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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:


Enter code:
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Definition of check engine code P1257:

Acura:

VTEC System Malfunction

Citroen/Peugeot:

Pedal Correlation PDS2 and HPDS

Ford:

Pedal Correlation PDS2 and HPDS

GM:

Supercharger System Overboost

Lincoln:

Pedal Correlation PDS2 and HPDS

Mercury:

Pedal Correlation PDS2 and HPDS

Oldsmobile:

Pedal Correlation PDS2 and HPDS

Volkswagen/Audi:

Engine Coolant System Valve Open

Volvo:

Engine Coolant System Valve Open