I need the code number to see what's going on, but I will tell you that the systems are related through the CAN (controller area network) which will affect the transmission operation. Here is some information on the problem.
The AAF (Active Air Flap) is located between the 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 then the air flaps adjust air flow from radiator grille.
During high-speed driving, it will reduce the air resistance by closing the air flaps. This improves fuel efficiency and enhances driving stability. If overheating occurs, 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 a cold start.
So, the car will not operate correctly with this problem. I know it sounds silly but that's the way computerized cars work, I have included how to change the AAF actuator out in case you want to do the repair yourself to save some money. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to make bigger)
Saturday, December 17th, 2022 AT 11:56 AM