PowertrainP1429

Serious

Severity: Serious - have it checked soon

Circuit for Brake Vacuum Pump: Open Circuit

23 brands affected · Description from Volkswagen data.

Key terms: 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 23

Brand	Code	Description	System
Ashok Leyland CV	P1429	No description available	Powertrain
BAIC Motor	P1429	Brake vacuum booster pump control circuit voltage open Brand	Powertrain
BYD	P1429	NO. 298 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1429	Brake booster vacuum pump control circuit open Brand	Powertrain
Daewoo	P1429	Electric Air Pump Primary Failure Brand	Powertrain
DFFS	P1429	Brake vacuum pump relay control circuit open Brand	Powertrain
DFXK	P1429	Circuit for Brake Vacuum Pump: Open Circuit Brand	Powertrain
EOBD	P1429	Teocht NTC íseal Brand	Powertrain
Geely	P1429	Circuit for Brake Vacuum Pump: Open Circuit Brand	Powertrain
GM	P1429	Electric Air Pump Primary Failure Brand	Powertrain
Great Wall	P1429	Cylinder 4 exhaust gas lowest temperature signal too strong Brand	Powertrain
Holden	P1429	EGR Temperature Sensor 2 - Intake Air Temperature 1 Not Plausible Brand	Powertrain
Honda	P1429	No description available	Powertrain
Land Rover	P1429	Electric air pump primary Brand	Powertrain
Maserati	P1429	No description available	Powertrain
Mitsubishi	P1429	NTC temperature sensor low Brand	Powertrain
Opel	P1429	Electric Air Pump Primary Failure Brand	Powertrain
Peugeot	P1429	No description available	Powertrain
Porsche	P1429	Endstufe Bremskraftverstürker: Signalfehler Brand	Powertrain
Proton	P1429	NTC temperature sensor low Brand	Powertrain
Saab	P1429	Electric Air Pump Primary Failure Brand	Powertrain
MG (SAIC)	P1429	Brake Booster Pump Circuit Open Brand	Powertrain
Volkswagen	P1429	Circuit for Brake Vacuum Pump: Open Circuit 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 P1429 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P142900	There is a battery-internal isolation warning in the high-voltage battery module. Brand	Powertrain
Peugeot	P142960	No description available	Powertrain

6Related codes

Browse Pxxx codes or P142xx codes.