OBD Guide

C05D6

Power Steering Control Module Processor Performance

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–444 (est.)

Symptoms

  • Weighted steering
  • Flashing ESD indicator on the instrument panel
  • Amplifier intermittent operation
  • Spontaneous rotation of the steering wheel

Causes

  • Internal malfunction of the EUR control unit
  • Firmware corruption
  • Module power problems
  • Short circuit in wiring harness
  • Overheating of electronic components

How to Fix

  1. Diagnostics of module supply voltage and grounding
  2. Checking the integrity of the wiring harness
  3. Scanning the control unit memory for errors
  4. Module firmware update (if available)
  5. Replacement of the EUR control unit if necessary

Related codes

Error C05D6 by Vehicle Brand