Replacing individual cells in the hybrid pack

Hello!
I have toyota aqua 2015 that has a failed battery pack, so i decided to conduct the following experiment to determine which cell to replace and how many to replace (first time messing with a car, so let me know if the procedure is correct or not).
First, i cleared the error(P0A80-Replace Hybrid Battery) using a scanner that allowed the car to function as normal for some time.
During this period, i logged the following for 830 seconds with steady acceleration and sharp breaking(enough for the regen breaking to work) :

1. Battery block number with minimum voltage
   
2. Battery block number with maximum voltage
   
3. Battery Block Voltage,... (from 1 to 10)
   
4. Batt Pack Current Val(Amperes)

So logically, i figured if i plot the battery block number with minimum voltage, i can then determine which cell is causing the car to assert, but unfortunately i am not able to make sense of the data with confidence so any help here would greatly be appreciated.