PowertrainP1431

Serious

Severity: Serious - have it checked soon

Brake booster system

21 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 21

Brand	Code	Description	System
Ashok Leyland CV	P1431	No description available	Powertrain
BYD	P1431	NO. 306 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1431	Circuit for Brake Vacuum Pump: Open or Short to Ground Brand	Powertrain
Daewoo	P1431	Fuel Level Sensor 2 Circuit Performance Brand	Powertrain
DFXK	P1431	Circuit for Brake Vacuum Pump: Open or Short to Ground Brand	Powertrain
EOBD	P1431	Ağ verisi Brand	Powertrain
Geely	P1431	Circuit for Brake Vacuum Pump: Open or Short to Ground Brand	Powertrain
GM	P1431	Fuel level sensor 2 performance Brand	Powertrain
Great Wall	P1431	Cold start status exhaust temperature T1 implausible Brand	Powertrain
Holden	P1431	Fuel Pressure Sensor Performance Brand	Powertrain
Honda	P1431	No description available	Powertrain
Isuzu	P1431	No description available	Powertrain
Land Rover	P1431	Misfire monitor disabled_ unable to learn wheel profile Brand	Powertrain
Maserati	P1431	No description available	Powertrain
Opel	P1431	Fuel level sensor 2 performance Brand	Powertrain
Peugeot	P1431	No description available	Powertrain
Porsche	P1431	Bremskraftverstürker: Fehlfunktion Unterdrucksystem Brand	Powertrain
Proton	P1431	No description available	Powertrain
Saab	P1431	Fuel level sensor 2 performance Brand	Powertrain
Suzuki	P1431	Clogged DPF Failures Brand	Powertrain
Toyota	P1431	Brake booster system 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 P1431 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P143100	Sensor module F of the high-voltage battery module has an electrical fault. Brand	Powertrain

6Related codes

Browse Pxxx codes or P143xx codes.