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 sensor connector.




b. Using a 19 mm deep socket wrench, remove the sensor and gasket.




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

Resistance: Refer to the graph

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

4. REINSTALL ECT SENSOR
a. Install a new gasket to the sensor.
b. Using a 19 mm deep socket wrench, install the sensor.

Torque: 20 N.m (200 kg.cm, 15 ft.lb)

c. Connect the sensor connector.

5. REFILL WITH ENGINE COOLANT