Fault code lookup

PowertrainP225C

Caution

Severity: Caution - get it checked when you can

NOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1)

17 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · Bank 1: the side of the engine containing cylinder 1 · SAE J2012: the standard generic code list · 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 17

BrandCodeDescriptionSystem
Ashok Leyland CVP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
ChryslerP225CNOx sensor performance - signal stuck high bank 1 sensor 1 BrandPowertrain
DaewooP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
EOBDP225CNOx-sensor ytelse - signal skjev/fast høyt bank 1 sensor 1 BrandPowertrain
GMP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
HoldenP225CNOx Sensor Offset High Error Sensor 1 BrandPowertrain
IsuzuP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
Land RoverP225CP225C-85 Pre selective catalytic reduction NOx BrandPowertrain
MaseratiP225CNOx Sensor 1/1 Performance - Signal Stuck High BrandPowertrain
MitsubishiP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
OpelP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
PeugeotP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
SaabP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
SubaruP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
SuzukiP225CMonitoring of the upper plausibility limit of the NOx sensor before SCR BrandPowertrain
TataP225CNOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 1) SAEPowertrain
ToyotaP225CNOx sensor performance - signal biased/stuck high bank 1 sensor 1 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 P225xx codes.

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