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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 P1271:

BMW:

Ambient Air Pressure Sensor Electrical

Chrysler/Dodge/Jeep:

A/C Clutch Control Circuit 2 Block Reserved - Not Used 02-Sep-2004

Citroen/Peugeot:

Cylinder #1 High To Low Side Open

Ford:

Cylinder #1 High To Low Side Open

GM:

Accelerator Pedal Position (APP) Sensor 1-2 Correlation

Lincoln:

Cylinder #1 High To Low Side Open

Mercury:

Cylinder #1 High To Low Side Open

Nissan:

Air / Fuel Ratio Sensor 1

Oldsmobile:

Cylinder #1 High To Low Side Open

Volkswagen/Audi:

Injector 4 - control limit not reached