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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:


Enter code:
+
P
-
+
0
-
+
0
-
+
0
-
+
0
-


Definition of check engine code P1746:

BMW:

Transmission Control Module Output Stage

Citroen/Peugeot:

Pressure Control Solenoid -A- Open Circuit

Daewoo:

TCU L LINE

Ford:

Pressure Control Solenoid "A" Open Circuit

Jaguar:

Pressure Regulator 2

Kia:

Pressure Regulator 2

Lincoln:

Electronic Pressure Control Solenoid A - Open Circuit

Mazda:

Electronic Pressure Control Solenoid Circuit Open

Mercedes:

Electronic pressure control solenoid circuit open

Mercury:

Electronic Pressure Control Solenoid A - Open Circuit

Oldsmobile:

Electronic Pressure Control Solenoid A - Open Circuit

Porsche:

Control Unit Detective (Relay)

Volkswagen/Audi:

Transm. Contr. Unit Relay Malfunction

Volvo:

Transm. Contr. Unit Relay Malfunction

GM:

NSBU Mode "P" Circuit