Professional OBD2 Car Code Reader Automatic Diagnostic Tool What is the Automatic Diagnostic Tool of the OBD2 Auto Code Reader? A fast, accurate, and cost-effective scan tool for automotive engine systems. It can help the owner read and clear the error codes, monitor the engine system, and understand the exact meaning of the error code, meaning you can find the exact problem of the car engine and repair it, or you can use this device to test the car before sending it for smoke inspection to save time and money! EASY TO USE - Most Effective OBD2 Scanner Simply plug and play, no batteries required. The intuitive menu is designed for ease of use, and beginner DIY can be checked and repaired. Read/clear codes Live data EVAP test I/M readiness Freeze frame O2 sensor test On-board monitor test Vehicle information DTC search for DTC definitions Check engine light The OBD2 Car Code Reader can quickly and accurately figure out why the check engine light is on and help DIYers or mechanics locate or even fix the problem. Simply clear the codes after specific repairs, and the light will turn off automatically. I/M Readiness It can check the emission readiness status and driving cycle check. Additionally, a wealth of vehicle information is retrieved to learn everything about your car without issues for recording, vehicle tracking, purchasing the right parts, etc. Live Data Streaming Further analysis of the error code cause (i.e., diagnosing the error) requires a full real-time data stream. The more specific information available, the better you can understand where the problem lies. Freeze Frame Data Provides comprehensive data like important engine parameters, such as calculated load values, engine coolant temperature, intake manifold absolute pressure, vehicle RPM, intake air temperature, mass air flow sensor, engine RPM, etc. Extensive Coverage The OBD2 diagnostic tool works on most OBD2/EOBD-compliant vehicles, such as 1996 and newer US cars, 2000 and newer EU cars, and 2008 and newer Asian cars. However, it is not compatible with JOBD-compliant vehicles.