Diagnostic Trouble Code (DTC) memory, checking (function 02)

NOTE: DTCs stored in memory along with corresponding malfunction descriptions can only be displayed by initiating the On Board Diagnostic program and checking DTC memory (function 02).

Connect VAG 1551 Scan Tool, select operating mode 1 "Rapid data transfer", switch on ignition and enter address word 19, "Gateway".
Press -Q- button to confirm input.
Press → button until "Select function" appears in display.
Switch on printer with the PRINT button (indicator lamp in button lights up).

Indicated on display:

Rapid data transfer HELP
Select function XX

Press buttons -0- and -2- to select "Check DTC memory" function 02.

Indicated on display:

Rapid data transfer Q
02 - Check DTC memory

Press -Q- button to confirm input.

The number of stored DTCs appears in the display.

X DTC's recognized!

Stored DTCs are displayed and printed out one after another.

Check print-out against DTC table and repair all malfunctions as necessary. Refer to Diagnostic Trouble Code (DTC) table .

If "No DTC recognized" is displayed the program will return to the initial position after pressing → button.

No DTC recognized! →

Indicated on display:

Rapid data transfer HELP
Select function XX

If something else is displayed:

Refer to Scan tool operating instructions

End Output (function 06). Refer to End Output (function 06) .
Switch ignition off
Disconnect VAG 1551 from Data Link Connector (DLC).