I actually have no clue where this is and how to check it.
Cks, if you are handy I suggest getting the service manual for your bike. Taking the plastic off the tank and taking the tank off the bike are the hardest parts. Go to the Ducati site and download the parts list for your bike. This will give you a schematic for all the components of your bike. If you have any problems, take a picture or ask a question. There is loads of knowledge on this site.
M1100 EVO Anniversary 140/200