1990 Cadillac Seville

Electrical problem
1990 Cadillac Seville V8 All Wheel Drive Automatic

i have no gages working on the dash such as my gas and heating, I checked all the fuses under the dash and found none of them blown. I took it in and he said it might be something called a b c m body computer, if so what does it do and where is it located, thank you very much.