A.A.F(=Active Air Flap) system is equipped with a flip can be opened between radiator grille and radiator.
During High speed driving, it will enhance the driving stability by closing the flap to reduce the air resistance.
Inside the engine room, the temperature rise is to be a concern if the components overheat the engine room.
it opened the flap function to lower the internal temperature.
The A.A.F(=Active Air Flap) actuator(The Control Module) sets DTC P1235 and turns the warning lamp ON if the driving voltage of AAF can not reach to more than 0.1V for the designated time or linkage can not open / close AAF flap.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
A.A.F operating voltage detection | 1. Stuck the A.A.F 2. Damaged or not installed the linkage |
Enable conditions |
•
IG " ON " | |
Threshold value |
•
the voltage is detected below 0.1V, after IGN ON, when motor is driven to the direction of high feed back voltage for maxium 5 secs.
•
Failed when opening flap
•
Failed when closing flap | |
Diagnosis time |
•
Within 5 secs after IGN ON
•
For 5 secs (Failed to open flap)
•
For 5 secs (Failed to close flap) | |
DTC clear time |
•
After the system recovers the normal status and then keeps 40 WUC(Warm Up Cycle) times, it is possible to delete the DTC. |
