets and P0572 or P0573 are not set, the ECM may have failed. P0572 Cruise/Brake Switch Circuit Low Input Fault: Engine running with vehicle speed cycled 2 times from 0-37 mph, and the ECM did not detect any change in the Brake switch status. P0573 Cruise/Brake Switch Circuit High Input Fault: Engine running, then vehicle speed cycled 2 times from 0-34 mph, and the ECM detected the voltage on the Brake switch circuit (86B) remained at 12v during the test. Note This code can set if a customer comes to a complete stop without using the foot brake. P0574 Vehicle Speed Too High - Cruise Control Disabled Fault: Engine running, Cruise Control enabled and engaged, then the ECM determined that the vehicle speed indicated more than 176 km/h (110 mph). P0600 Loss Of Serial Communication Link Fault: Key on, then the ECM detected that serial data messages were not All Models transmitted to other modules. P0601 Control Module ROM Fault Fault: Key in crank or run position, then the ECM detected during a self check that it detected more than 3 incorrect checksums. P0602 Control Module Not Programmed Fault: Key in crank or run position, then the ECM or TCM detected that it did not contain the correct program to operate the vehicle or the EEPROM may not be programmed correctly. P0603 Control Module Long Term Memory Reset Fault: Key in run position, then the ECM detected a difference in the data stored in the keep alive memory at power-down when compared to the data retrieved from keep alive memory at initial power-up. P0603 Control Module Long Term Memory Reset Fault: P0604 not set, key on, then the ECM determined that its calculated checksum that did not match a previous checksum. P0603 ECM Memory Reset Fault: Key on or engine running, then the ECM detected an error while reading the EEPROM data readout (communications line fault). P0603 ECM Non-Volatile Random Access Memory Fault Key on, then the ECM detected that the TCM non-volatile random access memory failed. P0603 Control Module Long Term Memory Reset Fault: During the engine power down phase the ECM determined that an internal data test did not pass. P0603 Control Module Long Term Memory Reset Fault: Key on or engine running, then the ECM determined that the Keep Alive Memory did not match a previous checksum. P0604 Control Module Random Access Memory Fault Fault: Key on for at least 5 seconds, system voltage over 10v, then the ECM detected that the internal data test (RAM) failed. P0604 ECM RAM Error Fault: Key on, and then the ECM determined that the TCM non-volatile random access memory failed. P0605 Control Module Programming Read Only Memory Fault: Key in run position, then the ECM detected that the data checksum did not match the expected value or it was unable to read data from the flash memory. P0605 ECM EEPROM Fault Fault: ECM detected the EEPROM failed. P0606 ECM Internal Communications Interrupted Fault: P0370 not set, then the ECM detected that it failed its internal communication check. P0606 Control Module Internal Performance Fault: P0601 P0604 not set, key on, then the ECM determined that an internal performance problem existed within the controller. P0606 Control Module Internal Performance Fault: Key on or engine running, the ECM is powered-up, then the ECM detected an internal microprocessor integrity fault. P0606 Control Module Internal Performance Fault: Key on for 5 seconds, system voltage over 10v, valid SPI data is received, then the ECM detected that the ECT, MAP and TP sensor data varied between the ECM and the TCM (controller). P0606 (1 T)ECM RAM Error Fault: Engine running at over 1120 rpm, then the ECM detected that an internal data test had failed. P0606 Control Module Internal Performance Fault: Key on or engine running, the ECM is powered-up, then the ECM detected an internal microprocessor integrity fault. P0606 ECM Processor Fault Fault: Key on or engine running and ECM detected an internal TCM fault. P0608 Vehicle Speed Output Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Vehicle Speed Output circuit did not match for 5 seconds. P0615 Starter Relay Control Circuit Fault: Engine cranking, system voltage from 8-16v, then the ECM detected an improper voltage level on the output circuit that controls the Starter Relay, Fault: met for two seconds. P0620 Generator Performance Fault: Engine running, Voltage Telltale lamp "on", then the ECM detected the 'L' terminal voltage was in a low state after it commanded the generator "on", or the 'F' terminal PWM was less than 5 percent with engine speed below 2500 rpm, condition met for 30 seconds. P0620 Generator Performance Fault: Engine running, Voltage Telltale lamp "on" and then the ECM detected that this lamp was on more than 30 seconds. P0620 Generator Performance Fault: Engine speed below 1000 rpm (low duty cycle test) or over 1300 rpm (high duty cycle test), Voltage Telltale lamp "on", then the ECM detected the 'L' terminal voltage was in a low state after commanding the generator on (condition met for 10 seconds) or that the 'F' terminal PWM was less than 10% for 30 seconds, or the 'F' terminal was more than 95% for 60 seconds. P0620 Generator Performance Fault: Engine running, Voltage Telltale lamp "on" and then the ECM detected that 'L' terminal voltage was in a low state with the ECM commanding the generator "on", condition met for 10 seconds. P0621 Generator 'L' Terminal Circuit Fault: Key on or engine running, then the ECM detected that the 'L' Terminal was Active with the key on and engine off, or the ECM detected that the 'L' Terminal was Inactive with the engine running, condition met for 6 seconds. P0621 Generator 'L' Terminal Circuit Fault: "Key On Test" No CKP, CMP or Generator codes set, key in RUN position with engine off, then the ECM detected a high voltage signal on the Generator 'L' Terminal, Fault: met for 5 seconds. "Run Test" No CKP, CMP or Generator codes set, engine is running, then the ECM detected a low voltage signal on the Generator 'L' Terminal, Fault: met for 5 seconds. P0622 Generator 'F' Terminal Circuit Fault: Kev On Test No CKP, CMP or Generator codes set, key in RUN position with engine off, then the ECM detected a Generator PWM signal that was more than 65%, Fault: met for 5 seconds. Run Test No CKP, CMP or Generator codes set, key in RUN position with engine off, then the ECM detected a Generator PWM signal that was less than 5%, Fault: met for 15 seconds. P0645 Air Conditioning Clutch Relay Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the A/C control circuit did not match, condition met for 5 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Engine running, system voltage from 8-16v, then the ECM detected an improper voltage level on the output circuit that controls the MIL operation, Fault: met for 10 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the MIL control driver circuit did not match, Fault: met for 5 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Key on or engine running, then the ECM detected an improper voltage level on the MIL control circuit for 30 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Key on or engine running, then the ECM detected an improper voltage level on the MIL control circuit with the MIL commanded on, condition met for 30 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Key on or engine running, system voltage from 8-16v, then the ECM detected an improper voltage level on the ODM 'D' output 1 circuit, condition met for at least 30 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Key on or engine running, system voltage from 10-18v, then the ECM detected an improper voltage level on the MIL Control output control circuit, condition met for at least 30 seconds. P0650 Malfunction Indicator Lamp Circuit Fault: Engine speed over 40 rpm, system voltage from 8-14v, then the ECM detected a short to ground, an open circuit or a short to power fault in the MIL driver control circuit. P0654 Engine Speed Output Control Circuit Engine speed over 600 rpm, then the ECM detected that the Commanded state of the Engine Speed Output circuit did not match the Actual state for a period of 10 seconds. P0654 Engine Speed Output Control Circuit Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Commanded state of the Engine Speed Output circuit did not match the Actual state for 5 seconds. P0656 Fuel Gauge Output Control Circuit Engine speed over 600 rpm, then the ECM detected that the Commanded state of the Fuel Gauge Output Control circuit did not match the Actual state for a period of 10 seconds. P0656 Fuel Gauge Output Control Circuit Engine speed over 600 rpm, system voltage from 9-18v, then the ECM detected the Commanded state of the Fuel Gauge Output control circuit did not match the Actual state for 10 seconds. P0656 Fuel Gauge Circuit Fault: Key on or engine running, then with the Fuel Gauge commanded to a 0% duty cycle, the ECM detected a n output feedback of less than 3v, condition met for 1 second. P0702 Transaxle Actuators Lost Power Fault: Engine runtime 1 minute, system voltage over 9v and the voltages at ECM Actuators J4A02, 03, 04, 05, 06 and 07 were below 0.9v. P0703 TCC Brake Input Circuit Fault: No VSS codes set, VSS over 35 mph for 10 seconds, then back to H0 mph 5 times and ECM did not detect any change in Brake status. P0703 TCC Brake Input Circuit (4L30-E Transmission) Fault: Engine running, system voltage from 8-18v, Transmission output speed was over 192 