PowertrainP0555

Serious

Severity: Serious - have it checked soon

Brake Booster Pressure Sensor Circuit

35 brands affected · Generic SAE J2012 description.

Key terms: Boost pressure: extra air pressure made by a turbo or supercharger · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

Safety: This code relates to the braking system or brake assist. Braking may be affected.

1What it means in plain English

This range covers vehicle speed, idle and oil-pressure control, charging-system voltage, and brake-switch circuits.

2Common causes

Carbon build-up in the throttle body
Faulty idle air control valve
Faulty vehicle speed sensor
Faulty charging system or weak battery
Wiring or connector fault

3Can I drive?

Serious · drive with care

Have it checked immediately: brakes or brake assistance may be affected. Do not drive if the pedal feels soft or hard, the car pulls when braking, or the brake warning light is on.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 35

Brand	Code	Description	System
Ashok Leyland CV	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
BAIC Motor	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Mercedes-Benz	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
BYD	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Chery	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Daewoo	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Daihatsu	P0555	Brake pressure sensor system Brand	Powertrain
DFFS	P0555	Brake circuit vacuum sensor failure Brand	Powertrain
DFFX	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
DFXK	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
EOBD	P0555	Bromsservotryckgivarkrets Brand	Powertrain
Ford	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Geely	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
GM	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Great Wall	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Hafei	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Holden	P0555	Brake Booster Pump Motor Circuit Brand	Powertrain
Honda	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Hyundai	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Isuzu	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Land Rover	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Mazda	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Mitsubishi	P0555	Brake vacuum sensor Brand	Powertrain
Nissan	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Opel	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Perodua	P0555	Brake pressure sensor system Brand	Powertrain
Peugeot	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Proton	P0555	Brake vacuum sensor Brand	Powertrain
Saab	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
MG (SAIC)	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Sprinter	P0555	Brake Booster Pressure Sensor Circuit SAE	Powertrain
Suzuki	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Tata	P0555	Brake Booster Pressure Sensor Circuit Brand	Powertrain
Toyota	P0555	Brake circuit vacuum sensor failure Brand	Powertrain
Volkswagen	P0555	Pressure sensor for brake booster: electrical malfunction Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of P0555 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P055500	Brake Booster Pressure Sensor Circuit Brand	Powertrain

6Related codes

Browse Pxxx codes or P055xx codes.