Checking Engine Coolant Temperature (ECT) Signal:

Checking the engine temperature signal

Checking the engine temperature sensor
- Check that the engine temperature signal indicates a reasonable temperature compared to the assessed engine temperature.

Hint: The comparison should be made for both a cold and warm engine or at the temperature where problems arise.

Hint: Check the engine temperature sensor for contact resistance and oxidation following Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.

Remedy as necessary.





Was a fault detected?

Yes - FAULT FOUND

No - No Fault Found

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