RPM, then the ECM did not receive a Brake switch signal from the ECM, Fault: met for 20 minutes. P0704 Clutch Switch Circuit Fault: No VSS codes set, then the ECM detected that the vehicle speed went from 0 mph to over 24 mph and then back to 0 mph for 2 seconds without the ECM detecting a Clutch switch transition. Note This fault must occur 7 times before the ECM sets this code. P0704 Clutch Switch Circuit Fault: Engine load and vehicle speed acceleration indicate that the vehicle in gear and moving, then the ECM detected that the Clutch Switch input indicated that the clutch was engaged (switch closed), Fault: met for 3 minutes, or changes in the vehicle speed to engine speed ratio indicated that over 70 gear changes had occurred without the Clutch Anticipate Switch changing status. P0704 Clutch Switch Circuit Fault: No VSS codes set, engine running with VSS more than 40 mph, then the ECM detected that no clutch switch transitions occurred. P0704 Clutch Switch Circuit Fault: No VSS codes set, engine running with VSS at 0 mph after the SR - SUVVSS had been more than 40 mph, and the ECM did not detect any changes in the Clutch switch status under these Fault:. P0704 Clutch Switch Circuit Fault: No VSS codes set, then the ECM detected that the vehicle speed went from 0 mph to over 24 mph and then back to 0 mph for 2 seconds without the ECM detecting a Clutch switch transition. Note This fault must occur 7 times before the ECM sets this code. MULTIPLE INSTANCES OF THE SAME CODE: P0705 Transaxle Range Switch Circuit Fault: Engine running, VSS input at 0 mph, then the ECM detected a PRNDL Switch input that indicated a gear other than P or N for 130 ms in 3 consecutive startups or the wrong inputs for 10 seconds. P0705 Transaxle Range Sensor Circuit Input (PRNDL) Fault: Engine running, then the ECM detected that the Transaxle Range Switch indicated an invalid combination for over 10 seconds. P0705 Transaxle Range Switch Circuit Fault: Engine running, then the ECM detected an invalid combination of Transaxle Range Switch inputs for more than 10 seconds. P0705 Transaxle Range Sensor Circuit Input (PRNDL) Fault: Engine running, VSS input over 5 mph, then the ECM detected an invalid PRNDL parameter, condition met for more than 5 seconds. P0705 Transaxle Range Switch Circuit (M60 3-Speed Transaxle) Engine running and the ECM did not receive any TR Switch inputs, or it received MULTIPLE inputs in Drive or 3rd gear for 5 seconds. P0705 Transaxle Range Switch Circuit (4L60-E Transmission) Key on or engine running, VSS input more than 5 mph, then the ECM detected an invalid PRNDL switch input for 5 seconds. P0705 Transaxle Range Switch Circuit (4L30-E Transmission) Key on, system voltage 10-18v, and the ECM detected an illegal or undefined TR switch position, condition met for over 20 seconds. P0705 Transaxle Range Switch Circuit Fault: Key on or engine running, system voltage over 8v, then the ECM detected a signal from the Transaxle Range (select lever) switch that indicated an illegal position, condition met for 10 seconds. P0705 Transaxle Range Switch Circuit Fault: Engine running, then the ECM detected an undefined bit pattern on circuits 771, 772, 773 with circuit 776 grounded for over 500 ms. P0706 Transaxle Range Switch Performance (PRNDL) Fault: Engine cranking, then the ECM detected a Transaxle Range switch input other than Park or Neutral during startup, condition met for 2 consecutive startups. P0706 Transaxle Range Switch Performance (PRNDL) Fault: During startup the ECM detected a Transaxle Range Switch input that indicated a gear position other than P/N (3 continuous times). P0706 Transaxle Range Switch Performance (4L30-E Transmission) Condition 1: (For Position Park or Neutral) P0120 not set, engine speed between 500-3008 rpm, throttle angle over 34% and ECM detected a 'P' or 'N' gear select signal. Condition 2: (For Reverse Position) Engine running with the transmission output speed more than 8160 RPM, then the ECM detected a Reverse position indication. P0706 Transaxle Range Switch Performance Fault: Key on or engine running, system voltage over 8v, then the ECM detected a signal from the Transaxle Range switch that indicated a range other than P/N during startup (must fail 2 out of 4 tests). P0706 Transaxle Range Switch Performance Fault: Engine running, then the ECM detected an invalid bit pattern for over 3.5 seconds, condition met twice per ignition cycle. P0708 Transaxle Switch Circuit High Fault: Engine running, then the ECM detected that all input bits equaled 12v with no switch circuits pulled low, condition met for 500 ms. P0710 TFT Sensor Circuit Low Input Fault: No TFT sensor codes set, engine running, then the ECM detected a low TFT input based ECT and IAT inputs for 25.6 seconds. P0711 TFT Sensor Performance Fault: (4L60-E Transmission) P0502 P0503 and P1870 not set, engine runtime over 409 seconds, system voltage from 10-18v, ECT input more than 158°F and changed by 90°F since startup, TFT input from -40 to 70°F at startup, TFT input from -36 to 304°F, VSS more than 5 mph for 409 seconds cumulative, TCC slip speed over 120 rpm cumulative in the current key cycle and the ECM detected these Fault Condition Condition 1: The TFT input did not change more than 2.7°F for 409 seconds since startup (2.7°F for 409 seconds for ruck). Condition 2: The TFT input changed more than 36°F in 200 milliseconds 14 times within 7 seconds. P0711 TFT Sensor Range/Performance (4T80-E Transmission) P0116 P0117 P0118 P0502 P0503 P0716 P0717, P1114 and P1115 not set, system voltage 8-18v, engine runtime over 5 seconds, TFT input from -35°F-300°F, TFT input at start up -36°F to 289°F, then the ECM detected one of the following Fault Condition Condition 1: P0711 not passed this ignition cycle, ECT sensor input more than 158°F and has changed by greater than 90°F since startup, TFT sensor input at startup is -36°F to 70°F, VSS input is more than 8 km/h (5 mph) for 15 minutes cumulatively, TCC slip speed more than 120 RPM for 15 minutes cumulatively, and the change in the TFT input was less than 4°F for 1 minute and 40 seconds. Condition 2: P0711 not passed this ignition cycle, ECT sensor input more than 158°F and has changed by more than 90°F since startup and the TFT sensor input at startup was 264 to 289°F, VSS input over 8 km/h (5 mph) for 15 minutes cumulatively, TCC slip speed more than 120 RPM for 15 minutes cumulatively, and the change in the TFT sensor input was less than 4°F for 50 seconds. Condition 3 The change in the TFT sensor input was more than 20°C (36°F) within 200 milliseconds (14 times within 7 seconds). P0711 TFT Sensor Range Performance Fault: Engine running, ECT sensor input less than 80°F after exceeding 160°F, ECT and IAT sensor inputs within 10°F of each other, then the ECM detected that the TFT sensor input was within 10°F of the IAT sensor input during startup, condition met on 2 ignition cycles. P0711 TFT Sensor Performance (4T40-E/4T45-E Transmission) P0502 P0503 P0716 and P0717 not set, engine runtime Jover 5 minutes, system voltage from 8-18v, ECT input more than 158°F and changed by more than 90°F since startup, startup TFT input from -40 to 70°F, TFT input from -36 to 304°F, VSS more than 5 mph and TCC slip speed more than 300 rpm more than 6 minutes and 49 seconds cumulative in current key cycle, then the ECM detected one of these Fault: occurred Condition 1: TFT input did not change over 2°F for 20 seconds after startup. Condition 2: TFT input changed over 36°F in 200 ms (14 times in 7 seconds). P0711 TFT Sensor Performance Fault: (4T65-E Transmission) P0502 P0503 and P1870 not set, engine runtime over 5 minutes, system voltage from 10-18v, ECT input more than 158°F and changed by 90°F since startup, TFT input from 0.2-4.92v at startup, startup TFT input from -40 to 69°F, VSS more than 5 mph for 409 seconds cumulative, TCC slip speed over 80 rpm for 4-9 seconds cumulative, then the ECM detected in these Fault Condition Condition 1: CarsThat the TFT input did not change by over 2°F after 409 seconds cumulative since startup. Condition 2: That the TFT input changed more than 36°F in 200 milliseconds, condition occurred 14 times within 7 seconds. P0712 (A, D)TFT Sensor Circuit Low Input Fault: P0560 not set, key on or engine running, then the ECM detected a TFT sensor input of 298°F or more (200 mVolts or less) for 5-10 continuous seconds. P0712-TTFT Sensor Circuit Low Temperature Fault: Engine runtime over 3 minutes, then the ECM detected that the TFT sensor indicated a transmission fluid temperature that was less than -40°F (High input) for over 1.6 seconds. P0712 TFT Sensor Circuit Low Input (4L60-E Transmission) Key on or engine running, system voltage from 10-18v, then the ECM detected that the TFT sensor input was less than 0.2v, Fault: met for 10 seconds. Note The Scan Tool does not indicate the Default TFT reading. P0712 TFT Sensor Circuit Low Input (4T80-E Transmission) Engine runtime over 5 seconds, system voltage from 8-18v, then the ECM detected that the TFT sensor input was 298°F or more (0.8v or less), Fault: met for 10 seconds. P0712 (A, D)TFT Sensor Circuit Low Input P0560 not set, key on or engine running, then the ECM detected a TFT sensor input of 298°F or more (200 mVolts or less) for 5-10 continuous seconds. P0712 TFT Sensor Circuit Low Input (4T40-E/4T45-E Transmission) Key on or engine running, system voltage 8-18v, and the ECM detected