danbertolet wrote: ↑
Mon Dec 28, 2020 4:32 pm
So are you saying 7 amps is normal in on mode but not in ready mode?
No, that seems very high to me.
I was wondering if the "-" in front of the 7.23V actually meant negative, as in, current charging the battery.
Certainly, the dash character signifies negative current, but there isn't a totally universal agreement on whether negative means discharge (feels right to me) or charge. [ Edit: Before you cleared the trouble codes, you probably could not get the car into ready, so you would not be charging, so most likely the negative sign indicates discharge. ]
I just reset the DTCs with LEAFSpy. Now the car goes into ready mode normally, goes into drive, and the 12V warning light has gone off.
Right. When in ready mode, certainly just after the start of ready mode, your battery will be charging (assuming that the DC-DC converter is OK, and there is no reason to suspect it's not) So that will tell you the polarity convention. My Leafspy dongle has gone missing, so I can't quickly check, and I just don't remember for sure which way it goes.
So I think my 12V battery is teetering on the edge (it got warmer outside since this morning).
Yes. Since yours is a 2011 model, with the same poor auxiliary battery charging as mine, you should get a voltmeter that plugs into the 12V round connector (used to be called a cigarette lighter outlet; what do we call them now?). Use the wipers to keep the battery at over 14V for as long as you can.
Yeah, I hear you about the tricky business of finding a ground fault in the battery pack. I'm not going to try it. But I'm just trying to eliminate all other possible fixes before taking it into a shop.
An excellent idea. It's still possible that there is nothing wrong with the high voltage pack (no ground fault/leakage), and the fault codes are all a result of the 12V battery being horribly low on charge. It needs a good few hours above 14V to recover. Low auxiliary battery voltage is the cause of way too many false alarms in EVs. Just driving a 2011-2012 model Leaf to the shopping centre and back isn't going to recharge the auxiliary battery at all, sadly.
2012 Leaf with new battery May 2019. New to me June 2019.