Fault code lookup

PowertrainP3279

Caution

Severity: Caution - get it checked when you can

Linear oxygen sensor B3 S1: Pump Current Wire: Short to Ground

14 brands affected · Description from Chery data.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · 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 14

BrandCodeDescriptionSystem
Mercedes-BenzP3279No description available Powertrain
CheryP3279Linear oxygen sensor B3 S1: Pump Current Wire: Short to Ground BrandPowertrain
DaewooP3279No description available Powertrain
DFXKP3279Linear Oxygen Sensor B3 S1: Pump Current Wire: Short to Ground BrandPowertrain
EOBDP3279Circuit wervelklep BrandPowertrain
GeelyP3279Linear Oxygen Sensor B3 S1: Pump Current Wire: Short to Ground BrandPowertrain
GMP3279No description available Powertrain
HoldenP3279No description available Powertrain
MitsubishiP3279Module high temperature BrandPowertrain
OpelP3279No description available Powertrain
PeugeotP3279No description available Powertrain
ProtonP3279Module high temperature BrandPowertrain
SaabP3279No description available Powertrain
SprinterP3279No description available 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.

5Related codes

Browse Pxxx codes or P327xx codes.

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