PSA Interface Checker is a specialized utility used to identify the hardware version and serial number of a PSA vehicle communication interface (VCI), such as the Lexia 3 or XS Evolution. This tool is crucial for verifying if your interface is "Full Chip" or if it requires a firmware update to work with newer versions of 🛠️ Step 1: Download the Tool
folders of Diagbox installation packages, such as those found on French Car Forum 💻 Step 2: Installation and Setup Extract Files : If downloaded as a ZIP, use a tool like to extract the files to a known location, such as C:\PSA_Checker Connect Hardware psa interface checker download link
Installation: Run the PSA Interface Checker Install.exe to place the utility on your desktop. PSA Interface Checker is a specialized utility used
Firmware Recovery/Updating: Allows manual flashing of firmware files (appli.com). This is often used to "unbrick" clones that were accidentally updated online or to downgrade firmware for compatibility with older software like Lexia 3. Compatibility and Requirements Requirement Operating System This is often used to "unbrick" clones that
The Gateway: Access the PSA Interface Checker tool to determine if your hardware supports the latest firmware evolution (e.g., APPLI_963830B).
. If the serial number shows a "B" reference, the interface may need a firmware update to "Revision C" to communicate with modern CAN-bus vehicles. : To flash, select the appropriate firmware file using the Version Selected File button and click Download the Flash App