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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 P1221:

Alfa Romeo:

Air Flow Meter Or Circuit

BMW:

Pedal Position Sensor 2 Range/Performance Problem

Citroen/Peugeot:

Traction Control System Malfunction

Fiat:

Accelerator potent. track 1

Ford:

Traction Control System Malfunction

GM:

Fuel Pump Secondary Circuit Low

Jaguar:

Pedal Demand Sensor B Circuit Range/Performance

Kia:

Pedal Demand Sensor B Circuit Range / Performance

Lincoln:

Traction Control System Malfunction

Mercedes:

CAN communication,ETC or ETS interrupted

Mercury:

Traction Control System Malfunction

Nissan:

Throttle Actuator Circuit

Oldsmobile:

Traction Control System Malfunction

Toyota:

Venturi Control Circuit Malfunction

Volkswagen/Audi:

Cylinder shut - off exhaust valves Short circuit to ground

Volvo:

Cylinder shut - off exhaust valves Short circuit to ground