BlackTA519

I'm having light issues with my 2000 TA. When i turn on my low beams, the driver side light is dim, and the high beam lights are also dim on both the driver and passenger side. Normally, I think the high beam lights aren't supposed to be on when the low beams are on. The passenger side low beam light works fine. Then, when i turn the high beams on, the high beam on the driver side does not come on, but it works fine on the passenger side. Any ideas what could be wrong? thanks