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Home/DTC Codes/Mitsubishi/Eclipse/2000-2012 2.4L I4/U0056
U0056

LIN Bus B Communication Performance

2000-2012 Mitsubishi Eclipse 2.4L I4

Low SeverityNetworkGeneric (SAE)

Description

Communication on LIN bus B is degraded or intermittent.

Symptoms

  • Specific LIN B devices intermittent
  • HVAC blend door actuator issues
  • Seat heater communication errors

Common Causes

  • LIN bus B wiring degradation
  • LIN slave device fault on bus B
  • High resistance in LIN B circuit

Diagnostic Steps

  1. Check LIN bus B voltage levels
  2. Test LIN B wiring resistance
  3. Inspect LIN B device connections
  4. Test individual LIN B slave devices

Repair Notes

Check LIN bus B wiring and slave device connections.

Related Codes

U0037LIN Bus A Communication Performance

Other Network Codes

U0056 on Other Vehicles

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

1997-2004 3.5L V6

Mitsubishi Eclipse

2000-2005 2.4L I4

Mitsubishi Eclipse

2000-2005 3.0L V6

Mitsubishi Eclipse

2006-2012 2.4L I4

Mitsubishi Eclipse

2006-2012 3.8L V6

Common Questions

What does code U0056 mean on a 2000-2012 Mitsubishi Eclipse?

U0056 stands for "LIN Bus B Communication Performance". Communication on LIN bus B is degraded or intermittent.

What are the symptoms of U0056 on a Mitsubishi Eclipse?

Common symptoms of U0056 include: Specific LIN B devices intermittent, HVAC blend door actuator issues, Seat heater communication errors.

What causes U0056 on a 2000-2012 Mitsubishi Eclipse?

Common causes of U0056 include: LIN bus B wiring degradation, LIN slave device fault on bus B, High resistance in LIN B circuit.

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