A horn that no longer works can potentially become dangerous and must be fixed as soon as possible. You should certainly always, on your Fiat 500, be able to report your presence thanks to this essential device. It could simply be affected and have a unusual sound on your Fiat 500, but at any rate it is a problem that you must remedy. The objective of this article is to accompany you step by step in this process because you will realize that you can do it yourself without going to the garage for your Fiat 500.
First, start by examining where the failure came from. Based on this you will be aware of what repairs to do.
We will guide you step by step through the different tests:


Try honking the horn with the cover open. If you hear a sound, but much weaker than usual, it means that some tubes are impaired but some still work. actually, on your Fiat 500 there are several trumpets that carry sound.
Step two, try to track down the horn. You will find it near the radiator at the front of your car, near the grille. The grille is the small grille at the front of vehicles that allows air to enter while protecting the parts of your Fiat 500.

Horn cables unplugged on my Fiat 500

Once the horn is identified, we will try to disconnect and reconnect the connecting wires in order to perform a new test. To do this, take the two connected wires, pull them out by their ends towards you. There should also be a horn fixing bolt that you have to unscrew. Then clean it all up with a brush or something, then reconnect it all. Try honking your horn again. Does it work?
You have found the solution for your Fiat 500! If nothing changes, let’s go a little further in the tests and explanations.
You are confronted with several solutions at this stage.

Faulty horn horn on my Fiat 500

You could buy another tube to replace the defective ones if you have been able to identify them on your Fiat 500 thanks to the noise.

Fuse blown

you should also check the fuses. To find this fuse box, we invite you to visit our previous article on the subject:
“Where to find the fuse box on a Fiat 500”
You should also look in your vehicle owner’s manual for the fuse references of the horn fuse that you must identify precisely.
Once the fuse is identified, you can remove it using a pair of pliers. To check if it is burned, look at the metal part. If this one is blown, your fuse has blown on your Fiat 500. It must therefore be replaced. If it looks new, it should not be questioned.
You can come across this fuse in any car shop or garage. Test the horn again after the fuse has been replaced. Is your horn working again? Congratulations! If this still doesn’t work for your Fiat 500, examine your dashboard and especially your airbag indicator light. If this one is on, there may be a link. Actually, it can have an impact on the rotating switch, a part that acts as a relay between the steering wheel and the horn. Having said that, for an airbag indicator problem on your Fiat 500, it is recommended to go to a professional as it is more complicated to manage alone.


Here are the different causes that could have an impact on your Fiat 500’s horn. Trumpets, fuses, rotating switch, airbag. Precisely identifying the fault will help you to solve it. Be vigilant to replace the fuse with an identical fuse of the same intensity.

If perhaps you have any additional questions about the Fiat 500, do not hesitate to consult our Fiat 500 category.