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Old 02-06-2011, 08:44 AM
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Confounded in Florida

Have an electrical issue with a 72 Nova....Car is a complete restoration, not Concours but a nice job for driving. Replaced wiring harnass with a Painless package, all went very well until I got to the wiper motor. Now it has become "painful" you would think 4 wires could not be that hard. I can make all functions work directly from the battery, but not through the switch??? I have it working on position #1 but that is here it ends....not smart enough to get the rest of the functions to work through the switch. Switch is good new OER part and probes okay. Any electrical wizards out there are welcomed to respond to this issue...car works perfectly except for this.

Thanks,

Pete

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Old 02-06-2011, 09:22 AM
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you should have power on one of the wires to th motor with the key on. The motor allways has power with the key on. The other 3 go to the switch, they control the path to ground. The 4th wire at the switch will go to ground unless the switch body itself is the ground. Not sure about colors and such, but I will look for a diagram.
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Old 02-06-2011, 09:35 AM
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This is a little hard to read but look at the switch end and the motor end and ignore the middle look at the colors and the terminal numbers , that sjould help you out.
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Old 02-06-2011, 09:40 AM
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If you can't read it just right click and then click zoom, And then just left click the mouse to zoom it in to read. JMO


Cole
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Old 02-06-2011, 12:40 PM
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Here is the schematic.

vicrod
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Old 02-06-2011, 12:54 PM
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Thanks for the schematic

I have some schematics but one needs a degree in electrical engineering to read them. While the colors are different the pathway looks to be the same, I screwed with the swith so long it is now DOA so I ordered another one. I believe that I must go from the fuse block with the key on hot lead to the motor then a wire comes back to the switch for ground routing, does that sound right to you?

Pete
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Old 02-06-2011, 01:04 PM
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Quote:
Originally Posted by pete mullen
I have some schematics but one needs a degree in electrical engineering to read them. While the colors are different the pathway looks to be the same, I screwed with the swith so long it is now DOA so I ordered another one. I believe that I must go from the fuse block with the key on hot lead to the motor then a wire comes back to the switch for ground routing, does that sound right to you?

Pete
Exactly....
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Old 02-06-2011, 01:19 PM
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Thanks

I will follow the lead from the motor back to the switch, pretty much have all the leads identified, think I was trying to force feed the switch directly from the swithched hot wire. Will have a glass of wine and come back to the battle another day. appreciate the input. Pete
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