first can you pull the white cover off the front of the ice maker? next you will need a piece of wire about 4" long stripped back on both ends about 3/4" stick the wire in the hole on the module marked T&H this will start the ice maker,
do you have a volt meter?
I'm a little confused, where is that valve located, do you mean the back of the refrigertor
and is there a ground point for my meter and the hot lead to the valve???