aminorjourney said:Well,
Add me to the list... Me and our 2013 LEAF SL
Last monday, we came downstairs to a flat LEAF which, after jump starting, behaved itself until yesterday morning -- when it did the same thing.
This time the battery was flat as a pancake and started throwing errors every time it was charged.
I initially thought "maybe it's the plugless power system?" we've had on loan but after using the J1772 plug for the past day and a half it's still throwing the EV warning light every time I plug in.
Using LEAFSpy Pro, I'm getting P3131 00C0 EV/HEV System Shutoff Timeout EVC-220 every time .
Our TCU was replaced in late January for a 3G unit if memory serves correctly...
Now if I may, I'm going to add my twopennothworth.
I know our LEAF has sat in the garage for some time of late, and I also know that the 12-volt battery is not fully charged (I've had a battery tender sitting on it for the past day and it's still not showing up as fully charged) so I do wonder if there's some credence in the 12-Volt battery issue.
My car IS entering its fourth year and yes, I suppose there could be an issue with the 12-volt battery. I also know that there's an issue with that darned relay sticking (which I really should check) as well as a potential TCU issue.
I'll reset the carwings credentials tomorrow and call the helpline. I'll also Check the voltage of the battery, as yesterday when I was checking it the thing seemed to fluctuate quite wildly.
Why does the 12-volt battery thing sound familiar? Well, I also own a 2002 RAV4 EV, and those were notorious about throwing weird error messages and just being a royal PITA if the 12-volt battery system wasn't working as it should. (http://www.evnut.com/rav_faq_owner.htm#auxok) Replace the 12-Volt battery and voila! everything gets fixed.
Given that my LEAF's 12-volt battery is still not full, I suspect this may be part of the issue. But I also think something's going on with the TCU.
I had the EV warning light and the same DTC as you two days in a row about a month after getting the TCU replaced. CarWings had been working fine until it stopped sending charge complete messages and set the trouble codes. I let the car sit for a few days during an out of town trip and came home to a completely dead 12-volt battery. I jump started the car and ran a few errands to give the battery a chance to charge. The plug in reminder and charge complete messages started working again and the DTCs have not come back so it appears that the dead 12-volt battery reset the TCU. It has now been 2 months since the dead battery episode and there have been no more issues.