Sensor Checking: Thermistor

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

The thermistor is an NTC device.

Fig 1: Identifying Thermistor

Courtesy of HYUNDAI MOTOR CO.

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.
      Fig 2: Thermistor Specifications Table

      Courtesy of HYUNDAI MOTOR CO.