that the TFT input was less than 0.33v for 10 seconds. P0712 TFT Sensor Circuit Low Input (4T65-E Transmission) Key on or engine running, system voltage from 10-18v, then the ECM detected that the TFT sensor input was less than 0.2v, condition met for 10 seconds. Note The Scan Tool does not indicate the Default TFT reading. P0712 TFT Sensor Circuit Low Input (4L30-E Transmission) Key on or engine running, then the ECM detected that the TFT sensor input was less than 98 mv, Fault: met for 20 seconds. P0712 TFT Sensor Circuit Low Input Fault: Engine running, system voltage 8-18v, then the ECM detected that the TFT sensor input was more than 302°F for 10 seconds. P0712 TFT Sensor Circuit Low Input Fault: Key on or engine running, ECT sensor input less than then 212°F, and the ECM detected the TFT sensor input was more than 284°F, condition met for 30 seconds. P0713 TFT Sensor Circuit High Input Fault: P0560 not set, no ECT sensor codes set, key on, then the ECM detected a TFT sensor input of -33°F or less (4.92v or higher) for 6-7 continuous minutes. P0713T TFT Sensor High Temperature Fault: Engine runtime over 10 seconds, then the ECM detected a TFT sensor input that indicated a transmission fluid temperature of over 292°F (Low input) for longer than 1.6 seconds. P0713 TFT Sensor Circuit High Input (4L60-E Transmission) Key on or engine running, system voltage from 10-18v, then the ECM detected that the TFT sensor input was more than 4.92v, Fault: met for 6.8 minutes. Note The Scan Tool does not indicate the Default TFT reading. P0713 TFT Sensor Signal High Input (4T80-E Transmission) P0502 P0503 P0716 P0717 not set, engine runtime over 5 seconds, system voltage from 8-18v, ECT sensor input more than -13°F, Transmission OSS sensor indicating more than 738 rpm for 5 minutes cumulatively, TCC slip speed more than 49 rpm for 6 minutes and 40 seconds cumulatively, Fuel Cutoff inactive, then the ECM detected that the TFT sensor input was - 40°F or less (5.04v or more), Fault: met for six seconds. P0713 TFT Sensor Circuit High Input P0560 not set, no ECT sensor codes set, key on, then the ECM detected a TFT sensor input of -33°F or less (4.92v or higher) for 6-7 continuous minutes. P0713 TFT Sensor Circuit High Input (4T40-E/4T45-E Transmission) Key on or engine running, system voltage 8-18v, and the ECM detected that the TFT input was more than 4.92v for 6 minutes and 40 seconds. P0713 TFT Sensor Circuit High Input (4T65-E Transmission) Key on or engine running, system voltage from 10-18v, then the ECM detected that the TFT sensor input was more than 4.92v, condition met for 6 minutes and 40 seconds cumulative. Note The Scan Tool does not indicate the Default TFT reading. P0713 TFT Sensor Circuit High Input (4L30-E Transmission) Key on or engine running, then the ECM detected that the TFT sensor input was more than 4.3v, Fault: met for 20 seconds. P0713 TFT Sensor Circuit High Input Fault: Engine running, system voltage 8-18v, then the ECM detected that the TFT sensor input was less than -22°F for 10 seconds. P0713 TFT Sensor Circuit High Input Fault: Engine runtime over 3 minutes and 20 seconds, ECT sensor input over 1°F, then the ECM detected that the TFT sensor input was more than -35°F, condition met for 30 seconds. P0714 TFT Sensor Circuit Intermittent Fault: Key on or engine running, then the ECM detected that the TFT sensor input changed 0.2v or more (a 10°F change), condition met for less than 1 second. P0716 Input Speed Sensor Circuit Intermittent (4T80-E Transmission) P0502 P0503 P0717 P0751 P0752, P1820, P1822, P1823, P1825, P1842 and P1843 not set, system voltage from 8-18v, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission not in P/N, VSS input over 10 mph (16 km/h), then the ECM detected the Input Shaft speed was under 51 rpm for 6 seconds. P0716 Input Speed Sensor Circuit (4T40/4T45-E Transmission) P0121 P0122 P0123 P0502 P0503 P0717 P0751 P0752 and P0758 not set, system voltage from 8-18v, engine running, throttle position over 8%, VSS input over 5 mph, then the ECM detected the Input speed changed by over 300 rpm in 800 ms. P0716 Input Speed Sensor Circuit Intermittent (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0717 P0751 P0752 P0753 P0756 P0757 and P0758 not set, P0717 test passed this key cycle, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, throttle position over 14%, VSS input over 5 mph, then the ECM detected the Input Shaft speed changed by more than 1300 rpm, condition met within 800 milliseconds. P0716 Input Shaft Speed Sensor Circuit Intermittent Fault: ECM detected, twice per ignition cycle, an Input Shaft Speed (ISS) noise parameter status that equaled Yes, TSS over 1400 rpm, condition met for 700 milliseconds. P0717 Input Turbine Speed Sensor No Signal Fault: P0502 or P1810 not set, engine runtime over 5 seconds, VSS input more than 20 mph, Fuel Cutoff mode inactive, Transmission not in Park or Neutral, then the ECM detected that the Input Turbine Speed was less than 50 rpm for at least 2 seconds. P0717 Input Speed Sensor Circuit Low Input (4T80-E Transmission) P0502 P0503m P1820, P1822, P1823 and P1825 not set, system voltage from 8-18v, engine runtime over 5 seconds, Fuel Cut off inactive, Transmission not in Park or Neutral, VSS over 10 mph, then the ECM detected that the Input Speed was less than 51 rpm, Fault: met for six seconds. P0717 Input Speed Sensor Low Input (4T40/4T45-E Transmission) P0502 P0503 and P1820 not set, system voltage from 8-18v, engine running, TFP manual valve position indicated vehicle was not in P/N, VSS input over 5 mph, then the ECM detected that the Input speed was less than 100 RPM, condition met for 5 seconds. P0717 Input Speed Sensor Circuit Low Input (4T65-E Transmission) P0502 P0503 and P1810 not set, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, TFP manual valve position switch not indicating Park or Neutral, VSS input over 5 mph, and the ECM detected the Input Shaft speed was under 50 rpm for 5 seconds. P0717 Input Shaft Speed Sensor Circuit Low Input Fault: Engine running, VSS input over 6 mph, engine speed over 3472 rpm, then the ECM detected that the VSS input indicated 0 mph, condition met for 2 seconds. P0719 Brake Switch Circuit Low Input Fault: P0502 not set, VSS under 5 mph, then vehicle accelerated in 4-6 seconds to 20 mph and remained there for 6 seconds, then the ECM detected these Fault: occurred 7 times with Brake switch & Mon for 15 minutes and without a Brake Switch input for 2 seconds. P0719 Brake Switch Circuit Low Input (4T40/4T45-E Transmission) Engine running, system voltage from 8-18v, and the ECM detected an open Brake switch input (Ov) for 15 minutes under these Fault: eight consecutive times The vehicle speed was 5 mph Then the vehicle speed was at 5-20 mph for 3 seconds Then the vehicle speed was more than 20 mph for 6 seconds P0719 (A, D)Brake Switch Circuit Low Input (4T60-E Transmission) P0502 not set, VSS under 5 mph, then vehicle accelerated in 4-6 seconds to 20 mph and remained there for 6 seconds, then the ECM detected these Fault: occurred 7 times with Brake switch on for 15 minutes and without a Brake Switch input for 2 seconds. P0719 Brake Switch Circuit Low Input (4T65-E Transmission) P0502 and P0503 not set, then the ECM determined that the Brake switch input was continually open (Ov) for 15 minutes, and the event occurred 8 times consecutively under these Fault Condition The vehicle speed was less than 5 mph Then vehicle speed was between 5 and 20 mph for 3 seconds Then the vehicle speed remained over 20 mph for 6 seconds P0719 TCC Brake Switch Circuit Low Input (4L60-E Transmission) P0502 and P0503 not set, key on or engine running, then the ECM determined that the Brake switch input indicated open (Ov) for 15 minutes (without changing for 2 seconds), and that the following events occurred 7 times with the VSS less than 5 mph The vehicle speed was 8-32 km/h (5-20 mph) for 4 seconds Then the vehicle speed was over 20 mph for 6 seconds. P0719 Brake Switch Circuit Low Input (4T80-E Transmission) P0502 P0503 not set P0719 test not passed this key cycle, and the ECM detected a low (Ov) Brake switch input for 15 minutes under these Fault: 8 times without a TCC brake input change The vehicle speed was 5 mph Then the vehicle speed was at 5-20 mph within 2-6 seconds Then the vehicle speed was more than 20 mph for 6 seconds P0719 (A, D)TCC Brake Switch Circuit Low Input P0502 not set, VSS under 5 mph, then vehicle accelerated in 4-6 seconds to 20 mph where it remained for 6 seconds, then the ECM detected these Fault: occurred 7 times with Brake switch on for 15 minutes and without a Brake Switch input for 2 seconds. P0719 Brake Switch Circuit Low Input (3T40 Transmission) Engine running and the ECM detected an open Brake switch input for 15 minutes under these Fault: eight consecutive times The vehicle speed was 5 mph Then the vehicle speed was at 5-20 mph for 3 seconds Then the vehicle speed was more than 20 mph for 6 seconds P0719 TCC Brake Switch Circuit Low Input (4L60-E Transmission) P0502 and P0503 not set, key on or engine running, then the ECM determined that the Brake switch input indicated open (Ov) for 15 minutes (without changing for 2 seconds), and that the following events occurred 7 times with the VSS less than 5 mph The vehicle speed was 8-32 km/h (5-20 mph) for 4 seconds Then the vehicle speed was over 20 mph for 6 seconds. P0719 TCC Brake Switch