I think KarenV6 is not a montero owner anymore.

 

So glad this is still helping folks! I really hated how there wasn't an easy step by step process and I was determined to document it for the masses . I no longer own a Montero but still do get notified on posts in case of questions

 

Yep we did sell it a few years back, not sure why the sensors were having issues

 

Hi Karen, I followed your instructions word for word and the replacement button I installed for the horn doesn't work. Any ideas would be welcome at this point.

 

if I were you I would check the tap and the ground. It's likely one of those two points that is not connected well. Or you may have even tapped into the incorrect wire. As you can see from the photos it's all pretty basic wiring just a momentary connection fires the horn. If all well there check the button? Maybe a bad piece of hardware. Good luck!

 

Well it appears my 2002 Montero Sport now has this issue. It has about 179k on it.

Extreme cold here yet again been ongoing for more than a week (3-4F last night). Woke up this morning and horn is blaring. Pushing on steering wheel and no change. Disconnected the battery to stop it and here I am.

I want to pull a fuse or relay and deal with this later in the spring when conditions are more favorable. Anyone with details on this?

This link below shows how to modify the horn switch but i am leary of working around the airbag.
https://mitsubishiforum.com/forum/mi...ero-ltd-28034/

 

As a follow up, reconnected the battery after several hours and horn did not blare. So I left it alone.

Temperatures are now up as arctic blast has subsided.

Crossing fingers this problem goes away until the next 3-4F prolonged temperature event.

 

I like this repair method better than wiring a separate button for a horn. In an emergency it is hard to be "fishing" for a button on the side of the dash... Thank you for locating and linking this post.
As far as working around the airbag - one of the most important thins is to disconnect the battery before you begin. After that stick with good working habits and don't do anything stupid with it.

 

I also found this link as well with very good pictures and write up on how to repair.

How To fix Pajero/Shogun/Montero Stuck horn problem ? Step by Step guide | Pajero.guru

Currently crossing fingers and hope that now that extreme cold has gone away, that the problem will not recur.

I'm also not a fan of the bypass repair with separate dash switch but certainly understand its simplicity.

 

Seems like this is a common problem.

It was my turn on mine around 165K miles. 02 Montero Limited. Some guy cut me off so instantly smashed the horn button and it wouldnt stop.

Now I've had this happen before but I could manipulate it and shut it off after pressing it more several times

This time it just wouldnt stop. So embarassing as I had to drive through a neighborhood.

I just pulled the fuse. This fuse just disables the horn. The horn still sounds when arming the factory alarm unless its a different horn then forget the correlation.

Just too lazy to fix at this point. Now I just have to buy one of those disposable air horns to use in case and keep it in the vehicle.