OBD Guide

P25A2

Brake System Control Module A Requested MIL Illumination

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Malfunction indicator lamp (MIL) is on
  • There may be problems with the operation of ABS or ESP
  • Possible unusual sounds when braking
  • Reduced braking performance
  • The stabilization system may turn off

Causes

  • Malfunction of the brake control module
  • Problems with wiring or connectors
  • Malfunction of brake system sensors
  • Module power problems
  • Software error in the module

How to Fix

  1. Conduct brake system diagnostics
  2. Check the condition of the wiring and connectors
  3. Test brake system sensors
  4. Check the power supply to the control module
  5. If necessary, replace the brake control module

Related codes

Error P25A2 by Vehicle Brand