Circuit Low Input Fault: P0502 not set, VSS under 5 mph, then vehicle accelerated in 4-6 seconds to 20 mph and remained there for 6 seconds, then the ECM detected these Fault: occurred 7 times with Brake switch on for 15 minutes and without a Brake Switch input for 2 seconds. P0720 Output Speed Sensor Circuit (M60 3-Speed Transaxle) Engine running, vehicle in Drive or 2nd Gear range, and then the ECM did not receive any VSS (Transaxle) signal inputs. P0721 Vehicle Speed Sensor Circuit Performance Fault: Engine running, VSS Noise codes set (parameter status equaled then the ECM detected, twice per ignition cycle, a VSS input of over 15 mph for 1 second. P0722 Output Speed Sensor Circuit Low Input (4L30-E Transmission) Engine speed over 3008 rpm, Transmission not in Park, Reverse or Neutral, then the ECM detected the output speed was 0 rpm. P0722 Vehicle Speed Sensor Circuit Low Input Fault: Engine running, starting from a complete stop, turbine speed over 1400 rpm, steady moderate throttle, speed ratio across the torque converter over 700 rpm, then in a 1-2 upshift the ECM detected the turbine speed pulled-down by a 1-2 ratio with no VSS input. P0124 (A, D)TCC Brake Switch Circuit High Input Fault: No VSS codes set, VSS over 20 mph for over 6 seconds, then vehicle accelerated in 4-6 seconds to 20 mph and then to less than 5 mph, then the ECM detected these Fault: occurred 7 times with the Brake switch off continuously without the ECM receiving a TCC Brake switch voltage input for 2 seconds or longer. P0724 Brake Switch Circuit High Input (4T65-E Transmission) P0502 and P0503 not set, then the ECM determined that the Brake switch input was continually closed (12v), and that the event occurred 8 times consecutively, then under these Fault Condition The vehicle speed more than 200 mph for 6 seconds. Then vehicle speed decreased to 5 mph for 3 seconds. Then the vehicle speed was less than 5 mph. P0724 TCC Brake Switch Circuit High Input (4T60-E Transmission) P0502 and P0503 not set, VSS over 20 mph for over 6 seconds, then vehicle decelerated in 4 seconds to 5 mph and then to less than 5 mph, these Fault: occurred 7 times, then the ECM detected that the Brake switch indicated continuously off during these Fault:. P0724 TCC Brake Switch High Input (4L60-E Transmission) P0502 and P0503 not set, key on or engine running, then the ECM determined that the Brake switch circuit was closed (12v) without changing for 2 seconds, and that the following events ccurred seven times The vehicle speed was over 32 km/h (20 mph) for 6 seconds The vehicle speed was from 5-20 mph for 4 seconds The vehicle speed was less than 8 km/h (5 mph) P0724 Brake Switch Circuit High Input (4T80-E Transmission) P0502 P0503 not set P0719 test not passed this key cycle, TCC Brake switch at Ov, then the ECM detected that the brake switch input indicated system voltage for 15 minutes while the following Fault: occurred 8 times without a status change on the TCC brake input Vehicle speed under 5 mph (8 km/h) Then vehicle accelerated to 20 mph (32 km/h) within 2-6 seconds Vehicle speed remained over 32 km/h (20 mph) for 6 seconds P0724 (A, D)TCC Brake Switch Circuit High Input Fault: No VSS codes set, VSS over 20 mph for over 6 seconds, then vehicle accelerated in 4-6 seconds to 20 mph and then to less than 5 mph, then the ECM detected these Fault: occurred 7 times with Brake switch off continuously without the ECM receiving a TCC voltage input for 2 seconds or longer. P0724 Brake Switch Circuit High Input (3T40 Transmission) Engine running and the ECM detected a closed Brake switch input (12v) during vehicle operation under these Fault Condition The vehicle speed was over 20 mph for 6 seconds Then the vehicle speed was 5-20 mph for 3 seconds Then the vehicle speed was less than 5 mph P0724 Brake Switch Circuit High Input (4T40/4T45-E Transmission) Engine running, system voltage from 8-18v, then the ECM detected a closed Brake switch input (12v) with the VSS input over 20 mph for 6 seconds, then the VSS input from 5-20 mph for 3 seconds, then the VSS input less than 5 mph, condition met 8 times consecutively. P0725 Engine Speed Input Circuit Low Input (4L30-E Transmission) Engine running, Transmission not in Park, Reverse or Neutral, throttle position more than 12%, Transmission output speed more than 1024 rpm, then the ECM detected that the Transmission output speed to the TCM was less than 122 RPM for 4.0 seconds. P0727 Engine Speed Circuit No Signal (4L30-E Transmission) Engine running, then the ECM detected that the engine speed input was less than the lower limit, or that it was above the upper limit, or that it received an unreliable speed signal for 4 seconds. P0727 Engine Speed Circuit Low Input Fault: Key on or engine running, then the ECM detected an internal fault. Note If P0500 P0721 or P0722 are set, repair these codes first). P0730 Incorrect Gear Ratio Fault: (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 and P1810 not set, engine speed more than 500 for 5 seconds, Fuel Cutoff inactive, Transmission not in Park or Neutral, time since last gear select lever change over 6 seconds, throttle angle over 14%, VSS input over 7 mph, TFT sensor input more than 68°F, engine torque from 50-300 ft-lbs, then the ECM detected that one of the following Fault: occurred continuously for 7 seconds The gear ratio was more than 2.971 The gear ratio was 1.621 to 2.331 The gear ratio was 1.051 to 1.521 The gear ratio was 0.751 to 0.951 P0730 Incorrect Gear Ratio Fault: (4T80-E Transmission) P0101 P0102 P0103 P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0753 P0758 and P1810 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission not in Park or Neutral, time since last gear select lever change over 3 seconds, throttle angle more than 15.7 degrees, VSS input more than 7 mph, TFT sensor input over 20°C (68°F), delivered torque more than 100 ft-lbs, then the ECM detected at least one steady state adaptive cell was at its maximum and one of the following Fault: was met for four seconds The 1 st gear ratio was less than 2.871 or greater than 3.111 The 2nd gear ratio was less than 1.541 or greater than 1.711 The 3rd gear ratio was less than 0.951 or greater than 1.051 Fourth gear ratio is less than 0.651 or greater than 0.711 Reverse gear ratio is less than 2.021 or greater than 2.231 P0730 Incorrect Gear Ratio Fault: (4L30-E Transmission) Engine running, Transmission not in Park, Neutral or Reverse and not in Safety mode, the enabling Fault: for a failure of P0757 Condition or Case 1: have not been met, then with these Fault: met along with one of the following Fault:, the ECM detected Condition 1: Engine speed has not exceeded 3488 rpm and the ECM detected that the absolute slippage calculated by the TCM was more than the following predetermined amount 1st gear commanded and the output speed was over 352 rpm for 4 seconds. 2nd gear commanded and the output speed was over 576 rpm for 4 seconds. 3rd gear commanded and the output speed was more than 806 rpm for 4 seconds. Condition 2: Engine and transmission output speed have not exceeded 2,976 rpm in 3rd gear, then the ECM detected with 3rd gear commanded that the output speed was more than 806 rpm for 4 seconds. P0730 Transaxle Gears - No Gears Available Fault: Engine running at steady moderate throttle, VSS input at 0 mph, Turbine Shaft Speed (TSS) over 756 rpm, then the ECM detected, once per vehicle trip, with 1st, 2nd, 3rd or 4th gears commanded on by the ECM, that no accurate TSS pull-downs occurred. P0731 Incorrect 1st Gear Ratio (4T80-E Transmission) Fault: P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823 or P1825 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission not in P/N, time since last gear select lever change over 6 seconds, throttle angle over 10%, TFT sensor input from 68°F-271°F, delivered torque from 30-100 ft-lbs, VSS input at 5 km/h (3 mph) or more, then the ECM commanded 1 st gear "on" and received one of these Fault: for 75 ms The gear ratio was greater than 3.111 The gear ratio was 2.231 to 2.871 The gear ratio was 1.711 to 2.021 The gear ratio was 1.051 tol.541 The gear ratio was 0.711 to 0.951 The gear ratio was less 0.65 1 P0731 Transaxle - No First Gear Fault: Vehicle speed over 3 mph, Turbine Shaft Speed over 224 rpm, no turbine shaft or vehicle speed signal noise, high line pressure commanded, then the ECM detected, twice per vehicle trip, that the ratio failure counter equaled 255 for an in-gear fault, or the shift Counter was over 100 on a downshift to 1st gear in acceleration. P0732 Incorrect 2nd Gear Ratio (4T80-E Transmission) Fault: P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823 or P1825 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission not in P/N, time since the last gear select lever change over 6 seconds, TFT sensor input from 68°F-271°F, throttle angle over 10%, delivered torque from 30-100 ft-lbs, VSS input at 5 km/h (3 mph) or more, then the ECM commanded 2nd gear "on" and received one of these Fault Condition The gear ratio was greater than 3.111 The gear ratio was 2.231 to 2.871 The gear ratio was 1.711 to 2.021 The gear ratio was 1.051 to1.541 The gear ratio was 0.711 to 0.951 The gear ratio was less 0.65 1 P0732 Transaxle - No Second Gear Fault: Vehicle speed over 3 mph, Turbine Shaft Speed over 224 rpm, no turbine shaft, vehicle speed or noise codes, high line pressure commanded, then