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> No power to wipers 1973-SOLVED
HalfMoon
post Jul 29 2013, 06:19 PM
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Hi all,
I just purchased a v-8 converted 914 and inherited a bunch of electrical problems
So much for "turn key" and "daily driver" descriptions....
It will be some time before I can get this vehicle to pass our state inspections...
The problems (electrical) so far,

No power to right side headlight-SOLVED
No horn (I don't even see a wire coming up the steering colum)
Wipers not working
Gas gauge not working
Hazard lamps not working
Front turn signals not working (Not even installed)
Back up lights not working

My first post of electrical gremlins (the right side no power to headlights) was solved rather quickly and so I thought I'd post my attacking the next problem, there's no power to any of the 5 wires to the wiper motor when the key is on and the wiper motor switch is activated on the steering colum. I don't see that this is fuse protected but I do see it on the circuit board (56, 91-optional intermittent).
I'm guessing that it's not fuse protected.
What test can we come up with that will tell us if the wiper is operational and beyond that (if it is) why is the switch not controlling it? Probably the relayor a ground fault I would guess, but first things first, how to test the wiper motor?
Thoughts, ideas?

Additional information-In another post I found that the relay for the wiper is supposed to be above the fuse panel and accessable by removing the two screws that hold the panel in. I did this but can anyone identify the relays and a test for same? Here's a picture-
Also-the PO converted this to a v-8 and in a previous conversation with him about the circuit board, he alluded to the board no longer being useable during the converstion. I'm not sure if I inturperted what was being said....but I can't find a circuit board anywhere. Not being familar with 914's and having to wait for a manul from Amazon, wait for it (the dumb question), where would the circuit board be located?
Assitional information-After examining an online diagram of the "relay" board, it appears as if the PO was right and (given that he removed all the heating stuff as it was no longer useable in a v-8 conversion) the relay board was no longer neccessary. That said, it appears as if the wiper motor is fused (and relayed-as it looks like I have the intermittent switch). Still hoping someone can identify the relays from my picture and mebbe have a test for that relay, but...and this is odd, one of the diagrams I've viewed (and I've posted it) indicates one of the five wires coming off the wiper (56) as going to a fuse block (60) with slots 8, 9, 10, 11, 12. That's confusing to me as I'm only aware of the 12 block fuse panel under the steering colum. Is there another one somewhere?
Lol, can't wait for Amazon to deliver my 914 book :-(
More info-learning curve. After much study I do not believe my wiper system had the intermittent switch and as such I shouldn't/wouldn't expect to see a relay for it. The diagrams indicate a relay is used only with the optional intermittent. Soooo, it appears as if the wiper motor is merely to a switch and it also appears as if it gets it's power from fuse panel position eight. I've tested the fuse and it's good, yet when I have the key on and the wiper switch on, I see no power at position eight on the fuse panel (either side). That's making me think the switch is bad, as I heard these fuse circuits are fused at the end of the circuit. Soooo, any cool ideas for testing the switch? Still might be of value to have a test for the wiper motor itself too. One of em is bad unless I've msitaken where the wiper motor gets it's power from (position eight).


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bulitt
post Jul 31 2013, 01:34 PM
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Is the Brown ground connected to the wiper body? Cant see from pic.

Gonna throw up a bunch of pics for you while Jeff is walking you through things.

(IMG:http://www.914world.com/bbs2/uploads/post-1348-1344999768_thumb.jpg)


Wiper switch thread Wiper

(IMG:http://www.914world.com/bbs2/uploads/post-104-1283378183_thumb.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i16.photobucket.com-9478-1274060481.3.jpg)
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HalfMoon
post Jul 31 2013, 02:25 PM
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Attached ImageLol, I'm color blind but I think you mean this wire?
Yes it's grounded to the body of the wiper motor :-)
Thanks for the images. The relay board images while cool for my files I don't need as the relay/circuit and all the associated relay's for that board have been ommittted as this is a V-8 conversion that evidently didn't require any of those circuits/relays.
The image of the wiper motor and relay's was VERY interesting though! Can I assume that two relays are used when the intermittent option is in use but only one relay is used for the standard two position switch? If so, where is that relay located? Back of the fuse box perchance? Which one...lol
Thanks :-)
D
Addedum, opps. My mistake. Only one relay is in the picture. IS it used without the intermittent option?
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barefoot
post Jul 31 2013, 03:15 PM
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QUOTE(HalfMoon @ Jul 31 2013, 04:25 PM) *

Attached ImageLol, I'm color blind but I think you mean this wire?
Yes it's grounded to the body of the wiper motor :-)
Thanks for the images. The relay board images while cool for my files I don't need as the relay/circuit and all the associated relay's for that board have been ommittted as this is a V-8 conversion that evidently didn't require any of those circuits/relays.
The image of the wiper motor and relay's was VERY interesting though! Can I assume that two relays are used when the intermittent option is in use but only one relay is used for the standard two position switch? If so, where is that relay located? Back of the fuse box perchance? Which one...lol
Thanks :-)
D
Addedum, opps. My mistake. Only one relay is in the picture. IS it used without the intermittent option?

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HalfMoon
post Jul 31 2013, 03:20 PM
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What year is that wiper motor ? My 76 does not have those two extra wires.
Are they for the intermittent function ???

