Hello PagodaMen,
This may ( or may NOT be ) common on our 40 year old cars.
My windshield wiper motor went INOP and blows a fuse every time it is operated.
Touching jumper leads from my battery to post 4 and the ground post on the plug interface got no movement out of the pump shaft. Seems like my motor is fried.
On eBay I found a good one but from a later car.
While bench testing it , and doing plug-in checks, I found some weirdness going on.
Crosschecking several wiring diagrams revealed that these later ones eliminated
the wiper motor relay.
Problem now is: some how this thing is getting 12V - - - although my relay is not activated.
The replacement seems to work fine but the wiper switch will not shut it off. I am trying several approaches to wire in a temporary "ON-OFF" switch, until I can get the armature rewound on the old one.
Anyone out there have any bright ideas on this pesky little problem?
I can just see my self pulling over whenever the rain starts - - - - in order to plug it in so I can get home!
Comments Please !! Larry in CA