VAG 1551 Scan Tool

WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2007 Volkswagen Golf, 2006 Volkswagen Golf, 2005 Volkswagen Jetta, 2005 Volkswagen Golf, and 2004 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

The display group numbers will be 3 digits from July 1996 (up-to-date VAG 1551 program card).
From July 1997 a further number on the right next to the DTC will be displayed/printed out when checking the DTC memory (up-to-date program card version of VAG 1551). This number indicates the type of malfunction, which is also given again in text under the affected component.