Uh-oh, I may have bigger problems. Is the diagram you're looking at showing the control at the back on the top of the washer like most washers?
Can you send me a link to your diagram, because the actual machine looks like the one you're describing. I have a picture of a bunch of related models and yours is really the one I need.
I thought of one more question. When I get that pump out of the LG front loader, is there a way to put a meter on it and test it?
Since this got blocked, I want to give you another rating, but I guess I have to reply for that to come up. What would you do in this case? If it's not draining and spinning, would you bet it is the pump, or would you get in there and test those two wires?