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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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P
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Definition of check engine code P1251:

Alfa Romeo:

ECU Faulty

Chrysler/Dodge/Jeep:

Vacuum Reservoir Control Circuit Low

Citroen/Peugeot:

Air Mixture Solenoid Circuit Malfunction

Ford:

Air Mixture Solenoid Circuit Malfunction

Jaguar:

Throttle Position

Kia:

Throttle Position

Mercedes:

Air Mixture Solenoid Circuit

Saab:

Check Engine Lamp, Output From Control Module Low

Volkswagen/Audi:

Start of Injection Solenoid Circ Short to B +

Volvo:

Start of Injection Solenoid Circ Short to B +