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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 P1378:

BMW:

ECM Bank 2 Knock Control Self-Test Malfunction

Volkswagen/Audi:

Cyl.8,ignition circuit short to ground

Volvo:

Cyl.8,ignition circuit short to ground

Ford:

FUEL INJECTOR CONTROL MODULE SYSTEM VOLTAGE LOW