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

Coolant Temperature Sensor Location:

1. With the ignition "OFF", remove the electrical connector at the coolant temperature sensor.
2. With a suitable volt/ohm meter, measure the resistance between the two terminals of the coolant temperature sensor. The correct resistance should be:

^ At 68°F (20°C), approx. 2500 ohms
^ Above 68°F (20°C), less than 2500 ohms.
^ Below 68°F (20°C), greater than 2500 ohms.


If the correct measurement is not obtained replace the coolant temperature sensor.