It is fixed!
Ford dealer had picked up my car yesterday morning and returned it at 5.30pm and all back to normal. At this stage and hoping it stays okay. Yet to start it this morning but confident it will.
In a nutshell they...
"CHECKED AND TESTED CARRIED OUT
BCM UPDATES AS REQUIRED. RESET FULL SYSTEM AND TESTED BATTERY AND CHARGE RATE ALL OKAY"
Nice to finally not have that damn Engine Management symbol finally gone. Has been there for years.
All up $320 but a relief all seems back to normal. Service dept rang me to say it was done and started with making the point after 4 hours working on it all was done.(Cough cough)
Thanks everyone with your assistance.