Operation CHARM: Car repair manuals for everyone.

Ambient Temperature Sensor

Ambient Temperature Sensor
Self-diagnosis indicator light B comes on: Indicates a problem in the ambient temperature sensor circuit. Use a digital multimeter (KS-AHM-32-003) to check it.

The ambient temperature sensor is a temperature dependent resistor (thermistor). The resistance of the thermistor decreases as the temperature outside the car increases.

Part A:





Part B: