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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)