honestly I didn't understand it at first but someone posted it on one of those Facebook Infiniti sedan forms. The point supposedly is that it goes through to check the systems making sure most of the AC clutch, to cooling fan speed relays, high beams, low beam, fog lights, variable speed wipers and the rear defroster are all working, for not having blown fuses and relays; if you having a problem with something you can diagnose it and give you visible/audible feedback. From what I've also read all Infiniti dealerships and most Nissan dealerships we'll run this diagnostic first before connecting your vehicle to a scan tool. Lol and as someone else says it's also the Tesla party mode for Infiniti 😃
