Error Code 01-DC 1C6-95-1

My 2005 Prius currently won't go into ready mode and shows pretty much every error light possible. There are no error codes on the OBDII side of things but there is one EMV code which is 01-DC 1C6-95-1. I have very recently replaced both the hybrid battery and the 12v, the latter of which is currently displaying a voltage of 12.3v. Any help deciphering the code and getting my car back up and running would be greatly appreciated.

 

I did have the hv battery replaced with a refurbished unit and I have been driving it around for about 2 months with no issue. If it is the hv the work should still be warrantied so I'll be calling the refurb place tomorrow. Also, the prius was in ready mode when the warning lights lit up and was displaying a voltage of 14v at that time. After immediately turning it off and on again it was displaying 12.3v and wouldn't go into ready. But is there any way to decipher those error codes without a proprietary code reader?

 

I tried to read the codes with a cheap bluetooth OBDII scanner I got off of amazon and used Torque(Lite) for my attempts at reading. Would OBDII scanner you suggested be better than the one I currently have? the I last drove the car two days ago and everything seemed to be working perfectly fine, however when I did start it two days ago I noticed that there were only two "bars" on the display battery and once I drove down the block it dropped down to a single red bar despite the ICE running the whole time. It did eventually continue to charge to normal levels but it did make me nervous at the time. When I tried to start it today the display indicated the hv battery was half full. I just checked the orange disconnect and the fuse inside looked fine and I made sure I pressed it down and it clicked right when I re-inserted it. I don't currently have a trickle charger and I'm probably going to have to wait till tomorrow to buy one since everything around me is closed right now

EDIT: I downloaded Dr. Prius and found HV Battery ECU error code: P0AA6
Would you recommend purchasing a basic license for the app's battery diagnostic tools?

 

I had the battery done by Falcon Hybrid Solutions which is conveniently located near me Rebuilt Toyota Prius Hybrid Battery Reconditioned and refurbished with generation 2 cells. Since I had it done only two months ago the battery is still within their six month warranty period

 

I had them install it for a $200 up-charge at their shop. I'll probably attempt it myself on one of my future priuses(prii?), but this time I was in a pretty big rush to get it going and didn't have time to fumble through it and potentially make a big mistake.

 

Actually going to be heading in for the night now so I'll try disconnecting the battery tomorrow morning and getting a trickle charger for the 12v when shops around me open. And as far as I could tell everything was working perfectly fine besides what I mentioned before up until this problem. Thanks all for your help so far

 

So just try to charge it while still connected and drive it over to the shop to see if I can get it worked on? Will it actually go into ready mode with an HV battery error?

 

So after charging the 12v with the tender for about 17 hrs I tried to turn it on and it still wouldn't go into ready, showing 12.1~12.2v which was exactly the same as before. However, very recently I replaced the 12v and couldn't get it to go into ready with almost identical symptoms as this issue. I made my first post here (Prius won't go into ready mode after replacing 12v battery | PriusChat) and came to the conclusion that I didn't clean the corrosion off the battery terminals(which I didn't even try to do). After attempting a cleaning with a large steel wire brush that barely fit it got it to read 14v and ready the first time. However I probably wasn't completely thorough because of how big the brush was. As a result of the above listed methods failing, I have just purchased a dedicated battery terminal brush and went to town, which worked and allowed the car to ready and now reads 13.8v~14v.

I'm glad I got it going again but I'm still concerned I haven't really solved the issue. The problem is that now I've learned that disconnecting the battery also resets the codes, I'm worried that I may have replaced my 12v in vein and there might still be a large repair waiting to leave me stranded somewhere. I'm hoping this isn't the case because I actually had to jump the 12v around the time I replaced the HV, so I assumed it was weak and waiting a month for the 12v to die didn't seem unreasonable at the time. But since I had to clear the codes to get it going, I'm thinking that there are only two possible things I can assume for now:

1. I potentially just simply botched the 12v replacement and failed to clean the connections thoroughly enough and now I'm all set after giving them a more thorough scrubbing.
2. Since I can't try to get some kind of warranty repair without active codes, the only thing I can do is wait for another dramatic triangle of death to pop up a week or two from now, as it did after my first attempt at the 12v replacement.

Regardless, I think all I can really do is wait and hope for the best. Also, how likely is it that I cleaned just enough corrosion for it to start for two weeks, and then build up enough corrosion to break the good connection within that same time period(it has been consistently super humid for the past few weeks as well)? Any other thoughts?

 

That happened twice to me so far, once right before my 12v "died" the first time, and then again this time. It went into ready, yelled at me, and allowed me to drive around and get home until i turned it off and on again. However, like when I replaced the 12v the first time, all the errors went away and they stayed away for two weeks. This time the errors have seemed to completely disappear again, but if that wasn't the problem to begin with then it'll definitely crop up again. I wish I knew about the Dr. Prius app when I had my first bout of issues, would be helpful if I could find out whether I got the same error code twice.

 

This is the battery I purchased off amazon:

Should I order a better one and return this one? I think I still have a week left in amazon's return policy. If so, what battery would you recommend?