got a brand new hybrid battery installed after P0AA6

I recently got a new hybrid battery installed for my Toyota 2008 Prius. I changed it because Toyota had diagnosed P0AA6 being caused by a bad hybrid battery. I drove about 50 miles back home from the repair, and the car felt spectacular on the interstate! 3 hours after i took I picked it up from Walmart tire center for them to replace the TPMS sensors. It rained on my way home, I went to get the mail i reversed parked and BOOM P0AA6. I was in disbelief. I erased the code, and it came back twice. What could it be! thanks.

 

The problem was Toyota did not give me any sub codes at all. They only said your hybrid battery is bad and you need to replace it. I’ve seen other people here on Prius chat that had to deal with dealerships refusing to give the sub codes. I think they aren’t very fond of sharing them

 

This is all they gave me unfortunately.

 

No, all this is directly from Toyota

 

I just got my hybrid battery replaced because Toyota had said that it had gone bad. It was all good and perfect until it started raining and I got the old code I had before, p0aa6. I checked for water leaks. And the only thing I saw was wet mud next to the bumper vent , and a tiny trail of water dripping down the center from near the hatchback hook. I believe water has wet some component. My bumper has an opening at the end on the driver rear near the tail light. So I added seal tape to avoid any more water to enter. Does anyone know what procedure I can take to know what to dry? I’ll definitely need to get my bumper fixed. But for now how do I know what to dry? Thanks!

 

Update! I Believe Toyota may have misdiagnosed or wanted to take my money. There is a water leak from a crack in my rear driver side bumper by the tail light. It rained so I’m assuming water came into the components. I put some seal tape so water won’t come in anymore threw the broken bumper. I will also clean the mud that was created. Thanks to everyone that gave their input!