You could very well be playing with fire. If your air bag light is on, the clock spring under the air bag is bad. Under NO circumstances should you attempt this repair. DO NOT tap into any YELLOW wire as that is for the air bag. It can and will go off and someone could be seriously hurt. The proper repair should cost from $100.00 to $125.00 at a repair shop.
To wire up a car horn with a button you first need to run one of the wires from the horn to the battery. Take 1of the wires from the horn and run it to where you want the button to go. Connect the wire to the button and that's it.
Broken Or Disconnected Wire To The Horn. Check For Voltage When Horn Button Is Pushed At The Wire After Removing It From The Horn. On A Vet Probably Not Grounded.
The horn should have two wires going to it. One wire is supposed to be hot (battery voltage 12v). The second wire is open but gets grounded when the horn button is depressed, thus completing the electrical circuit and making the horn toot. So, the first check is: are you getting 12v on one of the two wires? the second check is: when a helper presses the horn button do you get ground to the second of the two wires? The third check is: if you ground the second wire at the horn does it toot? If the first check does not produce 12v, then the fuse is blown or the wire from the fuse to the horn is defective. If the second check does not ground the wire, then the wire to horn button is defective or the horn button itself is defective. If the third check does not toot the horn, replace the horn itself.
Most horn buttons provide the ground to energize the horn relay. The horn relay when triggered sends power to the horn.
Run a breaker button from horn to car interior to battery
first remove wire to horn. see if power is going to horn when horn button is pushed. if it does its a horn problem, if not it is probably in the horn button itself.
Run a direct wire from the battery to the horn, if it works the problem is in the horn button or the fuse. On second thought, use a test light to see if the horn wire is getting power when the horn button is pressed. If it is, make sure the horn has a good ground. If everything checks out, replace the horn.
My guess is to cut the power wire to the sounding horn--then hook it to the button switch from both ends of the cut power wire. Then push the new horn button, to see if it works. If it does work then find enough wire to hook the new button to somewhere in the driving area, then rehook the new button. Make sure to check to make sure it works.Then mount the new button. Remember for safety....Unhook negative to the battery while working with power wires, especially if you have a driver's air bag!!
the horn has a ground and hot wire .usually only a hot wire because the horn body is grounded.it also has a horn relay.check the wires(wire)and check the relay.if these are good,the horn may be shot.this is all assuming the horn button or contacts at the steering wheel are good.
Yes you can change the horn button,but make sure that you dont cross or touch any of the other wires other than the horn wire.
Mazda truck horn.First thing is to locate where the problem is by removing the wire on the horn and attaching a test light to the wire. Ground the test light and have someone push the horn button. If the light comes on, you have either a problem in the horn, or the horn is not grounded. If the light does not come on, the fault is either in the horn button (switch) or in the wiring. Ed
Your horn may need replaced, you need to make sure it is getting current by taking off the wire and and checking it with a volt meter, you could have a broken wire or your horn button is bad.