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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 P1656:

Chrysler/Dodge/Jeep

J1850 Communication Bus Busy / Not Available

Geo

Intake CMP Actuator Solenoid Control Circuit

GM

Driver 2 Line 6

Honda

Problem in PCM - toVTM - 4 Control Unit Communications Circuit

Jaguar

Amplifier failure for valve sensor circuit malfunction

Lexus

OCV Circuit Malfunction (Bank 1)

Lincoln

CAN Link PCM - PCM Circuit - Network

Mercury

CAN Link PCM - PCM Circuit - Network

Oldsmobile

CAN Link PCM - PCM Circuit - Network

Porsche

Coolant Shutoff Valve

Saab

A /C Relay Coil Circuit. Open / Short to Ground.

Scion

OCV Circuit.

Toyota

OCV Circuit Malfunction Bank 1

Volkswagen/Audi

A/C clutch relay circuit short to ground

Volvo

A/C clutch relay circuit short to ground

Ford

CAN LINK PCM / PCM CIRCUIT / NETWORK
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