It has to be related to motion sensor buy the sensor itself is going to be a few mA. It's kicking on other systems.

Does you DMM have averaging like mine? You can leave it overnight and measure the average draw over a range of hours and know if there is any concern of that motion sensor kicking on by itself.

Are you locking the car in this case? I was under the impression the motion sensor only turned on with the alarm but that does not seem to be the case.

FYI don't lock car from outside with your kid inside and go inisde a store. He won't be happy if he doesn't remain perfectly still.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)