Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1176 (ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS - (HYBRID))DTC DIAGNOSISU0129 (PCM) - LOST COMMUNICATIONS WITH BRAKE SYSTEM CONTROL MODULE
2007 Ford Fusion SEL, 2.3 Z, Standard
U0129 (Pcm) - Lost Communications With Brake System Control Module
2007 Ford Fusion SEL, 2.3 Z, StandardSECTION 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 . | ||
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.