Psa Interface — Checker 4.4.0

PSA Interface Checker 4.4.0

The is an indispensable utility for automotive technicians and enthusiasts working with Peugeot and Citroën vehicles. It primarily serves as a firmware management and diagnostic tool for the Lexia 3 XS Evolution interface, ensuring compatibility between the hardware and software like Diagbox, Lexia, and PP2000. Core Functions of PSA Interface Checker 4.4.0

Прога PSA Interface Checker — Сообщество - Drive2

Stability & Performance

7. Limitations (as of 4.4.0)

Key Features (organized)

• Windows 7 (64-bit), Windows 10 LTSC, or Windows 11 (with driver signature enforcement disabled for clone interfaces).
• At least 200 MB free disk space.
• A known-working USB 2.0 port (USB 3.0 hubs often cause phase shifts).

• CONTRACT – Schema mismatch (e.g., missing required field projectId).
• AUTH – Token missing, expired, or insufficient scope.
• THROTTLE – 429 responses or rate limit warnings.
• TIMEOUT – Endpoint exceeds configured threshold (default 5s).
• DEPENDENCY – Upstream required endpoint failed.