93 Silverado running 4hi mod with 6K 55watt highs and lows... Tonight after a normal Friday night I got in my truck and turned the lights on but they didn't come on. Checked all the fuss and the mod wiring, everything checked out. So I tried to flick my hi beams on and everything turned back on. Everything worked normal but on the way home flicking my hi beams off, all lights went out for a split second then lows came on. Scared me to death but made it home. Got to toying with it and ultimately my multifunction switch (I think it's called that) wouldn't click when pulled toward me. It was causing all kinds of weird combos with the headlights but all 4 would be on when I held it toward me in place. It just won't "click" back and turn on the high beams. How can I fix this? Or what's causing it to no engage? Thanks