Please I have a code that said that I need to change the battery pack, but, I am trying to change just the block V04, I have a prius C 2012 how do I know which one is it? Is it A or B? thanks
Block 1 module usually starts on the opposite site of all the electronics gear attached to the pack... I've not worked on a Prius C pack, but from your pic it looks like gear is on the right so block one is on the left and A would be the correct answer. But why not do a voltage test on all the modules to be sure you're being thorough?
Block one starts at the negative cable. For some reason I can't see your photo but hopefully that helps.