I have looked at that and the problem is that it doesn't show the resistor or the relay switch above the resistor in the engine compartment. There are three wires coming out of it, one of them is a blu/whi but it has been cut. i think I found where it came from but the person who owned the truck before me had this wire going directly to the second set of points and not back into the resistor....I'm just no sure. I'll try to post a pic later maybe that will clear it up.