Actia Psa Interface Driver (2025)

The Actia PSA interface drivers are bundled directly inside the Diagbox installation package. Run the Diagbox setup executable as an .

To ensure your interface is ready for diagnostics, verify its status in Device Manager and check its firmware version. Device Manager Check

If your firmware is too old, the PSA Interface Checker can be used to flash a new version. Click "Activate," select the appropriate firmware file (often bundled in the DiagBox installation), and follow the prompts.

Click and browse to your Diagbox installation directory. The standard path is usually: C:\AWROOT\bin\fi\APPDIAG.SYS\ or C:\APPLIC\LEXIA\EXE\ actia psa interface driver

What (including 32-bit or 64-bit) is installed on your laptop? Is your interface a "Full Chip" clone or an original unit? Share public link

Enabling features that were "hidden" or not activated from the factory (e.g., fog lights, AUX ports) [5]. download link

A major revision in this driver family is the one associated with DiagBox version 9.x. This newer driver is necessary for the ACTIA Core XS VCI and for full compatibility with the Firefox 102 ESR engine that powers the modern DiagBox interface. The Actia PSA interface drivers are bundled directly

There is a common misconception that newer is always better when it comes to the ACTIA PSA interface. This is not true.

Separate drivers for various ACTIA families (e.g., XS Family, Basic+ XS, Lite XS) are available for manual download from the official ACTIA IME Support Page for systems running Windows 8, 10, or 11. 2. Hardware Identification: Original vs. Clone

Step 1: Disable Windows Driver Signature Enforcement (Windows 10/11) Device Manager Check If your firmware is too

Actia PSA Interface Driver: The Complete Installation and Troubleshooting Guide

Modify the MAJ.INI configuration file in your DiagBox folder ( C:\AWRoot\bin\fi\ ) changing Version=TRUE to Version=FALSE . This stops the software from overwriting your working interface firmware with versions that might lock a clone chip.

Ultimate Guide to Actia PSA Interface Drivers: Installation, Troubleshooting, and Setup

Windows does not natively recognize proprietary automotive hardware. Installing the specific Actia driver ensures seamless communication.