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Old 05-19-2012, 09:55 PM
Nic Nic is offline
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Default Wiper wiring

Hi gang.

Back to working on the wiring again. I'm a bit stuck on the wiring for the wiper. I have 4 wires, 3 bundled together and a black, ground.

Ground is obvious.
Bundled are:
Red is High speed wiper
Green is Low speed
Black is Home.

I have an ON-OFF-ON switch, but Im not sure how wire the "Home" connection. Does that get a constant 12V connection? Thoughts?
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Old 05-20-2012, 05:37 PM
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What kind of wiper, what kind of switch, Nic? All VW? Year? The late VW motors had two brown wires in a bundle of 5.
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Old 05-21-2012, 01:01 AM
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Hi Rick,

Sorry it's a GM column from a 96 Firebird/TransAm. I got the answer I needed though. The switch is bad. Have a new one on order. Next problem is column dis-assembly. Bleh.
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Old 05-21-2012, 08:22 AM
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Ah. I knew you had the GM column, but thought you were running a separate wiper switch. I thought most of those column switches went through a circuit board to get the wiper delay?
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Old 05-21-2012, 12:39 PM
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This thread started out talking about a separate switch but is back to using the stalk (stock?) switch on the column.
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Old 05-22-2012, 02:33 PM
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Here's what's transpired over the last few days. I thought the problem was with the wiper switch in the column because I couldn't get a signal on the gray wire, which I assumed was low by deductive reasoning. Sorry, faulty deductive reasoning. Bought a new switch for $126 (ouch) got it home and tested it. Same results. Ok, not the switch, switch is functioning properly. Then I guess I need a wiper control module. Easy enough to find online for about $30 (saves $100!) But... since I don't have the stock connectors and all that, how was I supposed to wired the darned thing up.

Lots of googling later I found this. Even has the pin numbers on it. Now off to FLAPS to get one. I'll keep ya'll updated.

http://ww2.justanswer.com/uploads/dj...wiper_0000.jpg
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Old 05-22-2012, 05:09 PM
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Definitely two thumbs on that one.. that diagram will most likely work for most GM columns with the wiper stalk. Great find, Nic!
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Old 05-23-2012, 02:59 PM
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Thanks Rick. I haven't picked it up yet but looking at the diagram and at pictures of the part itself it appears that in it's original home and intention, there are 3 metal tabs that stick up from the board, I think these plug into the other half of the board on the firewall, which then lead to the wiper motor connection.

The wiring diagram shows 6 connections, 4 coming from the stalk and 2 of the connections patched together. Then, there are 2 connections coming out of the board(Red and Blue). The only connections I see possible for these 2 wires are those metal tabs. So some creative soldering/altering will be in order I think.
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Old 05-29-2012, 07:07 PM
Nic Nic is offline
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Follow up to all that business above. The Wiper pulse board will not work without a stock GM motor and all the business. The pulse board directly connects to the motor and there are connections on the board that are triggered by the motor moving a larger gear. So the board goes back to the FLAPS. Boo.
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Old 05-30-2012, 08:15 AM
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Oh bummer... I wonder if some of these GM motorhomes have wiper motors similar in size to what we're using? I have no idea where the OE motors are from; I suspect they're probably Bus, but who knows?
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