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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 P1603:

BMW:

Control Module Self-Test, Torque Monitoring

Chrysler/Dodge/Jeep:

PCM Internal Dual-Port RAM Communication Failure

Citroen/Peugeot:

EEPROM Malfunction

Daewoo:

ECU - TCS COMM LINE MAL

Fiat:

Control Unit Power Supply

Ford:

EEPROM Malfunction

GM:

Loss of SDM Serial Data

Jaguar:

EEPROM Malfunction

Kia:

EEPROM Malfunction

Mazda:

Immobilizer System Fault

Mercedes:

No or incorrect CAN message from control unit EIS

Saab:

Internal Control Module Malfunction

Volkswagen/Audi:

Internal Control Module Malfunction

Volvo:

Internal Control Module Malfunction