OBD Guide

U0054

Vehicle Communication Bus C (-) shorted to Bus C (+)

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Unstable operation of the dashboard
  • Lost connection with some modules
  • Malfunctions of electronic systems
  • Check Engine Light Is On
  • Problems starting the engine

Causes

  • Broken CAN-C bus wires
  • Short circuit in wiring
  • Corrosion of connector contacts
  • Malfunction of one of the CAN-C network modules
  • Wiring harness damage

How to Fix

  1. Check the integrity of the CAN-C bus wiring
  2. Inspect connectors for corrosion
  3. Check the connection of all network modules
  4. Test the operation of related modules
  5. If necessary, replace damaged wires or connectors

Related codes

Error U0054 by Vehicle Brand