If CAN1 Bus off is detected, ECM sets DTC U007400. This fault might be caused by short in CAN1 communication circuit.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
CAN message monitoring | 1. Poor connector connection 2. Short in CAN1 high line 3. Short in CAN1 low line 4. Short circuit between CAN high and low line 5. Faulty modules that connected to CAN1 | |
Enable Condition |
•
Engine running | ||
Threshold Value |
•
C-CAN Bus off is detected | ||
Detecting Time |
•
1.5 sec. | ||
Fail Safe | MIL |
•
Off | |
