The PSA XS Evolution is the official diagnostic tool used by Citroën and Peugeot dealerships. It connects to the vehicle’s OBD2 port and interfaces with a computer running the software. Unlike generic ELM327 scanners, the XS Evolution allows for deep-level diagnostics, programming, and configuration of ECUs.
The driver for the XS Evolution interface is typically installed as part of the DiagBox software package, but manual intervention is often required for clone devices or newer Windows versions. PSA XS Evo driver help | Peugeot Forums psa xs evolution 9780z5 driver upd
If you are on Windows 10 or 11, you may need to boot into "Disable Driver Signature Enforcement" mode to install older, unsigned drivers. The PSA Agent: Most DiagBox installations include a folder named . Look for Driver PSA Evolution ACTIA USB Driver Manual Update: Device Manager Find the "Unknown Device" or "ACTIA USB Device." Right-click -> Update Driver Browse my computer Point it to the folder within your DiagBox installation directory. 3. Firmware vs. Drivers: The "PSA Checker" Sometimes the driver is fine, but the version on the adapter is too old. Version 4.3.2: This is the sweet spot for DiagBox 7.xx compatibility. PSA Interface Checker: The PSA XS Evolution is the official diagnostic
Regularly clean the OBDII pins to ensure a clean data signal. The driver for the XS Evolution interface is