OBD2 scanner diagnostic tool Functions & features: 1. Read and erase fault code from engine, find out failure reason for check engine light coming on. 2. Turns off Check Engine Light (MIL), warning light, clears codes and resets monitors 3. Directly show definition of OBDII Codes, without check online. 4. Displays monitor and I/M readiness status (emission status) 5. Reads and display live PCM data stream, live sensor readings, up to 50 PID/S, and show it in graphical mode. 6. Views freeze frame data to analyze the real cause of engine failures 7. Displays live O2 oxygen sensor test data 8. Enhanced OBD2 Mode 6 On Board Monitoring Test Results for Specific Monitored Systems. 9. EVAP System test data 10. Retrieves vehicle information (VIN code, CIN and CVN Number) 11. 12V car battery status check, compare with user manual to verify if your battery need to be replacement. 12. Data stream storage, and playback even off vehicles.