>  So if the last guy turned it off at, say, 32,000 miles the next time
it
>could come on would be 62,000 miles?
>   I didn't know that.

Yep, absolutely correct.

 I had figured that there was a mechanical gizmo in
>there that tripped a relay of some kind and the reset button reset the
>relay, not the "gizmo" which mindlessly kept turning toward the next
30k
>mile mark.
>    Somethihg to keep in mind. I think I drove some 1500 miles with the
>light on before I found the %#!@#! switch.
>
Apparently the mileage counter doesn't start counting again until the
light is reset.  When my EGR light came on (same thing, but found on the
older air-cooled vans) it came on at some weird mileage, not even close
to being a round number.  There probably is some kind of mechanical
switch inside that is tripped at the specified mileage, thus turning on
the light and stalling the counter.  When you reset the light, you also
reset this mechanical switch and the light goes out and the counter can
start counting again.  This is pure speculation on my part, having never
taken one of these boxes apart.
But since my light came on at a milege that was not a multiple of
30,000, I have to assume it works roughly that way.

Sean Bartnik
Fairfax, Virginia
============================
'81 Vanagon L Westfalia
'74 Karmann Ghia convertible
http://www.type2.com/bartnik/tech.htm

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