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DTC U0101: Lost Communication with TCM [12/2012 - ]: Description

The engine control unit and the transaxle control unit are located inside the ECM. The engine control unit intercommunicates with the transaxle control unit with the Controller Area Network (CAN).

If there is a problem in this communication, the ECM stores a DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
U0101 Lost Communication with TCM Following conditions are met for 1.25 seconds (1 trip detection logic):
  1. Ignition switch ON
  2. Battery voltage is 10.5 V or higher
  3. No communication between engine control unit and transaxle control unit
ECM Comes on DTC stored DTC for Mexico Models
- Applies