Horn not working

1. First check the fuse isn't burned out. Fuse box most likely below driver or passenger dashboard console. (Check your auto Manual for fuse box locations & details where to find the horn fuse on your model).
2. If fuse is intact, open hood and trace wires leading to horn speaker (usually near headlight, behind grill). Use voltmeter or a simple circuit tester if the leads are getting current to the snail horn device.

* Autozone has a lighted circuit tester for $10:
3. If electrical current is absent when driver presses horn pad @steering wheel, it could be simply lose or dirty contacts. Otherwise if replacing the "snail" horn doesn't solve, Steering pad sensor may have been damaged or bent out of shape by force.

If you know you hit the horn too hard, then pad inspection is your first step. BEWARE: Most autos steering wheels have AIR BAGS with very delicate sensors. Replacing an airbag starts at $1000.

There should be a fuse for the horns. Your owner's manual would give the location. It may be in the fuse/relay block under the hood. Is there another fuse panel under the driver's side dash?
There is also a horn relay in the horn circuit. This should be in the under hood relay block, but they only rarely are the problem. The most common problem with no horn is the horn switch under the horn pad on the steering wheel. The metal contact strips often get bent out of shape. You would have to pull the horn pad off to check. The pad may be held on by plastic clips, or maybe Phillips head screws from the back of steering wheel. If that part looks good, you would probably need a voltmeter or test light to start checking for power along the circuit. Sometimes just finding the horns themselves can be difficult. Maybe behind the grill, or seen from inside a fender well (behind the fender inner liner), or mounted to a lower radiator support...somewhere on the front of car.

My horn is all set now. I took the steering wheel pad off and put electrical tape around the wires and put it back together. It has been fine sense. Thank God.

probably need a new clock spring. it sits behind the steering wheel. have you tested the horn pad (switch) itself?

It's in front of the drivers front wheel. Pull back the inner fender and you should see them. If the horn is not working and possibly the cruise as well as an illuminated airbag light, then the clock spring behind the steering wheel is the usual problem. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

I don't have a diagram, but if I understand what you're saying, there is a copper ring at the top of the steering column, visible before you install the steering wheel. The copper pin is connected to the horn button. The intent being that when you press the horn button, it completes the ground from the steering wheel through the horn button, through the pin, to the copper ring.
If this is correct, there should be no contact between the steering wheel and the copper ring other than the pin. Check to see if there may have been a spacer (washer, etc) below the steering wheel on the steering shaft that holds it just far enough away from the copper ring so that only the copper pin makes contact.

LOOK UNDER THE LOWER AIR DEFLECTOR FROM BELOW THE RADIATOR. IF YOU HOT WIRE CAR HORN AND IT WORKS.YOU HAVE TO REPLACE THE WHOLE AIRBAG IN STEERING WITH HORN CONTROL BUTTONS.YOU NEED TO DISABLE AIRBAG IN STEERING WHEEL WHEN REPLACING AIRBAG AND HORN CONTROL BUTTON PAD.JUST TURN OFF RADIO FIRST, THEN DISCONNECT REMOVE THE NEGATIVE BATTERY CABLE.WAIT 20 MINUTES BEFORE WORKING ON AIRBAG AND HORN PAD IN THE STEERING WHEEL.

Horns are pretty simple units and don't need to feed through the ECU.
When you say you have checked the wiring and tested it, do you mean the wiring at the horns? or the wiring at the horn button on the steering wheel pad or where ever your horn button is located?
Sometimes the horn button breaks usually due to wear, If that is the case you will need to remove the horn pad or button and check/repair or replace. If this is working then most likely your horns are dead, not usual as they are fairly robust but not unheard of.

Try to find the horn and use a test light to try to ground out one or the other contacts. The horn should be energized at all times, as long as the battery is charged.

The horn should sound if you ground out one or the other terminal with a test light. If not, then the horn is bad.

Also, one can check the button at the steering wheel. If one uses a test light to ground out the switch there, the horn should sound.

See fig. 3 for wire for horn in steering wheel:

REMOVAL & INSTALLATION

Without Air Bag
See Figures 1, 2, 3, 4, 5, 6, 7 and 8
Disconnect the battery ground cable before removing the steering wheel. When installing a steering wheel, always make sure that the turn signal lever is in the neutral position.

1. Disconnect the negative battery cable.
2. If your vehicle is equipped with controls for the radio on the steering wheel proceed as follows:

Fig. Fig. 1: Pry out the control button assembly with a thin-bladed tool along the top of the edge, being careful not to damage the control assembly

1. Pry out the control button assembly with a thin bladed tool along the top of the edge of the assembly.
2. Disconnect the steering wheel control.

1. On vehicles without the radio controls on the steering pad, take a thin-bladed tool and pry the pad off the steering wheel. On wheels with a center cap, pull off the cap.

Fig. Fig. 2: Common steering wheel pad types

1. After lifting the trim off, pry the horn wires from the back of the pad. On some models gently push down on the horn lead and turn left, the wire and spring will then come out of the canceling cam tower.

Fig. Fig. 3: Carefully pry the lead wire for the horn off of the horn pad

1. Remove the retainer ring with a pair of ring expanders, then remove the steering wheel nut.

There is something called a clock spring in the column that is used for the airbag, horn and cruise control buttons. This clock spring if messed with will cause a/bag light to come on and possibly cause a/bag failure if there is a collision. DON"T mess with the wiring in the column. Run new wires in to the horn or install an a/market horn.