Horn does not work

Tiny
JSCONRADO007
  • MEMBER
  • 2000 CHEVROLET 3500
  • 7.4L
  • V8
  • 2WD
  • AUTOMATIC
  • 225,000 MILES
The horn works when I remove the relay and use needle nose pliers to short it out. I've replaced the horn relay and the horn pad. The fuse is good and I've tried different fuses. What's next to try? Thanks for the help!
Saturday, July 3rd, 2021 AT 11:45 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

I attached a wiring diagram for you to view. The trigger for the relay is the wire to the horn switch on the steering wheel. You need to remove the cover and test the wire for power.

I would use a voltmeter to verify battery voltage. If you do not have voltage, you need to go to the clock spring below the steering wheel as that passes the voltage to the switch.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

I attached the procedure for the replacement of the clock spring. That is a very common failure for no horn.

Roy
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Saturday, July 3rd, 2021 AT 12:35 PM
Tiny
JSCONRADO007
  • MEMBER
  • 2 POSTS
Thanks Roy. I will look into this in the morning and let you know how it works!
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Saturday, July 3rd, 2021 AT 3:32 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Saturday, July 3rd, 2021 AT 3:34 PM

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