2000 Deville Heated Seats

The Heated Seat Feature on our 2000 Deville, Front Left and Right Seats stopped working at the same time. I have searched the problem, however can't find the problem. Missing B+ voltage on heat coils, however can't locate the path that would effect both seats.

and there isnt a fuse for this? also, if both went out at once,i would guess that the power to the switches is out