check your fuses, find the horn and make sure it is not disconnected.start there then disconnect the wiring from the horn and run apazir of wires from battery to horn hot to hot and negative to negative, toouch to battery see if it beeps if it does then it is probavly the horn button in the stearing wheel.
your horn is not working, the alarm has a different horn.
Most likely a blown fuse. But, the horn itself can be defective.
Switch? Relay?
You should in the UK, as your car will fail the MOT test if your horn does not work.
A loose wire or a blown fuse would.
Probably a fuse, check to see if your horn works, really!
Fuse, bad horn, loose wire, bad horn switch, or loose ground at the horn. Check the fuse, apply 12 volts directly to the horn, tighten the horn bracket, check the wiring, and this will eliminate 4 possibilities.
yes horn is not working
astra 1.7dti 02 horn not working
I've got the same car, and my horn isn't working, it works sometimes but rarely\ If its has Airbags , you should check the Spiral Cable , you have to remove the steering wheel
No, they should still work.
It depends why it isn't working. You need to find where the power stops between the horn button to the horn. If power gets to the horn and it doesn't sound, it will probably need a horn.