D501

VDIAGTOOL D501 is a specialized full-system diagnostic scanner engineered for GM vehicles, including Buick, Chevrolet, Cadillac, and GMC.

With full ECU coverage — from engine, transmission, ABS, SRS, BCM and more. It offers deep diagnostics, fast scanning, advanced fault-code reading and clearing, and rich live data streams.

Whether you’re a workshop technician or GM vehicle owner, the D501 provides the reliability and performance needed for accurate vehicle health analysis.

Turn your smartphone into a professional diagnostic station. Your Complete OBD2 Toolkit provides a full suite of diagnostic capabilities for any OBD2-compatible vehicle.

From reading and clearing fault codes to viewing live data and running emissions readiness tests, D501 is designed to help both DIY users and professionals quickly diagnose vehicle issues and ensure optimal engine performance.

Bi-Directional Control enables deep-level diagnostics by allowing the tool to send commands to a vehicle's ECUs.

You can activate components such as ABS pumps, fans, injectors, windows, door locks, solenoids, valves, and more to verify their working condition.

This powerful function helps technicians pinpoint issues faster and avoid unnecessary part replacements.

This diagnostic tool supports 28+ GM-specific special functions, offering deep-level maintenance capabilities across Buick, Chevrolet, Cadillac and GMC models.

Perform essential resets, module relearns, adaptations, calibrations, battery matching, steering angle resets, injector coding, ABS bleeding, TPMS relearn, and more.

The device supports J2534 pass-thru programming, enabling professional-level ECU reprogramming and module updates for GM vehicles.

To use J2534 programming, you will need:

•VDIAGTOOL D501 hardware device

•A Windows 10 or later PC/Laptop

•VDIAGTOOL J2534 Driver Software

>>Support - Tools & Manuals - J2534 Device Driver

•Official OEM diagnostic software for the vehicle brand

Once these tools are prepared, the D501 can operate as a J2534 pass-thru device, enabling the PC to communicate with the vehicle for software updates, programming, and module configuration.

Start with Auto Scan, where the tool instantly runs a full-system sweep across your entire vehicle engine, ABS, SRS, and transmission, giving you a clear picture of your car’s condition in seconds.

The Vehicle Performance Test provides real-world insights into acceleration, fuel efficiency, engine load, voltage stability, and more—helping you understand your car’s true driving behavior.

With Live Data Graphing, every critical parameter comes to life in real time. Watch sensor values, temperatures, fuel trims, and RPM curves displayed in clean, easy-to-read charts.

And when it’s time to share or save your findings, the Diagnostic Report Sharing feature allows you to generate professional-grade reports in seconds.

With the Function Mall, you can easily expand your scanner anytime by adding new service functions. The DTC Lookup feature helps you decode trouble codes instantly with clear explanations.

Function Mall >>  https://www.vdiagtool.com/function-stock

When warning lights appear on the dashboard, Indicator Lights Info gives you quick, easy-to-understand guidance on what each symbol means, helping you react confidently and safely. And before you start any diagnosis, Vehicle Compatibility allows you to check if your car is fully supported. Together, these intelligent functions create a seamless, user-friendly diagnostic ecosystem that empowers you to diagnose smarter, repair faster.

Step 1: Download and install the VDIAGTOOL app.

Step 2: Open the app and register.

Step 3: Scan the QR code on the back of the device to activate it.

Step 4: Plug the device into the vehicle's OBD port and enable diagnostics in the app.

New update: VDIAGTOOL App V1.1.8 is now available. Support searched & horizontal-view live data streams. Update in App with one click.

The packing list includes:

•Package Box

•D501 VCI Unit

•Type-C Cable

•Type-C to Type-A Adapter

•Multilingual User Manual

•Tool Kit