Click and navigate to the directory where your diagnostic software is installed. Common paths include: C:\AWRoot\bin\fi\INF\ C:\APPLIC\L3\INF\
| Item | Detail | |------|--------| | | Actia (official) or licensed clones | | Driver name | Actia PSA XSight Driver (or PSA XSight VCI ) | | Driver type | USB-to-CAN / USB-to-K-Line | | Compatible OS | Windows 7, 8, 10 (32/64-bit) – avoid Win11 for old versions | | Software that needs it | DiagBox, Lexia, PP2000, PSA SEDRE wiring, ServiceBox | | Driver file | ActiaPSADriverInstaller.exe or bundled with DiagBox |
You should see (or similar) without any yellow exclamation marks. Fixing "Interface Not Recognized" Issues (Troubleshooting)
What or device status do you see in the Device Manager? actia psa interface driver
The Actia PSA XS Evolution (often referred to as the Lexia 3 clone or genuine interface) bridges the gap between your laptop's USB port and the vehicle’s OBD2 port.
Windows does not natively recognize the Actia hardware as a diagnostic tool. Without the correct driver, the device will appear in Device Manager as an or under "Other devices" with a yellow exclamation mark . The driver performs three essential functions:
Many users struggle because their interface is "Revision B," while newer versions of Diagbox (v7.xx and v9.xx) require . Click and navigate to the directory where your
Do not download drivers from untrustworthy "driver download" websites. Many contain malware or corrupted INF files. Instead, use these verified sources:
If you need to narrow down a specific driver issue, let me know:
Connect the ACTIA unit to your PC via USB. (Do not connect it to the car yet). The Actia PSA XS Evolution (often referred to
The driver often works in tandem with the "PSA Interface Checker" tool, which allows you to update the hardware firmware to maintain compatibility with newer versions of DiagBox [1, 6]. OS Requirements: Historically, these drivers are most stable on Windows 7 (32-bit)
If using a modern 64-bit OS, many users run the drivers and DiagBox within a Virtual Machine (VM) running Windows 7 32-bit to avoid compatibility issues.
The standard user-mode driver for PSA interfaces.
It fixes the dreaded "Unknown Device" or yellow exclamation mark error in Windows. How to Install the Actia PSA Driver
This indicates a driver mismatch. Uninstall the current driver, restart the PC, and manually select the driver from the C:\AWRoot\bin\fi\Drivers directory (if Diagbox is already installed). Driver Signature Enforcement