Active Brake Pressure Control Module
The brake control module detected a fault in applying brake pressure.
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What it means (plain English)
The computer in charge of the brakes sees that it can't control the brake pressure correctly, which can lead to unsafe stopping.
What the computer is actually seeing
The brake control module monitors the pressure applied to the hydraulic brake system. When it detects a pressure reading that doesn't match the expected parameters, it triggers this code.
What a healthy reading looks like
Normal brake pressure should range from 0 to 3000 psi depending on system design.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check for any additional DTCs (Diagnostic Trouble Codes) related to the brake system.
- 22. Inspect brake fluid level; should be at or above the minimum line in the reservoir.
- 33. Examine all wiring and connectors related to the brake pressure sensor for damage or corrosion.
- 44. Test the brake pressure sensor with a multimeter; should output a voltage between 0.5V (0 psi) to 4.5V (3000 psi).
- 55. If the sensor is faulty, replace it and recheck the DTC.
- 66. If still present, inspect the hydraulic lines for leaks or damage. Repair if necessary.
- 77. If no visible issues, consider testing or replacing the brake control module.
Common causes
- Faulty brake pressure sensor
- Wiring or connector issues in brake pressure circuit
- Hydraulic system leak
- Malfunctioning brake control module
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
No, this code indicates a braking issue that may result in inadequate stopping power.
Will this code come back after clearing it?
Yes, if the underlying issue is not resolved, the code will likely reappear after a brief period.
Why does this issue sometimes pair with a ABS light?
The active brake pressure control module is part of the ABS system; faults in one can trigger alerts in the other.
Working a real vehicle right now?
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