Check DTC Memory (Function 02)

NOTE: The DTC display information is updated only when initiating the On Board Diagnostic (OBD) or "Erase DTC Memory" function 05.


- Switch printer on by pressing PRINT button (indicator lamp in button lights up).

Carrying out "Check DTC Memory" function 02

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.

Display indicates the number of stored malfunctions.


X DTC recognized ->


- The stored malfunctions are shown and then printed in series.
- Using malfunction print-out, refer to DTC table and repair malfunctions

If the message "No DTC recognized" is displayed, the program can be returned to the starting point by pressing the button.


No DTC recognized ->


Indicated on display


Rapid data transfer HELP
Select function XX


If something else is displayed:
See Scan tool operating instructions
- Erase DTC Memory (function 05).
- End Output (function 06).
- Switch ignition off and Disconnect VAG 1551 Scan Tool (ST) from Data Link Connector (DLC).