







The Konnwei KDIAG is a compact Bluetooth diagnostic tool that turns your smartphone into a powerful full-system scan tool. Designed for both DIY users and workshops, it provides access to multiple vehicle systems, live data, and essential service functions through an easy-to-use mobile app on iOS and Android.
With support for over 40 vehicle brands and fast Bluetooth 5.0 connectivity, the KDIAG offers a flexible and affordable way to carry out diagnostics without the need for a dedicated handheld unit.
Full-System Diagnostics
The KDIAG provides access to a wide range of vehicle systems for accurate fault diagnosis.
• Read and clear fault codes across engine, ABS, transmission, SAS, ESP, TPMS, and more
• Full system scanning across supported modules
• Live data streaming with graphing support
• Freeze frame data capture for fault analysis
• Auto VIN detection for fast vehicle identification
Service & Maintenance Functions
The KDIAG includes a range of commonly used reset and maintenance features.
• Oil service reset
• Electronic parking brake (EPB) release
• Throttle position reset (TPS)
• DPF regeneration
• Injector coding
Function availability varies by vehicle.
App-Based Operation
The KDIAG is designed to work seamlessly with your smartphone or tablet.
• Bluetooth 5.0 connection for fast and stable communication
• Works with both iOS and Android devices
• Dedicated KDIAG app available via App Store and Google Play
• Simple interface suitable for both beginners and experienced users
Live Data & Reporting
The mobile app provides clear and useful diagnostic information.
• Real-time data including RPM, speed, and sensor readings
• Graphing for easier analysis
• Vehicle health reports generated within the app
• Share reports directly from your device
Vehicle Compatibility
The KDIAG supports over 40 vehicle brands across multiple regions.
American:
GM, Ford, Chevrolet, Buick, Cadillac, GMC, Lincoln, Hummer, Mercury, Saturn, Pontiac
European:
Mercedes-Benz, BMW, Audi, Volkswagen, Skoda, Seat, Mini
Japanese:
Acura, Honda, Toyota, Lexus, Nissan, Infiniti, Mazda, Suzuki, Subaru, Mitsubishi
Luxury:
Maybach, Bentley, Lamborghini, Bugatti, Rolls-Royce
Free Lifetime Updates
Software updates are managed through the app and are free for life, ensuring continued compatibility with new vehicles and expanded functionality over time.
Why Choose the Konnwei KDIAG?
The KDIAG is a simple and effective solution for users who want full-system diagnostics without investing in a dedicated scan tool. With smartphone integration, wide vehicle coverage, and essential service functions, it offers excellent value for both home users and light workshop use. Compact, wireless, and easy to operate, it is a practical addition to any diagnostic setup.