I'm with you. The problem is as clear as day, the dash ground wire has a
high resistance between itself and true ground. As I have said here many
times, all most everything in the dash connects to a single ground wire
at the star/crown ground ring. Find that one wire, clean the end or
crimp on a new .250 female spade connector. That is all that is needed.
It has nothing to do with the headlight switch. Adding air to the tires
is easy as well but won't help the dash light problem either.

Mark

Jim Felder wrote:

> Don't be like the guy who lost his watch halfway down the street but
> was looking for it at the corner because the light was better...
>
> A cheap offset screwsrdriver will get those crowns out. A dremel tool
> with a flexible shaft might clean up the blades, but wouldn't do much
> for the crown-to-dash connection.
>
> Of course, if you just want to have a spare switch, that's another
> matter. I have two vanagons and it takes just a few minutes to swap
> switches to test them.
>
> Jim