PowertrainP0122

Caution

Severity: Caution - get it checked when you can

Throttle/Pedal Position Sensor/Switch A Circuit Low Input

45 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

The throttle position sensor signal is lower than the range the engine computer considers possible.

2Common causes

Faulty throttle position sensor
Damaged wiring or connector
Corroded connector pins
Throttle body fault
Engine control module fault

3Can I drive?

Caution · drive with care

Usually safe to drive gently. If the car loses power or goes into limp mode, stop safely and have it checked.

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 45

Brand	Code	Description	System
Ashok Leyland CV	P0122	Throttle Brand	Powertrain
BAIC Motor	P0122	Throttle Position Low Voltage Brand	Powertrain
Mercedes-Benz	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
BMW	P0122	Signal below threshold Brand	Powertrain
BYD	P0122	TP sensor(main) low Brand	Powertrain
Chery	P0122	TP sensor(main) low Brand	Powertrain
Chrysler	P0122	TPS/APP Circuit Low Brand	Powertrain
Daewoo	P0122	Throttle Position Sensor 1 Voltage Low Brand	Powertrain
Daihatsu	P0122	Throttle motor disconnection Brand	Powertrain
DFFS	P0122	Motorized throttle track 1 signal failure Brand	Powertrain
DFFX	P0122	TP sensor(main) low Brand	Powertrain
DFXK	P0122	Throttle position low voltage short Brand	Powertrain
EOBD	P0122	Kaheldi/aktsi asendianduri/lüliti 'A' ahel madal Brand	Powertrain
Fiat	P0122	TPS/APP Circuit low Brand	Powertrain
Ford	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Geely	P0122	TP sensor(main) low Brand	Powertrain
GM	P0122	failure record data Brand	Powertrain
Great Wall	P0122	TP sensor(main) low Brand	Powertrain
Hafei	P0122	TP sensor(main) low Brand	Powertrain
Holden	P0122	Accelerator Pedal Position (APP) System Brand	Powertrain
Honda	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Hyundai	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Isuzu	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Land Rover	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Mahindra	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Maserati	P0122	Throttle Position Sensor (TPS) 1 circuit low Brand	Powertrain
Mazda	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Mitsubishi	P0122	TPS(main) low Brand	Powertrain
Nissan	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Opel	P0122	failure record data Brand	Powertrain
Perodua	P0122	Throttle motor disconnection Brand	Powertrain
Peugeot	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Porsche	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Proton	P0122	TPS(main) low Brand	Powertrain
Renault	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Saab	P0122	failure record data Brand	Powertrain
MG (SAIC)	P0122	Inlet Air Temperature Input - Circuit fault Brand	Powertrain
Smart	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Sprinter	P0122	Throttle/Pedal Position Sensor/Switch A Circuit Low Input SAE	Powertrain
Subaru	P0122	Throttle Position Sensor A Low Input Brand	Powertrain
Suzuki	P0122	Throttle / Pedal Position Sensor / Switch 'A' Circuit Low Brand	Powertrain
SWM Motor	P0122	Throttle position sensor A circuit undervoltage Brand	Powertrain
Tata	P0122	Throttle Position Low Brand	Powertrain
Toyota	P0122	Electronic throttle position sensor 1 circuit low voltage Brand	Powertrain
Volkswagen	P0122	Throttle position sensor (G69): signal too low; 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 5

These 7-character codes are manufacturer-specific variants of P0122 and may be reported by some scan tools.

Brand	Code	Description	System
Hyundai	P012200	is set when the voltage below minimum output voltage of ACV - is detected for more than 0.1 sec. This code is due to short to ground in ACV circuit or ACV, ECM Brand	Powertrain
Porsche	P012200	No description available	Powertrain
SsangYong	P012200	Throttle/Pedal position sensor/switch 'A' circuit low input Brand	Powertrain
Volvo	P012200	The diagnostic trouble code (DTC) is only generated if any of the diagnostic trouble codes ECM-P012000, ECM- or ECM-P012300 have been detected Brand	Powertrain
Mercedes-Benz	P012286	Communication with control unit 'Traction system' has a malfunction. Missing Message Brand	Powertrain

6Related codes

Browse Pxxx codes or P012xx codes.