I am in the process of checking over my Xj before declaring it road worthy and was working in the headlights. I used an HID conversion Kirin the fall and it worked fine till the winter. Then the Xj took a dump in my wallet but that's another story. So I was testing them and they do t work right. When I turn them on only the drivers side works, when I switch to hi beams only the passenger side works. So I stuck the sealed beams back in and now only passenger side works for hi and lo beam. I'm going to try and track it with a multi meter today but has any one seen this problem before? All my connections are clean and I put dielectric grease in them.

 

Check all of your wires. Don't forget to make sure that your grounds are nice and clean.
Good Luck.