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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 P1531:

Alfa Romeo:

AC compressor clutch relay - circuit malfunction

BMW:

B Camshaft Position Actuator Control Open Circuit Bank 1

Citroen/Peugeot:

Invalid Test - Accelerator Pedal Movement

Fiat:

A/C compressor relay

Ford:

Invalid Test - Accelerator Pedal Movement

GM:

A/C Low Side Temperature Sensor Fault

Lincoln:

Invalid Test - Accelerator Pedal Movement

Mercury:

Invalid Test - Accelerator Pedal Movement

Oldsmobile:

Invalid Test - Accelerator Pedal Movement

Porsche:

Camshaft Adjustment Bank 1

Saab:

Pedal Position Sensor 1 & 2 Circuit Adapted Sum Out Of Range

Volkswagen/Audi:

Camshaft Control Circuit open

Volvo:

Camshaft Control Circuit open