horn doesn’t work

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=49805
Printed Date: May 12, 2025 at 1:38 AM

Topic: horn doesn’t work

Posted By: diesel pub
Subject: horn doesn’t work
Date Posted: February 10, 2005 at 1:57 PM

I have a 2002 Chevy 2500HD Duramax/Allison. My horn doesn't work. I hear the 'relay" clicking in the fuse box, I have even switch relays around to see if it made a difference. I need it to pass state inspection. Does anyone have a wiring diagram for a horn or know where I can get one? Thnaks!!

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2002 2500HD D/A 4x4

Replies:

Posted By: KarTuneMan
Date Posted: February 10, 2005 at 7:40 PM

Find the horn itself.....it's a diafram that needs to be cleaned....if it can't "buzz" no horn.

by you saying that you can here the relay clicking, tells me that the start of the circuit is fine (the end being the horn itself)

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Posted By: diesel pub
Date Posted: February 11, 2005 at 9:34 AM

Thanks KarTuneMan!! That does make sense now. I will try and find the horn itself, however with this diesel engine taking up every inch of space, any clues where to start looking? Thanks so much !!!!!!!

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2002 2500HD D/A 4x4

Posted By: c3d
Date Posted: February 11, 2005 at 7:25 PM

usually behind the grill, or up along the fenders near the and under the hood

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