Psa Interface Checker 4.4.0 Jun 2026

PSA Interface Checker is a utility software developed by PSA Groupe (now Stellantis) to test, configure, and validate communication between a PC and a vehicle’s diagnostic interface (commonly known as the “Full Chip” or “Clone” interface, as well as OEM VCI units). Version represents a significant milestone, offering enhanced stability, broader ECU coverage, and improved compatibility with the latest DiagBox and PP2000 software suites.

— Does exactly what it promises for PSA interface testing, but feels dated and lacks broader utility. Essential for PSA-focused workshops; irrelevant otherwise. psa interface checker 4.4.0

You are attempting to upgrade a "Revision B" clone to a "Revision C" to unlock functions for newer car models like the Peugeot 308 or Citroen C5. Usage Steps Connect Device: PSA Interface Checker is a utility software developed

Overview

PSA Interface Checker 4.4.0 is a utility program used to manage and update the firmware of the Lexia 3 (VCI) diagnostic interface Essential for PSA-focused workshops; irrelevant otherwise