The PCM/ECM determines CAN communication error and sets DTC U0101 if no message received from TCM.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
No message from TCM | 1. Poor connection or damaged harness 2. Faulty PCM/ECM 3. Faulty TCM |
Enable Conditions |
•
Battery voltage > 10V
•
Engine speed > 32rpm
•
Delay time >0.5 sec. | |
Threshold Value |
•
No message from TCM for 100msec. | |
Diagnostic Time |
•
1.5 sec. | |
MIL On Condition |
•
2 driving cycle |
