Actia Psa Interface Driver !exclusive! -

Check your Windows Device Manager . The interface should appear under "Universal Serial Bus controllers" or a dedicated ACTIA category.

Step 1: Disable Windows Driver Signature Enforcement (Windows 10/11) actia psa interface driver

There are two common scenarios:

The COM port number is above 4. Fix: Reassign to COM1 or COM2 as described above. Also, ensure no other software (e.g., Bluetooth, legacy modems) is using that COM port. Check your Windows Device Manager

If you’re using an to diagnose Peugeot, Citroën, DS, or Opel vehicles, installing the correct driver is essential. Without it, your PC won’t recognize the interface, and diagnostic software (like DiagBox, PP2000, or Lexia) won’t communicate with the vehicle. Fix: Reassign to COM1 or COM2 as described above

⚠️ Legacy versions of Lexia 3 and PP2000 contain 16-bit code blocks. They cannot run on 64-bit operating systems. If you are using a 64-bit Windows 10 or 11 laptop, you must run the software and drivers inside a 32-bit Virtual Machine (like VirtualBox or VMware) pre-configured with Windows 7. Step-by-Step Driver Installation Guide