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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 P1304:

Acura:

Cylinder 4 Misfire

Citroen/Peugeot:

EGR Calibration High

Daewoo:

PHASE SNSR

Ford:

EGR Calibration High

Lincoln:

EGR Calibration High

Mercury:

EGR Calibration High

Oldsmobile:

EGR Calibration High

Saab:

Cylinder 4 Misfire Detected. Catalyst Damaging.