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]

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: emperature Control Actuator. Repair procedures

    Inspection1.Turn the ignition switch OFF.2.Disconnect the temperature control actuator connector.3.Verify that the temperature control actuator operates to the cool position when connecting 12V to terminal 3 and grounding terminal 7.Verify that the temperature control actuator operates to the warm position when connected in reverse.

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Front Radar Unit. Description and operation

    DescriptionThe smart cruise control unit is installed on the front right side of the chassis. A radar sensor is embedded in the front section of the unit. This sensor detects vehicles and objects in front of the vehicle. The radar sensor can detect up to 64 objects ahead of a vehicle.

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