the ECM detected, twice per ignition cycle, that the ratio failure counter equaled 255 at steady state or that the shift counter went over 100 on downshift or upshift. P0733 Incorrect 3rd Gear Ratio (4T80-E Transmission) Fault: P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823 or P1825 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission not in P/N, time since last gear select lever change over 6 seconds, throttle angle over 10%, TFT sensor input from 68°F-271°F, delivered torque from 30-100 ft-lbs, VSS input at 3 mph (5 km/h) or more, then the ECM commanded 3rd gear "on" and received one of these Fault Condition The gear ratio was greater than 3.111 The gear ratio was 2.231 to 2.871 The gear ratio was 1.711 to 2.021 The gear ratio was 1.051 tol.541 The gear ratio was 0.711 to 0.951 The gear ratio was less 0.65 1 P0733 Transaxle - No Third Gear Fault: No VSS or Noise codes, VSS input over 3 mph, Turbine Shaft Speed over 224 rpm, turbine shaft and high line pressure commanded on, then the ECM detected, 2 times per ignition cycle, that the ratio failure counter equaled 255 at steady state or that the shift counter went over 100 during a downshift or an upshift. P0734 Transaxle - No Fourth Gear Fault: No Speed Shaft, Noise or VSS codes set, VSS input over 3 mph, TSS over 224 rpm, high line pressure commanded, then the ECM detected, 2 times per ignition cycle, that the ratio failure counter equaled 255 at steady state; or that the shift counter was over 100 during a downshift or an upshift. P0740 Torque Converter Clutch Not Engaging Vehicle in 3rd or 4th gear, TCC commanded on, throttle angle over 10%, then the ECM detected an engine rpm/vehicle speed ratio input that indicated no TCC lockup occurred for 10 seconds. P0740 TCC Enable Circuit Electrical (4L60-E Transmission) Engine speed over 450 rpm for 5 seconds, system voltage from 10-18v, Fuel Cutoff not active, then the ECM detected one of the following Fault: for 5 seconds Condition 1: TCC solenoid commanded on and voltage feedback remained high Condition 2: TCC solenoid commanded off and voltage feedback remained low P0734 Incorrect 4th Gear Ratio (4T80-E Transmission) Fault: P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823 or P1825 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission not in P/N, time since last gear select lever change over 6 seconds, throttle angle over 10%, TFT sensor input from 68°F-271°F, delivered torque from 30-100 ft-lbs, VSS input at 3 mph (5 km/h) or more, then the ECM commanded 4th gear "on" and received one of these Fault Condition The gear ratio was greater than 3.111 The gear ratio was 2.231 to 2.871 The gear ratio was 1.711 to 2.021 The gear ratio was 1.051 tol.541 The gear ratio was 0.711 to 0.951 The gear ratio was less 0.65 1 P0740 TCC Enable Solenoid Circuit Electrical Fault: Engine running, then the ECM detected, 2 times per vehicle trip, that the voltage on ECM circuit 422 was under 2-2.5v with the actuator switched off by the ECM. P0741 TCC System Stuck Off Fault: (4T40/4T45-E Transmission) P0121 P0122 P0123 P0502 P0503 P0742, P1810 and P1887 not set, engine running, throttle position from 8-75%, TFT input from 70-266°F, time since last gear select lever change over 6 seconds, TFP manual valve position switch indicated D2, D3 or D4, commanded gear was 2nd, 3rd or 4th, TCC commanded on for over 3 seconds, then the ECM detected the TCC slip speed was over 250 rpm, condition met for 8 seconds twice on the same trip. P0741 TCC System Stuck Off Fault: (4T80-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0742, P1820, P1822, P1823, P1825 and P1860 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, time since last gear select lever change more than 6 seconds, IMS indicates D2, D3 or D4, Transmission gear ratio indicates 2nd, 3rd or 4th gear, TFT sensor input from 68°F-271°F, throttle angle from 10-50%, engine torque from 32-159 ft-lbs, TCC solenoid commanded on, then the ECM detected that the TCC slip speed exceeded its limit for a given torque, Fault: met for five seconds. P0741 TCC System Stuck Off Fault: (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0742, P1820, P1860 and P1887 not set, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, Transmission gear range was D2, D3 or D4, time since last gear select lever change more than 6 seconds, TFT sensor input from 68-266°F, throttle angle at 4-35%, TCC PWM solenoid commanded on for over 0.5 seconds, TCC commanded to maximum apply pressure, then the ECM detected that the TCC slip speed was higher than 180 rpm two times for 7 seconds each during the same key cycle. P0741 TCC System Stuck Off Fault: No Noise or TSS codes set, engine speed over 908 rpm, TFT input over 68°F, TSS input over 224 rpm, TCC applied for 5 seconds, then the ECM did not detect any gear change for 7.5 seconds. P0742 (A, B)Torque Converter Clutch Circuit Stuck On P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0742, 1820, P1822, P1823, P1825 and P1860 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, time since last gear select lever change more than 6 seconds, IMS indicates D2, D3 or D4, Transmission gear ratio indicates 2nd, 3rd or 4th gear, TFT Sensor input from 68°F-271°F, throttle angle from 10-50%, engine torque from 32-159 ft-lbs, TCC commanded on, then the ECM detected that the TCC slip speed exceeded its limit for a given torque, Fault: met for five seconds. P0742 TCC Circuit Stuck On (4T65-E Transmission) Fault: P0121 P0122 P0123, P1860 and P1887 not set, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, engine torque from 70-200 ft-lbs, throttle position from 5-45%, TFT sensor input from 68-266°F, time since last gear range change more than 6 seconds, speed ratio less than 7.0, TCC commanded off, slip speed from -20 to +25 for 8 seconds, then the ECM detected that the TCC release switch was closed 6 times for 4 seconds each during the same key cycle. P0742 TCC System Stuck Off Fault: (4L60-E Transmission) P0107 P0108 P0122 P0123 P0502 P0503 P0740, P1810 and P1860 not set, engine speed 1000-3000 rpm, throttle position from 17-45%, Fuel Cutoff not active, engine vacuum from 0-105 kPa, engine torque from 50-400 ft-lbs, speed ratio from 0.64-1.35, commanded gear not in 1st, gear range did not change for 5 seconds, gear range is D4, TCC commanded off, vehicle speed is 15-50 mph, then the ECM detected that the TCC slip speed was from -20 to +20 rpm for over 5 seconds, Fault: occurred twice. P0742 TCC System Stuck On Fault: (4T80-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0741, P1820, P1822, P1823, P1825 and P1860 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, Transmission gear ratio indicates 2nd, 3rd or 4th gear, IMS indicates D4, TFT sensor input from 68°F-271°F, throttle angle from 14-90%, engine torque from 114-217 ft-lbs, TCC commanded off, VSS input from 10-80 mph, then the ECM detected that the TCC slip speed was from -20 to +35, Fault: met for 5 seconds during the same vehicle trip. P0742 Torque Converter Clutch Circuit Stuck On Fault: No ECM or TCM codes set, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, MAP input from 0-105 kPa, TCC commanded gear not in 1st, gear ratio indicates 2nd, 3rd or 4th, throttle position at 14-18%, engine torque from 80-170 ft-lbs, then the ECM detected the TCC slip speed input was from -20 rpm to 30 rpm (3 occurrences), condition met for 5 seconds. P0742 TCC System Stuck On Fault: (4T40/4T45-E Transmission) P0121 P0122 P0123 and P1887 not set, engine running, throttle position from 12-75%, time since last gear select lever change over 6 seconds, TCC commanded off, then the ECM detected that the TCC release switch was closed (release fluid not present), condition met for 6 seconds four times during same trip. P0742 TCC System Stuck On (4L30-E Transmission) Fault: P0120 P0121 P0122 P0722 P0725 P0727 P0743 not set, engine speed from 15-74 mph, throttle angle from 18-100%, engine torque from 68-271 ft-lbs (50-200 Nm), commanded gear not in 1st, gear range is D4, TCC commanded off, then the ECM detected that the TCC slip speed was from -20 to +64 rpm, Fault: met for 3 seconds. P0742 TCC System Stuck On Fault: Engine speed over 908 rpm, TCC commanded to release for over 250 ms, TSS input from 224-2800 rpm, load value over 100, then the ECM detected, twice per vehicle trip, that the speed delta across TCC was less than 84 rpm for 4 seconds. P0742 TCC System Stuck On Fault: (3T40 Transmission) 1000 P0121 P0122 and P0123 not set, engine speed 1500-4000 rpm, TCC commanded off, engine torque more than 10 ft-lbs time since last selector lever change more than 6 seconds, speed ratio - from 0.9-1.375, throttle position over 8%, TCC slip speed from -20 to - +20 rpm for 10 seconds, VSS input from 35-75 mph, then the ECM detected - two or more counts where the TCC was stuck on. P0743 TCC Enable Circuit Electrical (4L30-E Transmission) Engine running with the TCC commanded off, TCM high side driver closed, then the ECM detected a short to ground (TCM detected less than 2.45v for 0.18 seconds on the control circuit), or an open circuit (TCM detected 2.45-3.53 volts for 0.18 seconds on the control circuit), or it detected a short to battery (TCM detects more than 4.02 volts for 0.18 seconds on the control circuit). - 7044 ECM detected that the voltage on ECM circuit 422 was more than 2-2.5v with the TCC solenoid valve on (twice in one trip). P0744 TCC Circuit Intermittent