If there is no message from TCU to ECM/PCM through external CAN line, PCU sets DTC U0101.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
CAN communication with TCM status check | 1. Poor connection |
Enable Conditions |
•
16V > Battery Voltage > 9V | |
Threshold Value |
•
Duration of communication lost with TCM for over 2 sec | |
Diagnostic Time |
•
Continuous | |
MIL On Condition |
•
2 Driving Cycle |
