Since my last post I have done the following work;
The solder connections on my new RCM were checked and all look good.
While removing panels under the steering wheel to fix a sticky key issue, found an aftermarket theft device connected to cars wiring.
Long story short, was not the issue. Can't tell you how deflating that was.
Pictured below is the device that may be a mopar part, dealer installed.
Sticky key repaired, panels replaced.
I have tried to search out anyone who I thought would be able to do a DRB lll scan and the best I found was a Chrysler dealer in Venice, Fl who says he has a Tech trained on Crossfire who has an emulator that can talk to the car.
Was hoping that being connected to a DRB lll scanner it would have the functionality to turn on "fuel pump relay" or turn on "start relay" but have been advised, that is not in the scope of functions of the scanner.
Next, I will be rechecking the heater circuit for the O2 sensor against values provided for a good working circuit. If found defective, I think having GannyX check the ECU is next step before having a scan performed.
Wayne