Based on the test and info I have given you, are you about 70% confident that this is the part that needs to be replaced?
Yes That or there is a wiring issue
Is there a way to test it, before I purchase it? I was able to access from the front right side down below.
Not that I am aware of
I think I found it. Lower right front access.
Seems like there would be an easier way
was pretty easy once it was determined to be the correct board. Just can’t see it without pulling things apart.