OBD Guide

C055E

Brake Hydraulic Circuit A Leak

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The brake system fault indicator lights up
  • Reduced braking performance
  • Traces of brake fluid appearing under the car

Causes

  • Damage to brake hoses
  • Wear of brake cylinder seals
  • Brake Line Corrosion
  • Leaky connections

How to Fix

  1. Visual inspection of the brake system for leaks
  2. Checking the brake fluid level
  3. Replacing damaged hoses or lines
  4. Bleeding the brake system to remove air

Related codes

Error C055E by Vehicle Brand