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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 P1623:

BMW:

Pedal Position Sensor Potentiometer Supply

Chrysler/Dodge/Jeep:

ASD Relay/Control De-Energize Too Soon

Citroen/Peugeot:

Immobilizer Code Word/ID Number Write Failure

Daewoo:

MIL OPEN / SHORT

Ford:

Immobilizer Code Word/ID Number Write Failure

GM:

Transmission Temp Pull-Up Resistor

Hyundai:

Diagnostic Lamp Power Stage Fault

Land Rover:

ECM Security Code Fault

Mazda:

lmmobilizer System Fault

Mercedes:

Immobilizer Code Word / ID Number Write Failure

Saab:

No Bus Data From TCM. See Fual Tracing 3:5 Bus and Diagnostic Communication.

Saturn:

Transaxle Temperature Sensor Pull-Up Resistor Fault

Volkswagen/Audi:

Data Bus Powertrain No Communication

Volvo:

Data Bus Powertrain No Communication