2006 Trail Blazer right low beam out.

Travis, first things first, I think this is just a coincidence though. Swap #45 and #46 relays under the hood, see if you get lights, probably so. If one side still isn't lit, see if you're getting power to the socket. The sockets and wires tend to melt, the wire gauge is just too small, so check this too. There's actually a recall for this relay by the way, but would affect both low beams at same time.