To Graphiteghost, no, there wasn't any fluid spilt on the shifter area. Car was stored indoors all winter, and started troubleshooting an intermittent fuel pump issue on RCM this spring when the no start issue appeared.
Not sure if I have caused the "no start" issue by cycling the ground connection on and off the battery during troubleshooting as occasionally I get a good size spark on connection, and this is with the key out of ignition, doors closed. Am thinking that I have caused a surge or something damaging a module.
Pizzaguy gave me a list of items to check, and working through them, the Transmission control module is where I spent a few hours troubleshooting yesterday, continuing today. The shift module is communicating with the instrument cluster so believe that is ok.
Transmission control mod troubleshooting has been a bit more challenging as the manual has some wrong info it it. Plug c206 and c207 where mixed up, and in troubleshooting the sci transmit voltage, Step #6, the procedure is to disconnect the plug C1 from module and check the voltage on the Data link connector.??? Course voltage will be zero. (unless I just messed up but I reviewed this) Jump to new thread I started "Data Link Connector"
To Zip439, Battery was disconnected overnight. Battery voltage at 12.8 volts connected to vehicle. Car did not start. (darn) The shift mod is not communicating with the instrument cluster now so will start looking into why that changed. The output from traction control relay Pin C4 and 5 is 12 volts. Power top looks good, heater fan runs, light work. Will update at end of the day.
Not giving up.