The OXY and ALT lights are wired in such a way that they both come on
for the "Test" when you turn on the ignition.  Because of the way
they're wired, they both come on when there are alternator problems ...
either with the alternator itself or from the alternator belt slipping.
  I know, not terribly intuitive, but that's the way it is.

When the OXY light comes on, due to reaching the magic number of miles
since it was last reset, it comes on by itself and is on solid until
reset.  It doesn't flicker like it does when it is part of a bad
alternator output indication.

Mike

AAG - Larry Word wrote:
> Occasionally, on my daily driver 1985 Vanagon, I get these two lights....
>
> They flicker so lightly you think its only your imagination but then they flicker again.
>
> My alternator appears to be OK, although I've not had that checked yet - but I'm still cranking good and its cold here in Ga.
>
> So....what does this mean?  Does the Oxy + Batt. lights "always" work/light together?  If its the OXY, how do you re-set this....my van has lots of miles and I've never re-set the OXY "box"....
>
> Educate me please ....
>
> Larry
> Ga.
>