Kia Niro: Cooling System / Active Air Flap (AAF) Description and operation
| Description |
The system receives information from ECU, FATC, TCU, MCU and LDC via CAN communication . With this information, the active air flap (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 the fuel efficiency and enhance the driving stability. If overheat 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 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) |
70 mA or less |
Water Temperature Control Assembly Repair procedures
Removal and Installation
Water Temperature Assembly
•
Be sure to read and follow the “Gen ...
Active Air Flap (AAF) Schematic diagrams
Schematic Diagram
...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Components and components location
Components
1. Stabilizer bar
2. Rear sub frame
3. Rear upper arm
4. Rear shock absorber
5. Rear axle
6. Assist arm
7. Trailing arm
8. Coil spring
...
Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
Teaching Procedures
1.
Key Teaching Procedure
Key teaching must be done after replacing a defective PCM(ECM) or when
providing additional keys to the vehicle owner.
The procedure starts with an PCM(ECM) request for vehicle specific data
(PIN code: 6dig ...
