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Post by big bob on Jun 2, 2009 19:56:05 GMT -5
hey guys, i know this is simple, and i've read through the posts but.... cant get the stupid horn to work. horn is wired and is getting juice. looks like the PO did it correctly. you can see in the pic below, the brown wire on left side of column going to commutator (sp?) coming from "ground" on the horn. i've metered it.  then, in pic below i have wire on steering donut that jumps to ground. i know its not like the book, but i've ohmed it out. its getting ground.  now, i thought that when wire coming up through column touches steering shaft (see first pic), i get horn. i know this is simple, i've messed with it the last 4 evenings!!!!. i am not, will not, do the little dummy button mounted somewhere. would really appreciate the help. thanks, big bob |
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Post by robstone on Jun 25, 2009 19:34:33 GMT -5
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Post by big bob on Jun 26, 2009 8:48:36 GMT -5
thanks rob,
i have the drawings, the part i'm not getting i guess, is the "connection" from the the wires to the actual steering wheel. thanks, bigbob
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Post by horen2tas on Jun 26, 2009 9:19:24 GMT -5
Bob I'm no expert but as I remember the brown wire thru the column is a ground and the horn has a hot to it all the time. There's also a relay in the circuit. When you hit the horn button it sends the ground to the already hot horn and completes the circuit. If you just hook up 2 leads to the horn directly does it work? If so maybe the relay has a problem. I know on my bus, I've got a break in the brown wire running thru the column and I just had to wire around it until I pull the steering box and can feed a new wire.
Good luck, eventually you'll figure it out, maybe in the mean time you need one of those squeeze horns like Harpo Marx used!
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Post by Wyn on Jun 26, 2009 18:59:09 GMT -5
Big Bob I don’t know if I can be of any help. I don’t have the older stile VW Wheel housing. The Brown wire need to go to the horn button first then the return side connects to the steering wheel shaft for the ground path. I can show you what I have but it is the newer style. The Brown wire connects to the turn signal switch assm to a slip ring contact, the slip ring is on the steering wheel mount, the wire from the slip ring runs to the horn button and the return of the button to the steering wheel mount and then through the steering wheel shaft. I am not sure if the 72/73 bug turn switch will fit your older housing as it has the windshield wiper switch behind it. It might be easier to get a 72/73 bug steering column.   Wyn |
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Post by mrbigh2 on Jun 26, 2009 19:19:30 GMT -5
So far I know, all electromechanical horns should be energized through a relay; is ACVWs and exception?
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doug
Junior Member
Posts: 90
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Post by doug on Jun 26, 2009 21:25:09 GMT -5
possibly the horn button itself is bad I had kinda the same problem. PO had wired the stupid looking button that you would mount on the dash or somewhere in side the steering wheel where the horn should go when I replaced the steering wheel I wired up the horn that came with it and it worked ok then
Doug
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Post by big bob on Jul 22, 2009 11:05:53 GMT -5
well, got my horn fixed. all that work i did in the steering column was for naught.. if you look closely at the pics, the way the wire was attached at the rag joint was wrong.
i already had the wire grounding, so the horn was always going off. anyway, thanks for all the help..
but the horn doesnt blow full blast. please give me more infor about the horn relay. where is it, how does it work. what do i replace with... a generic??
thanks, big bob
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Post by Jeff Troy on Jul 22, 2009 12:03:38 GMT -5
Hi, Bob,
I was looking at your donut photo and thinking that it wasn't right. Guess you got it figured.
I use a Grant steering wheel adapter, steering wheel and horn ring. It's been awhile since I've had it all apart, but the adapter has a terminal for the brown wire, and the ground connection is completed when the button is pressed.
The soft horn, at least on my car, is a power issue. Try it with the engine running and see if it doesn't amp right up.
Warmest regards,
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Post by big bob on Jul 22, 2009 13:25:39 GMT -5
hey, good thought jeff
i'm using decent gauge wire and i sanded all the contacts. extra amperage running may do it. i'm gettin real close to puttin it on the road. thanks again... big bob
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Post by jspbtown on Jul 22, 2009 14:40:26 GMT -5
Big Bob,
One way to wire it with a relay would be:
Run a postive wire from the fuse panel to the 30 tab on a standard relay.
Run a positive lead to the 85 tab (some people use a jumper from the 30 to the 85)
From the 87 tab run a wire to the positive side of the horn
If your horn button is a negative signal, then run that wire to the 86 tab.
Make sure your horn is grounded.
Here is how it works. You are suppling power to be used by the device to the 30 tab. The 85 tab supplies power to the coil that activates on the relay. The 87 tab connects to the 30 tab when the coil is activated. Since your coil has constant positive (through the 85 tab) all it needs is a negative charge to be activated. It will pull that charge through the 86 tab via your horn button.
Clear as mud?
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Post by big bob on Jul 24, 2009 9:04:14 GMT -5
thanks j'town,
little complicated, but i know the relays have the numbers on them. at least it works. thats one more thing out of the way. and i didnt have to settle for the BIG button mounted on the dash!! big bob
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Post by jspbtown on Jul 24, 2009 9:14:42 GMT -5
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