Autel ML529HD OBD2 Code Scanner (Upgraded Version of ML519) with Enhanced Mode 6/One-Key Ready Test for Heavy-Duty J1939 & J1708 10 MODES OF OBDII: Live data, freeze frame data of this diagnostic tool are effective to get quick & precise test results of your vehicle health status. Moreover, I/M Readiness, O2 sensor test and On-board monitor test are great for passing the emission test smoothly. UPGRADED ML519: Compared with ML519, this code reader uses AutoVIN technology that is a set of latest manufacturing standards. It reduces the omissions, eliminates the manufacturing defects and processes the data at a faster speed. ENHANCED MODE 6: The scanner features the enhanced mode 6 access to read the definition of an On-Board Diagnostic Monitor ID, along with enhanced reading codes in Powertrain system for Ford, GM and Chrysler, for offering better insight into your car. VEHICLES COMPATIBLE: This diagnostic scan tool has been found to cover both diesel (J1939 and J1708) and gasoline vehicles which are OBDII protocol compliant. The enhanced compatibility of this scan tool makes it a solid choice for every DIYers and mechanics. WARRANTY & UPDATE: The Autel ML529HD carries a complete 12-month guarantee from the date of sale provided from Autel Headquarters in China, with free lifetime software update, to ensure it is reliable for your daily diagnostic work.