I have a similar problem:  my headlights (high and low) stopped coming on. The dash lights comeon and the park lights come on.  The passing high beam flasher works so I have high beams if I want to hold the dimmer switch up while I drive. The fuses are still good.  I replaced the dash hadlight switch with another and still have the same situation.
Jaymac, 87 vanagon GL

A & C Grobey wrote:

 My headlights have been giving me problems lately where they turn off while driving on a bumpy road.  They also sometimes do not turn on without jiggling the switch a little.  Now they won't come on at all.  I think it is the switch itself that has gone bad.Has anyone ever had their headlight switch go bad to the point where the headlights won't go on but the parking lights will?  I'm 99% sure this is what it is although I haven't verified it with a volt meter yet.  It just seemed like a strange thing to fail so I wanted to poll the list to see if I am not alone.Alan Grobey
'91 Carat
Sherwood, OR