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

ECT SENSOR INSPECTION
1. Drain engine coolant.
2. Remove ECT sensor.
- Disconnect the ECT sensor connector.





- Using SST, remove the ECT sensor and gasket.
SST 09205-76030
3. Inspect ECT sensor.





- Using an ohmmeter, measure the resistance between the terminals.





Resistance: Refer to the graph

- If the resistance is not as specified, replace the ECT sensor.
4. Reinstall ECT sensor.
- Install a new gasket to the ECT sensor.





- Using SST install the ECT sensor. SST 09205-76030
- Connect the ECT sensor connector.
5. Refill with engine coolant.