Headlights or high beams dont work

First, check fuses and relays. There are relays related to the fog lamps which are related to high beams, for example. I don't have access to an owners manual for the fuse boxes, but I'd check yours out. Beyond that, if you're not getting power to the sockets, you'll have to get a wiring diagram and trace back from the sockets to find out where the power loss occurs.