Horn button wiring - Chevelle Tech
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post #1 of 8 (permalink) Old Dec 20th, 18, 8:44 PM Thread Starter
 
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Horn button wiring

Hey all, planning on installing a horn in my '72 Elco this weekend (original horn/wiring was removed by PO) and have some questions..

The back of the steering wheel button (pic attatched) has one male connector where it looks like one wire may have ran up to it thru the largest hole next the nut at the end of the steering column, is this correct?

If so i'm guessing the button is already grounded thru the mounting screws and I would just need to run 1 control wire from the relay up thru the column and to the connector on the button, and the other to ground, and should work?

Any insight would be much appreciated!

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1972 El Camino SS 350ci TKO-600
1953 Plymouth, chopped and channelled
2006 Crown Vic Police Interceptor
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post #2 of 8 (permalink) Old Dec 20th, 18, 9:44 PM
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Re: Horn button wiring

The wire just needs to be grounded to activate the horn. When you press the horn pad it closes the ground circuit to activate the horn.

You may be missing the turn signal canceling cam, it mounts behind the steering wheel and has a plastic cylinder that extends through the hole at 10 0'clock. From there a bayonet fitting and spring hold a wire that connects to the back of your horn pad.

If you see a wire in the hole, it may be the wire that connects to the contact for the TSCC OR A BROKEN WIRE HELD IN BY THE ORIGINAL bayonet mount. The wire I show is made by Dorman and is universal, you may have to trim the barrel at the opposite end of the bayonet mount to use the one I show.

The turn signal canceling cam is made for tilt and non tilt wheels, so you have to get the one for your application. Doesn't look like you have tilt.

I'll see if I can find some part numbers or suppliers for you.

If you can't see the bayonet mount in the hole of the steering wheel, you'll have to pull the steering wheel. If you do that, post a picture so we can see what's going on in there.
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Last edited by DUTCH MAX HEADWORK; Dec 20th, 18 at 10:10 PM.
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post #3 of 8 (permalink) Old Dec 20th, 18, 10:00 PM
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post #4 of 8 (permalink) Old Dec 20th, 18, 10:08 PM Thread Starter
 
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Re: Horn button wiring

Thanks Dutch! I was hoping i wouldnt have to take the wheel off again, I just put it back on and returned the puller I rented, ah well, back to oreillys! Good to know about the single wire, I was thinking it probably wouldnt be as simple as dropping a wire down that hole and finding it neatly dangling down by the pedals. I will dig down past the wheel and see if I can find what youre referring to and go from there and yes it is a non-tilt column, thanks!

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1972 El Camino SS 350ci TKO-600
1953 Plymouth, chopped and channelled
2006 Crown Vic Police Interceptor
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post #5 of 8 (permalink) Old Dec 20th, 18, 10:17 PM Thread Starter
 
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Re: Horn button wiring

Ah yes, thank you for that video! Im an idiot and its been a long day, of course with a rotating steering wheel its more complicated than just a wire!

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1972 El Camino SS 350ci TKO-600
1953 Plymouth, chopped and channelled
2006 Crown Vic Police Interceptor
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post #6 of 8 (permalink) Old Dec 20th, 18, 10:19 PM
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Al
 
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Re: Horn button wiring

It's east to make a steering wheel puller. Small steel plate with 2 holes in it, 2 long bolts or all thread and a couple of nuts.

The steering lock compressor is another story if you end up needing one. A tough guy can push that in with his fingers and remove the clip. There is a bit of spring tension pushing up at you on that clip.
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post #7 of 8 (permalink) Old Dec 20th, 18, 11:27 PM
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Al
 
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Re: Horn button wiring

Here's a little road map for you. There's a contact on the turn signal switch that the TSCC RIDES AGAINST, If you use a test lead one side to ground and touch the contact the horn should sound. If not you'll have to figure out what's up before you button everything up.

I think you said you can see a wire in the hole, try a small screwdriver, press into the hole and rotate. The connector may have broken off and you just need to get that out and replace the connector and wire.

Here's the part. Hopefully tour turn signal switch is ok. 1969 - 1972 Chevelle / Nova Horn Contact, Non-Tilt, Green.

You also need to source the bayonet connector with wire to the back of the horn switch on center pad.
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Last edited by DUTCH MAX HEADWORK; Dec 20th, 18 at 11:48 PM.
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post #8 of 8 (permalink) Old Dec 27th, 18, 5:29 PM Thread Starter
 
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Re: Horn button wiring

Thanks so much Dutch!! Im all good to go with the horn.

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1972 El Camino SS 350ci TKO-600
1953 Plymouth, chopped and channelled
2006 Crown Vic Police Interceptor
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