OBD Guide

P25A2

Brake System Control Module A Requested MIL Illumination

P25A2 is an OBD-II diagnostic trouble code meaning: Brake System Control Module A Requested MIL Illumination. Common causes: malfunction of the brake control module, problems with wiring or connectors. Estimated repair cost: $56โ€“278.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$56โ€“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

FAQ

What does the P25A2 code mean?

P25A2 is an OBD-II diagnostic trouble code that indicates: Brake System Control Module A Requested MIL Illumination

What causes a P25A2 error code?

The most common causes of P25A2 include: Malfunction of the brake control module; Problems with wiring or connectors; Malfunction of brake system sensors; Module power problems.

How do I fix a P25A2 diagnostic trouble code?

To fix P25A2: Conduct brake system diagnostics. Check the condition of the wiring and connectors. Test brake system sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25A2?

Do not drive โ€” repair immediately

How much does it cost to fix P25A2?

The estimated repair cost for P25A2 is $56โ€“278. Actual cost depends on your vehicle, location, and labor rates.

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