P25A2 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 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.
Code P25A2 Description
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.
What are the Possible Causes of the DTC P25A2?
- Check Brake System Control Module for codes
- Faulty Brake System Control Module
How to Fix the DTC P25A2?
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 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.
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Information for Specific Makes
- P25A2 Buick — Brake System Control Module Requested MIL Illumination
- P25A2 Cadillac — Brake System Control Module Requested MIL Illumination
- P25A2 Chevrolet — Brake System Control Module Requested MIL Illumination
- P25A2 GMC — Brake System Control Module Requested MIL Illumination
Frequently Asked Questions about P25A2 Code
What does the OBD-II code P25A2 mean?
P25A2 indicates that the Brake System Control Module has requested the Malfunction Indicator Light (MIL) to illuminate due to a detected issue.
What are common symptoms of code P25A2?
Symptoms may include the MIL or Check Engine Light being illuminated, potential ABS or brake warning lights, and reduced braking system performance.
What causes code P25A2 to appear?
Common causes include a malfunctioning Brake System Control Module, wiring or connector issues, communication faults between modules, or low brake fluid levels.
Can code P25A2 affect vehicle performance?
Yes, it can impact braking system operation, which may reduce safety and vehicle control under certain conditions.
How is code P25A2 diagnosed?
A technician will use a scan tool to read stored codes, inspect the Brake System Control Module, check wiring and connections, and verify proper communication between modules.
Can I drive with code P25A2 present?
Driving may still be possible, but it is not recommended due to potential safety concerns with the braking system. Get the issue inspected promptly.
How do I fix code P25A2?
Repairs may include replacing or reprogramming the Brake System Control Module, repairing damaged wiring, or addressing any communication issues between modules.
Does code P25A2 always require module replacement?
Not always. Sometimes the issue can be resolved by repairing wiring or connectors or updating the module’s software.
Will clearing the code fix the issue permanently?
No, clearing the code will temporarily remove the MIL, but the underlying issue must be addressed to prevent the code from returning.
How much does it cost to repair code P25A2?
Repair costs can vary widely based on the cause, ranging from $100 for minor wiring repairs to over $1,000 if module replacement is needed.
Discuss the causes and fixes for P25A2 OBDII Code
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