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: 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 t

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Parking Distance Warning (PDW)

    Description and operation Description • PDW consists of 8 sensors (front : 4 units, rear : 4 units) that are used to detect obstacles and transmit the result in three separate warning levels, the first, second and third to IBU via LIN communication.

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