Main function 1.Read out trouble code, erase trouble code. 2.Data stream. 3.Drawing data stream curve. 4.System settings. 5.Control unit programming. 6.Selftest interior status of ic. 7.Record and re-display. 8.Bidirectional control function ¿c read out responsed data under drive actuation components. Accessories 1.Him module with obd ii cable. 2.Hds software dvd. 3.3-pin cable. 4.220v power supply. 5.Rs232 cable. 6.Obdii selftest adapter. 7.Storage case. Standard shringking.