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2007 AUDI S6
5.2L V10•AWD•AUTOMATIC•gas•BXA
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor489Torque4245Fluid7DTC1060Battery1Maintenance0Recalls2
U0129critical severityNetwork

Lost Communication with Brake System Control Module

on 2007 Audi S6 5.2L V10 · AWD

What this code means

Cannot communicate with the general brake system control module.

Symptoms

  • Brake warning light on
  • ABS disabled
  • Stability control off
  • Brake system message displayed

Common causes

  • Brake module failure
  • CAN bus wiring damage
  • Module power loss
  • Fuse blown
  • Water damage

Diagnostic steps

  1. Check brake system fuses
  2. Test module power and ground
  3. Check CAN wiring
  4. Inspect module for water damage
  5. Try direct module communication

Repair notes

Check fuses and power supply. Inspect for water damage near brake module location.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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