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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 P1778:

Citroen/Peugeot:

Transmission Reverse I/P Circuit Malfunction

Daewoo:

ELECTRONIC V/V MAL

Ford:

Transmission Reverse I/P Circuit Malfunction

Jaguar:

Transmission Reverse I/P Circuit

Kia:

Transmission Reverse I/P Circuit

Volkswagen/Audi:

Solenoid EV7 Electrical Malfunction

Volvo:

Solenoid EV7 Electrical Malfunction