PowertrainP1555

Serious

Severity: Serious - have it checked soon

Brake vacuum booster pump relay circuit short leading to high voltage

27 brands affected · Description from Toyota data.

Key terms: Boost pressure: extra air pressure made by a turbo or supercharger · Control module: a small computer that runs one part of the car · 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

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
Control module 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 27

Brand	Code	Description	System
Ashok Leyland CV	P1555	No description available	Powertrain
BAIC Motor	P1555	Brake vacuum booster pump relay circuit short to high voltage Brand	Powertrain
Chery	P1555	Charge Pressure: Maximum Limit Exceeded Brand	Powertrain
Daewoo	P1555	Charge Pressure Characteristics Brand	Powertrain
DFFS	P1555	BECB low SOC fault Brand	Powertrain
DFFX	P1555	brake vacuum booster pump relay short circuit to high voltage Brand	Powertrain
DFXK	P1555	Charge Pressure: Maximum Limit Exceeded Brand	Powertrain
EOBD	P1555	Suis brek Brand	Powertrain
Geely	P1555	Charge Pressure: Maximum Limit Exceeded Brand	Powertrain
GM	P1555	Charge Pressure Characteristics Brand	Powertrain
Great Wall	P1555	Brake vacuum booster pump relay circuit short leading to high voltage Brand	Powertrain
Holden	P1555	Brake Booster Pump Motor Brand	Powertrain
Honda	P1555	No description available	Powertrain
Hyundai	P1555	No description available	Powertrain
Isuzu	P1555	No description available	Powertrain
Land Rover	P1555	Injector circuit range/performance - cylinder 5 Brand	Powertrain
Mitsubishi	P1555	No description available	Powertrain
Opel	P1555	Charge Pressure Characteristics Brand	Powertrain
Peugeot	P1555	No description available	Powertrain
Porsche	P1555	No description available	Powertrain
Proton	P1555	No description available	Powertrain
Saab	P1555	Charge Pressure Characteristics Brand	Powertrain
Suzuki	P1555	ALT CHRG CONT/SYS Brand	Powertrain
SWM Motor	P1555	brake vacuum booster pump relay short circuit to high voltage Brand	Powertrain
Tata	P1555	No description available	Powertrain
Toyota	P1555	Brake vacuum booster pump relay circuit short leading to high voltage Brand	Powertrain
Volkswagen	P1555	Boost Pressure Control: Upper Limit Exceeded 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 2

These 7-character codes are manufacturer-specific variants of P1555 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P155500	Fehler im über CAN zusendenden Ebene 1 Moment Brand	Powertrain
Sprinter	P155500	Fehler im über CAN zusendenden Ebene 1 Moment Brand	Powertrain

6Related codes

Browse Pxxx codes or P155xx codes.