OBD2UDS - Car Diagnostic Pro

OBD2UDS is a car diagnostic app for drivers, DIY repair users and mechanics who want more than a basic check engine code reader. Connect a compatible ELM327 Bluetooth OBD2 adapter and turn your phone into an OBD2 scanner, live data dashboard and advanced UDS diagnostic tool for supported vehicles. Main diagnostic features - Read and clear engine fault codes - View freeze frame and live sensor data - Monitor RPM, coolant temperature, speed, engine load, fuel trims and more - Check I/M readiness before an emissions test or smog check - Use Mode 06 data to find misfires, sensor issues and borderline test results - Capture oxygen sensor voltage waveforms to help check catalytic converter performance - Read vehicle and ECU information, including VIN when supported Advanced UDS diagnostics For supported vehicles and control modules, OBD2UDS can go beyond standard engine OBD2: - Full system scan for supported ECUs - ABS, SRS airbag, transmission and powertrain checks when available - Deeper diagnostic trouble code context - One-tap AI-ready diagnostic prompt with vehicle data and fault code details Live data and test tools Build a real-time dashboard for the values you care about during a road test, repair check or used car inspection. OBD2UDS also includes acceleration testing, battery voltage and cranking drop checks, fuel and energy monitoring, cabin noise monitoring and annual inspection pre-check tools. Useful for - Check engine light diagnosis - Used car inspection before buying - Emissions readiness and smog check preparation - DIY maintenance and repair - Live data logging during road tests - Quick mobile diagnostics in the workshop OBD2UDS works with common ELM327 Bluetooth OBD2 adapters. Available functions depend on your vehicle, adapter quality, protocol support and selected ECU module. Use a reliable adapter and keep the ignition on while scanning. PID tracking and saved records - Record multiple sensors together, review charts and history, and export CSV files. - Save fuel collection records, review their history, and export CSV files. - Save diagnostic reports and review them later. - Set up dashboards and PIDs before connecting; vehicle support is checked after connection. - View partial results if a test is interrupted. Sign-in is required to start recording and view history. Some professional tools require Premium. Not all vehicles or PIDs are supported. Download OBD2UDS for practical OBD2 diagnostics, live data monitoring and advanced UDS scanning on Android.