Shark Racer

Tilt/telescopic 78.

I see a button between some grooves that pushes in and pops back out. Roughly looks like where the horn should be. When I push it in, nothing happens. What gives?

-Steve

terryrudy

If yours is like my T/T, there is a little hole within the center of the column (a little spring thing pops out of it and thats where the horn is. Check out Jim Shea's documents on corvettefaq. Plenty of good detailed drawings.

Now that i think about it, maybe its a little metal bit that points into that hole. Been awhile. Just check the pics: http://www.corvettefaq.com/redir.asp?site=610 :)
good luck!
-terry


[Modified by terryrudy, 1:50 PM 1/9/2003]

NHvette

The spring and eyelet that stick out make up a rotary contact.
This contacts the horn button assembly, via a donut shaped metal ring.
I believe that connecting this spring loaded terminal to ground (metal case of column)
will sound the horn.

Have extra fuses on hand :lol: :lol: I'm saying this all from memory.

:seeya

Jim Shea

If your battery is connected, and you ground that little plunger to the steering shaft; (i.e. bridge with something like an insulated screwdriver) your horn should blow. For the most part, it is a good idea to disconnect your battery whenever you are working on the steering column.

Shark Racer

Thanks Jim. Where exactly is the horn located? Mine has been DOA for years.

I'll go outside and take some pics of where I'm at.

-Steve

Shark Racer

I ran speaker wire from the little metal button to other metal areas, but it did not seem to do much. Wouldn't the horn sound at least a little?

-Steve

Big Fish

If the horn has problems with the voice mechanism it won't make even a peep. Take a resistance reading from the horn terminal to ground (at the horn, no wire connected). If you don't get a reading the horn has problems. It sounds funny, but you might give it a little whack or 2 :smash: and see if you get a reading then. There is a adjusting screw on the horn, try a 1/4 turn in either direction to see if that makes a difference. If the horn checks out good, then you will need to take voltage readings at the horn wire to see if it is getting power to ground.

Jim Shea

There are three basic areas where you can have horn problems. 1) the horns themselves; 2) the horn relay; 3) the horn circuit in the column.

1) The horns have a dark green 14 gage wire coming to them from the horn relay. Disconnect this wire from the horns and connect a 12v source to the horns; they should operate. If they don't they need to be replaced or repaired.

2) Follow the dark green wire to the horn relay under the hood. The dark green wire should be going to a terminal marked #3 on the relay. Remove the relay from its mounting and connect a jumper from terminal #2 to ground. (If the relay terminals are of the slip-on type, slide a prod into the wiring harness connector to make contact for the ground.)

If the horns operate, check the #2 terminal wire and horn circuit through the column for defects.

If the horns do not operate, leave the #2 terminal connected to ground, and connect a voltmeter from the #3 terminal to ground. If a reading is obtained, check the horn wiring and horns for defects. If no reading is obtained, replace the horn relay.

3). The last two wires in the column wiring connector are a black and a pink wire. The third wire will be black. There should be continuity from the third wire up to the spring loaded plunger in the column head. When you press on the steering wheel horn button. There should be continuity from the third black wire all the way to the end of the steering shaft.

tippi58

Great post Jim, couldnt have put it better myself. :cheers:

After spending some time with my steering wheel contacts I found it was a poor connection at the horn !! :jester


:cool: :cool: :cool: