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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 P1691:

Chrysler/Dodge/Jeep:

Fuel injection pump controller calibration error

Citroen/Peugeot:

Turbo Pressure Control Solenoid Circuit Malfunction

Fiat:

Secure breakdown

Ford:

Turbo Pressure Control Solenoid Circuit Malfunction

GM:

Coolant Gage Circuit Low Voltage

Mercedes:

Turbo Pressure Control Solenoid Circuit

Mini:

Electronic throttle control monitor level 2/3 - motorised throttle control engine speed ; limitation error

Plymouth:

Fuel Injection Pump Controller Calibration Failure

Porsche:

Malfunction Indicator Lamp

Saab:

Check Engine Light Open Circuit

Saturn:

Coolant Gauge Circuit Fault

Volkswagen/Audi:

Malfunction Indication Light Open

Volvo:

Malfunction Indication Light Open