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Old 01-22-2023, 05:14 PM   #175
LockDoc
The Older Generation


 
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Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,332
Re: Testing Windshield Wiper Motors

Quote:
Originally Posted by 6600DURAMAX View Post
What gives..... trying to bench test this wiper motor - dug through the old harness and found all the connectors ( added the white wire to act as a ground), even found the switch - I tried to land the yellow wire to the positive battery post and the white wire to the ground....

What am I missing

I can't really see the wiring connections in your picture but I think your problem is that you don't have the wiper switch case grounded. It has to be grounded to the battery negative along with the white wire. Watch your loose wiring when the motor starts so it doesn't get wound up in the rotating arm....

LockDoc
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