PowertrainP1412

Caution

Severity: Caution - get it checked when you can

2nd air valve circuit

30 brands affected · Description from Toyota 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 30

Brand	Code	Description	System
Ashok Leyland CV	P1412	EGR (Exhaust Gas Recirculation) Temperature Sensor. Sensor A. Communication Error Brand	Powertrain
BYD	P1412	NO. 275 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1412	EGR Pressure Sensor: Signal too Small Brand	Powertrain
Chrysler	P1412	Implausible Vehicle Speed Signal Received Brand	Powertrain
Daewoo	P1412	Exhaust Gas Recirculation Valve Frozen Brand	Powertrain
Daihatsu	P1412	Exhaust gas recirculation (EGR) lift sensor system Brand	Powertrain
DFFS	P1412	No description available	Powertrain
DFXK	P1412	EGR Pressure Sensor: Signal too Small Brand	Powertrain
EOBD	P1412	Ağ verisi Brand	Powertrain
Fiat	P1412	Implausible vehicle speed signal received Brand	Powertrain
Ford	P1412	If the DTC is not present, do not replace the EGR(Exhaust Gas Recirculation) valve. Further diagnosis is necessary Brand	Powertrain
Geely	P1412	EGR Pressure Sensor: Signal too Small Brand	Powertrain
GM	P1412	Exhaust Gas Recirculation Valve Frozen Brand	Powertrain
Holden	P1412	Exhaust Gas Temperature Sensor 2 Circuit Brand	Powertrain
Honda	P1412	No description available	Powertrain
Hyundai	P1412	No description available	Powertrain
Isuzu	P1412	No description available	Powertrain
Land Rover	P1412	Exhaust gas recirculation valve frozen Brand	Powertrain
Maserati	P1412	received vehicle speed signal implausible Brand	Powertrain
Mazda	P1412	If the DTC is not present, do not replace the EGR(Exhaust Gas Recirculation) valve. Further diagnosis is necessary Brand	Powertrain
Mitsubishi	P1412	DPF fault Brand	Powertrain
Opel	P1412	Exhaust Gas Recirculation Valve Frozen Brand	Powertrain
Perodua	P1412	Exhaust gas recirculation (EGR) lift sensor system Brand	Powertrain
Peugeot	P1412	No description available	Powertrain
Porsche	P1412	No description available	Powertrain
Proton	P1412	DPF fault Brand	Powertrain
Saab	P1412	Exhaust Gas Recirculation Valve Frozen Brand	Powertrain
Suzuki	P1412	2ND AIR/V CIRC Brand	Powertrain
Tata	P1412	No description available	Powertrain
Toyota	P1412	2nd air valve 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 3

These 7-character codes are manufacturer-specific variants of P1412 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P141200	Die Abgasklappe 2 hat Kurzschluss nach Plus. Brand	Powertrain
Mercedes-Benz	P14120C	Exhaust flap 2 has a short circuit to positive. Brand	Powertrain
Mercedes-Benz	P141212	Exhaust flap 2 has a short circuit to positive. Circuit Short To Battery Brand	Powertrain

6Related codes

Browse Pxxx codes or P141xx codes.