Hyundai Ioniq (AE): Active Air Flap (AAF) / Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Engine Mechanical System / Cooling System / Active Air Flap (AAF) / Description and operation

Description
The AAF (Active Air Flap) is located between radiator grille and radiator, and consists of an actuator and 6 air flaps. The system receives information from EMS, FATC, TCU, MCU and LDC via CAN communication . With this information, the AAF controls the motor properly and then the air flaps adjust air flow from the radiator grille.
During high speed driving, it will reduce the air resistance by closing the air flaps. This improves the fuel efficiency and enhances the driving stability. If the engine is overheated, the system will open the air flaps to drop the temperature.
During the A/C operation, the system will open the air flaps to maintain the refrigerant pressure. The system will close the air flaps to warm up the engine rapidly during cold start.

    Specifications Items Specifications Operating temperature -31 - 185°F (-35 - 85°C) Operating voltage DC 9 - 16V Rated voltage DC 12V Rated current (No load) 300mA or less [LH][RH]

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

    DescriptionThe In-car air temperature sensor is built in the heater & A/C control unit.The sensor contains a thermistor which measures the temperature of the inside. The signal decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit and according to this signal the contr

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

    Self Diagnosis1.Self-diagnosis process.    â€¢ When operating the self-diagnostics, the below fault (self-diagnostics code) will blink at 0.5 seconds interval on the temperature display settings (driver's side only) and the remaining symbols are OFF .

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