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
yes horn is not working
check the horn relay or the horn itself!
Take to someone who can fix it
You should in the UK, as your car will fail the MOT test if your horn does not work.
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It could be the horn relay, a defective fuse or a shorted wiring. Need to check the wiring first, then the fuse and lastly the horn relay.
If you look at the fuse diagram on the lid of the fuse box, which is found under the hood, it clearly labels the fuse HORN
Check the actual horn. Clean the contact points and apply dielectric grease to the contact points. Test the horn for resistance. Check the horn relay.
I would check and see if it has a blowed fuse first.
Where is the horn relay located on a 4 cylinder Toyota camry?
where is the horn on 2001 pontiac aztec