You can find the software through community-maintained repositories and automotive diagnostic forums. Since this is a legacy tool often used with cloned hardware, official manufacturer links are generally unavailable.
A widely cited installation package including the checker and necessary drivers is available via Car Auto Repair . psa interface checker download link
Прога PSA Interface Checker — Сообщество - Drive2 It is primarily used to identify the device's
Displays the current firmware version (e.g., 4.3.2, 4.3.7, or 4.4.0). verify serial numbers
A direct installer can often be found on community-shared Google Drive links provided by enthusiasts.
The is a specialized diagnostic utility used by Peugeot and Citroën owners and technicians to manage the firmware of their Lexia-3 (XS Evolution) VCI (Vehicle Communication Interface) adapters. It is primarily used to identify the device's hardware revision, verify serial numbers, and update or restore firmware to ensure compatibility with Diagbox software. PSA Interface Checker Download Links
Specialized sites like Inova Autotech offer the tool as part of their J2534 compatibility validation kits. Key Functions of PSA Interface Checker