Fault: ECM detected, twice per vehicle trip, that a grounded, open or short condition existed in the TCC actuator circuit for a time period less than that required to set P0740 and P0743. P0745 Pressure Control Solenoid - Pressure Low Fault: Engine running, then the ECM detected, once per vehicle trip, that P0731 P0732 P0733 and P0734 were set (no forward gears are allowed if these codes are set). P0746 Pressure Control Solenoid Circuit Low Fault: Engine running, then the ECM detected, twice per vehicle trip, voltage monitored at circuit 1530 of under 2-2.5v with the line pressure actuator switched off by the ECM. P0746 Pressure Control Solenoid Circuit High Fault: Engine running, then the ECM detected, twice per vehicle trip, voltage monitored at circuit 1530 was over 2-2.5v with Transaxle Fluid Pressure Actuator switched on. P0748 Transaxle Pressure Control Solenoid (4L60-E Transmission) Engine running, system voltage from 10-18v, then the ECM detected that the Pressure Control solenoid duty cycle reached its high limit of around 95% or its low limit of around 0%. P0748 Transaxle Pressure Control Solenoid (4T80-E Transmission) Engine runtime over 1 second, system voltage over 10.7v, then the ECM detected that the ECM solenoid feedback circuit indicated that a short to ground, an open circuit or a short to power condition was present, Fault: met for 100 milliseconds. P0748 Pressure Control Solenoid Electrical Fault: P0560 not set, engine running, then the ECM detected an electrical high or low limit on the P/C solenoid circuit for 100 ms. P0748 Pressure Control Solenoid (4T40-E/4T45-E Transmission) Engine running, system voltage 8-18v, then the ECM detected the Pressure Control PWM solenoid signal was at 0% or was at 95%. P0748 Pressure Control Solenoid Circuit (4L30-E Transmission) Key on or engine running with the TCC commanded off, TCM high side driver closed, TCM commands the ECM solenoid current, then the ECM detected one of these Fault: for 54 milliseconds An open circuit or short to ground (the feedback voltage is low) A short to power (the feedback voltage remains high) P0748 Transaxle Fluid Line Pressure High Fault: Engine running, then the ECM detected 5 or more shifts when the upshift adapter error was less than 112. Note This code indicates an over-pressure condition. The condition must exist after the upshift pressure adaptive reaches the lower limit of 288 kPa. P0749 Pressure Control Solenoid Circuit Intermittent Fault: Engine running, then the ECM detected, twice per vehicle trip, a grounded, open or shorted condition in a line actuator circuit for an amount of time less than that required to set P0768 and P0747. P0750 Shift Solenoid I Performance (MS7 4-Speed Transaxle) Engine running, vehicle in Drive at cruise speed, then the ECM detected that the Actual gear did not match the Commanded gear. P0751 Transaxle 1-2 Shift Solenoid Performance Fault: No ECM or TCM codes set, engine speed over 500 rpm for 5 seconds, not in Fuel Cutoff, VSS over 5 mph, TFT sensor input at 68-266°F, Traction Control off, Transaxle range switch indicating D4, then the ECM detected the wrong shift pattern. P0751 1-2 Shift Solenoid Valve Performance (4L60-E Transmission) P0122 P0123 P0502 P0503 P0740 P0742 P0753 P0758 P0785, P1810 and P1860 not set, engine speed over 450 rpm for 5 seconds, Fuel Cutoff inactive, VSS input over 5 mph, throttle from 10-35%, throttle angle constant (± 7%), gear range is D4, TFT input from 68-266°F, 1-2, 2-3 and 3-4 shift solenoid and TCC commanded on by the ECM, then the ECM detected that the following Fault: occurred three times Within 2 seconds, the engine speed in 2nd gear was 80 RPM greater than the last speed in 1st gear Within 2 seconds, the engine speed in 3rd gear is 100 RPM less than the last speed in 2nd gear Within 2 seconds, the engine speed in 4th gear is 10 RPM greater than the last speed in 3rd gear Then with these Fault: met, one of these Fault: occurred Condition 1: The speed ratio was 0.85 to 1.2 (the speed ratio is the engine speed divided by transmission output speed), and the TCC slip speed was 200-1000 RPM for 4 seconds. Condition 2: The speed ratio was 0.6 to 0.8, and the TCC slip speed was -20 to +50 RPM for 4 seconds. P0751 1-2 Shift Solenoid Valve Performance (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0730 P0753 P0758, P1810, P1814 and P1860 not set, system voltage from 8-18v,engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, VSS input over 5 mph, Transmission not in Park, Neutral or Reverse, throttle angle over 10%, TFT input from 68-264°F, engine torque from 20-200 ft-lbs, ISS input from 150-8000 rpm, OSS input more than 300 rpm, time since last gear range change more than 1 second, then the ECM detected that the following Fault: occurred twice during one key cycle Condition 1: The ECM commanded 1st gear and then the gear ratio indicated 2nd gear (1.521 to 1.621) for 1 second. Condition 2: The ECM commanded 4th gear and then the gear ratio indicated 3rd gear (0.951 to 1.051) for 1 second. P0751 Transaxle 1-2 Shift Solenoid Performance No ECM or TCM codes set, engine speed over 500 rpm for 5 seconds, not in Fuel Cutoff, VSS over 5 mph, TFT sensor input at 68-266°F, Traction Control off, Transaxle range switch indicating D4, then the ECM detected the wrong shift pattern. P0751 Shift Solenoid 1 Performance (M60 3-Speed Transaxle) Engine warmup completed, engine running with gear selector in Drive, then the ECM detected by comparing the engine speed to the VSS input that the value was out of the acceptable range. Note Shift Solenoid I can pass an electrical check and set a code. P0751 1-2 Shift Solenoid - No 1st or 4th Gear (4T80-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823, P1825, P1842, P1843, P1845 and P1847 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, IMS indicates D1, D2, D3 or D4, TFT sensor input from 68°F-271°F, engine torque from 59-291 ft-lbs), throttle angle over 7.5%, engine torque from 59-291 ft-lbs, VSS input over 5 mph (8 km/h), then the ECM detected that the following Fault: occurred twice during the same vehicle trip The ECM commanded 1st gear and the gear ratio was 1.541 1.711 (2nd gear) for 1.5 seconds The ECM commanded 4th gear and the gear ratio was 0.951 1.051 (3rd gear) for 4 seconds P0751 1-2 Shift Solenoid Performance (4T40-E/4T45-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0753 P0758 and P1810 not set, engine running, TFT input more than 70°F, TFP manual valve switch indicated not in Park, Neutral or Reverse, throttle position over 8%, VSS input over 5 mph, engine torque more than 10 ft-lbs, then the ECM detected that one of the following cases occurred twice during the same trip Condition or Case 1: 1st gear commanded & gear ratio was 1.54-1.711 for 2 seconds 4th gear commanded & gear ratio was 0.91-1.071 for 5 seconds condition or Case 2: 2nd gear commanded & gear ratio was 2.87-3.131 for 4 seconds 3rd gear commanded & gear ratio was 0.61-1.721 for 5 seconds P0751 1-2 Shift Solenoid Valve - No 2nd or 3rd Gear (4L30-E) P0705 P0722 P0743 P0753 P0758, P1600, P1625 and P1890 not set, engine running with Transmission in drive (D4), then the ECM detected one of the following cases occurred Condition or Case 1: Throttle position more than 30.8% Engine speed from 3104-3904 rpm The commanded gear was 2nd gear for more than 700 ms Transmission speed was greater than 992 rpm Engine torque was more than 68ft-Ib (50 Nm) Then the ECM detected that the TCC slip speed was from 1400 RPM for 0.9 seconds. Condition or Case 2: Throttle position more than 24.9% Engine speed from 1216-2016 rpm The commanded gear was 3rd gear for more than 700 ms Transmission speed was greater than 2016 rpm Engine torque was more than 68ft-Ib (50 Nm) Then the ECM detected that the TCC slip speed was from -1000 to -100 RPM for 3 seconds. P0752 1-2 Shift Solenoid - No 2nd or 3rd Gear (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0730 P0753 P0758, P1810, P1814 and P1860 not set, system voltage from 8-18v, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, VSS input over 5 mph, Transmission not in Park, Neutral or Reverse, throttle angle over 10%, TFT input from 68-264°F, engine torque from 20-200 ft-lbs, ISS input from 150-8000 rpm, OSS input more than 300 rpm, time since last gear range change more than 1 second, then the ECM detected that the following Fault: occurred twice during one key cycle Condition 1: The ECM commanded 2nd gear and then the gear ratio indicated 1 st gear (2.871 to 2.971) for 1 second. Condition 2: The ECM commanded 3rd gear and then the gear ratio indicated 4th gear (0.651 to 1.751) for 1 second. P0752 1-2 Shift Solenoid - No 2nd or 3rd Gear (4T80-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823, P1825, P1842, P1843, P1845 and P1847 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, IMS indicates D1, D2, D3 or D4, TFT sensor input from 68°F-271°F, throttle angle over 7.5%, engine torque from 59-291 ft-lbs, VSS input over 5 mph (8 km/h), then the ECM detected that the following Fault: occurred twice during the same vehicle trip The ECM commanded 2nd gear and the gear ratio was 2871 3.111 (1st gear) for 2 seconds The ECM commanded 3rd gear and the gear ratio was 0.651 0.711 (4th gear) for 4 seconds P0752 1-2 Shift Solenoid - No 1st or 4th Gear (4L30-E Transmission) P0705 P0722 P0743 P0753 P0758, P1600, P1625 and P1890 not set, engine running with Transmission