Date:         Sun, 8 Jul 2007 11:14:41 -0400
Reply-To:     Mark Brush <mbrush@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mark Brush <mbrush@GMAIL.COM>
Subject:      rear wiper won't work
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I posted this problem back in January, but I'm still confounded by it.  My
rear wiper motor doesn't work.  When I test it I'm supposed to get 12 volts
for a wipe, then 0 volts for a few seconds, then 12 volts again for another
wipe.  Correct?  Right now I get a steady 5 volts before I hit the switch.
When I hit the switch - it drops to 0 then up to 5 volts again for a few
seconds, then down to 0 with a click, back up to 5 volts for a few
seconds... repeat.  I switch if off - and I'm back to a steady 5 volts.  I
replaced the wiper relay and get the same results.  I get this voltage
reading at the connection near the fuse panel (after is passes through the
relay and before it makes the long trip back to the wiper motor).  There's a
steady 12v going into the relay at all times with the ignition on - this
doesn't seem right.  The grounds appear to be good.

Any ideas of where to look next?

Also - what's the best way to bench test a wiper motor?  I hooked it up
directly to the battery and it didn't go - bad motor?

Mark B.
1990 Westy