Regarding codes on the TCM, they tried pulling them both times and found none (so they told me).
Regarding how the gear selector is connected to the transmission, I suspected it was drive-by-wire. Seemed kinda silly to me to run cables to something that was just going to twiddle a switch anyway. My Volvo runs a cable to the gear position switch, and I always thought that was kinda of dumb--put the switch closer in, and just run the wires to the controller. Anyway...
Is there any place I can read up on the theory-of-operation on this transmission combo? I've turned several wrenches back before I had kids and a house, and am a computer engineer by training and trade, so it's not beyond me to dig in and get my hands dirty. I've even contemplated buying a code reader (
http://www.odb-2.com) so I could check codes myself, but wasn't sure how much information I'd get from the standard OBD-II codes, and whether I'd need the actual nissan codes in order to gain useful info.
Finally, that is the DUMBEST system of remuneration I've ever heard of. Are you seriously telling me that if the tech doesn't find the problem, you don't get paid?! Plus, if you were to take the time to fault-trace my problem and it turned out to be something that was a 1h book time, you'd only get paid for 1h as opposed to however long it took you to deal with it? That is some kind of backwards-assed system, and explains a lot. It also makes me like Nissan corporate even less (as if Consumer Affairs wasn't doing a good enough job at souring me already).
I suppose that sort of system makes a twisted kind of sense for established vehicles. But it makes little sense for first-run models, where hard-to-find problems are going to be more common. The system you have in place now just encourages the factory to let problems come out and let techs find them--because it's cheaper. Maybe on first-year vehicles they should have a special way to charge back work of techs debugging issues that the factory should have found in the first place. (And I won't hold my breath for that to happen.)
At one point when I was having one of my other intermittent problems (no radio volume), I offered to help them debug the problem if they could give me a manual set. "No", said Consumer Affairs. "That would open up a whole set of liability issues." "Okay," I said. "How about giving me $250 so I can buy the manuals myself?" "No, we can't do that."
Argh!
PS Sounds like, based on the compensation model they've got set up for you, me bringing a pizza or leaving a cold case of brew or something like that on the seat for the tech that traces down the problem might not be unwelcome whatsoever.