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How To Use Car Diagnostic Tool And Solve Problems In Your Car

November 23, 2023

To use the diagnostic tool, connect the OBD2 device to your dashboard and enter the code. However, the process includes several additional steps. How to use car diagnostic tool? Its initial function is to establish a connection with the system, retrieve the necessary information regarding the issues and provide trouble codes that can resolve them.

What Is A Car Diagnostic Tool?

The auto diagnostic tool is a device that connects to a vehicle’s onboard diagnose system and detects the problem in a car. This system is also known as OBD2 and is common in modern vehicles. They monitor various aspects and overall performance.

A car diagnostic tool, also known as the OBD2, is a unique gadget with modern technology. It is created to link with a vehicle’s onboard computer system. The OBD2 technology is found in the majority of current vehicles. How to use diagnostic tool for car is easier to understand with the following functions of auto-diagnostic tools:

  • Code Reading: this tool reads the codes (DTC) and detects the issues.
  • Resetting Codes: particular diagnostic gadgets have advanced features. They can reset or completely clear the codes. However, take into account that clearing the codes will not fix the issue.
  • Graphical Display: modern tools have a screen that is able to show you graphics. This makes it easier to visualize the issue and give you exact instructions.
  • Additional Car Details: New devices not only give you instructions on how to use car diagnostic tool but also read extra details such as vehicle identification number, engine, and system check

Importance of Car Diagnostic Tools

Car diagnostic instruments are fundamental in contemporary auto maintenance and repair. Their significance arises from several essential advantages that improve the efficiency, safety, and general well-being of the vehicle and its owner. Here are some of the most essential reasons why the diagnostic equipment is necessary:

  1. Identifying Problems: Early detection of the issues may save a lot of money for owners. This diagnostic tool prevents causing extensive damage and also reduces overall repair costs.
  2. Accuracy In Diagnosis: The tool provides detailed and accurate information about the vehicle’s condition. Hence, if you know how to use diagnostic tool for car such as V310  and U480, you’ll have an accurate computer diagnosis.
  3. Accelerate Process: Diagnostic tools help to speed up troubleshooting. This minimize the repair time, allowing professionals to resolve issues faster. Consequently, mechanics work more efficiently, while an owner saves precious time.
  4. Monitoring Emission: With diagnostic devices, you can monitor emission-related data and make sure that your car complies with standards.
  5. Decision Making: After having the complete data, you will make informed decisions about future auto repairs and maintenance.

How To Use Car Diagnostic Tool

Vehicle diagnostic tools often work in the same way. Despite minor diferences, all of them use similar procedure that we must follow.

Step 1: Connect A Diagnostic Tool to your Car Dashboard

Your vehicle records all the issues while driving. The main goal of diagnostic tools is to get those trouble codes that show the data regarding the problems found in a car.

How to use diagnostic tool for car? First, Plug the device into the OBD port. If your vehicle has OBDII, the connector is usually located under the dashboard on the left side next to the steering wheel. The location may slightly differ from model to model. Then, turn on the vehicle – in most cases, starting the engine is not necessary.

Step 2: Enter Identification Details And Requested Data

Scanner tools may request a Vehicle Identification Number (VIN) or other car identification details. They might ask or a vehicle model or engine type.

As for the VIN, you can find this number on the windshiled or the front side of the automobile frame. 

Step 3:  Detect The OBD Code

Once you turn on the scanner, select the system for the full scan. it will display all the errors or you. Of course, the diagnostic tool show you the errors in codes. Every code has a specific meaning.

Step 4: Read the Car Codes

Diagnostic tools precisely identify the problem and transfer the information through codes. Interpreting the data is a key in how to use car diagnostic tool. Diagnostic tools include letters and numbers. Each of letter indicate a specific area of issue:

  • P – Powertrain (engine, transmission, fuel)
  • C – Chasis (suspension, steering, axles, brakes)
  • B – Body (airbags, ligts)
  • U – Network Communications (ignition, software, missing data)

As for the numbers, there are usually “1” and “2”:

  • 0 – Generic
  • 1 – Manufacturer-specific

Step 5: Identiying the Issue

Search online for the trouble code you received. A simple search with the code will give you the information you need from automotive and manufacturer websites.

Another way of reading codes is to use specialized software. Some third-party computer apps may read issue codes directly from a desktop or laptop after downloading them from the diagnostic tool.

Moreover, you can receive detailed information directly from the diagnostic tools. Several gadgets will display a code explanation on its screen. Of course, some tools provide more information than others, but you should have a general understanding of the issues described by the code.

If you want to be more precise and doesn’t have any doubt, you can always take your car to the professional and let them identify the code.

How To Use Diagnostic Tool For Car To Fix Automobile Problems?

After you get all the information, it is time to resolve the issues. How you handle the situation depends on the level of your skills. Either way, you will find out what are the most common methods in this process.

First, let’s discuss a scenario in which you have little mechanic skills or expertise. In this case, do-it-yourself (DIY) can be a perfect solution. The trouble codes and their descriptions will provide you with a solid starting point for determining and resolving difficulties without the assistance of a professional. However, it is crucial to remember that trouble-code warnings may indicate broken parts and signal other issues with internal components.

On the other hand, if you lack experience in car repair, it might be better to hire a professional mechanic. The auto expert will know how to use car diagnostic tool, and will have a device that will repair your vehicle faster. It’s right that hiring a professional is sometimes expensive, but it is worth the money you spend. At least you know the problem no longer exists, and you can drive your car safely. 

Use Diagnostic Tool For Car To Fix Automobile Problems

The Following Steps

Modern check engine light code scanners are capable of doing a few more vital jobs in addition to interpreting codes. One of those functions is the option to remove all logged issue codes, which you should do after trying to fix something. If the identical message appears later, you’ll recognise the issue hasn’t been resolved.

Once everything is ready and you have understood how to use diagnostic tool for car, you need to do an auto test drive. Check the vehicle’s performance and see if a can-bus system shows problems. Continue regular check-ups and follow the maintenance guidelines. You can use the diagnostic tool on a regular basis. This will increase overall performance and prevent unexpected malfunctions.

OBD Mileage Blocker

The mileage blocker is a modern device to address contemporary issues. This smart blocker was designed for testing and tuning purposes. The mileage blocker is the only tool that can effectively alter the mileage recording process. It does not store any information on the distance to the control units. Consequently, it is completely untraceable, and no scanner tool will identify the interference.

The mileage blockers from SuperKilometerFilter have unique features. It includes different modes, and you can choose your favourite one. More importantly, this device has a mobile application, and you can monitor the data from your smartphone and even change the modes while driving your car. If you think about the installation, don’t worry! The blocker from SKF includes easy DIY installation instructions, and you can assemble it yourself.

Moreover, the mileage blocker is suitable for almost every car model. Its premium materials guarantee that the tool will work flawlessly in any condition. This innovative and highly effective blocker is available online, and you can purchase the SKF product from the official website. For any additional information, please don’t hesitate to contact the customer service department or visit the company’s support page. 


How to use car diagnostic tool? You need to connect a reader device to your vehicle’s OBD port and start engine or turn on the ignition. Then, the diagnostic tool will interpret the problems into codes. You can look for the code explanations in the manual or search online for clarifications. If you have repair skills, you can try to fix it by yourself or ask a professional mechanic for help. Once you finish everything, do a test drive to make sure that your car works perfectly fine.

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