Hyundai Genesis: Cooling System / Active Air Flap(AAF) Description and Operation

Hyundai Genesis (DH) 2013-2016 Service 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	-22~185°F (-30~85°C)
Operating voltage	DC 9~16V
Rated voltage	DC 12V
Rated current (No load)	300mA or less

Thermostat Troubleshooting

Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bo ...

Active Air Flap(AAF) Components and Components Location

Components 1. Active air housing2. Active air flap3. Active air link4. Active air actuator5. Active air duct6. Active air actuator cover ...

Other information:

Hyundai Genesis (DH) 2013-2016 Owners Manual: Recommended cold tire inflation pressures

All tire pressures (including the spare) should be checked when the tires are cold. “Cold tires” means the vehicle has not been driven for at least three hours or driven less than one mile (1.6 km). Warm tires normally exceed recommended cold tire pressures by 4 to 6 psi (28 to 41 ...

Hyundai Genesis (DH) 2013-2016 Owners Manual: Air cleaner

Filter replacement The air cleaner filter can be cleaned for inspection using compressed air. Do not attempt to wash or to rinse it, as water will damage the filter. If soiled, the air cleaner filter must be replaced. We recommend that you visit an authorized HYUNDAI dealer to repl ...