The horn of your 1991 Toyota Corolla just stopped working how can you fix it?

Answer 1

check for a horn fuse While pushing the horn button repeatedly, listen for a clicking sound either in the cabin (under the dash) or under the hood. If you hear that, the power is going to the horn and thus the horn is bad. It either isn't grounded properly or is defective. Ground or replace it. You could, of course, look for a voltage between the hot horn line and ground when the button is pushed but that requires a 2nd person to push the button.