DTC U0101 Serial Communication Problem With TCU (Timeout): DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition	Possible Cause
DTC Strategy	Missing messages TCU	Open or short in CAN line Contact resistance in connectors
Enable Conditions	Battery voltage > 10V Engine speed > Approx. 260 RPM
Threshold Value	Time exceeded without message = 0.5 sec.
Diagnostic Time	1 sec.
MIL On Condition	2 Driving Cycles