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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 P1857:

Citroen/Peugeot:

Transmission Transfer Case Contact Plate "C" Short Circuit To Ground

Ford:

Transmission Transfer Case Contact Plate 'C' Short Circuit To Ground

Volkswagen/Audi:

Load Signal Error Message from Engine Contr.

Volvo:

Load Signal Error Message from Engine Contr.

GM:

3-2 Solenoid Circuit Low Voltage