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

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION [MZR 2.0, MZR 2.5]

ECT Sensor No.1

Resistance inspection

WARNING:
- When the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable. Removal and Replacement

3. Drain the engine coolant. Service and Repair

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 ECT sensor No.1 terminals A and B.






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

Specification





ECT Sensor No.2 Inspection

Resistance inspection

WARNING:
- When the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable. Removal and Replacement

3. Drain the engine coolant. Service and Repair

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 ECT sensor No.2 terminals A and B.






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

Specification