Since I haven't had a chance to get back in the garage and keep going with pictures, etc., due to a torn meniscus in my knee, I'm going to answer this one the best I can. I'm assuming your ECU is from a '13-'14 Mustang Automatic. First, get on Ebay or Autotrader and start searching cars that match a '13-'14 with all the options that your car has with the automatic trans. Once you find one, copy the VIN. Then, go here: https://www.etis.ford.com/vehicleRegSelector.do and select "Vehicle" from the top menu. Enter the VIN of the car you found in your internet search. The website will give you all the "as-built" data of that car. You'll use that to enter the necessary ABS and transmission "as-built" codes into the VCM II and load into the ECU via the ALDL port under the dash. It is the "as-built" codes that will activate the select-shift function as that is handled solely by the computer. The valve strategy is simply to let the computer know what the flow rates of the valves are that the transmission was built with so the computer can calculate shift times, etc., correctly.