PowertrainP050F

Serious

Severity: Serious - have it checked soon

Brake assist vacuum too low

24 brands affected · Description from Toyota data.

Key terms: 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 24

Brand	Code	Description	System
Ashok Leyland CV	P050F	No description available	Powertrain
BAIC Motor	P050F	Brake vacuum pump leakage Brand	Powertrain
Mercedes-Benz	P050F	No description available	Powertrain
BYD	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Chery	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Daewoo	P050F	No description available	Powertrain
DFFS	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
DFFX	P050F	brake vacuum pump leaking Brand	Powertrain
DFXK	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
EOBD	P050F	Brake assist vacuum too low Brand	Powertrain
Geely	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
GM	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Great Wall	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Hafei	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Holden	P050F	Brake Booster Weak Vacuum Brand	Powertrain
Honda	P050F	No description available	Powertrain
Hyundai	P050F	No description available	Powertrain
Isuzu	P050F	No description available	Powertrain
Land Rover	P050F	Brake assist vacuum too low Brand	Powertrain
Opel	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Peugeot	P050F	No description available	Powertrain
Saab	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
MG (SAIC)	P050F	Brake Assist Vacuum Too Low Brand	Powertrain
Toyota	P050F	Brake assist vacuum too low 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 P050F and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P050F00	OBD relevant DTC in RBS. For detailed information read Fault Memory of RBS Brand	Powertrain
Mercedes-Benz	P050F85	The vacuum in the brake booster is too low. There is a signal above the permissible limit value. Brand	Powertrain

6Related codes

Browse Pxxx codes or P050xx codes.