Hyundai Santa Fe (TM): Air conditioning System / A/C Pressure Transducer. Description and operation

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Heating,Ventilation And Air Conditioning / Air conditioning System / A/C Pressure Transducer. Description and operation

Description
The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the operation of the compressor when the temperature of refrigerant line is very high or very low irregularly to optimize air conditioning system.

    Replacement 1. Using a Lwrench, remove the cap (A) on the bottom of the receiver-drier. 2.

    Inspection    • Before measuring the pressure of the refriferant line, check whether the refrigerant amount is charged in accordance with the specified charging amount.

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

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

    Inspection 1. Check the resistance of the ambient temperature sensor between terminals 1 and 2 whether it changes by changing the ambient temperature. 1. Ambient Sensor (+) 2.

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