Hyundai Santa Fe (TM): Air conditioning System / In-car Sensor. Description and operation

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Heating,Ventilation And Air Conditioning / Air conditioning System / In-car Sensor. Description and operation

Description
The In-car air temperature sensor is built in the heater & A/C control unit.
The sensor consists of a thermistor that measures the inside temperature. The signal decided by the resistance value that changes in accordance with perceived inside temperature, is delivered to heater control unit, and according to this signal, the control unit regulates in-car temperature to intended value.

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the evaporator temperature sensor connector.

    Description The photo sensor is located at the center of the defrost nozzles. The photo sensor contains a photovoltaic (sensitive to sunlight) diode.

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Troubleshooting

    Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Compressor. Repair procedures

    Removal 1. If a compressor is available, the air conditioner is operated for a few minutes in the engine idle state and then the engine is stopped. 2. Disconnect the negative (-) battery terminal.

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