From what I remember when I took the bag apart last year, the button is actually a pressure sensitive patch of mylar type material sandwiched between the bag and the outer cover with 2 wires attached to it with a connector on the ends of the wires. There are 2, one in each side of the airbag fixed in place with light adhesive(which had disintegrated so it was easy to just lift the patch and wires off the inner cover). I found that once I removed the outer cover of the bag and removed the button/patch it was able to function correctly again. I tested the button patch once removed and found the circuit was open now which leads me to believe the folded-up air bag expanded slightly over time and heat caused the bag to further expand thus causing the bag to push against the button patch and the outer cover causing the pressure sensitive button patch to close the circuit and cause the horn blowing. I have not gotten to the point of putting the assembly back together and re-riveting the cover to the airbag frame to see if this will in fact completely fix the problem. 4DoorSS and Babywag advise against even taking the bag cover off the frame so putting it all back together and reinstalling it would be dangerous. I remember when the times my horn would go off, if I pressed really hard on the horn area of the bag (thus compressing the folded up airbag inside the cover), sometimes it would fix it temporarily. Wish I could post pics of the disassembled bag and components but everything is packed waiting to be moved as I am relocating to Jacksonville.
OK, I guess I see where you are coming from now. So if I'm understanding you correctly and one of the reasons you would like to remove the Vinyl Cover from the airbag is cause there are some sort of contacts within the AB that also cause the Horn circuit to work? If so, this is not True.
Sorry to burst your "AirBag" here
, but the bag has one sole purpose....being an airbag and is not electrically tied to the Horn Circuit. Under the AB assembly and on the wheel itself are 2 horn Buttons that get shorted once you push down on the AB. Here is a pic of my old wheel once I unbolted the 2 Torx Screws that secure the bag to the wheel. those 2 torx Screws stayed affixed to the Wheel and just screw into the back of the airbag to secure it to the wheel....
So you can see the 2 Horn Circuit buttons from my 95 Wheel in the upper pic. I do believe there are some 3wheels that only have 1 button or maybe I'm thinking of the AB which some have only 1 Horn Logo on the AB cover and others have 2 Horn Logos on the cover. I think the difference in AB's needs to be paired with the AB controller Module under the dash....I think. However, notice the Springs on the 2 Torx bolts to hold the bag on? Those are what allow the Bag to be pushed and spring back when the Horn/AB assembly is pushed.
But again, there is nothing in the AB itself that you should be thinking affects your Horn. However, I have seen where if you tighten down the 2 torx Mounting screws too tight, you can cause thew Horn to go off continuously or it can get triggered if you hit a bump or something. If this happens, just back out the Torx screws enough that the horn contacts on the wheel are not being touched. Back them out too far and the horn wont work at all. but again, this is just the Back Metal side of the AB Assembly touching the 2 horn buttons (as pictured) on my wheel. One last time, DO NOT and there is absolutely NO REASON to take apart your AB Assembly.