OBD Guide

C0131

Antilock Brake System/Traction Control System Pressure Circuit

C0131 is an OBD-II diagnostic trouble code meaning: Antilock Brake System/Traction Control System Pressure Circuit. Common causes: abs hydraulic modulator malfunction, wiring harness damage. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • ABS/TCS indicator is on
  • Reduced braking performance
  • Disabling the ABS/TCS system
  • Unstable operation of the traction control system

Causes

  • ABS hydraulic modulator malfunction
  • Wiring harness damage
  • Low brake fluid level
  • Pressure sensor malfunction
  • Corrosion or oxidation of contacts

How to Fix

  1. Check the brake fluid level
  2. Inspect the wiring harness for damage
  3. Check contacts and connectors
  4. Scan the ABS system for additional errors
  5. Replace faulty components (if necessary)

Related codes

Error C0131 by Vehicle Brand

FAQ

What does the C0131 code mean?

C0131 is an OBD-II diagnostic trouble code that indicates: Antilock Brake System/Traction Control System Pressure Circuit

What causes a C0131 error code?

The most common causes of C0131 include: ABS hydraulic modulator malfunction; Wiring harness damage; Low brake fluid level; Pressure sensor malfunction.

How do I fix a C0131 diagnostic trouble code?

To fix C0131: Check the brake fluid level. Inspect the wiring harness for damage. Check contacts and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0131?

Limited driving only, diagnose soon

How much does it cost to fix C0131?

The estimated repair cost for C0131 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat