Complete OBD2 Functions: Autel ML529 OBD2 code reader is characterized by complete OBD2 functions including O2 Sensor Test, Read/Clear DTCs, Live Data Stream, Freeze Frame Data etc. for Car Owners or Dyers to quickly address car emission problems AutoVin Function: Autel ML529 is the upgrated version of AL519, which adds advanced Auto VIN Function and Reading enhanced codes in Powertrain system for Ford, GM and Chrysler, so that the car repairing can be handled in a high-efficient way Enhanced OBD II MODE 6: Whats better than general code reader is that this OBD2 scanner ML529 is equipped advanced OBD2 Mode 6, to help Request On-Board Monitoring Test Results for Specific Monitored Systems and confirm quickly whether a problem currently exists and if the repair was successful or not Effective add-on Features: In order to better cater users needs, this car scan tool supports Data Printing Function for printing out recorded diagnostic data anytime, along with the Free Online