I'm having issues with my FICM on my late 04 Powerstroke. A crank/no start situation. We hooked a diagnostic tool up and I was getting 0 voltage to my logic board side or power supply board side of the FICM (12v in or 48v out). I tapped the top of the FICM with a 3/8 drive ratchet and all of the sudden I had voltage across the board. The truck fired up and seemed to run fine. I pulled the FICM out and found that one of the square transistors on the power supply board had broken off and was rattling around inside the unit. I have a replacement Tech Smart power supply board on order. My question is, would a failed power supply board affect the logic board voltage as well or do I likely have other issues that I need to be looking at?