OBD Guide

C0592

Brake Booster Motor B Phase U-V-W Current High

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–444 (est.)

Symptoms

  • Increased force when pressing the brake pedal
  • Reduced braking performance
  • Possible dashboard warnings

Causes

  • Short circuit in the amplifier motor windings
  • Problems with control electronics (module)
  • Mechanical engine jam
  • Damage to wiring harness or connections

How to Fix

  1. Check voltage and resistance on motor phases
  2. Inspect the condition of the wiring harness and connections
  3. Check the integrity of the motor windings
  4. Diagnose the amplifier control module
  5. If necessary, replace the electric motor or control module

Related codes

Error C0592 by Vehicle Brand