Scan Tool V.A.G 1551
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 Volkswagen EuroVan, 2002 Volkswagen EuroVan, 2001 Volkswagen EuroVan, 2000 Volkswagen EuroVan, and 1999 Volkswagen EuroVan. However, it is still accessible from the selected car via links, so may be relevant.
From July 1997 a further number on the right next to the Diagnostic Trouble Code (DTC) will be displayed/printed-out when checking the DTC memory (up-to-date program card version of V.A.G 1551). This number indicates the type of malfunction, which is also given again in words under the affected component.