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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 P1663:

BMW:

Immobilizer Control Module Not Coded Correctly

Citroen/Peugeot:

Fuel Demand Command Signal Circuit Malfunction

Ford:

Fuel Demand Command Signal Circuit Malfunction

GM:

Oil Life Lamp Control Circuit

Lexus:

OCV Circuit Malfunction (Bank 2)

Lincoln:

Fuel Demand Command Signal Circuit Malfunction

Mercury:

Fuel Demand Command Signal Circuit Malfunction

Oldsmobile:

Fuel Demand Command Signal Circuit Malfunction

Saab:

Charge Air Bypass Valve Circuit Short To B+

Toyota:

OCV Circuit Malfunction Bank 2

Volkswagen/Audi:

Injector,activation - short to positive