DTC U0100: Lost Communication With Electronic Control Module (ECM)/Powertrain Control Module (Pcm)
DTC U0100: LOST COMMUNICATION WITH ELECTRONIC CONTROL MODULE (ECM)/POWERTRAIN CONTROL MODULE (PCM)
| Description: | This DTC is set when the PCM can not communicate with the transmission control module (TCM). | ||
| 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 AE . | ||