What does tumble-weed sound like?
Pretty sure my GEMS does exactly the opposite of what the appraisal Nano/ diesel combo is doing. If you try and DISable EKA and Immmobiliser after the alarm is tripped they will get rolled back to ENabled. Nanocom gives you confirmation of success, blah, blah but if you close the session and return the fields are ENabled once again. So then you're still left with other 3 tools to get going - key, remote & EKA. I'll go out on a limb, and say that changing these settings to disabled in an alarmed state can't be done by nanocom, and can't magically start a 4.6 GEMS.
Not sure it really matters anyway - if you have a nanocom then you have a means to enter the EKA which is surely the logical option, and probably not worth having flamed someone over, especially given that no-one else can replicate what you have seen