: Reading and clearing fault codes across all ECUs (Engine, ABS, Airbag, BSI, etc.). Live Data : Monitoring real-time sensor parameters.
Look for an item with a yellow exclamation mark named , "Um98" , or "ACTIA USB Devices" . Right-click the device and select Update driver . Choose "Browse my computer for drivers" .
: Historically the most stable for older versions of Lexia and PP2000 (up to Diagbox v7.xx). Actia Psa Xs Evolution 9780.z5 Driver
: If standard drivers fail on Windows XP, check the Device Manager. Some users find success switching from the "UMDF" driver to the "Multi-instance" driver variant. 5. Identifying Genuine vs. Clone Hardware
Actia PSA XS Evolution 9780.Z5 Driver: The Ultimate Setup Guide : Reading and clearing fault codes across all
Navigate to > Advanced Options > Startup Settings > Restart .
| Symptom | Likely Fix | | :--- | :--- | | | No driver. Windows sees the chip but doesn't know what it is. Reinstall the driver. | | Yellow Triangle in Device Manager | Driver signature error. Reboot and disable signature enforcement again. | | Blinking Red/Green | Firmware missing. You need to run the PSA Firmware Tool (usually inside DiagBox). | | PC freezes when plugging in | USB 3.0 conflict. Use a USB 2.0 port or a powered USB hub. | Right-click the device and select Update driver
Verdict The Actia PSA XS Evolution 9780.z5 driver is a competent and dependable communication driver for the XS Evolution hardware, enabling professional-level diagnostics on PSA vehicles. While installation and driver-signing hurdles can frustrate less technical users, once properly set up it delivers stable connectivity, low latency, and the protocol breadth required for everything from basic troubleshooting to advanced calibration tasks — assuming the diagnostic host software provides those higher-level functions.
Note: If you have a signed modern driver (2020+), skip this. If you are using a legacy driver, follow this:
: Modern drivers (version 2.9.0.8 or newer) are compatible with Windows 10 and Windows 11 (x86/amd64) . Legacy versions of Lexia and PP2000 often require Windows XP or Windows 7 (32-bit) , frequently managed via virtual machines.
Command individual components (like cooling fans, EGR valves, and relays) to test their functionality.