Try this site http://www.totalcardiagnostics.com/toad for more information on OBD Software. The amount of information available about on board diagnostic systems and their operation is quite large, and much reading can be found on the internet. For support, the various internet forums and manufactures sites can be great places to find information about your particular car or setup. Included below are some links to other OBDII scan tool manufacturers, many OBD Software packages, and various links we have found to be useful.