Refrigerator Amana model ASD2620HRW ice/water panel no longer working

I have a refrigerator that is approximately 12 years old that is a side-by-side with water/ice in the door. Between last night I got some water at 10PM or so, and this morning about 7AM the front panel stopped working. There are lights on the panel that are supposed to be always lit, which tell you what setting is selected ice, water, crushed, etc.. None of these lights are lit, and none of the functions work. It's as if the panel has no power. Everything else on the fridge seems to work fine. I've removed the bezel and looked at the electrical control board for the water/ice dispenser part number 67004258. I'd like to troubleshoot things before I order a replacement electrical control. Specifically, it would be nice to see if power is coming through the wiring harness to the board, but I don't know the pinout so that I can test the correct pins. Questions: - If the lights are out and nothing seems to work on the water/ice dispenser, is it likely a bad control board that's underneath the water/ice dispenser bezel part no 67004258, or is there something further upstream I should test first? - Can someone provide information on the wiring harness so that I can see if I'm getting power to the control board part no 67004258? - Are there any other troubleshooting steps I need to take? What's your take on what might be going on? Edit: The answers here were pretty unhelpful. I contacted Amana and they refused to give me a wiring diagram, instead telling me that I needed to use one of their repair services. I finally got someone on Reddit to interact with me. Come to find out, a wiring diagram is taped to the bottom of the fridge, which I used to trace the problem to a bad wire splice IN THE DOOR of the fridge. A repair to the splice is not repairable. However, I was able to bypass the splice and get everything working again. Unfortunately, the repair forces me to have a wire on the outside of my fridge door running from the ice/water dispenser to the hinge, but everything works perfectly, and now I have time to save up for a new fridge.