^^^
Unfortunately, it has caused me a new problem.
The TCU now is effectively non-functional.
I probably don't have time to take care of it until Friday or another week. I'm busy w/other things + work.
Unfortunately, a post from the famed Leaf tech in the PNW awhile ago said "it is set as a TSB so would be out of warranty in some circumstances." My dealer had to charge me $85 for 1/2 hour of tech time. The SA also checked w/his manager about this. He suggested I take it up with Nissan corporate, to try to get my $ back. I told him it seemed pretty unfair given that I paid to have the TCU upgraded before June 2017 and there was fix until more than a year after I had that done.
Unfortunately, now it will not update stations at all. I receive "The connection to the center failed" 100% of the time. Refreshing status in the Nissan Connect app doesn't cause any update. I pulled the stereo fuse for several minutes and it didn't help.
I didn't have time to test nor troubleshoot at the dealer since I had to return to work, AT&T reception is unknown at the dealer, and I didn't have a fuse puller with me to see if that'd help. I couldn't look into it until I got home.
When the nav system shows the grey car at the top part of the screen, it always has the diagonal line thru it (like a NO sign). IIRC, it does take a bit of time after powering up for the TCU to become ready... but I already have waited a few minutes, each time, to no avail.
I tried a reset all Carwings settings on the nav system but that also didn't help. Dealer did give me a printout showing my VIN, system (TELEMATICS), saved date (this morning), etc., part number after programming being 283B0-3NF2B. Before was 283B0-3NF2A. I can see the 3NF2B in Leaf Spy Pro's service screen, for the TCU ECU revision.
SA seemed unfamiliar with the TSB until I told him the #. He printed out the 1st page and showed me (had the same verbiage as I quoted earlier). He said not a lot of people have come for them (my guess is probably because they didn't know about it) and that people that those leasing (presumably most Leaf drivers) don't care.
During our 1st conversation, he said that if the TCU was bad, they could replace it under warranty and there'd be no charge. But this wasn't a case (yet) of a bad TCU, but rather an update. I explained to him I was getting the TCU becoming unresponsive sometimes, requiring a fuse pull and the DTC P3131 until I deleted all my saved charging locations and turning off auto-saving of charging locations.
As an aside, he asked me how many capacity bars I was down (I was also paying for the dumb $40 annual battery check report, just to be on the battery defects warranty safe side). I told him 1. He was surprised. He said he'd seen much worse, esp. w/some drivers that QC only. I didn't press him on what he meant by that.
I got a call a few hours after I dropped off the car saying the TCU was rejecting the update for some reason and that they'd try again. The call later in the day was that car was done.