Coolant Storage Tank Pump

Issue: Coolant Heat Storage Tank Pump was making terrible noises. Heater worked fine but car was giving OBDII Code: P2601 Coolant Pump "A" Control Circuit Performance/Stuck Off.

No coolant leaks.

Attempts: Installed 2 separate heat tank storage pumps, 2 separate times (hoping the first pump was just defective). Previously, I changed both of the other 2 system pumps in the last 2 months as well. This being the last pump left to replace.

Result: Code has disappeared and does not return but the Prius seems to just cook the coolant and not perform a bleeding cycle in Maitenance mode or otherwise just running it, after installing new heat storage tank pump.

The hose running to the pump gets very warm but the pump it's self is cool to the touch and makes no audible noises as to demonstrate it's pumping anything

In attempting to bleed it (both valves open running tubes back into where you feed the coolant, the car doesn't want to take in coolant but a little gulp every 15 minutes after it's so hot it's steaming. No fluid comes out of the tube in the bleeder port being opened (the one closest to the battery that you stick a #6 key down into to turn and open)

Which fuse would I want to check? Getting conflicting info online, the backside of the box cover is no help and doesn't say which one it is. No, I don't have a repair manual lol