PowertrainP012C

Caution

Severity: Caution - get it checked when you can

Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low

25 brands affected · Description from Toyota data.

Key terms: Turbocharger: an exhaust-driven fan that pushes extra air into the engine · Supercharger: an engine-driven fan that pushes extra air into the engine · Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the fuel, air and oxygen sensor range, which also includes coolant temperature faults.

2Common causes

Dirty or faulty mass air flow sensor
Vacuum or intake air leak
Weak fuel pump or clogged fuel filter
Faulty fuel injector
Faulty oxygen sensor
Wiring or connector fault

3Can I drive?

Caution · drive with care

Have it diagnosed if the engine runs badly or the code keeps returning. Because this range includes coolant temperature sensors, watch the temperature gauge: if it climbs into the red, or the engine overheats or stalls, stop safely and get professional help.

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 25

Brand	Code	Description	System
Ashok Leyland CV	P012C	No description available	Powertrain
BAIC Motor	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
BYD	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Chery	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Daewoo	P012C	Boost Pressure Sensor Circuit Low Voltage Brand	Powertrain
DFFS	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
DFFX	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
DFXK	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
EOBD	P012C	Turbolader/kompressor inntakstrykksensor 'A' krets lav Brand	Powertrain
Geely	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
GM	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Great Wall	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Hafei	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Holden	P012C	Supercharger Inlet Pressure Sensor Circuit Low Voltage Brand	Powertrain
Honda	P012C	No description available	Powertrain
Hyundai	P012C	No description available	Powertrain
Isuzu	P012C	No description available	Powertrain
Land Rover	P012C	No description available	Powertrain
Maserati	P012C	Turbocharger/supercharger inlet pressure sensor 1 circuit low Brand	Powertrain
Opel	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Peugeot	P012C	No description available	Powertrain
Saab	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
MG (SAIC)	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Toyota	P012C	Turbocharger/Supercharger Inlet Pressure Sensor Circuit Low Brand	Powertrain
Volkswagen	P012C	Turbocharger/supercharger inlet pressure sensor: short to ground; Defective 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 1

These 7-character codes are manufacturer-specific variants of P012C and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P012C11	The pressure sensor upstream of the turbocharger has a short circuit to ground. There is a short circuit to ground. Brand	Powertrain

6Related codes

Browse Pxxx codes or P012xx codes.