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

1. DRAIN ENGINE COOLANT
2. REMOVE ECT SENSOR

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
5. REFILL WITH ENGINE COOLANT