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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 P1777:

Citroen/Peugeot:

Ignition Retard Request Circuit Fault

Daewoo:

POWER CONTROL UNIT - OUTPUT MAL

Ford:

Ignition Retard Request Circuit Fault

Jaguar:

Ignition Retard Request Circuit

Kia:

Ignition Retard Request Circuit

Land Rover:

Gearbox Ignition Retard Request Line Fault

Mercedes:

Torque Down Response Signal Circuit

Volkswagen/Audi:

Hydraulic Pressure Sensor 2 range / performance

Volvo:

Hydraulic Pressure Sensor 2 range / performance