LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2013 >> C-Max Energi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Hybrid) >> DTC Diagnosis >> DTC U0129: Lost Communication With Brake System Control Module
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0129: Lost Communication With Brake System Control Module

DTC U0129: LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE

Description:  The PCM continuously monitors the controller area network (CAN) for messages from the anti-lock brake system (ABS) module. This DTC sets when the PCM does not receive the ABS message within the defined amount of time.
Possible Causes: 
  • Communication error
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 .