When DiagBox 9.xx was released, it created a major hurdle for users, particularly those with clone interfaces. This new software version required firmware on the VCI. The PSA Interface Checker became the go-to tool for managing this transition.
With the interface connected, you launched the PSA Interface Checker and followed these common steps: psa+interface+checker+440+2021
: Newer versions of DiagBox require the VCI to run firmware version 4.4.0 (or later) to communicate with modern vehicles. When DiagBox 9
If you need to update or downgrade your interface firmware: With the interface connected, you launched the PSA
So, what is the final verdict on the "psa+interface+checker+440+2021" keyword?
PSA Interface Checker 4.4.0 (2021) is a specialized diagnostic utility used by Peugeot and Citroën (PSA Group) technicians and DIY enthusiasts. It is designed to verify the firmware version of Diagbox interfaces and ensure compatibility between the hardware (Lexia 3 / XS Evolution) and the software (Diagbox). 🛠️ What is PSA Interface Checker 4.4.0?
Plug the Lexia/XS Evolution interface into your vehicle's OBD port (Pin 16 provides the necessary 12V power).