Unable to Restart after using AC (was AC causes failure)

[aqn]

If the fix is to change firmware, that would seem to suggest that it wasn't a bad batch of parts (e.g. sensor) that made it's way into the cars. I guess that's a pretty positive thing.

It'll certainly be less invasive hardware-wise to rectify...

[DarkStar]

Anyway, my version is 3NA0B. Does this mean that my Leaf is OK?

It's starting to sound like it... Somebody reported having the problem with the 3NA0C revision...

[TomT]

Clearly I misunderstand how to do this. I think my confusions steam from threw things:
1) Leaf power on assumes a normal car bootup? Does one simply ignore the Carwings screen at this point or do you have to accept it?
2) If the audio system is already off do you ignore this step or does it have to be left on for it to work?
3) PWR button refers to which button? Audio? Car? Other?

Thanks!
Tom

The only diagnostics screen I'm aware of is in the navigation system:

1. Turn LEAF power on.
2. Turn audio system off.
3. Press "MAP" 3 times.
4. Press "PWR" 2 times.
5. Press "MAP" 1 time.

Enjoy!

[greenleaf]

Clearly I misunderstand how to do this. I think my confusions steam from threw things:
1) Leaf power on assumes a normal car bootup? Does one simply ignore the Carwings screen at this point or do you have to accept it?
2) If the audio system is already off do you ignore this step or does it have to be left on for it to work?
3) PWR button refers to which button? Audio? Car? Other?

1) Yes, normal car bootup. I ignore the Carwings screen. Your car should not have the EVSE attached.
2) I think I ignored this step if audio is already off.
3) PWR is the same button that toggles audio on and off.

[Fabio]

it took me a few tries,
car was on in park (ready to drive)
ignored carwings
pressed the sequence (3xM, 2xP, 1xM) quickly.

... and I'm running firmware A. I have the dinosaur version.

[TomT]

Apparently I was just rushing the procedure too quickly. When I slowed down it worked. Interestingly, my part number is 3NA0A. So, it would appear that March deliveries can be either A, B, or C software...

A lot of interesting functions in those menus... It would seem that, if we had a copy of the software ourselves on SD card, we could flash it from the "Update Software" function.

Clearly I misunderstand how to do this. I think my confusions steam from threw things:
1) Leaf power on assumes a normal car bootup? Does one simply ignore the Carwings screen at this point or do you have to accept it?
2) If the audio system is already off do you ignore this step or does it have to be left on for it to work?
3) PWR button refers to which button? Audio? Car? Other?

1) Yes, normal car bootup. I ignore the Carwings screen. Your car should not have the EVSE attached.
2) I think I ignored this step if audio is already off.
3) PWR is the same button that toggles audio on and off.

[jcesare]

If the the problem is with 3NA0C, that would explain all the reported "holds" on the cars in Long Beach. It takes time to patch and properly test a revision. They are probably waiting for the "D" patch to be released. Being in software development, my mantra is "when all else fails, rollback."

[wwhitney]

If I understand correctly, modern cars have many different computers or ECUs, each with their own firmware. How confident are we that the version number we are accessing on this diagnostics screen is the version number of the ECU throwing the errors codes?

Thanks, Wayne

[DrPowell]

A lot of interesting functions in those menus... It would seem that, if we had a copy of the software ourselves on SD card, we could flash it from the "Update Software" function.

Doubt Nissan would go for that. "Bricking" a cell phone or camera with a firmware update is one thing, botching the FW update of a car is another. There are all sorts of strange glitches which can happen when flashing low-level (BIOS/UEFI/OS) firmware. Now if Nissan's done the hard work to support reliable over-the-air firmware updates, the whole issue is moot, but I doubt they've done that (not knocking Nissan).

Would someone be able to take a quick & dirty cellphone camera shot of the diag screen, when you have a sec? My car's coming in 2-3 weeks and am curious for a peek at what y'all are seeing.

[TomT]

No, clearly they would not, officially, but that would not stop some from doing so any more than Motorola has ever been able to successfully keep people from rooting their phones... Of course, we don't know which software update(s) it is referring to... It could be just the Audio/Nav system, for example...

It would be interesting to know exactly how Nissan is physically doing the software upgrade on the affected vehicles...

A lot of interesting functions in those menus... It would seem that, if we had a copy of the software ourselves on SD card, we could flash it from the "Update Software" function.

Doubt Nissan would go for that.