Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

1. Disconnect the water thermosensor connector, then remove the water thermosensor from the engine.

Water Thermosensor Inspection:

2. Place the sensor in water with a thermometer and heat the water gradually.
3. Check the resistance of the sensor with an ohmmeter.

COOLANT TEMPERATURE RESISTANCE (KOHMS)

-20°C (-4°F) 14.6-17.8
20°C (68°F) 2.3-2.7
80°C (176°F) 0.2-0.4

4. If not as specified, replace the water thermosensor.
5. Connect the water thermosensor connector.