Okay I should now be testing ALL the wires that go into j1 & j3? To
make sure the proper wire is going to the right place?

How do I test the wires coming into j1 & j3? I have a chart that says
all the proper voltages and what not. But I'm not sure where to put my
multimeter exactly to test each wire individually..

Slowly learning guys..I know alot of my questions sound stupid. But I
am trying. I've got this far, no use stopping now :)