Checking the Engine Coolant Temperature (ECT) sensor

Checking the engine coolant temperature (ECT) sensor

Checking the engine coolant temperature (ECT) sensor
Check that the signal from the engine coolant temperature (ECT) sensor is reasonable in comparison with the temperature the engine is considered to be at.

Hint: The comparison should be made both with the engine cold and with the engine at operating temperature. Or at the temperature at which the problem occurs.

Check the engine coolant temperature (ECT) sensor. Check for contact resistance and oxidation.

Other information:
- For specifications see Engine coolant temperature (ECT) sensor Specifications
- For the signal table, see Signal specification Signal Description / Specification
- To replace the engine coolant temperature (ECT) sensor, see Engine coolant temperature (ECT) sensor, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.

Is the engine coolant temperature (ECT) sensor functioning correctly?

Yes - No Fault Found

No - Replacing the component

-------------------------------------------------

Replacing the component
Try a new engine coolant temperature (ECT) sensor according to Engine coolant temperature (ECT) sensor, replacing Service and Repair.


Continue - Fault Found

-------------------------------------------------