I have a 1978 450 SL. I had originally thought I just had a buned out headlight(Low Beam) on the passenger side. Bu when I was checking it out, I noticed that the low beam worked when I had it set to high beam. I have a 4 headlight syetem(plus the 2 driving lights).
Do I have a bad low beam, or is there an elictrical problem?

Thanks,

Don Solomon
1978 450 SL
Durango, CO