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

Description
The photo sensor is located at the center of the defrost nozzles.
The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar radiation received by its light receiving portion, generates an electromotive force in proportion to the amount of radiation received which is transferred to the automatic temperature control module so that the solar radiation compensation will be performed.

    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.

    Inspection 1. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 2.

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Fuses And Relays

    Components and components location Component Location 1. Engine room relay box 2. Sub relay box 3. ICU Junction block 4. ICM relay box Relay Box (Engine Compartment).

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

    Description and operation    The System may be limited when • The radar sensor or camera is blocked with a foreign object or debris.

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