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> Wacky Wipers, Wipers operating opposite / won't stay on
mtc911
post May 15 2019, 07:24 PM
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Trying to figure out a weird one.

1 _ wiper Switch in down position (should be off) Wipers operate in intermittent mode
2 - wiper switch up in any of the other positions (assume should be low and high) they do nothing

So the relay is engaging intermittent when they should be "Off" and when they should be going at speed in the upper positions i get nothing.

Could it be a bad switch on the steering column? Or could it potentially be an incorrect switch? I know the intermittent relay was an option at one point.

Any help is appreciated.

Thanks
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Chi-town
post May 16 2019, 05:25 AM
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Did this happen all of a sudden? Has the wiper motor been out of the car lately?

If this happened all of a sudden I would do a visual check of the wires at the motor for a loose connection or rodent damage.

Then I would pull and look at the switch for issues (burnt contacts, melted plastic)
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914Sixer
post May 16 2019, 06:07 AM
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All the way down is intermittent wipers. Next click up is off. 3rd click up is low speed. Last click is high speed. Let us know what year the car is. 72-74 HAS to have a tight ground spring (z shaped copper strap) in the right hand corner, of the steering column.
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mtc911
post May 16 2019, 09:08 AM
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I just bought the car a few months ago so it has been that way since i got it. The PO did some welding up front and removed all of the fresh air blower stuff so i dont know if the motor has been out. I did find a broken wire headed to the relay which i repaired - rest of the wires look good

I am just trying to fix it before i replace the fresh air box, etc...for obvious reasons regarding access...

I get voltage on the blue / black wire at the motor when the wipers fire on intermittent

what was odd was i didnt get any voltage when testing the red wire(s) on the motor...seems counterintuitive - i would think i wold see voltage there

I have the switch out of the car now so will look at it for what you mentioned

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mtc911
post May 16 2019, 09:10 AM
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QUOTE(914Sixer @ May 16 2019, 06:07 AM) *

All the way down is intermittent wipers. Next click up is off. 3rd click up is low speed. Last click is high speed. Let us know what year the car is. 72-74 HAS to have a tight ground spring (z shaped copper strap) in the right hand corner, of the steering column.



It is a 1975 914
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dr914@autoatlanta.com
post May 16 2019, 09:19 AM
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if the intermittent works, probably the switch or wiring is hooked up incorrectly
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914Sixer
post May 16 2019, 11:14 AM
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75 takes a different type of wiper switch. Has smaller base.
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SirAndy
post May 16 2019, 12:58 PM
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Intermittent relay location is on the drivers side front cowl support. Make sure the harness for the relay socket is plugged in correctly at the wiper motor.

(IMG:http://www.914world.com/specs/el_washer/el_washer_05.jpg)

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mtc911
post May 16 2019, 01:35 PM
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QUOTE(914Sixer @ May 16 2019, 11:14 AM) *

75 takes a different type of wiper switch. Has smaller base.


Yeah, I saw that...tryign to figure out if the one on there is the correct one or not....Here is a pic of the bottom with a part number...crazy thing is that part number shows up as ignition switch in most places i look...not a wiper switch...so not sure if it's the correct switch or not...

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914 613 306 18
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914Sixer
post May 16 2019, 03:34 PM
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NLA switch for a long time. 75 VW Rabbit will interchange. They are rare also. I backdated my column to a 74 and used the 75 ignition switch. Easy swap.
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76-914
post May 16 2019, 06:16 PM
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QUOTE(914Sixer @ May 16 2019, 02:34 PM) *

NLA switch for a long time. 75 VW Rabbit will interchange. They are rare also. I backdated my column to a 74 and used the 75 ignition switch. Easy swap.

That would be worthy of a write up Mark @914Sixer (IMG:style_emoticons/default/beerchug.gif)
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Chi-town
post May 16 2019, 06:23 PM
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If the fresh air system was pulled more than likely the wiper motor was disconnected when/ if they pulled the wiring back to get it out of the way.

Check to make sure the wires are in the right place
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mtc911
post May 16 2019, 08:32 PM
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QUOTE(mtc911 @ May 15 2019, 07:24 PM) *

Trying to figure out a weird one.

1 _ wiper Switch in down position (should be off) Wipers operate in intermittent mode
2 - wiper switch up in any of the other positions (assume should be low and high) they do nothing

So the relay is engaging intermittent when they should be "Off" and when they should be going at speed in the upper positions i get nothing.

Could it be a bad switch on the steering column? Or could it potentially be an incorrect switch? I know the intermittent relay was an option at one point.

Any help is appreciated.

Thanks


Appreciate all the help. Was able to dig into it again tonight and found a loose 12V wire in fuse box causing the motor to not get power. - so several people were right (IMG:style_emoticons/default/smile.gif) Im 90% of the way there - now the wipers will run in all speeds but for some reason they are still running on intermittent in the lower (2) positions on the switch - found a leaky gas tank while i was at it so the odyssey continues - I'm guessing at this point the switch is bad causing it to stay in intermittent mode even when in the "off Position" Anyone know if there is a way to just kill the intermittent part of the equation - i never drive the car in the rain - just want them functional in case i get caught in rain unexpectedly...On to reassembling the fresh air system...
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Chi-town
post May 16 2019, 10:02 PM
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https://www.design911.co.uk/mobile/#part;id=137974

New fuel tank cheaper delivered than any I've found in the US without shipping.
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SirAndy
post May 17 2019, 11:16 AM
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QUOTE(mtc911 @ May 16 2019, 07:32 PM) *
Anyone know if there is a way to just kill the intermittent part of the equation

Just remove the intermittent relay from the socket and put it in your glove compartment for that day you get caught in the rain ...
(IMG:style_emoticons/default/shades.gif)
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mtc911
post May 17 2019, 09:14 PM
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Finally got it all sorted - never got to the final reason the intermittent would stay on when in off position. I don’t care about intermittent so....

I capped off the green and blue/black coming from relay.
Then took the green from wire harness to green on the motor

I now have
OFF in lower positions
And low and high in the upper.

Didn’t have to buy anything (IMG:style_emoticons/default/smile.gif)



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