If TCU CAN message is not received via CAN communication line, ECM sets DTC U0402.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
CAN communication monitoring | 1. Poor connector connection 2. Faulty TCM/PCM |
Enable Condition |
•
Battery voltage is higher than 10.8V
•
Ignition switch "ON" for over 0.5 sec | |
Threshold Value |
•
No TCU CAN message via CAN communication line | |
Diagnostic Time |
•
Continuous | |
MIL ON Condition |
•
- |
