There were, to the best of my knowledge, only two things in the "on" position while this happens:
1. The refrigerator
2. The Switch on the dash for the entry steps
Anytime the "house" switch/Battery Disconnect switch/"salesman" switch is in the on position so power is distributed to the fuse panel, alarms, circuit boards, and device memories will be powered. This is also true in some RV's if the disconnect switch is "off". These are called "parasitic draws", do a search on them. When on, power will also be available for the fridge, lights, pumps, and fans.
You should read at "the 12V side of life" (link posted earlier) what is powered and when.
Using an onboard gauge set can be inaccurate. Put a meter on some of this to determine what is and what is not working.