ELMScan Toyota (Demo Version) is an advanced Android application designed for automotive diagnostics, specifically for Toyota and Lexus models from various markets including America, Europe, and Japan. It allows users to connect their mobile devices to a vehicle's On Board Diagnostic (OBD) system using an ELM Bluetooth or WiFi adapter. The app supports various OBD-II protocols, enabling users to access a wide array of diagnostic functions and real-time data monitoring.

The demo version offers limited functionality, allowing users to read vehicle information such as model code, engine name, and VIN code, as well as view OBD-II parameters in real-time. However, it cannot perform active tests or clear diagnostic trouble codes (DTCs). The application supports multiple ECUs including engine, transmission, and SRS airbag, making it a versatile tool for vehicle diagnostics. It is important to note that certain ELM327 clones may not be compatible, which could lead to issues during usage.