In-car Temperature Sensor Test

1.Remove the in-car temperature sensor.

2.Check for a change in resistance by heating the sensor with a hair drier or cooling the sensor in a cool cup of water.

3.Compare the resistance reading between the No. 1 and No. 2 terminals of the in-car temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.

 

4.If the resistance is not as specified, replace the in-car temperature sensor.