Paul and Tony,
To answer some or your questions,
- NO fuses blew. Wish at least one had.
- I believe PCM does get power. Relay kicks in and check engine light illuminates both when ignition on and when cranking. With relay pulled, no light.
- From what I can tell, PCM is getting inputs but not sending much down the line.
My trip through the battery junction box was a good learning experience but not helpful to the problem. Seems relay terminal assignments 3&5(high side in/out) are reversed from what the official Ford electrical troubleshooting manual states. Not a functional issue but it helps to know which wire you're probing. Once I started checking the right wires the problem I was chasing was no longer an issue.
I appreciate all your help. As much as I detest "try it and see" approach, that is where I'm headed next. New PCM and then we'll see.
