Battery Drain and Coding and Foxwell NT520

[hellspcangel911]

Hi All,
I have a battery drain, I have been chasing it for a few years, getting rid of it a while then it would come back - or something else would cause it.

I have a new alternator, battery, radio removed, new FSR and covered all the basics. Sometimes the '02 3.0 will go to sleep within 20 mins and sometimes it wont. I suspect a failing passenger front door latch.

I have two questions
1. If I open up BMW SCANNER and I remove the options such as the Alarm, tilt sensor... will that tell the GM5 not to energize those components, or if they are still connected but not coded for will it treat them as parasitic battery drains and therefore not go to sleep?

2. Is the FOXWELL handheld NT 510 or 520 scanner any help in tracking down the culprit or testing the door latches?

Many thanks,
G