If you cannot locate a legitimate V3 download, these tools offer similar functionality:

Here’s a forum-style post you can use to share or inquire about . Adjust the details (link, credits, etc.) as needed.

If Diagbox fails to detect your car's VIN, a firmware mismatch is often the culprit. The Interface Checker allows you to sync the hardware to the software version.

However, if you are looking for a standalone , you must proceed with caution.

: It is a mandatory tool for DIY mechanics using PSA diagnostic software, but it acts more as a diagnostic for the tool rather than the car itself. If your cable isn't talking to your car, this is the first thing you should run. PSA interface tester - French Car Forum