20+ Years in Diagnostics
150+ Car Makes
10,000+ OBD2 DTCs
200,000+ Tools Sold
Vdiagtool Official
VDIAGTOOL VD80BT
VDIAGTOOL VD80BT Lite
VDIAGTOOL V500 Pro
VDIAGTOOL V210
VDIAGTOOL VD70S
VDIAGTOOL BT500
VDIAGTOOL VD10
VDIAGTOOL V210
Featured On
Latest Blogs
V200 Pro Mode II Not Working? Here’s the Fix and How It Works
V200 Pro Circuit Tester – Understanding Mode II and Cable Fault Detection Some V200 Pro users have questions about the display behavior and cable fault function when switching to Mode II. In this post, we’ll explain what happens, why it’s normal, and how to ensure your V200 Pro works correctly during wire tracing or breaker finding. 🔹 Why the Screen Turns Off in Mode II When you switch your V200 Pro Circuit Tester to Mode II, you may notice that the main screen turns off.Don’t worry — this is completely normal. In Mode II, the device is used for Wire Tracing or Breaker Finding, and during these operations, no numerical data or diagnostic values are displayed. Since the screen isn’t needed, the main unit automatically powers off the display to save energy and ensure stable signal detection. 🔹 How to Use the Wire Tracing Function Correctly • Attach the red and black clips to both ends of the wire you want to test.• Switch to Mode II to begin tracing.• Use the receiver probe to locate breaks or faults along the wire.• Following these steps ensures accurate detection and reduces interference during testing. 🔹 What to Do If the Breaker Finder Doesn’t Work If your Breaker Finder or Cable Fault function still doesn’t work as expected, you can you can refer to this detailed video guide — the last part of the video: If you’ve followed the steps and the function still fails to respond, the issue may be hardware-related. In that case, please record a short video showing how the device behaves during testing and send it to our support team. This will help our engineers analyze the issue accurately and offer the right solution quickly. 💡 Conclusion The V200 Pro is a powerful, intelligent circuit tester designed for professionals and DIY users alike.Understanding how each mode operates — Mode I/ Mode II — helps you get the most accurate results and prolong the lifespan of your device. If you encounter any issues, don’t hesitate to reach out to our support team.We’re here to help you make diagnostics simple and efficient.
Learn moreHow to Update Your BT300 Battery Tester Software
Regularly updating your VDIAGTOOL BT300 Battery Tester ensures you always enjoy the latest features, improved stability, and optimal performance. The update process is quick and straightforward — it only takes a few minutes using a Windows PC. In this guide, we’ll show you step by step how to safely and easily update your BT300 software to keep your device running smoothly. This function allows you to update the software of the tool. Requirements: • VDIAGTOOL B300 battery tester• Windows PC/laptop with USB ports• Included Type-C cable Important Notice: Before downloading the software update package, make sure to temporarily disable any firewall or antivirus software on your computer. After the download is complete, you may safely re-enable them. Download the Update Package • Visit our Techsupport official website: www.vdiagtool.com/support/downloads or reach out to us via service@vdiagtool.com or chat online with us.• Download the BT300 update package to your Windows computer.• Launch BT300.exe on your Windows computer. Update Steps Step 1: Press and hold down the "OK" key on the device while plugging the USB cable into the PC, until the green light is blinking. ⚠️ Important:First, press and hold the "OK" button on the device before connecting it to the computer. Step 2: Click "Update" to reset the memory and update the software to the newest. Step 3: When the software update is complete, you will hear a beep. Status Indicators • Yellow LED flashing → Updating in progress • Green LED on (3 sec) + 2 quick beeps → Update successful • Red LED + continuous 3-sec buzzer → Update failed Important Notes • Do not disconnect during update • Ensure stable power supply throughout the process Conclusion Updating your BT300 Battery Tester ensures you always benefit from the latest features, performance enhancements, and bug fixes. By following the simple steps above — downloading the update package, entering update mode, and completing the process on your PC — you can keep your device running at its best. If you experience any issues during the update or have additional questions, please don’t hesitate to contact our support team. We’re always ready to help you get the most out of your BT300 and ensure a smooth, reliable experience every time.
