I have the same problem. I can't seem to find a wiring diagram that show the control module. My diagram only shows the starter relay and the negative wire going to the frame. On my truck starter relay command negative wire split into two wires, one wire goes to module located behind the left foot step cover and the other wire goes to another relay with a white and black wire located on the side of the fuse relay box. What is the purpose of the control module and can any you send me a wiring diagram that shows that module in the diagram.
7FGCU25-92335