Hey all. I have 4 headlights. Both my low beams work fine. When I turn on my hi beams, the drivers side low beam go out and no hi beam. But both lights work fine on passenger side. I took both light assemblies apart and compared wiring, all is fine. I changed both lo & hi beams on drivers side, didnt fix problem. Tested all wires on drivers side inside of headlight housing, all is ok. Whats yr thoughts? Where do I look next?