Test

Evaporator Temperature Sensor-Test:

Compare the resistance reading between the terminals of the evaporator temperature sensor with specification shown in the graph: It should be within specification.

NOTE: Dip the sensor in ice water, and measure the resistance. Then pour hot water on the sensor, and check for change in resistance.

CAUTION: The sensor uses a thermistor which can be damaged if high current is applied to it during testing. Therefore, use a circuit tester that puts out a measuring current of 1 mA or less