Most likely a blown fuse. Otherwise bad wiring going to the horn or a bad horn.
check the horn fuse
could be horn relay in underhood fuse box. or bad horn..
Horn relay Horn fuse steering wheel switch
bad ground or wiring, bad switch/button, bad horn, bad horn relay, fuse.
yes horn is not working
astra 1.7dti 02 horn not working
A loose wire would cause the horn to stop working on your Dodge Avenger 2.4L engine.
It is important to have a horn working for safety reasons. If the fuse or relay is working then it would be best to check the clock spring behind the vehicles steering wheel.
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.
I would check and see if it has a blowed fuse first.
A blown fuse may be the reason a horn is not working in a Chevy van. It could also be caused by a faulty horn relay.
check the horn relay or the horn itself!