Erasing DTC memory: Notes
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
After erasing DTC memory its contents will automatically be indicated. If DTC memory cannot be erased, again read DTC memory and repair DTCs