A car horn is an important part of keeping your car running smoothly. Car horns may be too soft or completely silent. You can usually fix horn yourself. But if the damage is severe and you need to replace other parts (such as airbags), you should call a professional.
1. Determine speaker's problem. Clarify where problem is in order to address it purposefully.
2. Open hood of car and ask assistant to honk you. Many vehicles have more than two horns. If beep sound is very quiet, there may be a problem with one or more of beeps.
3. Locate horn at location of car's radiator and grille.
4. Remove wire connection device. Grip one end of wire connector on horn and gently pull down while removing bolt and tab. Clean removed parts and reinstall them. Ask your assistant to try honking again.
5. If cleaning part does not work, horn needs to be replaced. You can choose original or regular speakers.
Fixing "no sound" problem
1. If horn does not sound at all, check vehicle's capacitor bank. Follow instructions and find out which capacitor is connected to the speaker.
2. Using tweezers or pliers, remove capacitor. You can also do this with your bare hands. If metal wire in capacitor breaks, it is damaged.
3. Replace damaged capacitors. Condenser plates are available from auto parts stores. After replacing, ask assistant to try horn again.
4. If capacitor is not damaged, check if airbag indicator light is on.
Damaged airbags can also cause horn problems. A deployed airbag would interfere with clock spring, interrupting circuit to steering wheel horn button, disconnecting button from horn.
5. If airbag indicator stays on, contact professional service personnel for help.