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Old 03-18-2018, 11:42 AM   #115
tutone
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Join Date: Mar 2016
Location: hickory, ky
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Re: Testing Windshield Wiper Motors

Quote:
Originally Posted by Mav View Post
Am getting ready to pull it out again and bench test, 1st w/out switch, then with, even though it tests good I want to rule it out. Then it pretty much has to be something in the wiring like you said, (even though it tests ok). If I have to will just run new wiring independent of the existing wires. Thanks , be back later, Mav
Mav. before you do pull it, try this. Lockdoc posted it way back in this thread. You may be losing power, not ground. Get your wiring on the switch and and hook everything up as it should be. THEN clean the heck out of your fuse holder with some 180 grit. If the wiper comes on and parks, it indicates a good ground and no power. It was what was the leading cause of my problem a couple of weeks ago. Remember the motor is supposed to have 12v on it from the ignition switch when you hit the key. If you hit the switch and complete the circuit, it will search ground immediately and if it finds it in the fuse holder, your wipers will park on the 1st revolution.
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