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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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Definition of check engine code P1817:

Citroen/Peugeot:

Transmission Neutral Safety Switch Open Circuit

Ford:

Transmission Neutral Safety Switch Open Circuit

GM:

TFP Valve Position Sw. - Reverse With Drive Ratio

Subaru:

SPORT MODE SWITCH CIRCUIT (MANUAL SWITCH)