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OBDII/EOBD diagnostics trouble codes definition

If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX).

Also there is a list of more than 13500 additional manufacturer specific codes.

Supported manufacturers with specific OBD2 codes:


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Definition of check engine code P1131:

BMW

HO2S 2 Bank 2 Dynamic Test Failure

Chrysler/Dodge/Jeep

Fuel Pressure Regulator Valve

Citroen/Peugeot

Lack Of HO2S Switch - Sensor Indicates Lean

Daewoo

FUEL CORR RESISTANCE MAL

Ford

Lack Of HO2S Switch - Sensor Indicates Lean

GM

Heated Oxygen Sensor (HO2S) Circuit Low Variance Bank 1 Sensor 2

Jaguar

Lack of H02S-11 switch, sensor indicates lean

Land Rover

Oxygen Sensor Engine Lean *Codes* A U

Lincoln

Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1

Mazda

HO2S Bank 1 Sensor 1 Signal Below 0.45v (A/F Ratio Too Lean)

Mercedes

H02S - 11 signal above 0.45v (A/F ratio too lean)

Mercury

Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1

Nissan

Swirl Control Solenoid Valve

Oldsmobile

Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1

Saab

O2S. Switch point - lean. Sensor 1

Volkswagen/Audi

Bank2 - Sensor1 Internal Rsistance too High

Volvo

Bank2 - Sensor1 Internal Rsistance too High

Subaru

Front oxygen sensor circuit malfunction (short circuit)
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