Techstream shows battery voltage and SOC not in sync

My battery charge display would sometimes show only 1 bar and randomly I would throw a generic P300 and P080 code.
If I unplugged the battery module to reset it,( without the engine starting to charge the battery),when I power up the car the bars on the display would jump up to show a full charge.

I realized at that point my SOC ( state of charge) in bars on my display was not showing to be in sync with the actual HV battery voltage. The bars seemed to stick sometimes throwing the codes.

Since the HV battery module senses the battery voltage by using 14 inputs, and the input voltages are reading normal, but the SOC did not follow the voltage changes in the charge and discharge cycles. I am assuming the module is bad.

The HV battery module seems to communicate % of battery SOC to the can bus system instead of battery voltage.
I am assuming the module is bad, guess I will try changing it but I probably need to check the CAN BUS Pins on the battery HV Module and Main module first to see if the fault could be by a bad can bus connection.

My question is, if all connections between the modules are good, when the battery voltage and SOC of the battery are not staying in sync, would that be a problem in the HV battery Module?

 

I meant my car was throwing a P3000 code not P300