Question about 1987 Chevrolet R30

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1984 Chev P30 Motor home horn will not honk using the horn button replaced the relay, nothing. horn will honk bypassing the relay and horn button what to check next?

Removing the horn relay I have power to the relay block so the fuse is good. I can take a jumper wire and jump from the power term. on the block to the horn term on the block and it will honk. I have what looks like a weak spark at the steering wheel contact and have changed the relay. what should I check next?

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  • 69 Answers

Seems like a steering wheel issue, slip ring contact

Posted on Apr 19, 2014

Testimonial: "The problem was the horn contact button located in the turn signal switch was just barely touching the horn contact ring not making a good solid contact."

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 1997 Suburban and horn not working

behind the airbag is the horn switch i dont reccomend checking the the switch unless you know how to disarm the srs systems but i accidently leaned on it once pushed the plate in and when i pushed on it it went off but if i took my hand off it it would go back on otherwise their could just be a simple short

Posted on Feb 22, 2009

outdoorsman5
  • 631 Answers

SOURCE: 2000 Tahoe Horn broken

You can remove the horn relay and use a Ohm meter and check the resistance between the horn relay connector terminal No. 86 (Black Wire) and ground. If the ohms are less then 5 ohms replace the horn relay. There are a lot more tests but as Polarcycle states you can do what he suggested other then I believe you have two horns in this vehicle.

Posted on Aug 03, 2009

emissionwiz
  • 76848 Answers

SOURCE: Horn wont honk. Fuse is good and horn honks when

In most cases this problem is caused by the rotating ribbon circuit contact under the steering wheel having a broken filament, the part is known as a clock spring contact, u will need to properly disarm the airbag and remove the steering wheel to access the part. WARNING: Failure to follow factory Airbag disarming protocol can result in an unexpected Airbag deployment and possible serious personnel injury or death.

Posted on Aug 04, 2009

  • 227 Answers

SOURCE: 97 chev express 2500 --

replace relay

Posted on Feb 03, 2011

  • 610 Answers

SOURCE: horn keeps blowing on 1999

A salvage yard or dealership should be able to fix you up with the parts. If you have a drivers side airbag make very sure you know the proper procedure to start disassembly of the column, failure to follow proper procedures could be FATAL. I can't stress this enough.

Posted on Sep 24, 2011

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english please.
is car the Brazil HOmbre? ours is different. here. in USA.

we are USA english forum
horn is dead, 1997 Hombre.
check the fuse yet,that is always first, marked HORN it is.
a 20amp fuse.

the horn is very simple. but the path it follows is complex
(due to steering wheel turns, complications in all cars made)
first off is air bags if car has air bags , working on horn parts in dash will be dangerous, so defeat air bags first. !
the FSM book tells how to do that. read that. and do that.
be safe.
so you can test the horn on a battery, hot wired. just like a light bulb. same test. but why would both horns fail>?"relay"
clean the horn base grounds so its not rusty.
sure one horn rust, ignored then 2nd rusts and owner acts.
you can check the horn relay, or replace it.
the check the horn relay coil for 12vdc across the coil of relay while honking, 12vdc honking, if 0v, that means the horn switch in the steering hub is bad or the airbag, clock spring contacts bad (danger area)
the horn button grounds a wire. to energize the horn relay.
it only takes a volt meter to test all this.
got one?
other wise it's a gue$$ing game.

our car (USA) is:
"In 1996, Isuzu replaced its Pick Up with a version of the Louisiana-built Chevrolet S-10, the Isuzu Hombre, based on the Brazilian market S-10"

so will answer for S10.
this car has 2 horns if both are dead, check the relay

using a volt meter,
i honk the horn and the bottom of the coil in relay below goes to 0v
from 12v.
if its not 12vdc to begin i check the top of coil there.
if that pin is 0v, the fuse is blown, good looking fuse can in fact be bad. we test fuses. not guess.
if you honk the relay closes, (can be seen or heard to close)
click?
if the relay does click, then he bottom contact below goes to 12vdc
if not the relay IS BAD.
the below horns grounds are missing , error in the manual.
the horn bases are grounded. to the car body. if not they will be dead.


25764298-l5vdxutfli5mxanegjlvuoei-1-0.jpg

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