Cadillac Repair: 1991 Cadillac Sedan Deville BCM Computer, cadillac sedan deville, auto parts store

Question
Where do I locate the BCM computer in my 1991 Cadillac Deville? I need to rid myself of the "d" symbol on the fuel minder gauge- And would I need to purchase this item from a dealer or is this something a auto parts store would carry?

Answer
You can get a new one at any auto parts store and change it yourself with my help.

If you are mechanicaly inclined or know of someone who is, You will need a DIGITAL MULTIMETER, Simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.