Can you give a little background on the problem, how long it has been sitting before this happened would be good, anything else like that. Yeah I think this is a 722.6 trans so the shifter module could cause a no-start if the TCM doesn't think you are neutral, the NSS is part of the shift lever. Never heard of a code like that, you got any codes in engine management, that must be a trans code. I assume the idiot lights are coming on, just no crank? Will it shift out of park if you turn the key on and step on the brake? If so try starting in neutral. The shifter never got wet recently did it? Rain, coffee, soda??? Any borrow the car who might have dumped something on the shifter? This is famous for happening, the shifter hates strange drivers and sucks on their drinks I guess
Gilly