What is the P0555 fault code What is Brake Boost Pressure Sensor Circuit Malfunction How do you fix the P0555 fault code What are the symptoms and causes for the P0555 fault code
What is the P0555 Fault code? What does it all mean?
One of the possible fault codes for the brake booster pressure sensor circuit is P0555. This code is an indication that the powertrain controller module (PCM), has detected a malfunction that prevents the brake booster pressure sensors circuit from operating. Other fault codes for the brake booster pressure sensor include P0556 (P0557), P0558 (P0558), and P0559 (P0559).
The brake booster pressure sensor circuit measures the pressure applied to hydraulic brake booster. The PCM controls the circuit to adjust to different braking conditions, adjust pressure and assist with brake pedal operation. This action can be used to slow down or stop the vehicle if the driver applies the least amount of force to it.
Code P0555 will be set if the PCM detects an incorrect voltage signal from the brake booster pressure sens circuit, or if it receives an incoherent voltage signal from the circuit.
The P0555 fault code can affect vehicles of all makes and models, including but not limited to Fiat, Volkswagen or Ford, Infiniti BMW, Infiniti BMW, Alfa Romeo Toyota, Nissan, Dodge and Chrysler.
What is the P0555 Fault Code and Why Does It Happen?
The following are the most frequent causes of the P0555 fault code:
- – Pressure sensor for defective brake booster
- Vacuum lines and hoses that are worn or damaged
- – Connectors that are loose, damaged, or corroded
- – Short-circuited, damaged or faulty cables
- Defective brake booster
- – Defective PCM
What are the symptoms of P0555 Trouble code?
These symptoms may be present in vehicles with code P0555
- – When you press the brake pedal, check engine light flashes or comes on continuously
- The brake warning lamp can flash or stay on if the brake pedal is pressed.
- To stop the vehicle from accelerating or stopping, it may be necessary to push the brake pedal harder
- – Hardening your brake pedal
How to Fix the P0555 Fault Code
You can make the following repairs to fix the P0555 fault code:
- Repairing the brake booster pressure sensor that is defective
- – Cleaning corrosion and replacing damaged connectors
- – Repair of short-circuited, damaged wiring
- Repair of vacuum lines and hoses that are leaking
- Repairing a damaged brake booster
- – Check the PCM for damage and replace it if necessary
How serious is the P0555 Fault code?
The severity of the code is dependent on the cause and can get worse if it is not fixed promptly. The vehicle’s safety may be endangered if the fault is not addressed immediately.
