Displaying and Reading Trouble Codes

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 (ST), input address word 56, "Radio", and press -> button until "Select function XX" appears in display. Scan Tool Connecting and Initial Checks
- Switch on printer with the Print button (indicator lamp in button lights up).

Indicated on display (select function):


Rapid data transfer HELP
Select function XX


- Press buttons 0 and 2 to select function 02, "check Diagnostic Trouble Code (DTC) memory".

Indicated on display:


Rapid data transfer Q
02 - Check DTC memory


- Press -Q- button to confirm input.

The number of stored malfunctions appears in the display.


X DTC recognized! ->


The number of stored DTCs or "No DTCs recognized" appears in the display and are printed out one after another.

- When the last DTC has been displayed and printed out, rectify malfunctions as described in DTC table: About Trouble Codes

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


No DTC recognized! ->


Indicated on display (select function):


Rapid data transfer HELP
Select function XX


If display not indicated as shown: See Scan tool operating instructions
- End output (function 06).
- Switch off ignition and disconnect Data Link Connector (DLC).


NOTE:
If DTCs were recognized, follow the sequence below:
- 1. Rectify malfunction.
- 2. Erase Diagnostic Trouble Code (DTC) memory (function 05).
- 3. Check Diagnostic Trouble Code (DTC) memory (function 02).