PowertrainP1143

Caution

Severity: Caution - get it checked when you can

Signal does not drop below threshold

28 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 28

Brand	Code	Description	System
BMW	P1143	Signal does not drop below threshold Brand	Powertrain
BYD	P1143	NO. 324 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1143	Load Calculation--Too High Brand	Powertrain
Daewoo	P1143	Heated O2 Sensor 1 Brand	Powertrain
Daihatsu	P1143	Throttle knob system Brand	Powertrain
DFFS	P1143	No description available	Powertrain
DFFX	P1143	rear oxygen heating circuit failure Brand	Powertrain
DFXK	P1143	Load Calculation Cross Check: Upper Limit Exceeded Brand	Powertrain
EOBD	P1143	Mạch núm ga cao Brand	Powertrain
Geely	P1143	Load Calculation--Too High Brand	Powertrain
GM	P1143	Heated O2 Sensor 1 Brand	Powertrain
Great Wall	P1143	Load Calculation--Too High Brand	Powertrain
Holden	P1143	No description available	Powertrain
Hyundai	P1143	No description available	Powertrain
Land Rover	P1143	No description available	Powertrain
Mahindra	P1143	No description available	Powertrain
Mitsubishi	P1143	Module2(Cell7) harness Open Brand	Powertrain
Nissan	P1143	Heated Oxygen Sensor (HO2S) 1 Brand	Powertrain
Perodua	P1143	Throttle knob system Brand	Powertrain
Peugeot	P1143	No description available	Powertrain
Porsche	P1143	Lambdaregelabweichung (durch Kurztest) Bank 2: oberer Grenzwert überschritten Brand	Powertrain
Proton	P1143	Load Calculation--Too High Brand	Powertrain
Renault	P1143	No description available	Powertrain
Saab	P1143	Heated O2 Sensor 1 Brand	Powertrain
Subaru	P1143	Pressure Sensor Circuit Range/Performance Brand	Powertrain
Suzuki	P1143	No description available	Powertrain
Toyota	P1143	Load calculation cross check upper limit exceeded Brand	Powertrain
Volkswagen	P1143	Load Calculation Cross Check: 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 12

These 7-character codes are manufacturer-specific variants of P1143 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P114300	DebEvent TypError Prio3 2Trip - BW Brand	Powertrain
SsangYong	P114302	A problem occurred that prevented normal operation Brand	Powertrain
Peugeot	P114340	No description available	Powertrain
Peugeot	P114341	No description available	Powertrain
Peugeot	P114342	No description available	Powertrain
Peugeot	P114343	No description available	Powertrain
Peugeot	P114344	No description available	Powertrain
Peugeot	P114381	No description available	Powertrain
Peugeot	P114382	No description available	Powertrain
Peugeot	P114384	No description available	Powertrain
Peugeot	P114393	No description available	Powertrain
Peugeot	P114395	No description available	Powertrain

6Related codes

Browse Pxxx codes or P114xx codes.