Seems to me that my 84 had the same blinky light syndrome several years
ago. I scoured my repair log and could not find the info, but I believe
I had swapped instrument clusters with a known working one. It worked,
so I knew it was something in the instrument circuit. I did replace the
light/gauge, but I also remember putting a new voltage regulator in
there, too (the one in the instrument cluster, not the one on the
alternator). Sorry if that's too vague...

Keith O.
90 Westy Syncro "VikingWagen"
Past VeeDubs in the family
1984 Westy "Brownie"
1980 PU diesel
1978 Rabbit diesel
1979 Rabbit gasser
1963? 23 window Splitty
1965 Bus
1969 Bus
1959 Bug