I think the low beam lamps have two filaments. So it's possible that those low beam filaments in the "low beam" lamps are burnt out. When the headlights are on dim, only the two outside bulbs burn. When the high beams are on then all four will burn.
dont
you blew out a fuse under the hood just change it and it should work
dimmer switch wore out or you might just have running lights.
make sure high beams are not on
High and low beams have differant filaments. You have to replace the bulbs.
your bulbs are burnt out. when you switch on the high beams its only the high beams. but when you flash your brights it lights up both high and low beams.
Bad bulbs Bad dimmer switch
the fog lights work with the low beams , they wont come on with the high beams
Have you checked the drl relay?
The low beams and high beams are both H7 bulbs. The fog lights are H3's.
Low beams and fog lights if equipped. High beams only light-up the fog more.
I believe that it is illegal to run fog lights and high beams together, however I could be wrong.