AutoCodes – GMC – P25A2 2014 GMC Sierra

P25A2 2014 GMC Sierra Code - Brake System Control Module Requested MIL Illumination

Quick Answer

Control modules constantly monitor the vehicle for any condition which may adversely affect vehicle performance. Common causes include Check Brake System Control Module for codes, Faulty Brake System Control Module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P25A2 2014 GMC Sierra indicates Brake System Control Module Requested MIL Illumination.
Common causes: Common causes include Check Brake System Control Module for codes, Faulty Brake System Control Module.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 450

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 15, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P25A2 2014 GMC Sierra Description

Control modules constantly monitor the vehicle for any condition which may adversely affect vehicle performance. If a condition is detected, the module sets a Diagnostic Trouble Code (DTC) and sends a serial data message to the Engine Control Module (ECM). The ECM sets a DTC to inform that the module has set a DTC. The serial data message sent by the module also contains a request for the ECM to illuminate the Malfunction Indicator Lamp (MIL).
The DTC will be set when the ECM receives a serial data message from the Brake System Control Module indicating that DTC has been set in the module.

OBDII Code P25A2 2014 GMC Sierra - Brake System Control Module Requested MIL Illumination - AutoCodes.com — P25A2 2014 GMC Sierra Code - Brake System Control Module Requested MIL Illumination

What does this mean?

What are the Possible Causes of the DTC P25A2 2014 GMC Sierra?

Check Brake System Control Module for codes
Faulty Brake System Control Module

How to Fix the DTC P25A2 2014 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P25A2 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P25A2 2014 GMC Sierra code?

Need more information on how to fix the P25A2 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P25A2 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P25A2 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P25A2 in a 2014 GMC Sierra?

The common symptoms include the illumination of the malfunction indicator lamp (MIL) on the dashboard, issues with the brake system, and potential loss of power.

2. What does the OBDII code P25A2 in a 2014 GMC Sierra indicate?

The code P25A2 specifically indicates a Brake System Control Module Requested MIL Illumination, signaling a potential issue with the brake system control module.

3. What are the possible causes of OBDII code P25A2 in a 2014 GMC Sierra?

Potential causes include a faulty brake system control module, wiring or connection issues related to the module, or software malfunctions within the module.

4. How can I diagnose the OBDII code P25A2 in my 2014 GMC Sierra?

Diagnosis involves using an OBDII scanner to retrieve the specific code, inspecting the brake system control module and related components, and checking for any visible signs of damage or corrosion.

5. Can I continue driving my 2014 GMC Sierra with OBDII code P25A2 illuminated?

It is not recommended to continue driving the vehicle with the MIL illuminated, as it indicates a potential issue with the brake system that may compromise safety. Have the vehicle inspected and repaired promptly.

6. How can I reset the OBDII code P25A2 in my 2014 GMC Sierra?

Resetting the code involves using an OBDII scanner to clear the code after addressing the underlying issue with the brake system control module or related components.

7. Is it safe to ignore the OBDII code P25A2 in my 2014 GMC Sierra?

Ignoring the code can lead to further damage to the brake system and potentially compromise the safety and performance of the vehicle. It is best to address the issue promptly.

8. What are some repair tips for fixing OBDII code P25A2 in a 2014 GMC Sierra?

Repair tips include checking and repairing any wiring or connection issues, replacing the faulty brake system control module if necessary, and ensuring proper software updates are performed.

9. Can a DIY enthusiast fix OBDII code P25A2 in a 2014 GMC Sierra?

While some basic inspection and troubleshooting can be done by a DIY enthusiast, dealing with brake system components and control modules may require specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

10. How much does it cost to repair OBDII code P25A2 in a 2014 GMC Sierra?

The cost of repair can vary depending on the specific underlying issue, parts needed for replacement, and labor costs. It is advisable to obtain quotes from automotive repair shops for an accurate estimation.