The PCM 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. Faulty PCM | 
| 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 Drive Cycles |