Operation CHARM: Car repair manuals for everyone.

Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection

1. DRAIN ENGINE COOLANT.
2. REMOVE ENGINE COOLANT TEMPERATURE (ECT) SENSOR.





- Disconnect the engine wire protector from the 3 brackets.
- Disconnect the ECT sensor connector.





- Using a 19 mm deep socket wrench, remove the ECT sensor and gasket.
3. INSPECT ECT SENSOR.





Using an ohmmeter, measure the resistance between the terminals.

Resistance: Refer to the image above.

If the resistance is not as specified, replace the ECT sensor.
4. REINSTALL ECT SENSOR.
- Using a 19 mm deep socket wrench, install the ECT sensor and gasket.

Torque: 20 Nm (14 ft lb)

- Connect the ECT sensor connector.
- Install the engine wire protector to the 3 brackets.
5. REFILL ENGINE COOLANT.