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Evaporator Temperature Sensor / Switch: Testing and Inspection

THERMISTOR

The thermistor will detect the core temperature and interrupt compressor relay power, in order to prevent evaporator freezing by excessive cooling.

1. Thermistor check
1. Remove the glove box.
2. Start the engine.
3. Turn on the air conditioner.

4. Using the multi-tester, check the output voltage between terminals 2 and 3 in the thermistor.