If you’ve ever ventured into the world of Peugeot, Citroën, DS, or Opel diagnostics, you’ve almost certainly encountered the Actia PSA XS Evolution diagnostic interface. This VCI (Vehicle Communication Interface), bearing the reference number , is the official dealer-level tool for the PSA Group (now part of Stellantis), and it remains the industry standard for comprehensive diagnostics across Citroen, Peugeot, and other PSA‑platform vehicles. However, as experienced users know, getting this interface to work properly on a modern PC can be a daunting task. At the heart of this challenge lies the driver for the 9780.z5, a critical software component that enables your computer to communicate with the hardware.
Unlike generic USB-to-serial adapters, the Actia XS Evolution uses a unique hardware identifier: with a revision string often shortened to .z5 . This is not a standard Prolific or FTDI chip. Actia uses a proprietary implementation that requires signed drivers to function correctly on modern Windows OS (10 and 11).
The Actia PSA XS Evolution (9780.Z5) remains the gold standard for Peugeot and Citroën diagnostics. However, getting the driver to work on modern hardware can be a headache. Whether you are using Diagbox, Lexia 3, or PP2000, this guide will help you get your interface recognized and ready for coding. Why Your PC Isn’t Recognizing the 9780.Z5
Without the correct , your computer will either: Actia Psa Xs Evolution 9780.z5 Driver
Modern Diagbox (v7.57 and above) requires firmware.
Browse to your Diagbox installation directory. The drivers are typically located here: C:\APPLIC\LIMA\Driver\ or C:\AWRoot\bin\fi\Drivers\ Click and accept any warnings about unsigned drivers. Step 4: Verify Successful Installation
The 9780.Z5 refers to the specific hardware reference for the Actia XS Evolution interface. This tool acts as a bridge between a vehicle's OBD-II port and a technician's laptop. Unlike generic OBD-II scanners that only read basic engine codes, this interface supports full multiplexing for K-Line, CAN-BUS, and SAE J1850 protocols. Key capabilities include: If you’ve ever ventured into the world of
: Insufficient power distribution from the laptop's USB hub or a low-grade USB cable link.
You can temporarily disable Driver Signature Enforcement in Windows through the Advanced Startup menu, or run a command prompt as administrator to allow unsigned drivers. 3. USB Cable Quality
Upon first launch of Diagbox with the interface connected, the software may prompt to update the firmware inside the XS Evolution dongle. This is mandatory for the device to function correctly with that specific software version. At the heart of this challenge lies the driver for the 9780
Some technicians run two Actia interfaces simultaneously (for cloning ECUs). The 9780.z5 driver supports multi-VCI. Ensure you have checked in the driver’s advanced properties; otherwise, the second interface will throw a resource conflict.
This is an older, legacy board. It generally does not work with newer versions of DiagBox (v7.xx and above).