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

INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE ECT SENSOR
a. Disconnect the sensor connector.
b. Remove the sensor.




3. INSPECT ECT SENSOR RESISTANCE

Using an ohmmeter, measure the resistance between terminals 1 (E2) and 2 (THW).

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. Install the sensor.
c. Connect the sensor connector.

5. FILL RADIATOR WITH ENGINE COOLANT