CEL light on (solid), red triangle with "!" on, and hybrid system malfunction light (car with "!")

I own the Prius 2007 and I'm having similar issues with a master warning (Triangle with "!"), engine check in yellow, and Hybrid system malfunction, as shown in the attached pics. As I thought the 12v auxiliary battery has a trouble, I performed a battery check in the system check mode under the ACC mode and found out the voltages seem to be fine, according to this website "How to Check the 12v Auxiliary Battery Health 2004-2009 Toyota Prius."

So, I suspect my Prius has some issues on the water pump for the inverter or hybrid battery. Does anyone know the clue to specify which part is having trouble? I have also attached some pics to show some codes that the LAN Mon check shows. Thank you.
-Sasa-

 

welcome!

how many miles on her?

 

She's now 175,000 miles.

 

i don't see the 12v in your pictures, how old is it?

you can check the inverter pump by making the car ready and opening the reservoir to look for movement in the fluid.