There are a couple other fuses which share circuits with fuse 21. The first that caught my eye was fuse 10 which also maintains the OBC and SI board, and the reverse lights. Since the reverse light switch has been known to cause current draw (either from corrosion of the plugs or failure of the switch) I would check there. Unplug it and see what happens to your draw!
Fuse 27 is also linked to the OBC but #10 sounds more likely to be related
Fuse 27 is also linked to the OBC but #10 sounds more likely to be related
Comment