MalcolmReynolds wrote:Have we seen any progress yet on these TCU upgrades? Have they issued any fixes? Upgraded any hardware? Or should I continue to wait on doing the upgrade? I been holding off based on the input here. The dealer tells me "oh, we have done a lot of TCU upgrades and have not heard of a single problem". So for some reason they are pushing hard for me to get this upgrade done.
I've been hoping for something since viewtopic.php?f=30&t=12448&p=497352&hilit=singapore+engineers#p497352
AFAIK, there have been no fixes in terms of firmware, software nor hardware. Since Nissan hasn't been known to do OTA updates of firmware before, not sure they'd start with the 3G TCU. I've been checking http://x.nissanhelp.com/forums/Knowledg ... ?catid=783
and http://x.nissanhelp.com/forums/Knowledg ... ?catid=783
for updated TSBs or service campaigns but seen nothing new. Then again, NissanHelp is sometimes behind.
That said, I eliminated by ! yellow car and DTC P3131 prob via viewtopic.php?p=499192#p499192
. I've had none of that anymore to this day. I posted viewtopic.php?p=501812#p501812
and maybe a week ago, I turned on data transmission to Nissan, auto-saving charging station locations, send unplugged messages and pretty much everything I could find re: auto-saving charging locations. So far, no yellow ! and P3131, yet.
Perhaps there's a bug with locations saved w/the old 2G TCU installed causing probs w/the 3G TCU? I cleared all the old ones out before re-enabling... Let's see if this holds. I was hoping to have the DTC trigger so that I can have the dealer make a note of it when I take it in for the overdue annual "required" battery check cough cough... useless to the customer printout.
I haven't had any dead 12 volt conditions but then again, if there are big drain, it may be masked by my preventative (hoping to make my 12 volt last longer) about weekly charges I make using my Tecmate Optimate 4 12 volt charger.
JRoque: If you don't have a 12 volt charger already, I suggest you charge it up say once every week or two, just to help maintain the 12 volt due to the crappy charging algorithm and help prevent dead 12 volt cases. I have an older version of https://tecmate.com/products/optimate4dp/