U0401 - Invalid Data Received From Engine/Powertrain Control
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.
U0401 - INVALID DATA RECEIVED FROM ENGINE/POWERTRAIN CONTROL MODULE (PCM)
| Description: | The traction battery control module (TBCM) continuously monitors the controller area network (CAN) for messages from the powertrain control module (PCM). This DTC is set when the message received from the PCM is out of expected range or contains invalid data. | ||
| 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 . | ||