Horn Won't Stop

[Eggman.]

I've got this Corolla, and the horn won't stop going off. It's not constant, it's more like as if someone was pressing the horn over and over. Whether the car is armed or disarmed, engine on or not, driving or stopped, the horn keeps going off. No lights flashing, alarm seems to be working fine too.

For now, I've disconnected the horn. Any ideas? I've searched but only came up with other horn problems, not this one.

[dizzydd87]

if it has an aftermarket alarm system remove it. this might help you solve your problem or give you a better chance of diagnosing it. i have seen alot of aftermarket alarms mess up and do some crazy stuff.

[Eggman.]

factory alarm :s

[hunterxaz]

lol man that's got to be fucking annoying