The OTC TPMS tool with wireless OBD-II dongle, No. 3838, can serve as a standalone TPMS tool with activation, relearn and diagnostic capabilities. The OBD-II module for TPMS sensor registration includes three years of software updates. The device reads diagnostic trouble codes from the TPMS module and the OBD-II module initiates and performs relearn procedures. It has infrared print capability and integrated key fob testing. With a 3.5" high-resolution display, an SD card stores vehicle history and software updates are completed via USB.