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Home/DTC Codes/Nissan/Altima/2007-2012 2.5L I4/U0129
U0129

Lost Communication with Brake System Control Module

2007-2012 Nissan Altima 2.5L I4

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

Nissan 200SX

1995-1998 1.6L I4 GA16DE

Nissan 200SX SE-R

1995-1998 2.0L I4 SR20DE

Nissan 240SX

1995-1998 2.4L I4 KA24DE

Nissan 300ZX

1990-1996 3.0L V6 VG30DE

Nissan 300ZX Twin Turbo

1990-1996 3.0L Twin-Turbo V6 VG30DETT

Nissan 350Z

2003-2006 3.5L V6 VQ35DE

Nissan 350Z

2007-2009 3.5L V6 VQ35HR

Nissan 370Z

2009-2020 3.7L V6 VQ37VHR

Common Questions

What does code U0129 mean on a 2007-2012 Nissan Altima?

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 Nissan Altima?

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

What causes U0129 on a 2007-2012 Nissan Altima?

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

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