The pp2000/lexia-3 interface is a diagnostic tool compatible with both Citroen and Peugeot vehicles, allowing for comprehensive OBD-II diagnostics, programming, and fault code management since 1995. It features the latest software versions which support a wide range of models and diagnostic functions including live data display, actuator testing, and programming adaptations. The tool requires specific software and hardware requirements and is designed for dealer-level diagnostics, with multilingual support available.