Checking Engine Coolant Temperature (ECT) Sensor Signal

Checking the engine coolant temperature (ECT) sensor

Checking the engine coolant temperature (ECT) sensor
- Check that engine coolant temperature (ECT) sensor displays a temperature within its permitted range compared to the temperature which the engine is determined to have

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

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

Other information:
- For resistance values, see Component specifications Specifications
- For information about signals on 5 cylinder engines, see Signal specification Signal Specifications
- For information about signals on 6 cylinder engines, see Signal specification Signal Specifications
- To access or replace the engine coolant temperature (ECT) sensor, see
- Checking wiring and terminals Checking Wiring and Terminals.
Remedy as necessary.





Continue - FAULT FOUND

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