That ammeter is simply too coarse to check battery drain. If you want to keep the door open, simply close the latch with a screwdriver, and the BECM will think it's shut and allow you to lock the car. Then you can access the interior fuses while the car is effectively "closed"
I bought this clamp meter for checking battery drain & charging. simply select DC amps, and zero the display. Them clamp on the relevant cable to verify the drain. On the battery terminals with engine off, it will be a few amps. Then lock the car, and wait two minutes. It should drop to << 50mA in several stages as various things go to sleep. You can also try various 12V feeds from the fusebox to see which are not dropping & isolate the offender.
Amazon product
This tester is also quite useful. Pull the fuse you want to check & place fuse in the tester. Then plug the tester into the fuse slot, and it will measure the actual current through the fuse.
https://www.ebay.co.uk/itm/Automoti...639239?hash=item5d3bb46f47:g:AocAAOSwS~FaXd5V
I bought this clamp meter for checking battery drain & charging. simply select DC amps, and zero the display. Them clamp on the relevant cable to verify the drain. On the battery terminals with engine off, it will be a few amps. Then lock the car, and wait two minutes. It should drop to << 50mA in several stages as various things go to sleep. You can also try various 12V feeds from the fusebox to see which are not dropping & isolate the offender.
Amazon product
This tester is also quite useful. Pull the fuse you want to check & place fuse in the tester. Then plug the tester into the fuse slot, and it will measure the actual current through the fuse.
https://www.ebay.co.uk/itm/Automoti...639239?hash=item5d3bb46f47:g:AocAAOSwS~FaXd5V
