Horn does not work

Tiny
MIKE DALEY
  • MEMBER
  • 2005 CHEVROLET MALIBU
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 84,000 MILES
Horn does not work. Blows fuse in under hood fuse block. How do I check the steering wheel horn switch? I know how to remove the air bag, safely.
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Tuesday, June 20th, 2017 AT 12:26 PM

7 Replies

Tiny
STEVE W.
  • MECHANIC
  • 12,883 POSTS
Does it still blow the fuse if you disconnect the horns wiring connector? How about if you remove the relay and jumper from either of the power feed terminals to the switch side and hit the horn switch? Does it blow if you jump from the power feed to the horn?
If it blows when you jumper to the horn only you have a bad horn.
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Tuesday, June 20th, 2017 AT 3:12 PM
Tiny
MIKE DALEY
  • MEMBER
  • 4 POSTS
I pulled the horns and put power directly to the connector, no sound. I will pick up replacement horns tonight. Is there a way to test the horn switch in the steering wheel cover? If I pull the air bag assembly should there be an ohmic value from the ground connector and the red wire? Should it go to 0 if I press on the horn symbol?
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Thursday, June 22nd, 2017 AT 9:56 AM
Tiny
STEVE W.
  • MECHANIC
  • 12,883 POSTS
Easy way to test, Connect a test light in place of the horn. Push the horn control, if the light comes on the switch is OK.
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Thursday, June 22nd, 2017 AT 10:33 AM
Tiny
MIKE DALEY
  • MEMBER
  • 4 POSTS
Replaced the horn with a universal one from Orielly, works fine.
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Friday, June 23rd, 2017 AT 9:29 AM
Tiny
STEVE W.
  • MECHANIC
  • 12,883 POSTS
Good news. Thank you for using 2CarPros. Please return with any automotive questions, Tell your friends about us.
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Friday, June 23rd, 2017 AT 10:44 AM
Tiny
MIKE DALEY
  • MEMBER
  • 4 POSTS
Absolutely, really good and useful site.
And since I am here, when I replaced the horn, I noticed that there were a few spots on the steering wheel where the horn does not work and one where the horn stayed on until I tapped the wheel again. Could the steering wheel contacts be failing? I'm assuming that there is some type of contacts across the inside that when they touch activates the horn relay?
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Friday, June 23rd, 2017 AT 11:48 AM
Tiny
STEVE W.
  • MECHANIC
  • 12,883 POSTS
Could be some corrosion on the contacts, If you think about how often you use the horn it wouldn't be a surprise. Now if the issue is that you can turn the steering wheel and it works/doesn't work, that would be a failing clock spring contact.
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Saturday, June 24th, 2017 AT 12:29 AM

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