Hyundai Ioniq (AE): Air Conditioning System / A/C Pressure Transducer. Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & 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.

    Replacement1.Remove the condenser.2.Remove the cap (A) on the bottom of the condenser with a L wrench. Tightening torque : 9.81 - 14.71 N.

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

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Evaporator Temperature Sensor. Description and operation

    DescriptionThe evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC).

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Troubleshooting

    Trouble Symptom ChartsTrouble Symptom 1Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed se

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