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: Front Radar Unit. Specifications

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Rear View Monitor (RVM)

    Description and operation Description Back view camera will activate when the backup light is ON with the ignition switch ON and the shift lever in the R position. This system is a supplemental system that shows behind the vehicle through the H/UNIT or the ECM (Reverse Display Room Mirror) mirror while backing-up.

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