The iCarsoft Bluetooth Multi-Scan Tool, No. i620, supports all OBD-II protocols. The wireless device offers a switch power-saving mode, high-speed read data and real J1939 protocol for heavy duty vehicles. The tool reads generic and manufacturer-specific Diagnostic Trouble Codes (DTCs) and displays their meanings. It also can clear trouble codes and turn off the MIL (check engine light) among many other functions. Software is included for various mobile devices, Windows PC and Windows smartphones.