While the “PSA Interface Checker” is a useful diagnostic aid, . The safest approach is to obtain it as part of a legitimate diagnostic hardware kit or through professional channels. If you already have DiagBox installed, check your existing program files before searching online.
Avoid standalone downloads from unverified sources. Instead, use the integrated VCI test functions within your diagnostic software or contact your VCI supplier for the official utility.
: Instantly check if your interface is recognized and identify its current firmware version (e.g., V4.3.0).
PSA does not offer the Interface Checker as a standalone public download for home users. Most online downloads come from unofficial sources. These files may contain:
The PSA Interface Checker is rarely hosted on an official website for public download. It is typically bundled inside the .
Identifies the current firmware version and hardware revision (e.g., Revision B or C) of your interface.
The is a diagnostic software utility developed by Stellantis (formerly PSA Group, including Peugeot, Citroën, DS, Opel, and Vauxhall). Its primary function is to verify the communication, driver installation, and firmware status of third-party VCI (Vehicle Communication Interface) units—specifically the PSA XS Evolution or DiagBox interfaces—when connected to a Windows-based PC.
Before running any downloaded PSA_Interface_Checker.exe or similar:
: Update your VCI firmware to match specific DiagBox requirements, which is often necessary when upgrading software versions.
: Test the communication between your PC and the VCI before connecting it to a vehicle. Download and Installation Sources
Usually named PSA Interface Checker.exe or found in a folder named Checker within the Diagbox install directory.