CAN communication consists of High and Low line which has 120Ω registor respectively. Through CAN communication, each module possibly sends their information to others.
A.A.F(=Active Air Flap) Actuator(Module) controls Engine and Motor properly by interchaging their information through CAN.
AAF sets DTC U0001 when AAF can not receive or give any information through AAF Actuator.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
CAN Message signal confirmation | 1. Poor connection of each Module connectors. 2. Open or Short in CAN communication. 3. Faulty CAN communication Module. |
Enable conditions |
•
IG KEY " ON" or Engine " ON " | |
Threshold value |
•
No receiving CAN messge. | |
Diagnosis time |
•
0.5 sec. |