It's a 73 motor as far as I know and I'm pretty sure this car does NOT have intermittent. Jeff says that the wiring changed from year to year so I'm not suprised your 76 is different.
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Posts in this topic
HalfMoon   No power to wipers 1973-SOLVED   Jul 29 2013, 06:19 PM
HalfMoon   Jeez. Will I be left to my own genuis thinking on ...   Jul 30 2013, 04:08 PM
Jeff Bowlsby   Patience grasshopper, lets start off with which ye...   Jul 30 2013, 04:43 PM
HalfMoon   [quote name='Jeff Bowlsby' post='1902314' date='Ju...   Jul 30 2013, 06:14 PM
Jeff Bowlsby   Whats your real name moon-man? I like knowing who...   Jul 30 2013, 06:33 PM
HalfMoon   Whats your real name moon-man? I like knowing wh...   Jul 30 2013, 06:43 PM
Jeff Bowlsby   Thats not an intermittent relay base, it looks l...   Jul 31 2013, 12:55 PM
barefoot   That 4 pin female thingy is for the fuel tank leve...   Jul 31 2013, 12:43 PM
The Cabinetmaker   That 4 pin female thingy is for the fuel tank lev...   Jul 31 2013, 12:49 PM
The Cabinetmaker   Ha. guess I better look a little closer and engaug...   Jul 31 2013, 12:58 PM
bulitt   Is the Brown ground connected to the wiper body? C...   Jul 31 2013, 01:34 PM
HalfMoon   Lol, I'm color blind but I think you mean this...   Jul 31 2013, 02:25 PM
barefoot   Lol, I'm color blind but I think you mean thi...   Jul 31 2013, 03:15 PM
HalfMoon   What year is that wiper motor ? My 76 does not hav...   Jul 31 2013, 03:20 PM
HalfMoon   Very cool wiper switch thread too :-)   Jul 31 2013, 02:27 PM
HalfMoon   Interesting. Today I found what I think is the wip...   Aug 1 2013, 05:31 PM
bulitt   The brown wire on the right of the photo is attac...   Jul 31 2013, 03:22 PM
HalfMoon   The brown wire on the right of the photo is atta...   Jul 31 2013, 06:22 PM
ripper911   FWIW I tracked my non-functional wipers down to a...   Aug 1 2013, 07:30 AM
HalfMoon   FWIW I tracked my non-functional wipers down to ...   Aug 1 2013, 07:59 AM
ripper911   FWIW I tracked my non-functional wipers down to...   Aug 1 2013, 08:03 AM
mepstein   [quote name='HalfMoon' post='1902951' date='Aug 1...   Aug 1 2013, 08:42 AM
ripper911   I have the tech tips book but don't recall ...   Aug 1 2013, 09:02 AM
The Cabinetmaker   there are about 700,000 tech tips in this forum.   Aug 1 2013, 08:33 AM
Jeff Bowlsby   That's the headlight dimmer relay. Have you f...   Aug 1 2013, 06:22 PM
HalfMoon   That's the headlight dimmer relay. Have you ...   Aug 1 2013, 06:28 PM
HalfMoon   That's the headlight dimmer relay. Have you...   Aug 1 2013, 08:12 PM
HalfMoon   And that's because (on non-intermittent models...   Aug 2 2013, 09:58 PM
Jeff Bowlsby   That's the headlight dimmer relay. Have you f...   Aug 1 2013, 06:22 PM
bulitt   Jwest is a forum vendor and offers the fuse panel....   Aug 3 2013, 05:19 AM
Jeff Bowlsby   Is everything else on the fusepanl hot with the ig...   Aug 3 2013, 06:39 AM
HalfMoon   Is everything else on the fusepanl hot with the i...   Aug 3 2013, 02:42 PM
Jeff Bowlsby   Just out to the garage to test the fuse block an...   Aug 3 2013, 03:04 PM
HalfMoon   Just out to the garage to test the fuse block a...   Aug 3 2013, 03:27 PM
bulitt   1973 fuse assignments 75- http://www.914world.com...   Aug 3 2013, 03:01 PM
HalfMoon   Addedum (easier to read) Key off- ...   Aug 3 2013, 04:07 PM
HalfMoon   I'm happy to report the problem is solved. On ...   Aug 10 2013, 06:32 PM
76-914   Nice work. I would have missed that and burned my ...   Aug 11 2013, 08:21 AM
theleschyouknow   reviving an old(ish) thread 73 2.0 I have the same...   Apr 13 2015, 07:31 PM
Dave_Darling   The horn relay is on top of the fuse panel. The p...   Apr 13 2015, 08:18 PM
theleschyouknow   The horn relay is on top of the fuse panel. The ...   Apr 14 2015, 08:04 AM
theleschyouknow   The horn relay is on top of the fuse panel. The...   Apr 14 2015, 05:06 PM
theleschyouknow   [quote name='theleschyouknow' post='2174012' date...   Apr 14 2015, 06:32 PM
396   Off topic, what ever become of your " master...   Apr 13 2015, 09:27 PM
Tom   HalfMoon, That relay is J 13 and is called th...   Apr 14 2015, 12:21 PM
Dave_Darling   Yes, those. The whole thing will hang down by the...   Apr 14 2015, 09:47 PM


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