DTC U0100: (TCM) Lost Communication With Electronic Control Module (ECM)/Powertrain Control Module (Pcm) A
U0100 (TCM) - LOST COMMUNICATION WITH ELECTRONIC CONTROL MODULE (ECM)/POWERTRAIN CONTROL MODULE (PCM) A
| Description: The transaxle control module (TCM) continuously monitors controller area network (CAN) for messages from the powertrain control module (PCM). This DTC sets when TCM stops receiving PCM messages for a set 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 . | ||