OBD Guide

U0095

Vehicle Communication Bus H (+) Low

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

Symptoms

  • Check Engine Light Is On
  • Unstable engine operation
  • Problems with gear shifting (if you have an automatic transmission)
  • Lack of communication with some modules during diagnostics
  • Malfunctions of the car's electronic systems

Causes

  • Broken or damaged CAN bus wires
  • Short circuit in the CAN bus circuit
  • Connector problems or contact corrosion
  • Malfunction of one of the modules connected to the CAN bus
  • Problems with power supply or grounding of modules

How to Fix

  1. Check the integrity of the CAN bus wires
  2. Inspect connectors and contacts for damage or corrosion
  3. Check resistance and voltage on the CAN bus
  4. Disable the modules one by one to identify the faulty one.
  5. If necessary, replace damaged wires or connectors

Related codes

Error U0095 by Vehicle Brand