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Home/DTC Codes/Mitsubishi/Eclipse/2000-2012 2.4L I4/U0029
U0029

Vehicle Communication Bus B Performance

2000-2012 Mitsubishi Eclipse 2.4L I4 🇩🇪

Moderate SeverityNetwork

Description

CAN bus B performance is degraded with intermittent communication issues.

Symptoms

  • Secondary systems intermittent
  • Body control functions erratic
  • Climate control glitches

Common Causes

  • Wiring degradation on bus B
  • Module fault on bus B
  • Poor splice connections
  • Aftermarket device loading bus

Diagnostic Steps

  1. Scope bus B signals
  2. Check bus B termination
  3. Inspect bus B wiring
  4. Isolate modules on bus B

Repair Notes

Diagnose bus B wiring and termination. Check for aftermarket device interference.

Related Codes

U0010Medium Speed CAN Communication BusU0028Vehicle Communication Bus A Performance

Other Network Codes

U0029 on Other Vehicles

Mitsubishi 3000GT

1991-1999 3.0L V6

Mitsubishi 3000GT VR-4

1991-1999 3.0L Twin Turbo V6

Mitsubishi 3000GT VR-4

1991-1999 3.0L V6 Twin Turbo

Mitsubishi Colt JP

2002-2012 1.3L I4 4A90

Mitsubishi Colt JP

2002-2012 1.5L I4 4A91

Mitsubishi Delica D:5

2019-2025 2.2L I4 Turbo Diesel 4N14

Mitsubishi Diamante

1992-1996 3.0L V6

Mitsubishi Diamante

1997-2004 3.5L V6

Common Questions

What does code U0029 mean on a 2000-2012 Mitsubishi Eclipse?

U0029 stands for "Vehicle Communication Bus B Performance". CAN bus B performance is degraded with intermittent communication issues.

What are the symptoms of U0029 on a Mitsubishi Eclipse?

Common symptoms of U0029 include: Secondary systems intermittent, Body control functions erratic, Climate control glitches.

What causes U0029 on a 2000-2012 Mitsubishi Eclipse?

Common causes of U0029 include: Wiring degradation on bus B, Module fault on bus B, Poor splice connections, Aftermarket device loading bus.

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