AutoCodes – Cadillac – P25A2 Cadillac

P25A2 Cadillac 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 Cadillac 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 3,545

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 Cadillac 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 Cadillac - Brake System Control Module Requested MIL Illumination - AutoCodes.com — P25A2 Cadillac Code - Brake System Control Module Requested MIL Illumination

What does this mean?

What are the Possible Causes of the DTC P25A2 Cadillac?

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

How to Fix the DTC P25A2 Cadillac?

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 Cadillac 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 Cadillac code?

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Need Help with the Code?

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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 Cadillac Code

1. What are the common symptoms of OBDII code P25A2 in a Cadillac related to the Brake System Control Module Requested MIL Illumination?

- The common symptoms include the check engine light (MIL) illuminating, potential issues with the brake system, and possible traction control system malfunctions.

2. What could cause the OBDII code P25A2 to trigger in a Cadillac?

- The code P25A2 is typically triggered by a communication error between the brake system control module and other vehicle systems, such as the engine control module or transmission control module.

3. How serious is the OBDII code P25A2 related to the Brake System Control Module Requested MIL Illumination in a Cadillac?

- The code P25A2 should be addressed promptly as it indicates a potential issue with the brake system control module, which is crucial for vehicle safety and performance.

4. Can driving with the OBDII code P25A2 in a Cadillac be dangerous?

- Driving with the code P25A2 present in a Cadillac can be potentially dangerous, especially if it affects the proper functioning of the brake system or traction control system.

5. What are some possible DIY repair tips for resolving the OBDII code P25A2 in a Cadillac?

- DIY repair tips may include checking and ensuring all electrical connections related to the brake system control module are secure, inspecting for any damaged wiring, and performing a reset using an OBDII scanner.

6. Is it advisable to reset the OBDII code P25A2 in a Cadillac yourself?

- It is advisable to reset the code P25A2 in a Cadillac yourself after addressing any underlying issues causing the code. However, if you are unsure or uncomfortable, it's recommended to seek professional help.

7. How can a mechanic diagnose the OBDII code P25A2 in a Cadillac?

- A mechanic can diagnose the code P25A2 by using an OBDII scanner to retrieve the specific fault codes, conducting a visual inspection of the brake system components, and performing further testing as needed.

8. Are there any recalls related to the OBDII code P25A2 in Cadillac vehicles?

- It's essential to check with the Cadillac dealership or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to the OBDII code P25A2 in specific Cadillac models.

9. What is the typical cost to repair the OBDII code P25A2 in a Cadillac?

- The cost to repair the OBDII code P25A2 in a Cadillac can vary depending on the underlying cause, parts needed for replacement, and labor costs. It's recommended to get estimates from reputable auto repair shops.

10. Can the OBDII code P25A2 in a Cadillac be a recurring issue after repair?

- The code P25A2 may recur if the underlying issue is not fully resolved during the initial repair. It's essential to ensure that all related components are thoroughly inspected and repaired to prevent recurrence.