Psa Interface Checker 440 Link
The is a specialized software tool designed specifically for "Full Chip" Lexia-3 (XS Evolution) interfaces. It is used to connect to the hardware interface, identify its revision (Revision B or C), and flash the firmware to ensure compatibility with modern DiagBox versions. Why is this Tool Necessary?
The is a lightweight utility tool designed to manage and diagnose the communication interface (VCI) used with DiagBox, the official diagnostic software for Stellantis group vehicles, including Peugeot, Citroën, DS, and Opel. Its primary functions include verifying the firmware version of your Lexia 3 or PP2000 interface, reflashing the interface to update its serial number, and forcing the installation of new drivers when Windows fails to recognize the device properly.
Look for repeated "state":"PROCESSING" without "state":"COMPLETED" or "state":"FAILED" . psa interface checker 440 link
If you need to update to 4.4.0 , click on the "flashing" option and select the corresponding firmware file provided in your package.
Set your multimeter to DC Volts.
If you need to upgrade or downgrade for a specific Diagbox build, click .
Mastering the PSA Interface Checker 440 Link: Firmware Management Guide The is a specialized software tool designed specifically
Disconnect your Lexia 3 interface from the vehicle's OBD port.




