Code P15BB Possible Causes
Brake Booster Pressure Sensor harness is open or shorted
Broken Brake Booster Pressure Vaccum Hose
Faulty Brake Booster Pressure Sensor
Brake Booster Pressure Sensor circuit poor electrical connection
Brake Booster Pressure Sensor harness is open or shorted
Broken Brake Booster Pressure Vaccum Hose
Electric Vacuum Pump circuit poor electrical connection