PowertrainP1157

Caution

Severity: Caution - get it checked when you can

Short circuit to positive

22 brands affected · Description from BMW data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

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?

Caution · drive with care

Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.

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 22

Brand	Code	Description	System
BMW	P1157	Short circuit to positive Brand	Powertrain
BYD	P1157	NO. 344 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1157	Manifold Pressure Sensor (G71): Supply Voltage Brand	Powertrain
Daewoo	P1157	Engine Compartment Temperature Brand	Powertrain
DFFS	P1157	Motorized throttle track 2 signal failure Brand	Powertrain
DFFX	P1157	Throttle valve 2 position sensor Brand	Powertrain
DFXK	P1157	Manifold Pressure Sensor (G71): Supply Voltage Brand	Powertrain
EOBD	P1157	Suhu ruang enjin Brand	Powertrain
Ford	P1157	DTCs(Diagnostic Trouble Codes) P0156 or or P1158 Brand	Powertrain
Geely	P1157	Manifold Pressure Sensor (G71): Supply Voltage Brand	Powertrain
GM	P1157	Engine Compartment Temperature Brand	Powertrain
Holden	P1157	HO2S Circuit Low Voltage During Power Enrichment Bank 2 Sensor 2 Brand	Powertrain
Honda	P1157	No description available	Powertrain
Isuzu	P1157	No description available	Powertrain
Land Rover	P1157	No description available	Powertrain
Mahindra	P1157	No description available	Powertrain
Mazda	P1157	DTCs(Diagnostic Trouble Codes) P0156 or or P1158 Brand	Powertrain
Opel	P1157	Engine Compartment Temperature Brand	Powertrain
Peugeot	P1157	No description available	Powertrain
Porsche	P1157	No description available	Powertrain
Proton	P1157	No description available	Powertrain
Saab	P1157	Engine Compartment Temperature 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 11

These 7-character codes are manufacturer-specific variants of P1157 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P115704	Sleep mode pressure impossible (shutdown timeout) Brand	Powertrain
Peugeot	P115735	No description available	Powertrain
Peugeot	P115736	No description available	Powertrain
Peugeot	P115737	No description available	Powertrain
Peugeot	P115738	No description available	Powertrain
Peugeot	P115739	No description available	Powertrain
Peugeot	P115740	No description available	Powertrain
Mercedes-Benz	P115797	The on-board charger is in the reduced-power range. The system function is restricted. Brand	Powertrain
Mercedes-Benz	P1157FA	The on-board charger is in the reduced output power range - High Temp Brand	Powertrain
Mercedes-Benz	P1157FB	The on-board charger is in the reduced output power range - High Temp Brand	Powertrain
Mercedes-Benz	P1157FC	The on-board charger is in the reduced output power range - Low Temp Brand	Powertrain

6Related codes

Browse Pxxx codes or P115xx codes.