Fault codes › P0555

P0555

Brake Booster Pressure Sensor Circuit

Generic code Vehicle Speed and Idle Control System High severity Moderate repair
Free on OBD DashX

Want real-world data on P0555?

See which problems come with P0555, how often it shows up in other vehicles, and how to fix it — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
See P0555 on OBD DashX No sign-up needed · available in 10 languages

iWhat P0555 means

  • The fault code P0555 indicates that there is a problem with the brake booster pressure sensor circuit. This may cause issues with the brake system, including poor brake performance.

!Possible symptoms

  • Illuminated ABS warning light
  • Illuminated brake warning light
  • Poor brake performance
  • Reduced stopping power

?Possible causes

  • Failed brake booster pressure sensor
  • Faulty wiring or connections in the circuit
  • Loose or corroded electrical connections

⚙Related parts

  • Brake Booster Pressure Sensor: Brake Booster Pressure Sensor measures the pressure in the brake line that provides extra braking power. Problems lead to inefficient braking and may cause accidents

✓Possible solutions

  • Replace the brake booster pressure sensor
  • Check and repair any damaged wiring or connections
  • Tighten or clean any loose or corroded electrical connections
Free on OBD DashX

P0555 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P0555 No sign-up needed · available in 10 languages

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.