Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION [L3 WITH TC]

ECT Sensor No.1 Inspection

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable.

3. Drain the engine coolant. Service Precautions

4. Remove the battery and battery tray. Removal and Replacement

5. Disconnect the ECT sensor No.1 connector.

6. Remove the ECT sensor No.1. Service and Repair

7. Place the ECT sensor No.1 in water with a thermometer, and heat the water gradually.

8. Measure the resistance between the ECT sensor No.1 terminals A and B using an ohmmeter.






- If not as specified, replace the ECT sensor No.1.
Service and Repair
ECT sensor No.1 Specification





ECT Sensor No.2 Inspection

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable.

3. Drain the engine coolant. Service Precautions

4. Disconnect the ECT sensor No.2 connector.

5. Remove the ECT sensor No.2. Service and Repair

6. Place the ECT sensor No.2 in water with a thermometer, and heat the water gradually.

7. Measure the resistance between the ECT sensor No.2 terminals A and B using an ohmmeter.






- If not as specified, replace the ECT sensor No.2.
Service and Repair
ECT sensor No.2 Specification