P0AA6 code, Combo Meter, MFD Replacement, Reconditioning questions

ok I replaced the 12V battery, but I'm still having some issues with my car. I'm getting the P0AA6 code. I used the Dr. Prius app to test the life of the battery and it said 35% which I know is not good at all. I may run another test later tonight, and run the more detailed test to see what I can come up with. The car was sitting for a while in the Florida heat, so I know the battery doesn't like that. I hope driving it around a few times might revive it a bit.

On top of that, my dash lights have gone out. This happened once before a few years ago and somehow it turned back on again, but now they are out again. I know it's related to the Combo Meter, and I'm aware I can get one from Texas Hybrids online. I also found a repair service here in Fl that can do it for $40 + shipping so I might go that route to save some dough.

Also my MFD is out and has been out for a while so that has been driving me crazy and I've been wanting to replace it for a while. I think it's the sunburst issue. I can see it barely at night sometimes, but during the day it's impossible to see anything. If I have to do the Combo Meter I might as well do them both at the same time. What is the best source for MFDs? When I researched it a few years ago I found a few people you could ship them to and they will repair and ship back, but I'm also open to either getting a new one if possible or used on Ebay. I have the touring edition so I know I have to make sure I get the right MFD for my car. 86110-47220 7 keys, US version with navigation and Bluetooth. Or I heard 86110-47260 also works.

So yeah I'm hoping the hybrid battery will last until I can get my hands on the new sodium batteries. Do you think I should attempt a reconditioning on the hybrid battery before then? If so what is the best method for this? I've been wanting to learn how to do this for a while. If I can invest in conditioning tools that will also be compatible with my new sodium battery that would be ideal.

 

UPDATE: I drove the car today and the dash lights came back on just like last time so that's at least some good news

 

When I did my quick research on this code I found that it's somewhat difficult to diagnose because it could be pointing to one of several potential issues, so unless I take it to a mechanic with a better scanner it will be hard for me to know with certainty what the exact issue is. Also I recall seeing this code before several years ago around 4 years ago when I first had issues with the 12V battery, and once I got the new battery in there the code went away and never came back. My car has been driving relatively problem free for 4 years so that's why I'm slow to rush it over to a mechanic who might suggest all sorts of repairs that may not actually be needed. Do you have any other insight on this code you could share?

 

Thanks, yeah I looked into doing this years ago, so I'm familiar with the product. I thought maybe there would be something better on the market by now, and I know there's a better one out there that is more expensive but I forget the name. I would want to install it in the car with the battery so I could trickle charge it every so often, or take a weekend and do my own reconditioning from time to time. I was actually going to upgrade to the lithium battery a few years ago and I've just been procrastinating on it, and now that they have a new tech coming out soon I want to wait for it. My thought is to keep my old hybrid battery around as a backup if needed, and replace any bad cells if I can learn how to do all of this. Or maybe just replace bad cells and recondition / rebalance it and sell it for cheap with a full disclosure and disclaimer. What would you do?

 

What would I be looking for in regards to the isolation problem?