Instantly displays the currently active firmware version (e.g., Version 4.3.7).

Look at the text output. If it reads 921815 C/ or shows "Inconnue" (Unknown) followed by a version number, your tool is successfully communicating. Revision "C" is required for newer versions of Diagbox (V7.xx and V9.xx). Step 4: Flash New Firmware (Optional)

Using the PSA Interface Checker allows you to manually control the firmware version, disable automatic updates within Diagbox, and ensure seamless communication without risking hardware corruption. Features of the Utility

Always run downloaded files through an updated antivirus scanner or an online aggregator like VirusTotal before running them.

The PSA Interface Checker boasts an impressive array of features that make it an indispensable tool in your software toolkit:

and connect your VCI to the computer via USB (vehicle connection is not required). Identification : Launch the program and click

The PSA Interface Checker is an essential diagnostic utility for automotive technicians and DIY mechanics working with Peugeot and Citroën vehicles. This tool verifies the firmware version of your Lexia 3 (PP2000) or Diagbox hardware interface, ensuring compatibility with evolution software updates.

Plug your Lexia 3 interface into a USB port on your PC. Wait for Windows to recognize the device (usually under Device Manager as ACTIA USB Devices ).

Instantly see if your interface is recognized as a Revision B or the highly sought-after Revision C.

Updating the hardware revision is often necessary for compatibility with newer versions of the diagnostic suite. Preparation : Install the PSA Interface Checker

🔗 [No direct link provided – security risk. Instead, I recommend visiting the forums above; they are trusted by diagnostic professionals.]