If it is impossible to communicate through the internal or external CAN line over 2 sec, the ECM/PCM sets DTC U0001.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
CAN Message transfer incorrect | 1. Poor connection 2. Open/Short |
Enable Conditions |
•
Engine speed ; "Engine Running" > 32rpm
•
Battery voltage > 10V
•
Delay time after ignition on > 0.5sec | |
Threshold Value |
•
20 wrong messages received by ECU | |
Diagnostic Time |
•
1sec | |
MIL On Condition |
•
2 driving Cycles |