Learn moreTop Scan Tool for ECU Coding in 2025
What is ECU Coding ECU coding is an advanced calibration process that involves reprogramming and fine-tuning the software embedded within a vehicle’s Electronic Control Unit (ECU). By precisely adjusting parameters such as fuel injection, ignition timing, and air-fuel ratio, it ensures seamless coordination between engine systems—enhancing efficiency, power delivery, and driving dynamics. Why ECU Coding Matters for Your Vehicles ECU coding delivers a range of performance and efficiency benefits. It can significantly increase engine power and torque, resulting in faster acceleration and a more dynamic driving experience. Enhanced throttle response ensures smoother, more immediate reactions to driver inputs. By optimizing combustion parameters, ECU coding also improves fuel efficiency and reduces emissions. Moreover, it allows activation or deactivation of specific vehicle features, enabling personalized customization to match the driver’s preferences and driving style. VD80BT: Empowering You with ECU Programming Capabilities The VD80BT stands out as a premier solution for ECU coding and comprehensive vehicle diagnostics. Let’s explore what sets it apart in performance and capability. Technical Overview: Engineered for Excellence Powered by Android 10.0, the VDIAGTOOL VD80BT features a 1.5GHz quad-core processor, 4GB RAM, and 64GB ROM for smooth multitasking and rapid diagnostics. The vibrant 8-inch display with 1280x800 resolution provides clear visualization of diagnostic data, while dual-band 5GHz & 2.4GHz WiFi connectivity, 7.3V fast charging with long-lasting battery, and 33–66ft stable wireless connection—making it the most complete diagnostic solution you’ll ever own. The VD80BT offers advanced capabilities such as Topology Mapping, ECU Coding, Guided Functions, ECU Offline Programming, 4000+ Active Tests, All-System Diagnosis, and 42+ Maintenance Services, advanced ECU coding, PMI & V.A.G Guided. It also supports CAN FD/DoIP/ FCA AutoAuth, Pre/Post Scan, and Diagnostic Report V2.0, this car scanner covers over 10,000 vehicle models worldwide. ECU Coding and Beyond: Comprehensive Functions ECU Coding Made Simple and Smart The VD80BT supports both offline and online ECU coding, making programming more accessible and efficient. Offline coding allows you to configure or program an ECU without an internet connection—ideal for workshops in remote locations. Online coding, on the other hand, enables real-time updates and synchronization with the latest software from the vehicle manufacturer. For instance, if you replace a faulty ECU in a Volkswagen, the VD80BT can perform online coding to ensure seamless integration with the vehicle’s systems. This not only saves time but also eliminates the high costs often associated with dealership programming services. 42+ Special Functions for Every Diagnostic Need The VD80BT is equipped with 42+ specialized service functions designed to handle a wide range of repair and maintenance scenarios. Key features include FRM reset, VGT relearn for turbocharger calibration, HV battery detection, and A/C system relearn—each ensuring precise system performance. A diesel mechanic shared his experience: “As one of the best diesel diagnostic tools, the VD80BT’s DPF regeneration function has helped me resolve numerous particulate filter clogging issues with ease.” Additional essential functions such as Oil Reset, EPB (Electronic Parking Brake) service, and SAS (Steering Angle Sensor) calibration make the VD80BT a versatile and reliable companion for professional technicians. For more detailed information about the VD80BT, please visit our product page. Conclusion The VD80BT stands out as a professional-grade diagnostic and ECU coding tool, delivering both versatility and precision. Whether you’re a repair shop aiming to reduce ECU programming costs, an independent mechanic expanding your service capabilities, or an automotive enthusiast enhancing vehicle performance, the VD80BT offers a perfect balance of comprehensive functionality, robust performance, and intuitive operation. It empowers users to take full control of ECU coding and diagnostics—making advanced automotive coding more accessible than ever. In a market crowded with scan tools, the VD80BT truly distinguishes itself as a smart, powerful, and reliable investment for every professional in the automotive field.
