3 L4-2.5L (2010)
Engine - Coolant Temperature Sensor/Switch: Testing and Inspection
ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION [LF, L5]
ECT Sensor No.1 Inspection
1. Remove the battery cover. See: Starting and Charging/Battery/Service and Repair/Removal and Replacement
2. Disconnect the negative battery cable.
3. Drain the engine coolant. See: Service Precautions
4. Remove the battery and battery tray. See: Starting and Charging/Battery/Service and Repair/Removal and Replacement
5. Disconnect the ECT sensor No.1 connector.
6. Remove the ECT sensor No.1. See: 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.
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If not as specified, replace the ECT sensor No.1.
See: Service and Repair
ECT sensor No.1 Specification
ECT Sensor No.2 Inspection
1. Remove the battery cover. See: Starting and Charging/Battery/Service and Repair/Removal and Replacement
2. Disconnect the negative battery cable.
3. Drain the engine coolant. See: Service Precautions
4. Disconnect the ECT sensor No.2 connector.
5. Remove the ECT sensor No.2. See: 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.
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If not as specified, replace the ECT sensor No.2.
See: Service and Repair
ECT sensor No.2 Specification
