Yeah, I've been meaning to update these threads.
I printed and organized every diagram I could find and started over, beginning with a trace of the fuel pump circuit. An engineer friend came over and we followed it from the pump forward, and found the fuse in the PDC had blown. Popped in a new fuse and the key-in-run clicking was gone. Runs fine.
It wasn't a huge deal as I have another vehicle to get me around, but I still couldn't believe it was as simple as a fuse (THE fuse that should have gone if the pump wire grounded as it did.) Myself and a far more experienced mechanic missed it the first time around. We're thinking we simply checked the wrong fuse. Thanks for putting labels on the diagram under the PDC lid, Chrysler.
