Notes When Repairing and Upgrading Car Horns

car horn upgrade
Latest update date: February 20, 11

Car horn is an indispensable audio device on all means of transport. It plays an important role in ensuring traffic safety, helping drivers notify those around them of their presence and intentions.

The car horn is one of the important parts, not only serving the purpose of asking for the right of way but also helping the driver to notify other vehicles of his presence. Currently, there are two popular types of horns: air horns and electric horns. Of which, electric horns are mainly used in cars. Below are the Important notes when repairing or upgrading car horns.

car horn upgrade
Repairing and upgrading car horns – things to know

Structure of car electric horn

Car electric horns have a complex structure with many main parts:

  • Electromagnet: Creates the magnetic field needed to operate the buzzer.
  • Horn housing: Protects internal components and produces sound.
  • Capacitor: Helps stabilize the current.
  • Contact: Opens and closes the circuit to activate the buzzer.
  • Magnetic steel plate and vibrating disc: Produces sound when activated.

The electric horn circuit consists of components such as the horn relay, electric lock, battery and horn button. When the button is pressed, the relay will close the contact to bring electricity into the horn, creating sound.

Reasons why car horn does not sound

When the car horn does not work, it can be due to several different reasons:

  • Blown fuse: This is the most common cause of a buzzer not sounding.
  • Loose or broken power cord: An unstable power supply cord can cause the buzzer to not work.
  • Broken button: If the button on the steering wheel is broken, the horn will not sound.
  • Relay failure: Relays can be damaged due to long-term use or overload.

How to repair car electric horn effectively

When repairing a car horn, you need to follow these steps:

  • Check the power supply: Use a test light to check if there is current to the relay.
  • Contact cleaning: If the contacts are dirty or pitted, they need to be cleaned to ensure good contact.
  • Replace damaged components: If the coil is burned or broken, you need to rewind or replace it.
  • Sound adjustment: The sound of the horn depends on the frequency of vibration of the vibrating membrane. You can adjust the adjusting screw to change the volume.
car horn repair
How to repair car horn

Note on adjusting and repairing the car's electric horn when the horn does not sound

When the electric car horn doesn't sound, you can try adjusting and repairing it as follows:

  • You will attach a piece of cool cord. At this time, you should shave off the place where the horn is attached so it can come into contact with the cooler.
  • You can use the lamp to test one cool connector to touch the BAT connector. If it does not spark fire, then surely open circuit from battery to. If it is on fire, you use this wire to touch the head of H, if the buzzer sounds, you can identify that the horn relay is broken.
  • If you try the above methods and the buzzer still does not sound, you need to touch the wire to the wire's stake. If the siren is an open circuit from the relay to the horn, while the horn is still unable to sound, the horn is broken.
  • If the case of a car horn sounds constantly but it cannot be turned off, it is caused by a cool touch at the relay line to the horn button.

It can be said that car horn is an indispensable part of the car. It is a device that helps other traffic drivers to recognize their presence on the route. At the same time, car horns also help cars ask for easier roads. Therefore, if the horn is malfunctioning or damaged, you cannot ignore it.

FAQ – Frequently Asked Questions

1. How to periodically check the car horn system?

Regular inspections should be performed every 6 months, including checking the wiring, relays, and contacts. Make sure the buzzer sounds clearly and is not buzzing or muffled.

2. What is the average cost to repair or upgrade a car horn?

The cost of repairing or upgrading a car horn usually ranges from VND500.000 to VND2.000.000, depending on the type of horn and the extent of the damage. Replacing components such as relays or coils may cost more.

3. How to choose the right electric horn for each type of vehicle?

When choosing an electric horn, consider the power, loudness, and compatibility with the vehicle's electrical system. Horns with a power output of 100 to 150 dB are suitable for cars, while trucks should use horns with higher power.

4. What are the common mistakes when upgrading horns?

Common mistakes when upgrading a horn include incorrect installation, incompatibility with the electrical system, and use of poor quality components. These issues can result in the horn not working or damage to the vehicle's electrical system.

5. Professional car horn upgrade/repair address in HCM?

Thanh Phong Auto is one of the leading prestigious auto repair and maintenance centers in Ho Chi Minh City, established in 2013. With a team of highly qualified engineers and technicians, Thanh Phong Auto is committed to providing quality and efficient repair services.

- Notes When Repairing and Upgrading Car Horns
Professional car repair/care garage, good price in HCM

Here, customers will experience a variety of diverse services, including:

  • Regular maintenance: Ensure the vehicle always operates stably and safely with a systematic maintenance process.
  • Engine repair and Car gearbox: Our team of highly skilled mechanics will handle complex engine and transmission problems, helping to restore vehicle performance.
  • Interior and exterior upgrades: Services such as audio upgrade, insulation film stickers, and increased light output improves the driving experience.
  • Car cleaning service: Interior cleaning , and exterior cleaning Professional, bringing cleanliness and freshness to your car.
  • Attractive promotions: Thanh Phong Auto regularly has promotions, including free car wash service when customers use maintenance services.

With Formula "Honesty - Dedication - Responsibility“, Thanh Phong Auto not only focuses on service quality but also puts customers first. Customers can feel secure when entrusting their cars here, thanks to the professional and transparent working process. Come to Thanh Phong Auto to experience the best car repair service!

Above is the information we want to share with you about Notes when repairing and replacing car hornsOh. Hopefully the information we provide will help you have a more specific view and know how to preserve and maintain your car horn well.

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