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Home/DTC Codes/Lincoln/MKX/2011-2015 3.7L V6/U0129
U0129

Lost Communication with Brake System Control Module

2011-2015 Lincoln MKX 3.7L V6

Critical SeverityNetworkGeneric (SAE)

Description

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.

Related Codes

U0121Lost Communication with ABS ModuleU0128Lost Communication with Brake Boost Control Module

Other Network Codes

U0129 on Other Vehicles

Lincoln Aviator

2003-2005 4.6L V8

Lincoln Aviator

2003-2005 4.6L V8 DOHC

Lincoln Aviator

2020-2024 3.0L Twin-Turbo V6

Lincoln Aviator

2020-2024 3.0L V6 Twin Turbo

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin Turbo V6 PHEV

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin-Turbo V6 Hybrid

Lincoln Aviator Grand Touring

2020-2024 3.0L V6 Twin Turbo Hybrid

Lincoln Blackwood

2002-2002 5.4L V8

Common Questions

What does code U0129 mean on a 2011-2015 Lincoln MKX?

U0129 stands for "Lost Communication with Brake System Control Module". Cannot communicate with the general brake system control module.

What are the symptoms of U0129 on a Lincoln MKX?

Common symptoms of U0129 include: Brake warning light on, ABS disabled, Stability control off, Brake system message displayed.

What causes U0129 on a 2011-2015 Lincoln MKX?

Common causes of U0129 include: Brake module failure, CAN bus wiring damage, Module power loss, Fuse blown, Water damage.

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