U0129 (Pcm) - Lost Communications With Brake System Control Module
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.
U0129 (PCM) - LOST COMMUNICATIONS WITH BRAKE SYSTEM CONTROL MODULE
| Description: | The powertrain control module (PCM) continuously monitors the controller area network (CAN) for messages from the anti-lock brake system (ABS). This DTC sets when the PCM does not receive the ABS message within the defined amount of time. When this DTC is set the regenerative braking is disabled until the next driving cycle. | ||
| Possible Causes: |
|
||
| 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 . | ||