Notes When Repairing Car Dashboard Clock and Speedometer

Dashboard Clock on the car not only displays the speed, it is also an important information center, providing the driver with an overview of the vehicle's operating status. From oil pressure, fuel level, engine temperature, to safety warnings, all are displayed on this dashboard. In particular, the speedometer plays a key role, helping the driver control the speed, ensuring safety on every journey.

However, after a period of use, the Dashboard clock, especially the speedometer, can malfunction due to many reasons. Timely repair and maintenance is extremely necessary. This article will provide you with detailed information and important notes when repairing the Dashboard clock and car speedometer.

How does a speedometer work?

To better understand the problems that can occur with the speedometer, we first need to understand the basic principles of its operation.

Speed ​​measurement: The speedometer works by measuring the rotational speed of the wheels or transmission. This information is converted into an electronic signal and displayed on the meter.

Structure:

• Transmission cable: In older cars, the transmission cable (clock cable) is used to connect the transmission to the speedometer. Inside the cable is a rotating shaft that is connected to a gear in the transmission. When the car moves, the gear rotates, causing the shaft in the cable to rotate as well.
• Permanent Magnet: The other end of the drive cable is connected to a permanent magnet located inside the speedometer assembly.
• Speedcup: This magnet is placed in a cup-shaped metal box called the Speedcup. A speed indicator is attached to the Speedcup.
• Hairspring: The speedometer needle is held in place by a hairspring, which rotates with the movement of the magnet.

How it works:

• As the vehicle moves, the shaft in the drive cable rotates.
• This rotation causes the permanent magnet to rotate as well.
• The magnetic field of the magnet acts on the Speedcup, causing the Speedcup to rotate.
• The Speedcup pulls the speedometer needle along, displaying the vehicle speed on the dial.

Modern technology: In modern cars, speed sensors are used instead of transmission cables. This sensor is usually mounted on the gearbox or wheel, using the Hall effect to measure speed and convert it into an electronic signal.

Main causes of speedometer problems

1. Speed ​​sensor

Function: The speed sensor provides information about the vehicle's speed to the vehicle's electrical system, helping systems such as ABS (anti-lock braking system) and cruise control to operate effectively.

Cause of failure: Dirt, brake dust or interference during wheel repair can damage this sensor. When the sensor is faulty, a warning light on the dashboard will light up.

Solution: Replacing the speed sensor is the most effective fix.

2. Faulty motor control system

Function: This system consists of a computer and electronic components responsible for reporting the speed to the speedometer.

Cause of failure: Fuse problems or external malfunctions can cause this system to not function properly.

Solution: Check the entire electrical system and replace damaged parts if necessary.

3. Upgrade the speedometer meter

Reason for upgrade: After a long period of use, the Dashboard clock may become outdated or damaged due to environmental factors and use.

Solution: Upgrade to the new clock system to improve performance and accuracy in displaying information.

Appropriate remedial action

To ensure safe driving, it is necessary to repair or replace the speedometer. Here are some steps you should take:

• Periodic Inspection: Perform periodic inspections of the electrical system and speed sensors to detect problems early.
• Use professional services: If you are not confident in determining the cause of the damage, seek out reputable repair centers with experienced technicians.
• Upgrade technology: Invest in modern speedometers that incorporate new technology to improve performance and accuracy.

Repairing the dashboard and car speedometer not only helps you maintain safety while driving but also ensures that you always grasp the operating status of the vehicle. Hopefully the above information will help you gain more experience in maintaining and upgrading the clock system of your car.

FAQ – Frequently Asked Questions

1. How are mechanical and electronic speedometers different?

Mechanical speedometers use mechanical mechanisms to measure speed, while electronic speedometers use electronic sensors to provide more accurate information. Electronic speedometers are typically more accurate with an error of only about 1% compared to 2-5% for mechanical speedometers.

2. How often should the meter be checked and maintained?

The odometer should be checked at least once a year or every 20.000 km to ensure accurate operation. Regular maintenance helps to detect potential problems early.

3. How much does it typically cost to repair or replace a meter?

The cost of repairing an odometer can range from VND500.000 to VND2.000.000 depending on the type of vehicle and the extent of damage. A complete replacement can cost up to VND5.000.000 for high-end vehicles.

4. How to know when the speedometer is faulty?

Signs of a fault include: the speedometer needle not moving, the speed display being incorrect (too high or too low), or a warning light on the dashboard illuminating.

5. Are there any tips to help use the Dashboard clock more effectively?

Drivers should regularly monitor indicators such as fuel level, engine temperature and oil pressure to detect potential problems early, helping to prolong the life of the vehicle.

6. Reputable car dashboard/speedometer repair unit?

Thanh Phong Auto is proud to be one of the leading auto repair and maintenance centers in Ho Chi Minh City. Established in October 10, Thanh Phong Auto has built a solid reputation thanks to a team of experienced engineers and technicians. We provide comprehensive auto maintenance and repair services with a professional working process, ensuring to meet all customer needs.

We not only repair basic problems but also provide modern upgrade services such as Brightness increase, insulation film stickers high-end and 360-degree camera installation. With a commitment to providing the highest quality products and services, Thanh Phong Auto always closely monitors the auto market situation to update the latest technology, in order to serve customers in the best way. Coming to us, you will experience dedicated, thoughtful and professional service, helping your car always be in the best operating condition.