in drive (D4), then the ECM detected one of the following Fault Condition Condition 1: Throttle position more than 41.1 %, engine speed 2400-3008 rpm The commanded gear was 1 st gear for more than 1.5 seconds Transmission output speed was greater than 704 rpm Engine torque was more than 68 ft-lb (50 Nm) Then the ECM detected that the TCC slip speed was from -711 to 350 RPM for 600 milliseconds two times. Condition 2: Throttle position more than 15%, engine speed 1696-4992 rpm The commanded gear was 4th gear for more than 500 ms Transmission speed was greater than 1696 rpm Engine torque was more than 68 ft-lb (50 Nm) TCC was commanded on Then the ECM detected that the TCC slip speed was from 666 to 1000 RPM for 5 seconds two times. P0753 Transaxle 1-2 Shift Solenoid Electrical (4T60-E Transmission) Engine speed over 500 rpm, Fuel Shutoff inactive, system voltage 10-18v, and the ECM detected either a high or low signal from the 1-2 Shift Solenoid control circuit at the wrong time. P0753 Transmission 1-2 Shift Solenoid (4L60-E Transmission) Engine speed over 450 rpm for 5 seconds, system voltage 10-18v, Fuel Cutoff not active, then the ECM detected for 5 seconds Condition 1: 1-2 solenoid commanded on and voltage feedback remained high Condition 2: 1-2 solenoid commanded off and voltage feedback remained low P0753 Transaxle 1-2 Shift Solenoid Electrical (4T80-E Transmission) No ECM or TCM codes set, engine runtime over 5 seconds, then the ECM detected the 1-2 Shift Solenoid circuit was grounded, open or shorted, 17 out of 20 samples within 5 seconds. P0753 Transaxlel-2 Shift Solenoid Electrical Fault P0560 not set, Fuel Cutoff inactive, engine speed over 500 rpm for 5 seconds, then the ECM detected a low or High Input reading at the 1-2 Shift Solenoid control circuit at the wrong time. P0753 1-2 Shift Solenoid Circuit (4T40-E/4T45-E Transmission) Key on or engine running, system voltage from 8-18v, and the 1-2 shift solenoid duty cycle was commanded on and its feedback voltage remained high (B+), or that the 1-2 solenoid was commanded off and its feedback voltage remained low (Ov), the ECM detected either condition was met for 4.3 seconds. P0753 Shift Solenoid I Electrical (M60 3-Speed Transaxle) Engine running, gear shift selector in Drive at cruise speed, then the ECM did not detect any voltage drop across the Direct Clutch solenoid circuit after an attempt to energie the solenoid. P0753 Transmission 1-2 Shift Solenoid (4T65-E Transmission) Engine speed over 500 rpm for 5 seconds, system voltage 10-18v, Fuel Cutoff not active, then the ECM detected for 5 seconds Condition 1: 1-2 solenoid commanded on and voltage feedback remained high Condition 2: 1-2 solenoid commanded off and voltage feedback remained low P0753 Shift Solenoid I Electrical (MS7 4-Speed Transaxle) Engine running, gear selector in Drive, then the ECM detected a short to ground, an open circuit or a short to power in Shift Solenoid 1 after an electrical change of state occurred. P0753 1-2 Shift Solenoid Circuit Electrical (4L30-E Transmission) Key on or engine running, TCM High Side driver closed, then the ECM detected that the 1-2/3-4 shift solenoid was commanded off and the feedback voltage less than 2.45v, the 2-3 shift solenoid was commanded off and the feedback voltage was from 2.45 3.53v, or that the 2-3 Shift solenoid was commanded on and the feedback voltage was over 4.02v for 180 milliseconds. P0755 Transaxle Shift Solenoid 'B' Performance Fault: Engine running, TIP sensor input at 3-10%, VSS input more than 5 mph, then the ECM determined by comparing the Shift Solenoid 'B' inputs that the vehicle was in the wrong gear. P0755 Shift Solenoid 2 Performance (MS7 4-Speed Transaxle) Engine running, vehicle in Drive at cruise speed, then the ECM detected that the Actual gear did not match the Commanded gear. P0756 Transaxle 2-3 Shift Solenoid Performance P0560 not set, not in Fuel Shut-off mode, engine speed over 500 rpm for 5 seconds, TFT sensor input over 68°F, VSS over 20 mph, then with throttle angle over 27%, the ECM detected an incorrect Transaxle Range Switch input or incorrect gear ratio. P0756 2-3 Shift Solenoid Valve Performance (4L60-E Transmission) P0122 P0123 P0502 P0503 P0740 P0742 P0753 P0758 P0785, P1810 and P1860 not set, engine speed over 450 rpm for 5 seconds, Fuel Cutoff inactive, VSS input more than 5 mph, throttle angle from 10-35%, throttle angle constant (± 7%), gear range is D4, TFT input from 68-266°F, 1-2, 2-3 and 3-4 shift solenoid and TCC commanded on by the ECM, then the ECM detected that the following Fault: occurred three times 3rd gear commanded on for 2-5 seconds, and speed ratio in 3rd gear does not drop more than 0.3 from last speed ratio in 2nd gear The TCC slip speed in 3rd gear remains 300 rpm higher than the last TCC slip speed in 2nd gear Within 2 seconds, the engine speed in 4th gear is 10 RPM greater than the last speed in 3rd gear Then with these Fault: met, one of these Fault: occurred Condition 1: With 1st gear commanded on for 2 seconds, the transmission output speed was 400-1500 rpm, the speed ratio was 0.5-3.0, and the TCC slip speed was -3000 to -100 rpm for one second. Condition 2: With 4th gear commanded on for one second, the transmission output speed was 1400-2500 RPM, the speed ratio was 2.05 to 8, and the TCC slip speed was 1000 to 4000 RPM for 1 second. P0756 2-3 Shift Solenoid Valve Performance (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0730 P0753 P0758, P1810, P1814 and P1860 not set, system voltage from 8-18v, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, VSS input over 5 mph, Transmission not in Park, Neutral or Reverse, throttle angle over 10%, TFT input from 68-264°F, engine torque from 60-200 ft-Ibs, ISS input from 150-8000 rpm, OSS input more than 300 rpm, time since last gear range change more than 1 second, then the ECM detected that the following Fault: occurred twice during one key cycle Condition 1: The ECM commanded 1st gear and then the gear ratio indicated 4th gear (0.651 to 0.751) for 1 second. Condition 2: The ECM commanded 2nd gear and then the gear ratio indicated 3rd gear (0.951 to 1.051) for 1 second. P0756 2-3 Shift Solenoid - No 1st or 2nd Gear (4T80-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823, P1825, P1842, P1843, P1845 and P1847 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, IMS indicates D1, D2, D3 or D4, TFT sensor input from 68°F-271°F, throttle angle over 10%, engine torque from 59-291 ft-lbs during 1st gear, and 7-291 ft-lbs during 2nd gear command, VSS input over 5 mph, then the ECM detected that the following Fault: occurred twice during the same vehicle trip The ECM commanded 1st gear and the gear ratio was 0.651 - 0.711 (4th gear) for 1 second The ECM commanded 2nd gear and the gear ratio was 0.951 1.051 (3rd gear) for 1 second P0756 Transaxle 2-3 Shift Solenoid Performance P0560 not set, not in Fuel Shut-off mode, engine speed over 500 rpm for 5 seconds, TFT sensor input over 68°F, VSS over 20 mph, then with throttle angle over 27%, the ECM detected an incorrect Transaxle Range Switch input or incorrect gear ratio. P0756 2-3 Shift Solenoid Performance (4T40-E/4T45-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0753 P0758, P1644 and P1810 not set, engine running, TFT input more than 70°F, TFP manual valve switch indicated not in Park, Neutral or Reverse, throttle position over 8%, VSS input over 5 mph, engine torque more than 10 ft-lbs, then the ECM detected that one of the following cases occurred twice during the same trip Condition or Case 1: 1st gear commanded & gear ratio was 0.61-0.721 for 2 seconds 2nd gear commanded & gear ratio was 0.91-1.071 for 2 seconds Condition or Case 2: 3rd gear commanded & gear ratio was 1.54-1.711 for 3 seconds 3rd gear commanded & gear ratio was 2.87-3.131 for 4 seconds P0756 Shift Solenoid 2 Performance (M60 3-Speed Transaxle) Engine warmup completed, engine running with gear selector in Drive, then the ECM detected by comparing the engine speed to the VSS input that the value was out of the acceptable range. Note Shift Solenoid 2 can pass an electrical check and set a code. P0756 2-3 Shift Solenoid - No 1st or 2nd Gear (4L30-E Transmission) P0705 P0722 P0743 P0753 P0758, P1600, P1625 and P1890 not set, engine running with Transmission in drive (D4), then the ECM detected one of the following Fault Condition Condition 1: Throttle position more than 41.1 Engine speed from 2400-3008 rpm The commanded gear was 1 st gear for more than 1.5 seconds Transmission output speed was greater than 704 rpm Engine torque was more than 68 ft-lb (50 Nm) Then the ECM detected that the TCC slip speed was from less than -3000 to +100 RPM for 1.5 seconds two times. Condition 2: Throttle position more than 4.18% Engine speed from 2592-3008 rpm The commanded gear was 2nd gear for more than 700 ms Transmission output speed was greater than 1408 rpm Engine torque was more than 68 ft-lb (50 Nm) Then the ECM detected that the TCC slip speed was from more than -500 to 400 RPM for 1.5 seconds two times. P0756 Transaxle Shift Solenoid 2 Circuit Low Fault: Engine running, then the ECM detected that the voltage monitored at circuit 1222 was under 2-2.5v with 2nd Gear Actuator turned off by the ECM, condition met twice per ignition cycle. P0757 2-3 Shift Solenoid - No 3rd or 4th Gear (4T65-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717 P0730 P0753 P0758, P1810, P1814 