Read and clear the code: Start the 3001 obd2 scan tool to read and clear the engine system DTCs. In addition, the 3001 built-in fault code definition search library was introduced. The Launch creader 3001 obd2 scanner works with most 1996 and newer OBDII compliant US vehicles (OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN). "Plug and Play" scanning tool with 2.5ft cable, made of very thick flexible insulation, perfect for beginners. I/M Readiness Test: You can use this obd2 scanner to check the status of your emissions related monitors, misfire systems and fuel systems, make sure your monitors are set up before introducing smoke, help you pass smoke checks easily and save you on fines. Check engine lights and identify VIN information: Turn off the MIL, if the faulty part is fixed, then clear the DTC and turn on the vehicle ignition, you will find that the check engine light does not come on. What's more, the launch creder 3001 obd2 scanner can read vehicle information such as VIN number. View Freeze Frame/Live Streaming/Oxygen Sensor/Evaporation System Test/Vehicle Monitoring Test:Launch 3001 is a practical and economical OBD2 full-featured car diagnostic tool, which supports reading real-time data of the engine system, quickly detects vehicle faults, and saves a repairman's trip.