Component Test

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

NOTE: Check for change in resistance by heating or cooling the sensor with a hair drier, etc.

CAUTION: The sensor uses a thermistor which can be damaged if high current is applied during testing. Therefore, use a circuit tester with an output of 1 mA or less at the 20 k ohms range.