The horn on my 1996 Corolla randomly goes off while i'm driving without me pressing down on it, How can I fix?

You can unplug the horn/s. You could pull the horn fuse, pull the horn relay. Of course that isn't the proper fix, you may need the horn. The problem is usually the wiring in the steering column. I can't be positive, at the moment.

Sounds like a bad horn button which is actually part of the airbag. Replace your airbag. They're cheap on e-bay and it's not hard to do. Just make sure you disconnect the battery before doing any airbag work.

Have you checked all your wiring to the horn and made sure there is no shorts in it ????

HI,
Try to find out first what is the part that cause the malfunction of the horn.
The three major part of the horn is the relay, harness & horn pad, and horn itself.
Check the relay if it is functioning by replacing it with similar type ( if you have the spare or a similar relay in the relay/fuse box in engine compartment ). Let somebody push the pad horn and if you hear a clicking sound on the relay, it means there is a current that activates the relay( no probs from the horn pad and harness ).
Check the horn, just get a wire and directly connect it to the positive pole of the battery and connect it( wire ) to the positive terminal of the horn, it should activate the horn, if not the problem is the horn and you have to replace it.

Hope that helps!

disconnect battery leads and reconnect them to try to reset horn and locks

Try checking for a bad or broken connection or a blown fuse.

depends what the problem IS...................... do they make any noise at all??? do you here any type of click when pushing the button??? have you checked the fuse? is it good? is the horn getting power when the button is pressed? is it getting ground??? if it has power and ground at the horn, th ehorn is bad.

was it hot outside-heat could deform the steering wheel horn pad and make the horn go off,remove the horn pad and airbag unit(take fuse out for airbag system wait a few mins)then put the fuse that you removed back in place and see if the horn goes off again.

y horn on my Seabring would go off all by it's self. The dealership told me it was because we did not have a key fob to turn the security system off. We paid $120 to get the fob and have it programmed. The horn did not work except on the panic function of the key fob. I checked the fuse and relay and both were working. I was not getting voltage to the wire on the horn. I had the dealership look it over and they said I needed a new airbag for $600 plus labor. The problem was not in the airbag. The horn pad had a short in it caused by the tabs on the back of the Chrysler emblem that is located on the steering wheel cover. The prongs had made a hole through the horn pad. The horn pad is the switch that connects when you press the horn. To describe it imagine two pieces of copper foil much like aluminium foil. There is a microsopic thin layer of pourus plastic like membrane on each piece of foil. When you press the horn the foil makes contact.
THE FIX:
The tech had removed the airbag from the wheel. I did not have to pull that. Here is how to pull the air bag. There are two screws that hold the cruise controls on the steering whell. The are located on the back of the wheel. When those are removed you can remove the screws that hold the airbag. You will see them. I don't know what size of torx bits you need. Pull the bag our and disconnect all the wires. It will not blow up. Use a 10mm socket or wrench to remove four lock nuts. You will have to pry the metal cover off of the airbag cover. Be sure to bend the prongs back in for replacement. Now, Use a pair of side cutters or your choice tool to cut the holders that retain the horn pad. Pull the horn pad and cut the indented spots out. I used a single edged razor blade. Once the holes were made I used a pocket screw driver to open upt the horn pad. Don't damage the two foils. When you get an opening large enough to grab pull the two foils apart and use electricle tape to insulate the two inner sides of the foil where you made the cuts. Now put it back together. It took me a little over an hour. No shop will asume the responsibility to tamper with the airbag so you are on your own unless you want to pay me. I am an ASE Master Technician. Don't pay the $600 the shops want. It's already broken. What can it hurt?

Try your fuse panel. You must have blown the ignition fuse when replacing the starter.