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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 P1789:

Chrysler/Dodge/Jeep:

Hydraulic Pressure Switch: OD/2-4

Citroen/Peugeot:

Pressure Control Solenoid -B- Short Circuit

Ford:

Pressure Control Solenoid "B" Short Circuit

Jaguar:

Ignition Supply Malfunction

Kia:

Ignition Supply Malfunction

Lincoln:

Pressure Control Solenoid "B" Short Circuit

Mazda:

3-2T/CCS Circuit Shorted

Mercedes:

Pressure Control Solenoid B Short Circuit

Mercury:

Pressure Control Solenoid "B" Short Circuit

Oldsmobile:

Pressure Control Solenoid "B" Short Circuit

Volkswagen/Audi:

Idle Speed Intervention Circ. Error Message from Engine Contr.

Volvo:

Idle Speed Intervention Circ. Error Message from Engine Contr.