P15BB
Brake Booster System Leak Detected
P15BB is an OBD-II diagnostic trouble code meaning: Brake Booster System Leak Detected. Common causes: cracks in vacuum hoses, amplifier connections leaking. Estimated repair cost: $17–89.
Symptoms
- Stiff brake pedal
- Reduced braking performance
- Hissing sound when pressing the brake
- Check Engine Light Is On
- Increased brake pedal travel
Causes
- Cracks in vacuum hoses
- Amplifier connections leaking
- Vacuum pump damage
- Booster check valve malfunction
- Depressurization of the amplifier housing
How to Fix
- Visual inspection of vacuum hoses
- Checking the tightness of connections
- Vacuum pump testing
- Replacing damaged components
- Checking the operation of the check valve
Related codes
FAQ
What does the P15BB code mean?
P15BB is an OBD-II diagnostic trouble code that indicates: Brake Booster System Leak Detected
What causes a P15BB error code?
The most common causes of P15BB include: Cracks in vacuum hoses; Amplifier connections leaking; Vacuum pump damage; Booster check valve malfunction.
How do I fix a P15BB diagnostic trouble code?
To fix P15BB: Visual inspection of vacuum hoses. Checking the tightness of connections. Vacuum pump testing. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P15BB?
Do not drive — repair immediately
How much does it cost to fix P15BB?
The estimated repair cost for P15BB is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat