PowertrainP0559

Serious

Severity: Serious - have it checked soon

Brake Booster Pressure Sensor Circuit Intermittent

23 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 23

Brand	Code	Description	System
Ashok Leyland CV	P0559	Brake Booster Pressure Sensor Circuit Intermittent SAE	Powertrain
BAIC Motor	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
BYD	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Chery	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Daewoo	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
DFFS	P0559	Brake circuit vacuum sensor failure Brand	Powertrain
DFFX	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
DFXK	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
EOBD	P0559	Bromsboostertryckgivarkrets intermittent Brand	Powertrain
Geely	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
GM	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Great Wall	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Hafei	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Hyundai	P0559	Brake Booster Pressure Sensor Circuit Intermittent SAE	Powertrain
Isuzu	P0559	Brake Booster Pressure Sensor Circuit Intermittent SAE	Powertrain
Land Rover	P0559	Brake booster pressure sensor - circuit intermittent Brand	Powertrain
Peugeot	P0559	Brake Booster Pressure Sensor Circuit Intermittent SAE	Powertrain
Saab	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
MG (SAIC)	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Subaru	P0559	Alternator circuit high Brand	Powertrain
Tata	P0559	Brake Booster Pressure Sensor Circuit Intermittent Brand	Powertrain
Toyota	P0559	Brake circuit vacuum sensor failure Brand	Powertrain
Volkswagen	P0559	SAE: Brake Booster Pressure Sensor Circuit: Intermittent 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 P0559 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P055900	Vacuum sensor signal error (noise) Brand	Powertrain

6Related codes

Browse Pxxx codes or P055xx codes.