If there is no message from TCU to ECM/PCM through external CAN line, ECM/PCM sets DTC U0101.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
CAN communication status check | 1. Poor connection |
Enable Conditions |
•
IG ON | |
Threshold Value |
•
No message time from TCU via external CAN | |
Diagnostic Time |
•
Continuous | |
MIL On Condition |
•
2 driving cycles |
