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 |
•
CAN Message Monitoring | 1. Poor Connector Connection 2. Defected C-CAN Communication Circuit |
Enable Conditions |
•
Engine speed higher than 32 RPM (Engine Running)
•
Battery voltage higher than 10V
•
0.5 sec delay time after ignition "ON" | |
Threshold Value |
•
CAN Bus OFF detected | |
Diagnostic Time |
•
1 sec. | |
MIL On Condition |
•
2 Driving Cycle |
