Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION

1. Remove the ECT sensor.
2. Place the ECT sensor in water with a thermometer, and heat the water gradually.

Specification:

3. Measure the resistance between the ECT sensor terminals using an ohmmeter.
- If not as specified, replace the ECT sensor.

ECT sensor signal characteristic (Reference):