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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 P1657:

Chrysler/Dodge/Jeep

J1850 Communication Bus Invalid IFR Received

GM

1-4 Upshift Solenoid Control Circuit

Jaguar

Throttle motor relay driver on malfunction

Lincoln

CAN Link Chip Malfunction

Mercury

CAN Link Chip Malfunction

Oldsmobile

CAN Link Chip Malfunction

Saab

A/C Relay Coil Circuit Short To B+

Toyota

Purge Cut VSV Circuit Malfunction

Volkswagen/Audi

A/C clutch relay circuit short to B +

Volvo

A/C clutch relay circuit short to B +

Ford

CAN LINK CHIP MALFUNCTION
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