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

INSPECT ENGINE COOLANT TEMPERATURE SENSOR




Check the resistance.
Using an ohmmeter, measure the resistance between the terminals.

Resistance:
2.32 to 2.59 kOhms at 20 °C (68 °F)
0.310 to 0.326 kOhms at 80 °C (176 °F)

NOTE: If inspecting the water temperature sensor in water, prevent water from flowing into the terminals. After inspection, wipe the water off the sensor.