While cranking dose your scan tool have a reading for pos count, if not it won’t start.
Usually you don’t have a good ground from trans to engine. Try making a ground loop wire, and pulling out a trans bolt that has a nut and bolt (bottom) a 3 inch long wire about 10 gauge with an eyelet on each end. Install wire loop with one end on engine side and one on trans side. As soon as you start cranking you should have a poss count, when you see that it starts. Paul. 25 yr Nissan master tech.