Thanks for the update I’ve got a good gist of how canbus works but as the hab door is manual lock / unlock only ( no electronics connected) I’m struggling with how the door being opened by key unlocking is triggering the alarm with no visible sensors present. It’s not what’s causing the problem as that seems to be the hottest switch, but I was just interested to know how the hab door is working and or connected in case I get any issues with that later on.