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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 P1704:

Chrysler/Dodge/Jeep:

Input Speed Sensor 1 Overspeed

Citroen/Peugeot:

Digital TRS Failed to Transition States in KOEO / KOER

Daewoo:

TPS -HIGH INPUT

Fiat:

Auto transmission

Ford:

Digital TRS Failed to Transition States in KOEO / KOER

Lincoln:

Transmission system problems

Mercury:

Transmission system problems

Oldsmobile:

Transmission system problems

Porsche:

Kickdown Switch

Volkswagen/Audi:

Kick Down Switch Malfunction

Volvo:

Kick Down Switch Malfunction

GM:

Pressure Switch "C" Circuit High

Subaru:

2-4 Brake Timing Solenoid Valve Circuit Malfunction