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.
AAF Actuator(Module) sets DTC U0100 when AAF detects that there is no signal from ECM(PCM).
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
CAN signal confirmation | 1. Poor connection at each module connector. 2. Opne or short in CAN communication. 3. Faulty ENG ECU. |
Enable conditions |
•
IG " ON " or Engine " ON " | |
Threshold value |
•
No signal regarding EMS 1/2/5 CAN message | |
Diagnosis time |
•
2seconds. |
