 Windshield Washer Switch Question |
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| GeorgeKopf |
 Jul 18 2021, 12:39 AM
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#1
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Member  Group: Members Posts: 189 Joined: 9-February 21 From: Princeton, NJ Member No.: 25,186 Region Association: MidAtlantic Region  |
On my wiper switch there are 5 wires. Black, Brown, Green, Black/White, Black/Green
 The black wire (behind the brown) mates to a brown/black wire on the main harness which isn't used. It was capped off and taped into the body of the harness right at the wiper motor. My wiring harness is a 1973. Testing for continuity between the black and the ground I get tone when I pull the wiper switch forward. I also get continuity on the black/white wire which connects to a red/black wire to the wiper motor.  Can I use the black/brown to power an electric washer pump? Thanks. George |
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| 914Sixer |
Jul 18 2021, 06:16 AM
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#2
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914 Guru Group: Members Posts: 9,034 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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What you are describing is the circuit for the intermittent wiper. IF you break the tab off on stalk, the all the way down position is a hot circuit. You would have to move switch back up to neutral to turn off washer pump. You need a 6 wire switch if you want washer and intermittent wipers.
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| GeorgeKopf |
Jul 18 2021, 02:48 PM
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#3
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Member Group: Members Posts: 189 Joined: 9-February 21 From: Princeton, NJ Member No.: 25,186 Region Association: MidAtlantic Region |
Thank you Sixer.
I've been researching and reading and it looks like if I get a 6 pole wiper switch, I will need to run a wire from the switch to the washer pump. Since my wiring harness is out of the car, now would be the time. I'm assuming a few things: 1. I can share the wiper motor's ground wire for the washer pump. 2. I can run the wire directly (without going through the fuse box) 3. I will need an intermittent harness (and relay). Please let me know if I've got that right. Thanks. George |
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| 914Sixer |
Jul 18 2021, 03:31 PM
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#4
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914 Guru Group: Members Posts: 9,034 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Your correct. Check out intermittent wiper installation in the Classic section.
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| SirAndy |
Jul 18 2021, 03:42 PM
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#5
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Resident German Group: Admin Posts: 41,945 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(GeorgeKopf @ Jul 17 2021, 11:39 PM)  Can I use the black/brown to power an electric washer pump? Yes, you can: http://www.914world.com/specs/tech_el_washer.php (IMG:style_emoticons/default/shades.gif) |
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| GeorgeKopf |
Jul 18 2021, 09:58 PM
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#6
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Member Group: Members Posts: 189 Joined: 9-February 21 From: Princeton, NJ Member No.: 25,186 Region Association: MidAtlantic Region |
QUOTE(914Sixer @ Jul 18 2021, 03:31 PM) Your correct. Check out intermittent wiper installation in the Classic section. Thank you Sixer. I added the necessary wire to my harness. I'll figure the rest out when I get to that part of the build. George |
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| GeorgeKopf |
Jul 18 2021, 10:00 PM
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#7
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Member Group: Members Posts: 189 Joined: 9-February 21 From: Princeton, NJ Member No.: 25,186 Region Association: MidAtlantic Region |
QUOTE(SirAndy @ Jul 18 2021, 03:42 PM) QUOTE(GeorgeKopf @ Jul 17 2021, 11:39 PM) Can I use the black/brown to power an electric washer pump? Yes, you can: http://www.914world.com/specs/tech_el_washer.php (IMG:style_emoticons/default/shades.gif) Thank you Sir Andy. I read that post and will definitely be referring back to it when the time comes. George |
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