'79 Horn Problem

pon · Posted: Mon Dec 10, 2007 10:57 am Post subject: '79 Horn Problem

The horn on my '79 bus doesn't function. The horn itself is OK, there is power to the horn, the horn button works fine and there is a ground connection when the horn button is depressed. The 12 v is not getting to the connection on the horn. The schematics indicate the wire from the horn going to the horn button passes through a connector behind the instrument panel.
My questions are these:
- Does the black wire coming up the center of the steering column to the horn button come all the way up the column or is it in the bundle of wires coming into the steering column just below the ignition switch?
- Regardless of where it comes from, where specifically is the connection that brings the wire into the inside of the bus?

Many thanks..... Wally Oakland,CA

Randy in Maine · Posted: Mon Dec 10, 2007 11:55 am Post subject:

Has your steering wheel been off lately? If so, mount it 180º from where it is now and see what happens.

pon · Posted: Mon Dec 10, 2007 2:26 pm Post subject:

The horn didn't work when I bought it so I have no idea if it has been removed recently. I don't understand how I'll pick up the 12v by rotating it. Can you enlighten me please?

Thanks.... Wally

renobdarb · Posted: Mon Dec 10, 2007 3:41 pm Post subject:

Have you taken the horn off and/or actually tested it out of the system?
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1978 Campmobile, 2000cc w/hydro lifters, dual Weber 44 IDF carbs (50 idle jets, 115 main jets), SVDA distributor w/Compufire.

pb24ss · Posted: Mon Dec 10, 2007 4:14 pm Post subject:

the horn itself is unlikely to be bad. check the ground. clean the spade where the horn grounds. make sure the ring connector is connected the plate at the bottom of the steering column. clean all the ground points.

renobdarb · Posted: Mon Dec 10, 2007 5:45 pm Post subject:

pon · Posted: Mon Dec 10, 2007 6:09 pm Post subject:

The horn works find when I ground out the ground side of the horn. The continuity from the horn button to ground is fine. The closure of the horn button(switch) on the steering wheel is OK. I'm missing power to the shoe connector on the horn button. I just need to know how/where the black wire connected to the horn button rim via shoe connector is routed. The schematic indicates somewhere behind the instrument panel.
Any ideas where?

renobdarb · Posted: Tue Dec 11, 2007 8:15 am Post subject:

germansupplyscott · Posted: Tue Dec 11, 2007 8:44 am Post subject:

pon · Posted: Tue Jan 01, 2008 1:30 pm Post subject: '79 Horn Problem

Scott.... Thanks for the previous info on my horn problem. I've checked all the ground connections on the steering box and column and they are good. My problem is I'm not getting the 12 volts at the horn button itself. I have power to the horn - but not at the button. If I ground out the back side of the horn it works fine. I've followed the wires, as much as I can, from the horn trying to find the power connection to the horn button but to no avail. The grounds are good, the power to the horn is good - I'm just missing the power to the steering column button. Any idea where that connection is made??

Thanks.... Wally

luckybus · Samba Member Joined: August 27, 2006 Posts: 2

remove the base plate at the bottom of the steering column inside the bus.(two screws) there is a wire going from the bottom where the steering bolts on to the top,right under that plate. wire is about 4inches long. make sure that is connected. then make sure that copper tab under the horn button is making contact to the bottom of the steering wheel.(that is what was wrong with mine 78 westy)hope this helps
Dominic


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