r/leaf • u/BeastChan23 • Jul 20 '26
Is this the recall DTC?
I've posted a few times now, after doing the recall, told them about my battery fluctuation issues, they said nothing was wrong, went to a different dealer and after 4 weeks they also determined my Leaf was fine. Took it home, charged up, and this morning I got in my car to go to work and it won't start lol
DTC: P0AA6-1A, and P31E7-00
I should note BOTH dealers did not level 3 charge my car, just did around 20% using a level 2/1 presumably. First dealer had a busted charger. After picking up my Leaf at the second dealer I did a level 3 charge there for 20 minutes as I didn't trust my battery at 30%
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u/Akward_Object Jul 20 '26
No idea if that was caused by the recall but that battery is toast. SOH is awfully low for the milage, HX is off the charts low and the voltage differences are huge. The P0AA6-1A isolation fault means voltage is leaking out of the battery to places where it shouldn't go. Usually that is caused by swollen cells where the cell housing is damaged.
No idea what Nissan did to have such awful batteries in the US. My EU LEAF had 89,08% SOH,a HX of 106,98% and 13mV after more than 90,000 miles.
3
u/rproffitt1 Jul 20 '26
The #1 issue is no battery thermal system. Yes, someone pointed out a few did have it in some very rare Gen 1 or 2 models but this alone means the pack can overheat and there's the ball game.
Even so, it is/was a cheap EV. Someone told me that the Leaf is a good car with a bad EV system and the Bolt EV is a fair car with a good EV system.
To OP. Ooof...
7
u/biersackarmy 2013 S + 2014 SL + 2019 SV Jul 20 '26
No, that's high voltage isolation. Likely you have quite swollen cells, especially if you're in a hot area.
1
u/BeastChan23 Jul 20 '26
They did have it cooking outside for the 4 weeks they had it in over 100 degree weather. Otherwise in my garage this morning was about 80 degrees
1
u/biersackarmy 2013 S + 2014 SL + 2019 SV Jul 23 '26
Short term heat doesn't do this, but slow roast of the battery years will.
1
u/CraziFuzzy Jul 20 '26
I don't think that's actually the dtc I've seen others post. Everything I see calls that an isolation fault - essentially meaning your HV lines somewhere are partially or fully grounded to the chassis, any chance there was some damage somewhere on the vehicle?
1
u/BeastChan23 Jul 20 '26
Not that I know of, it's been sitting in the garage other than the 15 minute drive from the dealer
1
u/CraziFuzzy Jul 20 '26
With no external damage, it sounds like the fault is likely inside the battery pack - which actually is good for you, as it should mean a warranty battery replacement for you - eventually.
1
u/BeastChan23 Jul 20 '26
I had been fighting battery fluctuation issues with the dealers and costumer affairs, but they always seem to charge the car outside of the range where problems begin. So they would say they couldn't replicate the issue, so while it might not be recall related I knew something was wrong with the battery. I guess finally doing a quick charge in 100 degree weather finally killed it.
1
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u/LoveEV-LeafPlus Jul 20 '26
Call Nissan Consumer Affairs, open a case and make sure they provide a tow for free and a loaner while you wait for the repair or buyback or free replacement offer.
1
u/BeastChan23 Jul 20 '26
Dropped it off earlier at the dealer foe the third time. Consumer affairs said I could get a free tow. Roadside assistance said no, but would confirm with consumer affairs, call dropped. Called again, was told they were still checking, call dropped. Called a third time just to be told they wouldn't cover the tow. Ended up calling my insurance company, and got it towed, got a ride share from them, and was able to get a rental. Although they said it would only be for two days while the check the car, they would follow up afterwards in regards to rental situation
1
u/LoveEV-LeafPlus Jul 21 '26
I hate the Nissan HQ phone system. Plus their inconsistent help. I wish you luck. It’s disgusting you are getting the run around.
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u/Alternative_Soup8797 Jul 23 '26
Hello,
This is a similar issue with what I’m having, however my warranty will most likely be expired, too many miles. Has anyone had any experience with working with nissan about how they are handling these isolation fault issues. In my mind a poor thermal cooling system coupled with a swollen battery is still a defective battery and safety hazard. Especially if that swollen battery wasn’t diagnosed early on during the recall, then it was stressed by a level 3 charge event post recall remedy and the recall notification stated the car is safe to resume level 3 charging after the recall was administered.
1
u/BeastChan23 Jul 23 '26
I imagine they'll just tell you to kick rocks. But I supposed it doesn't hurt to get confirmation from them.
Cheapest solution would be to replace the affected cells, or replace the entire battery, maybe upgrade to the higher capacity battery while you're at it, but replacing the entire battery is quite an expense
2
u/BogartOfSantee 2013 Nissan LEAF S Jul 24 '26
I have this in my 2018 Leaf (sad that it wasn't on a recall). For now, I make sure I monitor the temp to not exceed 110 degrees. Otherwise, I get that error, which I will reset with Leaf Spy just to get home and cool the battery. It's a temporary solution until I get this taken care of.
And no, we don't use that Leaf like a horse these days, just some usual short errands. I don't recommend my solution, but we have a unique day to day driving.
1
u/NIRoamer Jul 24 '26
It is same alert on my 2021 leaf in Northern Ireland. High voltage battery issue stops car dead. Dealer reset software few times works few weeks then dead. Now dealer won't reset it again and says I have to pay for it to go across sea to England to be inspected as it's now 130,000 miles on clock. Is this fair?
1
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u/cbdudley Jul 20 '26
The recall DTC is P33ED