To unlock expanded diagnostic functions (like J2534 programming) for your VDIAGTOOL D-Series scanner, you'll need to use a subscription code. This step-by-step guide walks you through buying, locating, and activating your code seamlessly.
Start by securing the subscription that matches your vehicle and D-Series model:
Either open the VDIAGTOOL App, navigate to the "Mall" section, or visit our official subscription page >> https://www.vdiagtool.com/function-stock
Choose your desired subscription (e.g., D200 All Special Function Unlock), click "Buy Now".

Review the Privacy Policy & Subscription Terms, check the agreement box, then click "Pay Now" to complete payment

After successful payment, your code will be delivered in 2 ways:


It is strongly recommended to log in to both the app and the official website using the same email address.
Follow these steps to link the code to your D-Series device:



Finally, confirm the subscription has been activated, and double-check the service's validity period
If you run into issues with purchase, code retrieval, or activation, contact our support team at Support@vdiagtool.com.
Wish you a smooth diagnostic journey! :)
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