Actia Psa Interface Driver Guide

Uninstall the device from Device Manager, delete the driver software checkbox, reboot with signature enforcement disabled, and point manually to the AWRoot folder.

High-quality aftermarket interfaces featuring the correct NEC optocouplers and AN2131QC chips.

An outdated or mismatched firmware version on your Actia interface will trigger "Connection Error" or "Device Not Connected" faults in Diagbox, even if the Windows driver is perfectly installed.

The Actia PSA interface acts as a translator between your vehicle’s OBD2 port and your laptop’s USB port. It is primarily used with OEM-level diagnostic software suites:

Right-click the unknown device in Device Manager -> Select Update Driver -> Browse my computer for drivers . Point the search path directly to the Diagbox installation directory (usually C:\AWRoot\bin\fi\ drivers or C:\APPLIC\L3\Driver ). Issue 2: Driver is Blocked Due to Missing Digital Signature actia psa interface driver

Hold the Shift key while clicking in the Windows Start Menu.

To manage the interface firmware, professionals use a tool called (InterfaceChecker.exe).

Click and navigate to the directory where your diagnostic software is installed. Common paths include: C:\AWRoot\bin\fi\INF\ C:\APPLIC\L3\INF\

Complete Guide to Actia PSA Interface Drivers: Installation, Troubleshooting, and Lexia/DiagBox Setup Uninstall the device from Device Manager, delete the

A: This is a common issue with older drivers. First, ensure you are running the installer as Administrator . If it still fails, use the manual installation method described in Part 3, pointing Windows to the driver folder (like C:\AWROOT\EXTRA\DRIVERS ). The necessary 64-bit driver files are often present in these folders even if the installer claims it is 32-bit only.

If your device shows a yellow triangle or says "Unknown Device," you must force Windows to locate the driver files.

Requires signed drivers or "Disable Driver Signature Enforcement" to be active during installation. Most modern versions of Diagbox (v7.83 and above) include a 64-bit driver patch, but manual intervention is often required. 3. How to Install the Actia PSA Interface Driver Step 1: Install the Main Software First

| Interface version | Typical driver | Notes | |------------------|----------------|-------| | | ACTIA D-PDU driver | Works with DiagBox, PP2000, Lexia, and generic J2534 apps | | Clone / Chinese “ACTIA” | Often modified or older driver (e.g., version 2.18 or 2.24) | May require specific driver + firmware combo; standard D-PDU driver might not work | The Actia PSA interface acts as a translator

Right-click the problematic device and select . Choose "Browse my computer for drivers" .

Run the Diagbox installation executable as an Administrator.

XS FAMILY. Basic+ XS / CAT Level X driver | Version 2.9.0.8, for Windows 8 (x86/amd64) | Windows 10 (x84/amd64) | Windows 11 (x86/ Genuine Actia XS not found - French Car Forum