I have a old Fluke Meter that when I connect it to the circuit it will not read current . . . ..
I also have one of the free meters from Harbor Freight. When I connect it between neg battery terminal and neg lad I get a reading of .150 amps. This is after about 90 sec when the current was much higher.
Ok I pulled all the fuses one at a time and at no point did not I see a change in the current draw.
I pulled each of the small flat type fuses and all the square type fuses.
When I pulled J13 ( Ignition Off Draw (IOD) ) the current draw did not drop/change but when I plugged it back in the current draw jumped to about 3 amp and then dropped off after about 90 sec
I even pulled the large CB1 and it had no effect on the current flow either.