2001 prius acting wired

Hi I have a 2001 prius with more than 200k miles that acted wired. It did not turn off on stop lights but instead turned on and off repeatedly with very short intervals. I thought it may be the HV battery so:

I just changed the HV battery with a complete set of 2005 modules. I used all the 2005 modules and completed the remaining with the good modules from my 2001 ones (the ones that had over 7.5 v ) ( I know I did an awkward job). Now the car has problem turning on, it sometimes turns on and runs but it runs weird. It does not accelerate, sometimes cannot run on R (reverse), and all the red triangle and the engine lights are on. Yesterday after deleting the codes, it acted normal for a while (everything was normal. I even had the guts to drive it in the freeway and it ran perfect) but today the engine keeps running and the green arrow on the monitor continues pointing to the battery even though the battery is full charged and full green! it does not run on R again. Before changing the modules, I tested the modules and it had more than 10 showing less than 4V so I thought I am doing the right thing changing the modules with the G2 kind. But now I am thinking there may have been something else other than the HV battery causing this problem that still exists. Any idea? Has anyone had the same problem?

 

well, I will renew the battery and see what happens.
I will let you know about the result
Thank you

 

I renewed the 12V battery. It started like normal in the beginning. Then, all the red triangle and the engine lights went on again and the car cannot backup (R) anymore (it only kicks, but does not back-run ). The car speed is better though and running the car on D has no problem. There should be something other than the batteries not working well.
the monitor shows the battery to be in full charge at all time (super full I may add!)
Where are the sense wires?
Thanks for your time Bob.

 

Thanks for all the advice
OK, I am going to check the modules again today. How do I check the sensors? I read in another post that they should read at least 2v ? how do I check that? I cannot afford to buy more G2 modules so I am going to stick with the ones I have. (28 of the modules are G2 type and only 10 of them are G1 type and I picked the ones which had the highest voltage = more thar 7.5v). I will check for any corrosion or short circuits.The only code I got was p3030. The engine light, red triangle, and break light are all on. And the car cannot accelerate more than 15-20 miles per hour now (a new thing that happened yesterday). What else do you think I need to check for while I have the battery out and exposed again?
Thanks

 

Thanks everyone
I cleaned all the bus bars on the battery using sand paper
and put everything back together again
It is running perfect with no faulty codes whatsoever!!!
(I still have 10 of the old modules mixed with 28 newer ones and the computer has not detected anything yet (knock the wood!!!)
cheeeers!:rockon::cheer2:

 

Here are photos from both sides of the battery:
At one side the busbar folded nicely but on the other side the plastic cover cracked but it still is holding tight.

 

The old modules are smaller in length than the new ones so I did not have any problems putting the shell on. The car is running perfectly with no warning lights on.