After verifying many, many times the wiring diagrams, forum posts and the physical wiring, I concluded that the pin 16 signal malfunction (latch retainer switch) for trunk closed was either the wiring or the PTCM itself. I clipped the Pin 16 wire near the PTCM module so there is now an open circuit on the latch retainer switch(Trunk lid should have indicated closed on the DRB III emulator after I clipped it and removed the "ground"). The clipping of this wire should have eliminated the wiring loom as the source of the grounding at Pin 16 of the PTCM. It still did not indicate trunk lid closed in the DRBIII emulator after this change, indicating to me that some sort of grounding or malfunction was occurring in the PTCM itself.

Am I making the right conclusion?

So I guess the next step is to obtain a working PTCM. Obviously, Ebay is a possible source, but there is a chance I can get a malfunctioning PTCM. So I guess I have to take a chance.....