Fault code lookup

PowertrainP2BAA

Caution

Severity: Caution - get it checked when you can

NOx exceedance - low reagent consumption

22 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

  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 22

BrandCodeDescriptionSystem
Ashok Leyland CVP2BAAEvaporative Emission Control System Malfunction. Pressure Sensor. Sensor B. Communication Error BrandPowertrain
BAIC MotorP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
BYDP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
CheryP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
DaewooP2BAANo description available Powertrain
DFFSP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
DFFXP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
DFXKP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
EOBDP2BAANOx 超過 - 低還元剤消費量 BrandPowertrain
GeelyP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
GMP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
Great WallP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
HafeiP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
HoldenP2BAAExhaust NOx Concentration High - Low Reductant Consumption BrandPowertrain
HyundaiP2BAANo description available Powertrain
Land RoverP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
OpelP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
PeugeotP2BAANo description available Powertrain
SaabP2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
MG (SAIC)P2BAANOx Exceedence - Low Reagent Consumption BrandPowertrain
TataP2BAANo description available Powertrain
ToyotaP2BAANOx exceedance - low reagent consumption 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 P2BAxx codes.

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