A horn that no longer works can potentially become unsafe and must be repaired as soon as possible. You must always, on your Mazda 3, be able to report your presence thanks to this essential tool. It could simply be broken and have a peculiar sound on your Mazda 3, but in any case 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 realise that you can do it yourself without going to the garage for your Mazda 3.
First, start by examining where the failure came from. Based on this you will find out what repairs to do.
We will lead you step by step through the different tests:

horn-not-workingmazda-3

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. indeed, on your Mazda 3 there are several trumpets that carry sound.
Next step, try to track down the horn. You will find it close to the radiator at the front of your car, near the grille. The grille is the small grille at the front of vehicles that enables air to enter while protecting the parts of your Mazda 3.

Horn cables unplugged on my Mazda 3

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 must 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 Mazda 3! 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 Mazda 3

You may well buy another tube to replace the flawed ones if you have been able to identify them on your Mazda 3 thanks to the noise.

Fuse blown

you might want to also check the fuses. To find this fuse box, we invite you to look at our previous article on the subject:
“Where to find the fuse box on a Mazda 3”
You should also take a 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 dispose of it using a pair of pliers. To verify if it is burned, look at the metal part. If this one is blown, your fuse has blown on your Mazda 3. It must as a consequence 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 Mazda 3, examine your dashboard and specifically 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. Nevertheless, for an airbag indicator problem on your Mazda 3, it’s a good idea to go to a professional as it is more challenging to manage alone.

Conclusion

Here are the different causes that could have an impact on your Mazda 3’s horn. Trumpets, fuses, rotating switch, airbag. Precisely determining the fault will help you to solve it. Be vigilant to replace the fuse with an identical fuse of the same intensity.

To get more tips on the Mazda 3, take a look at the Mazda 3 category.