The ECT sensor is one of the most
important components on a modern car. It tells how hot or cold the
engine coolant. But, there are specifics to this sensor. Making the
wrong assumption will cause trouble for you, the DIY-Tech or
auto-man-woman. Remember, just because the computer says so, it
doesn't mean the ECT sensor is bad.
Theory of Operation
Conditions that Affect Operation
Component Testing
