P25C9
Brake System Control Module B Requested MIL Illumination
P25C9 is an OBD-II diagnostic trouble code meaning: Brake System Control Module B Requested MIL Illumination. Common causes: malfunction of the brake control module, problems with wiring or connectors. Estimated repair cost: $56–222.
Symptoms
- Malfunction indicator lamp (MIL) is on
- There may be problems with the operation of ABS or ESP
- There may be errors in other vehicle systems
- In some cases, a decrease in braking efficiency may be observed.
Causes
- Malfunction of the brake control module
- Problems with wiring or connectors
- ABS sensor malfunction
- Software error in control module
- Module power problems
How to Fix
- Conduct brake system diagnostics
- Check the condition of the wiring and connectors
- Test ABS sensors
- Update control module software
- If necessary, replace the brake control module
Related codes
Error P25C9 by Vehicle Brand
FAQ
What does the P25C9 code mean?
P25C9 is an OBD-II diagnostic trouble code that indicates: Brake System Control Module B Requested MIL Illumination
What causes a P25C9 error code?
The most common causes of P25C9 include: Malfunction of the brake control module; Problems with wiring or connectors; ABS sensor malfunction; Software error in control module.
How do I fix a P25C9 diagnostic trouble code?
To fix P25C9: Conduct brake system diagnostics. Check the condition of the wiring and connectors. Test ABS sensors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P25C9?
Limited driving only, diagnose soon
How much does it cost to fix P25C9?
The estimated repair cost for P25C9 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat