thurakyawswar wrote: Keefeollers wrote:
cliff wrote:I would also recommend the service manual. The P31E7 just indicates that P0AA6 has
been detected. A cause of the P0AA6 can be the battery heaters, but they were not
in all 2011 LEAF's. With all the CAN errors, my first thought would be for the non-high
voltage connector to the battery, though P0AA6 could be from many different causes
inside the battery. Also odd to see the 3rd CAN-bus errors from the AV, is the 12 volt
I found the 2012 service manual and I have looked at some of the error codes I have. Troubleshooting now.
Have u found solution now ?
Well, I forgot this thread existed for a while. Oops
Sort of? The issue was that when we lifted the vertical bank of cells back into the case I accidentally put it down on an alignment peg. (batteries are heavy and I am weak) This punctured one of the cells and that was causing all the error codes. Bought a new cell, for WWAAYY too much money
, and success, the car drives!
But all is not well in Leaf town. No siree.
We expected the car to recognize the new cells had different voltages and adjust itself accordingly. NOPE. We still had exactly the same range as we did before. Understandably, we were pissed. $5k on the car, $500 on towing it back from Arizona, $3k on the replacement cells, All that work and no change in range? Priceless.
Now, my guess is that the BMS had to be reset to accept the new cells, but there was no way we could really do that. So we had to just eat our losses and drive it how it was. Which sucked because it couldn't even make it halfway across town. AND I did a goof and screwed up the steering components by turning the wheel while a front tire was still tied down to a trailer; I bent a whole bunch of stuff. This cost us another $1k or so to fix.
So, let's tally up how much we spent on this. By my count we are in this for more than $9,500 and all we have is a car with 26 miles of range. woohoo. We could have bought a used Leaf that had more range and was a newer model for that price. (Which we did
If you've read this far, this would be the point in the story where all is lost for our heroes and there seems to be no way out. But things get better.
You see, as we continued to drive the car, our range was steadily increasing. One month it was 26 miles, the next 30 miles, and so on. Eventually, around June of this year, we had over 60 miles worth of range! Ha! Now this
is a car we can use. Take that, oil companies. We will bring you down, one trip to the grocery store at a time.
Of course, we don't know if it will stay this way. All throughout winter we were sitting at 25-35 miles of range. It could be that the warmer temperatures are giving us more range and when winter comes again we will lose it. Who knows? We'll just have to wait and see.
We also have added a janky battery heating system which we haven't even used yet. Go figure
Overall, I'd say the project worked. We set out to give the car more range than when we bought it and we succeeded. However, if anyone else wants to take on a project like this, be smarter than I was. Don't break your steering rack, or your suspension, or your batteries, or spend way too much trying to get it to work because you are just that stubborn.
Heck, I read an article that said Nissan was offering refurbished batteries for Leafs now. Maybe just do that instead. (I just looked it up and apparently this is only in Japan? Someone correct me if I'm wrong.
If anyone has any more questions I'll do my best to not forget about this thread again.