1、Wide Compatibility: KONNWEI KDIAG Car OBDⅡ reader is specially designed to diagnose all systems of most 12V 16Pin V/A series vehicles, and can diagnose the engine system of 12V passenger cars and light trucks (non-electric or hybrid) manufactured in 2005 or manufactured in 2005 were later OBD II compliant with 16 pin OBD II protocols (J1850 VPM, J1850PWM, ISO9141, KWP 2000 and CAN). 2、Full System OBDⅡ Diagnostic Tool: The KONNWEI KDIAG car diagnostic tool is compatible with USA Europe Japan car and supports all system diagnostics, including engine light, ABS, transmission, SAS, ESP, TPMS and other systems. 3、Quick connection of whole Full system diagnosis : KDIAG Portable OBDⅡ BT scanner code reader can access the whole vehicle system, such as engine system, automatic transmission system, anti lock brake system, alarm system, airbag , electronic stability system, electronic parking system, body system, tire pressure detection, air conditioning system, door lock system, power window, keyless start module, navigation system, etc. 4、Complete OBDⅡ function: This scanner is also equipped with a complete OBDII function to quickly scan, read/erase fault codes, data streams, freezing needles, smoke tests, oxygen sensors, mode 6, ML status, vehicle information, one click generation and printing of reports, and DTC queries. Whether you are a personal user or a professional maintenance technician, you can operate quickly. 5、KDIAG support one-click AUTO-VIN or manual selection，The KDIAG will automatically find your vehicle’s VIN code and compared with its database to help you fast enter the diagnostic systems without selecting car models and year one by one. If it can’t identify the vehicle information, manual input and select is also available. You can also have quick access to 2 special functions from main page as below: Maintenance Reset and Battery Match.