Cause: USB power management is turning off the port. Fix: Go to Device Manager > Universal Serial Bus controllers > USB Root Hub > Properties > Power Management > Uncheck “Allow the computer to turn off this device.”
You might ask, "Why can’t I just plug and play?" The answer lies in the proprietary nature of the hardware. The 9780Z5 uses a specific FTDI (Future Technology Devices International) chipset or a licensed ACTIA custom chip. The driver performs three crucial functions:
Before you close this article, ensure the following are true:
Would you like help identifying the correct driver package for a genuine ACTIA PSA XS Evolution (e.g., version number or Windows error code)?
ACTIA PSA XS Evolution (9780.Z5) a professional-grade diagnostic interface used for Peugeot and Citroën vehicles, typically paired with
. To ensure the device functions correctly on modern operating systems like Windows 10 or 11, proper driver installation and firmware synchronization are required. Latest Driver Versions (2026)
For users operating on Windows 8, 10, or 11 (both 32-bit and 64-bit), the most recent stable drivers for the XS Family of devices are available through ACTIA IME Support Basic+ XS / CAT Level X Driver : Version 2.9.0.8. Lite XS Level X Driver : Version 2.9.0.0. Installation & Update Guide
The driver for the 9780.Z5 interface is often automatically managed by the diagnostic software (DiagBox) rather than a standalone installer, though manual updates may be necessary for connectivity issues. French Car Forum Automatic Firmware Sync
: When you launch a recent version of DiagBox (e.g., v7.40+), the software typically checks the connected VCI and automatically pushes the required firmware update (such as or higher) to the device. Manual Driver Installation Disconnect the VCI from your computer. Download the latest Level X driver from the ACTIA Support Portal Run the installer with Administrator rights actia psa xs evolution 9780z5 driver upd
Connect the interface; Windows should now recognize it as an "ACTIA USB Devices" or "PSA XS Evolution" entry in the Device Manager. Interface Checker Utility
: To verify your current firmware and serial number, use the PSA Interface Checker
tool. This is critical for "cloned" devices, which may require specific firmware versions (like ) to remain compatible with DiagBox. Key Compatibility Notes Support - ACTIA IME
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
Maintaining your Actia PSA XS Evolution (9780.Z5) interface is crucial for successful vehicle diagnostics on Peugeot and Citroën cars. Since this hardware serves as the bridge between your laptop and the vehicle's ECU, the driver is the most vital component.
This guide covers everything you need to know about finding, installing, and updating your 9780.Z5 drivers to ensure seamless communication with Diagbox, Lexia 3, and PP2000. The Role of the 9780.Z5 Driver
The Actia PSA XS Evolution is a complex multiplexer. Without the correct driver update, you will likely encounter the "Interface Not Connected" error in Diagbox. The driver allows Windows to recognize the USB device as a "Multi-instance" hardware component, specifically mapped for PSA diagnostic protocols. Step 1: Verify Hardware Compatibility
Before updating, ensure your hardware is capable of supporting the latest driver versions. Cause: USB power management is turning off the port
Check the Serial: Genuine or high-quality Revision C clones are preferred.
Firmware Version: Your firmware version (e.g., 4.3.0 or higher) must match the driver generation.
Connection: Always use a direct USB port; avoid using USB hubs which can drop data packets. Step 2: Where to Download the Update
The driver is rarely a standalone download from Actia for end-users. Instead, it is typically bundled with Diagbox software updates. Diagbox Root Folder: Look in C:\AWROOT\bin\fi\APPDIAG.SYS.
Drivers Folder: Check C:\APPLIC\LEXIA\EXE or the installation media for a folder named "Drivers" or "USB."
Device Manager: The hardware should appear under "Universal Serial Bus controllers" as "ACTIA USB Devices." Step 3: Clean Installation Procedure
If your driver is outdated or corrupted, follow these steps for a clean update: Disconnect the interface from your PC.
Uninstall the old driver via Device Manager (check "Delete the driver software for this device"). Restart your computer. The driver performs three crucial functions: Before you
Run the Driver Setup (often named PSA_XS_Evolution_Driver_Setup.exe).
Plug in the Interface. Windows should now identify it automatically. Step 4: Troubleshooting Common Issues
Code 10 Error: This usually means the driver is incompatible with your version of Windows (e.g., trying to run 32-bit drivers on a 64-bit system).
Unknown Device: If Windows sees an "Unknown Device," the USB cable or the internal solder points on the 9780.Z5 unit may be faulty.
Driver Signature Enforcement: On Windows 10 or 11, you may need to disable "Driver Signature Enforcement" to allow the diagnostic drivers to initialize properly. Comparison: Official vs. Clone Drivers Official 9780.Z5 High-Quality Clone Stability Moderate to High Diagbox v9+ Support Requires Rev C Firmware Driver Source Actia / PSA Community Patches Windows 10/11 Requires Manual Setup Final Tips for Success
Use a Dedicated Laptop: Diagnostic software often conflicts with antivirus or other brand tools (like VCDS or Renault CLIP).
Keep Firmware Synced: If you update Diagbox to a newer version (like v9.129), use the "Interface Checker" tool to ensure your 9780.Z5 firmware matches the new driver requirements.
What Windows operating system (7, 10, or 11) is on your laptop?
Are you getting a specific error code when you plug the device in?
Knowing these details will help me provide the exact setup file or firmware fix you need.