The PCM determines CAN communication error and sets DTC U0001 if communication with other control devices (e.g. ABS) via CAN is impossible or PCM detects that communication time via CAN exceeds threshold value.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check CAN message transfer status | 1. Open or short in CAN line 2. Poor connection or damaged harness 3. Faulty PCM |
Enable Conditions |
•
Battery voltage > 10V
•
Delay time >0.5 sec. | |
Threshold Value |
•
20 wrong messages received by PCM | |
Diagnostic Time |
•
1 sec. | |
MIL On Condition |
•
2 Drive Cycles |
