Fault code lookup

PowertrainP22A0

Caution

Severity: Caution - get it checked when you can

NOx sensor circuit low bank 1 sensor 2

16 brands affected · Description from Toyota data.

Key terms: Control module: a small computer that runs one part of the car · Bank 1: the side of the engine containing cylinder 1 · 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

  1. Sensor or actuator fault
  2. Wiring or connector fault
  3. Vacuum or intake leak
  4. Fuel or ignition problem
  5. 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 16

BrandCodeDescriptionSystem
Ashok Leyland CVP22A0No description available Powertrain
DaewooP22A0No description available Powertrain
EOBDP22A0Krug senzora NOx niz 1 senzor 2 BrandPowertrain
GMP22A0No description available Powertrain
HoldenP22A0NOx Sensor 2 Circuit Low Voltage BrandPowertrain
HyundaiP22A0No description available Powertrain
IsuzuP22A0No description available Powertrain
Land RoverP22A0NOx Sensor Circuit BrandPowertrain
MaseratiP22A0NOx Sensor 1/2 Circuit Low BrandPowertrain
MitsubishiP22A0No description available Powertrain
OpelP22A0No description available Powertrain
PeugeotP22A0No description available Powertrain
SaabP22A0No description available Powertrain
TataP22A0No description available Powertrain
ToyotaP22A0NOx sensor circuit low bank 1 sensor 2 BrandPowertrain
VolkswagenP22A0NOx sensor 2 bank 1: signal too small; No signal/communication BrandPowertrain

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.

5Related codes

Browse Pxxx codes or P22Axx codes.

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