GMC Repair: Head Lights, fuse block, gmc envoy

Question
I own a 2003 GMC Envoy and the problem I'm having is both head lights don't work. I was told that is the multi function switch. Does this sound accurate to you?

Answer
Hi
More than likely, if both went out at same time, it is the headlamp "module" which is actually a relay located in the underhood fuse block, next to the battery. I'm not sure the EXACT position, but it is a small black relay and should be listed as HDLMP, or LowHdlmp, something along those lines. I have seen many many more of these go bad, than the multi function switch.
I hope this helps