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

ENGINE COOLANT TEMPERATURE SENSOR INSPECTION

1. Drain engine coolant.





2. Remove ECT sensor.
(a) Disconnect the ECT sensor connector.
(b) Using a 19 mm deep socket wrench, remove the ECT sensor and gasket.
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.
(a) Install a new gasket to the ECT sensor.
(b) Using a 19 mm deep socket, install the ECT sensor.

Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

(c) Connect the ECT sensor connector.
5. Refill with engine coolant.