U0101 (Pcm) - Lost Communication With Transaxle Control Module (TCM)
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
U0101 (PCM) - LOST COMMUNICATION WITH TRANSAXLE CONTROL MODULE (TCM)
| Description: | The powertrain control module (PCM) continuously monitors controller area network (CAN) for messages from the TCM. This DTC sets when the PCM does not receive the TCM message within the defined amount of time. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check for other PCM DTCs or PCM related symptoms. Diagnose all other PCM DTCs or PCM related symptoms first. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST QA . | ||