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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 P1784:

Chrysler/Dodge/Jeep

Pressure switch circuit: LR

Citroen/Peugeot

Transmission Mechanical Failure - First And Reverse

Ford

Transmission Mechanical Failure - First And Reverse

Lincoln

Transmission Mechanical Failure - First And Reverse

Mercury

Transmission Mechanical Failure - First And Reverse

Oldsmobile

Transmission Mechanical Failure - First And Reverse

Volkswagen/Audi

Shift up / down Wire Open / Short to Ground

Volvo

Shift up / down Wire Open / Short to Ground
If you can not find the error description, please let us know and we will try to help: