Fault code lookup

PowertrainP3284

Caution

Severity: Caution - get it checked when you can

Linear oxygen sensor B3 S1: Reference Voltage: Implausible

15 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 15

BrandCodeDescriptionSystem
Mercedes-BenzP3284No description available Powertrain
CheryP3284Linear oxygen sensor B3 S1: Reference Voltage: Implausible BrandPowertrain
DaewooP3284No description available Powertrain
DFXKP3284Linear Oxygen Sensor B3 S1: Reference Voltage: Implausible BrandPowertrain
EOBDP3284Module suhu tinggi BrandPowertrain
GeelyP3284Linear Oxygen Sensor B3 S1: Reference Voltage: Implausible BrandPowertrain
GMP3284No description available Powertrain
HoldenP3284No description available Powertrain
HondaP3284No description available Powertrain
MitsubishiP3284Module high temperature BrandPowertrain
OpelP3284No description available Powertrain
PeugeotP3284No description available Powertrain
ProtonP3284Module high temperature BrandPowertrain
SaabP3284No description available Powertrain
SprinterP3284No 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 P328xx codes.

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