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

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION
1. DRAIN ENGINE COOLANT.
2. REMOVE ECT SENSOR.
3. INSPECT ECT SENSOR.
- Using an ohmmeter, measure the resistance between the terminals.

Engine Coolant Temperature (ECT) Sensor Resistance Chart:

- If the resistance is not as specified, replace the ECT sensor.
4. REINSTALL ECT SENSOR.
5. REFILL WITH ENGINE COOLANT.