U0101 is set when ECM send data requiring signal to TCM, but no return signal is transmitted to ECM within 0.5 sec. This code is due to TCM CAN line related problem or TCM module failure.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Signal monitoring |
•
CAN BUS
•
CAN communication module component | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold Value |
•
CAN communication error between ECM and TCM | |||
Diagnostic Time |
•
490ms | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | NO | |||
