have a 2004 3500 ram quad cab. 11 pm horn started blowing on its own in driveway. horn won't stop blowing unless you remove the fuse. anyone else ever have this problem. would appreciate any input. need any and all help i can get. disconnected battery terminsls but didn't help when reinstalled.

 

sounds like your switch is constantly grounded. if I remember correctly, your horn has constant hot going to it and your horn switch provides the ground. Don't know what would cause that but my guess is something between the horn and your switch (steering wheel) is grounded out.

 

hi out there. still baffled and needing help and input on this horn problem. would sppreciaye any and all suggestions. snyone familiar with horn wiring diagrama and or wire colors. please help

 

I think trik396 hit it on the head. There is always juice going to the switch. I believe it's a metal disc behind the steering wheel. When you push on the horn button it creates a contact and makes a ground and the horn sounds. I would start my search there but be careful trying to remove the steering wheel since you have an airbag on it...

 

Sorry, I can't be of help in your situation. But, I will add that the horn circuits can be a bit flakey. I was driving down the street a few months ago and the horn honked all on its own. But, in my case, it stopped a few seconds after and has never done it again. At the time, I think I posted this and a few other members responded with similar issues.

 

Yes, I have expeienced the same problem on my S-10 a few years ago. It turned out to be the paper insulators under the contact ring. When it occurred, it was very damp and foggy. The paper insulator absorbed enough dampness from the air that it became conductive, but any short in the horn switch area will create the same problem.

 

Your horn switch is grounded at the steering wheel. It goes from there to the clockspring via a Dark Grey/Violet wire. Then to the instrument cluster connector C1 Pin B14 via the same color wire.

The horn relay is fed by fuse 45 (which you already know) and feeds the horn via a Dark Grey/Orange wire. The relay is fired by grounding the data link connector on a White/Violet wire.

You can research this by going to the Dodge Body Builders site and looking at the wiring diagrams.

 

thsnks loads for the comebavk and the info.
tried to find the dodge body builders site but could not. would it be too much to ask for you to post the site here or to link it to me. i would appreciate it.
could you give me any info in the event its necessary for me to remove the airbag to get to the horn switch. once again thanks for your input. i think i need sll the help i can get for this one

 

Here's the site link Dodge Body Builders Guide
And here's the link to the file that it links to www.dodge.com/bodybuilder/year.pdf

The biggest thing in removing the airbag is to unplug it from the control box under the seat before removing it.