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

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION



1. DRAIN ENGINE COOLANT.
2. REMOVE ECT SENSOR.
(a) Disconnect the ECT sensor connector.



(b) Using the special service tool (SST) or equivalent, remove the ECT sensor and gasket. (SST 09205-76030)

3. INSPECT ECT SENSOR.
- Using an ohmmeter, measure the resistance between the terminals.




^ If the resistance is not as specified, replace the ECT sensor.

4. REINSTALL ECT SENSOR.
(a) Install a new gasket to the ECT sensor.



(b) Using SST, install the ECT sensor.
(c) Connect the ECT sensor connector.

5. REFILL WITH ENGINE COOLANT.