You'd need to leave the doors closed and wait about 15 minutes each time the multimeter (reading current) is disconnected and "breaks" the circuit. There's a timer in the BCM that activates and supplies power to the light circuits for that amount of time.I have done my own test for parasitic draw last week. I am not very mechanically inclined at this point in my life, but i tried this:
Found out where the 3 fuse boxes were.... Parked car, opened the driver's side and passenger side doors (manually latched those doors) so i could get to the fuse boxes without having to open doors once i started doing test. Turned off everything, unplugged anything that was plugged in, put key fobs a long way away from car. locked and armed security system and let sit for 2 hours. Hooked up multimeter in series with battery and got a reading of almost 4 amps. (As soon as i touched both leads of multimeter i can hear what sounds like a motor engaging from the car). I honestly don't think that is supposed to happen, none of the videos i watch showed that at all. I get a reading of about 4 amps constantly; it does not drop or fluctuate that much. I start pulling blocks of 4 or 5 fuses at a time once i get to the inside of the car, because i can't see meter from there, and I'm by myself. My meter kept turning itself off so i kept having to turn on/off and play with the leads again to get reading, again each time the 4amp draw and this motor sound each and every time i move or adjust the leads. Took me about an hour to go thru all 3 fuse boxes and the draw never went away. I am at my wits end.
Monitoring the charge current using ForScan would be a good idea. It will tell you what it thinks the battery SOC (state of charge) is, the current flow etc.
Carefully check over the battery terminal leads - especially the negative which has the BMS sensor- for any corrosion, tightness etc.
Other common electrical type problems can be from intermittent mega fuses in the fuse box on the front of the battery cover and loose earth at the engine bay strut tower.