and P1860 not set, system voltage from 8-18v, engine speed over 500 rpm for 5 seconds, Fuel Cutoff inactive, VSS input over 5 mph, Transmission not in Park, Neutral or Reverse, throttle angle over 10%, TFT input from 68-264°F, engine torque from 20-200 ft-lbs, ISS input from 150-8000 rpm, OSS input more than 300 rpm, time since last gear range change more than 1 second, then the ECM detected that the following Fault: occurred twice during one key cycle Condition 1: The ECM commanded 3rd gear and then the gear ratio indicated 2nd gear (1.521 to 1.621) for 1 second. Condition 2: The ECM commanded 4th gear and then the gear ratio indicated 1 st gear (2.871 to 2.971) for 1 second. P0757 2-3 Shift Solenoid - No 3rd or 4th Gear (4T80-E Transmission) P0121 P0122 P0123 P0502 P0503 P0716 P0717, P1820, P1822, P1823, P1825, P1842, P1843, P1845 and P1847 not set, engine runtime over 5 seconds, Fuel Cutoff inactive, IMS indicates D1, D2, D3 or D4, TFT sensor input from 68°F-271°F, throttle angle over 10%, engine torque from 59-291 ft-lbs, VSS input over 5 mph, then the ECM detected that the following Fault: occurred twice during the same vehicle trip The ECM commanded 3rd gear and the gear ratio was 1.541 1.711 (2nd) for 3 seconds The ECM commanded 4th gear and the gear ratio was 2.871 3.111 (1st) for 2 seconds P0757 2-3 Shift Solenoid Valve - No 3rd or 4th Gear (4L30-E) P0705 P0722 P0743 P0753 P0758, P1600, P1625 and P1890 not set, engine running with gear selector in Drive, then Condition 1: Throttle position more than 26.4% Engine speed from 3104-4192 rpm The commanded gear was 3rd gear for more than 700 ms Transmission output speed was greater than 1088 rpm Engine torque was more than 68 ft-lb (50 Nm) Then the ECM detected that the TCC slip speed was from 1200 to 1800 rpm for 3 seconds two times. Condition 2: Throttle position more than 13.8% Engine speed from 3008-6016 rpm The commanded gear was 4th gear for more than 500 ms Transmission output speed was greater than 1216 rpm Engine torque was more than 0 ft-lb (0 Nm) Then the ECM detected that the TCC slip speed was from - to 6000 rpm for 1.3 seconds two times. P0758 (1 T)Transmission 2-3 Shift Solenoid Electrical Fault P0560 not set, not in Fuel Shut-off mode, engine speed over 500 rpm for 5 seconds, then the ECM detected a low or high input reading at the 2-3 Shift Solenoid Control circuit at the wrong time. P0758 Transmission 2-3 Shift Solenoid (4T65-E Transmission) Engine speed over 500 rpm for 5 seconds, system voltage 10-18v, Fuel Cutoff not active, then the ECM detected for 5 seconds Condition 1: 1-2 solenoid commanded on and voltage feedback remained high Condition 2: 1-2 solenoid commanded off and voltage feedback remained low P0758 Transaxle 2-3 Shift Solenoid Electrical (4T80-E Transmission) No ECM or TCM codes set, engine runtime over 5 seconds, then the ECM detected that the 2-3 Shift solenoid circuit was open, grounded or shorted to power, 17 out of 20 samples in 5 seconds. P0758 Transmission 2-3 Shift Solenoid (4L60-E Transmission) Engine speed over 450 rpm for 5 seconds, system voltage 10-18v, Fuel Cutoff not active, then the ECM detected for 5 seconds Condition 1: 2-3 solenoid commanded on and voltage feedback remained high Condition 2: 2-3 solenoid commanded off and voltage feedback remained low P0758 Transmission 2-3 Shift Solenoid Electrical Fault P0560 not set, not in Fuel Shut-off mode, engine speed over 500 rpm for 5 seconds, then the ECM detected a low or High Input reading at the 2-3 Shift Solenoid Control circuit at the wrong time (out of normal calibration). P0758 2-3 Shift Solenoid Circuit (4T40-E/4T45-E Transmission) Key on or engine running, system voltage from 8-18v, and the 2-3 shift solenoid duty cycle was commanded on and its feedback voltage remained high (B+), or that the 2-3 solenoid was commanded off and its feedback voltage remained low (Ov), the ECM detected either condition was met for 4.3 seconds. P0758 Shift Solenoid 2 Electrical (M60 3-Speed Electrical) Engine running, then the ECM did not detect any voltage drop Macross the 2nd Brake solenoid circuit after it was commanded on. P0758 Shift Solenoid 2 Electrical (MS7 4-Speed Electrical) Engine running, gear selector in Drive, then the ECM did not detect any voltage drop across Shift solenoid 2 with the solenoid enabled. P0758 2-3 Shift Solenoid Circuit Electrical (4L30-E Transmission) Key on or engine running, TCM High Side driver closed, then the ECM detected that the 1-2/3-4 shift solenoid was commanded off and the feedback voltage was less than 2.45v, the 2-3 shift solenoid was commanded off and the feedback voltage was from 2.45-3.53v, or with the 2-3 Shift solenoid commanded on that the feedback voltage was over 4.02v, condition met for 180 ms. P0758 Transaxle Shift Solenoid 2 High Circuit Fault: Engine running, then the ECM detected that the voltage monitored at CKT 1222 was over 2-2.5v with the 2nd Gear Actuator energized (this test must fail twice on one trip to set this code). P0759 Transaxle Shift Solenoid 2 Circuit Intermittent Fault: Engine running, then the ECM detected, twice per vehicle trip, that the 2nd Gear Actuator circuit was open, grounded or shorted (a time period less than that needed to set P0756 P0758).P0761 Transaxle Shift Solenoid 3 Circuit Low Input Fault: Engine running, then the ECM detected that the voltage monitored at CKT 1223 of under 2-2.5v with 3rd Gear Actuator energied (this test must fail twice on one trip to set this code). P0763 Transaxle Shift Solenoid 3 High Input Fault: Engine running, then the ECM detected, twice per vehicle trip, that the voltage monitored at Circuit 1223 was over 2-2.5v with the 3rd Gear Actuator switched on by the ECM. P0764 Transaxle Shift Solenoid 3 Circuit Intermittent Fault: Engine running, then the ECM, detected per vehicle trip, that the 3rd Gear Actuator circuit had failed for a period of time less than that required to set P0761 and P0763. P0766 Transaxle Shift Solenoid 4 Circuit Low Input Fault: Engine running, then the ECM detected, twice per vehicle trip, that the voltage monitored at circuit 898 was under 2-2.5v with 4th Gear Actuator switched off by the ECM. P0768 Transaxle Shift Solenoid 4 Circuit High Input Fault: Engine running, then the ECM detected the voltage monitored at circuit 898 was over 2-2.5v with the 4th Gear Actuator switched on. P0769 Transaxle Shift Solenoid 4 Circuit Intermittent Fault: Engine running, then the ECM detected an intermittent fault in the 4th Gear Actuator circuit (the fault did not set P0766 and P0768). P0770 Lockup Solenoid (MS7 4-Speed Transaxle) Fault: Engine running at cruise speed in Drive, then the ECM detected that TCC Lockup did not occur after it was commanded on, or that TCC remained in lockup after it was commanded off. P0771 Lockup Solenoid (MS7 4-Speed Transaxle) Engine running, vehicle at cruise speed in Drive, then the ECM detected that TCC Lockup did not occur after it was commanded on, or that TCC remained in lockup after it was commanded off. P0773 Lockup Solenoid Electrical (MS7 4-Speed Transaxle) Engine running, vehicle in Drive at cruise speed, and the ECM detected a short to ground, an open circuit or a short to power in the TCC Solenoid after the solenoid was commanded on and off. P0780 Transaxle Shift Hydraulic/Mechanical Diagnosis Engine warmed up to normal temperature, then the ECM detected the engine speed (as compared to vehicle speed) was not within acceptable range with the vehicle running in Drive gear. P0781 Transaxle Shift Solenoid 2 Performance Fault: Engine running, 1st gear commanded on, no noise detected on the TSS or VSS signals, VSS over 3 mph, TSS over 224 rpm, speed ratio across the torque converter less than 180, Calculated Engine Load value over 20%, then the ECM detected twice that the ratio of TSS to VSS equaled that of the second gear input. P0782 Transaxle Shift Solenoid 3 Performance Fault: Engine running with 1st gear commanded on, no noise detected on TSS or VSS signals, VSS over 3 mph, TSS over 224 rpm, speed ratio across the torque converter less than 180, calculated engine load value over 20%, then the ECM detected twice that the ratio of TSS to VSS equaled that of the 3rd gear input, Fault: met for over 3 seconds. P0783 Transaxle Shift Solenoid 4 Performance Fault: Engine running with first gear commanded on, no noise detected on TSS or VSS signals, VSS over 3 mph, TSS over 224 rpm, then the ECM detected twice that the TSS to vehicle speed ratio equaled that of the 4th gear input for over 200 ms. P0785 Transmission 3-2 Shift Solenoid (4L60-E Transmission) Engine speed over 450 rpm for 5 seconds, system voltage 10-18v, Fuel Cutoff not active, then the ECM detected for 5 seconds Condition 1: 3-2 solenoid commanded on and voltage feedback remained high Condition 2: 3-2 solenoid commanded off and voltage feedback remained low P0801 Reverse Inhibit Solenoid Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected the Actual and Commanded state of the Reverse Inhibit solenoid circuit did not match, Fault: met for 5 seconds. P0803 Skip Shift Solenoid Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Skip Shift solenoid circuit did not match, Fault: met for 5 seconds. P0804 Skip Shift Lamp Control Circuit Fault: Engine speed over 400 rpm, system voltage from 6-18v, then the ECM detected that the Actual and Commanded state of the Skip Shift lamp circuit did not match, Fault: met for 5 seconds.