1991 Caprice - Horn - Chevy Impala SS Forum
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post #1 of 12 (permalink) Old 03-07-2015, 11:57 AM Thread Starter
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1991 Caprice - Horn

Went to take the Caprice to get it inspected again ( state inspection ) . Horn does not work . I tested the fuse & it is OK . Think I found the convenience center ( under the dash on the left hand side ) where I think the horn relay is located .

Pretty sure the 2 horns are under the hood , some where , but have not located then .

I could use a little info here , please ?

Thanks ,
God bless
Wyr
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post #2 of 12 (permalink) Old 03-07-2015, 04:37 PM
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Horns are just inside the front left fender. Next to the charcoal canister.
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post #3 of 12 (permalink) Old 03-07-2015, 09:40 PM Thread Starter
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Thank you , :-)
God bless
Wyr
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post #4 of 12 (permalink) Old 03-07-2015, 10:43 PM
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It may be your horn buttons. You have to pull the airbag to access them.

You can test the horns by shorting the green wire to the battery.

The black relays are all the same, and can be interchanged to check them.

1991 OCC 461 (.030 over 454) BBC, 3.23 posi, flash to pass, drop spindles & springs, Impala rims, Hydroboost, Recaros, MOMO/wood SW w/QR, custom wood shift knob, Pioneer DEH P77DH
1992 OCC now with 5.7 tbi, DEH P77DH
For a parts list, check https://www.impalassforum.com/vBulle...ion-parts.html
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post #5 of 12 (permalink) Old 03-08-2015, 06:49 AM Thread Starter
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I may not have mentioned , but I also have an inflation restraint warning lite that is on .

And the horn does not work .

There are electrical circuits that go to the horn and the air bag , both on the steering wheel .

Almost certain there is a part / device in the steering column that allows those two circuits to maintain conductivity between the stationary part of the steering column and the steering wheel . As the steering wheel rotates about .

That is a point of commonality between the two issues . So , yes , I will probably remove the air bag & the horn switches , as part of that investigation . And check the horn switches as a part of that processes .

If I disconnect the battery , how long should I wait , before messing with the air bag ? For it to be disarmed ?

God bless
Wyr
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post #6 of 12 (permalink) Old 03-08-2015, 06:53 AM Thread Starter
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I replaced the horn fuse & relay . No joy . :-(

God bless
Wyr
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post #7 of 12 (permalink) Old 03-08-2015, 07:30 AM
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The airbag uses a clockspring for electrical connection, and the horn uses a slip ring. The wiring for the airbag is yellow. Check the horn buttons with a VOM for continuity. There is a, or are some threads on repairing the horn buttons using different methods. Take your pick.

You are supposed to wait a minute, but I have never unhooked the battery, so I do not know. At this point, I have aftermarket wheels in my cars, and no longer have airbags.

1991 OCC 461 (.030 over 454) BBC, 3.23 posi, flash to pass, drop spindles & springs, Impala rims, Hydroboost, Recaros, MOMO/wood SW w/QR, custom wood shift knob, Pioneer DEH P77DH
1992 OCC now with 5.7 tbi, DEH P77DH
For a parts list, check https://www.impalassforum.com/vBulle...ion-parts.html
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post #8 of 12 (permalink) Old 03-08-2015, 07:56 AM Thread Starter
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Hmmmmmm ..........

I would have guessed both used slip rings ?

Do you have a suggestion on the wording to use in a search for threads on repairing horn switches ?

Thanks , :-)
Wyr
God bless
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post #9 of 12 (permalink) Old 03-08-2015, 08:03 AM
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You might try repair horn, but it is a trial and error issue. Good luck.

1991 OCC 461 (.030 over 454) BBC, 3.23 posi, flash to pass, drop spindles & springs, Impala rims, Hydroboost, Recaros, MOMO/wood SW w/QR, custom wood shift knob, Pioneer DEH P77DH
1992 OCC now with 5.7 tbi, DEH P77DH
For a parts list, check https://www.impalassforum.com/vBulle...ion-parts.html
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post #10 of 12 (permalink) Old 03-08-2015, 12:42 PM Thread Starter
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In the process of taking the steering wheel apart / off . Stopped to grab some lunch .

The 2 little horn switches came apart . :-(

Was not surprised .

I read about repairing them with mono-filament fishing line , but did not find the link . Could some one please help me with working a link ?

Finally found the horns & tested them with a jumper wire . They sounded . Again , not surprised .

Thanks , :-)
God bless
Wyr .
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