I've done a little research as far as troubleshooting goes. My problem started a couple months after I got my blazer and it had after market angel eye halos in it and some days only one low beam/both high beam would work, some days only low beams, and so on. So I decided to go get stock headlight assemblies from junk yard to see if the aftermarket ones were the issue and still had the same issue. Got new bulbs, checked fuses, had someone check my relay and was told it was alright, and had someone check a ground that was under the hood. But for the life of me I cannot remember where exactly that ground was and was wanting to check my grounds ??and wiring at fuse boxes?? before replacing the multifunction switch..... any advice would be appreciated!! 😊