Advanced, complex sensing and electronic control achieve automobile running, safety, and environmental performance, but their malfunctions can lead to accidents. This product is a tool for checking for malfunctions of parts at the dealership or repair shop and for identifying their causes. This tool is the first in Japan to support troubleshooting for next-generation vehicles that have self-driving functions. It contributes to safe, secure automated driving. The drastic size reduction and cable-less vehicle connectivity makes one-hand operation possible, greatly increasing usability.