Prius gen 2 Pa006 614 Please help

Ok so lets get started. So i got code pa006 526/614. I followed the diagnostic flow chart. Tested the frame wire. Got a bad test. Went back to the hv battery to do an independent test of the frame wire and noticed the relays were burnt up. So i got a new hv battery because it came with all of the relays, resistors and cpu with a lifetime warranty. Installed the battery. Tested the frame wire independently it tested good. Installed the frame wire. Went to the front and retested the frame wire, tested good. So that led me to believe the inverter was bad. Today i swapped the inverter. Started to drive and got the red triangle about 1/4 mile down the street. I am currently at a loss of what else this could be. Any insight or input is more than welcomed. Thanks in advance if someone can point me in the right direction.

 

Yes sorry for the typo. I have worked through the diagnostic tree as i explained in my post. As of right now. I get a good reading on my megger when testing the frame wire from the inverter back. Which lead me to believe the inverter was the problem as stated in the flow chart. I replaced the inverter and still get a the triangle. The battery tests good and yes it is a refurbished battery with a lifetime warranty.

 

What question do you have i would be glad to answer it.

 

Still no one can even point me in the right direction/to a thread. Im trying to solve this problem actively. Been at the junk yard for the last 3 weekends.

 

As far as trouble codes go i haven't had them checked since the battery replacement and inverter replacement. The P0AA6 526/614 was the only code it pulled at the dealership.

For the frame wire test i first unplugged the negative battery cable. Then the hv plug. I unplugged the frame wire at the front and tested both the inner and outer metal pieces in the plug. I got a bad test on 3 or the 4 connections. Both of the outer pieces tested bad and one of the inner pieces. Then i went to the hv battery and disconnected the frame wire to test it independently. Intested it from back to front and got a good test. Then i retested it from the front back while it was disconnected. Got a good test on the inner and outer part of the plug.

After this i replaced the hv battery because there was an obvious fault. One of the relays was completely fried. As well as the orange wire on the other relay. Picture below.

Once the new battery was installed it drove for maybe 1/4 mile before the triangle came back on.
So i then retested the frame wire from the inverter back and got a good test on all parts of the wire. Which led me to believe the inverter was at fault because thats what the flow chart says.

I replaced the inverter and the same thing happened. Drove it around the block and the triangle came back on.

I am going to try and clean up the the leads that connect to the relays to see if that helps. Other then that im at a loss.

 

Also thanks ChapmanF, I appriciate any advise you have to give.

 

I tested where the arrows are pointed at 500V.

 

Well i just hooked up a used frame wire and got no triangle. I let the engine cycle a few times and took it for a short drive. So now i think when the relays got burnt up it must have fried some part of the frame wire.

Another question that i have is, what could cause the relays to get burnt up so bad? Could the inverter have caused that?