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U0129 Code – Lost Communication with Brake System Control Module

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What are the Possible Causes of the Code U0129?
  • Faulty Controller Area Network (CAN) Communication System
    • Faulty Brake System Control Module
  • Brake System Control Module harness is open or shorted
  • Brake System Control Module circuit poor electrical connection

    • Need help with this OBD II code? Our mechanics are available within west Michigan to help. Outside of our service area? Visit our Car Help Section where you can ask questions and get answers.

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