2001 Cadillac Deville power locks no longer work what could that be?

i have a 2001 cadillac deville and the power locks no longer work nor the trunk unless i use the key what could that be?2001 Cadillac Deville power locks no longer work what could that be?You may have a blown fuse. Have someone check that first.2001 Cadillac Deville power locks no longer work what could that be?Blown fuse, maybe. Or maybe they are disconnected.2001 Cadillac Deville power locks no longer work what could that be?Blown Fuse