Hyundai Elantra (CN7): Air Conditioning System / Description and operation

Refrigeration Cycle

    Instructions (R-134a)When Handling Refrigerant1.R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite.

    Component Location Index1. Expansion valve2. Suction & Liquid pipe assembly3. Service port (High pressure)4. Service port (Low pressure)5. A/C Pressure transducer (APT)6.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: A/C Pressure Transducer

    Description and operation DescriptionThe 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.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Blower Resistor (Manual)

    Repair procedures Inspection1.Measure the resistance between the terminals.2.The measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor)Replacement1.Disconnect the negative (-) battery terminal.

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