Learn moreWhat Can the BT500 Do to Help You Test Your Car Battery
If your car struggles to start or the headlights appear unusually dim, it may be a sign that your battery needs attention. The car battery is a vital part of your vehicle, supplying the power needed to start the engine and operate all electrical systems. Over time, batteries can lose their ability to hold a charge, which can result in unexpected breakdowns. Learning how to test your car battery at home can save you money on repairs and prevent the frustration of being stranded. Introduction: Why Testing Your Car Battery Matters Your car’s battery is the heart of its electrical system, providing the power needed to start the engine and support all electronic components. When the battery weakens, even simple actions like turning on the headlights or starting the car can become difficult. Regular testing ensures your vehicle runs smoothly and safely every day. Ensures Reliable Starting Power A weak battery is one of the most common reasons a vehicle fails to start. By testing your battery regularly, you can identify a drop in voltage or capacity before it leads to a no-start situation. This simple habit helps you avoid unexpected breakdowns and keeps your vehicle ready to go whenever you are. Prevents Sudden Breakdowns Battery problems often occur without warning — especially in cold weather or after long periods of inactivity. Testing your car battery allows you to detect early signs of aging or internal damage, preventing the inconvenience of being stranded on the road or needing emergency assistance. Saves Maintenance Costs Routine battery testing can help extend the lifespan of your battery by catching charging or discharging issues early. A properly maintained battery reduces strain on your alternator and starter motor, helping you avoid unnecessary replacements and repair costs over time. Supports Vehicle Electronics Modern cars rely on a stable power supply to run complex electronic systems such as navigation, sensors, and onboard computers. A weak battery can cause these systems to malfunction or deliver inaccurate readings. Regular testing ensures that your vehicle’s electronics operate efficiently and reliably. Improves Energy Efficiency A well-performing battery allows your vehicle’s charging system to work more efficiently, reducing the alternator’s workload and lowering fuel consumption. This not only helps you save on fuel costs but also contributes to a more environmentally friendly driving experience. Regular battery testing helps prevent unexpected breakdowns and costly repairs. To get accurate, fast, and detailed insights into your battery’s condition, a professional battery tester like the BT500 makes all the difference. The BT500 Battery Tester Reliable, Fast, and Accurate Diagnostics VDIAGTOOL BT500 is a must-have for anyone needing reliable, fast, and accurate battery diagnostics. It ensures safe and precise results with over 99.99% accuracy, featuring reverse polarity protection and over-temperature protection for added safety. Wide Compatibility It’s compatible with 6V, 12V, and 24V batteries, including flooded, AGM, GEL, and EFB types, and works across a wide range of vehicles. Easy to Use The tool offers plug-and-play functionality with a 2.8-inch TFT HD display and visual LED indicators for quick battery health assessment Comprehensive Testing Capabilities It also doubles as a starter and alternator tester, performing cranking and charging tests for complete electrical system analysis. User-Friendly and Accessible The BT500 supports 12 languages, making it accessible worldwide. Whether you’re a professional technician or a DIY enthusiast, it’s an essential tool for maintaining your vehicle’s battery and electrical system. Final Thoughts The VDIAGTOOL BT500 has proven to be an indispensable companion in any garage or toolbox, offering confidence through accurate insight into your car battery’s true condition. As you store the tester away, you do so knowing that you’re always prepared for future diagnostics with ease and precision. Whether it’s a routine inspection or a troubleshooting task, the BT500 stands ready to deliver reliable and precise battery testing—ensuring your vehicle performs at its best. 👉 Purchase Now: VDIAGTOOL Official Store. Have more questions about our car battery tools? Contact us at service@vdiagtool.com — our team is ready to assist you!
Learn more
Shop With Confidence
Free Shipping
Fast & free shipping on all orders
Safe Payment
Easy and flexible checkout
30-Day Returns
Hassle-free returns within 30 days
24/7 Support
Round-the-clock support for you




