AAF(Active Air Flap) have High and Low line in the CAN communication which receives each vehicle condition from EMS, FATC, TCU, and ABS/ESP. With this informations, AAF controls Motor properly.
The A.A.F(=Active Air Flap) Actuator sets DTC P0164 when AAF detect that there is no CAN message from FATC
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
FATC CAN signal confirmation | 1. Open or short in CAN communication 2. Faulty FATC. |
Enable conditions |
•
2 seconds later after IG KEY ON | |
Threshold value |
•
No CAN message from FATC | |
Diagnosis time |
•
0.5 seconds. |
