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My horn does not work when I press horn pad on.

Tiny
ROBERT CARR
  • MEMBER
  • 2003 GMC SONOMA
  • 33,400 MILES
My horn does not work when I press horn pad on the steering wheel but it sounds when I press the security button on mt key pad
Wednesday, December 26th, 2012 AT 4:56 PM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Usually the problem is the wiring in the steering column. Disarm the airbag before working on anything. Give me a second and I will post the horn wiring diagram.
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Wednesday, December 26th, 2012 AT 4:59 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The horn button is a ground for the coil side of horn relay. Click on the link for wiring.

http://postimage.org/image/j3lqwp9jr/
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Wednesday, December 26th, 2012 AT 5:05 PM

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