This guy should look into replacing the fuse/relay for that module. Sometimes the relays can get stuck. Thats what happened to my leaf as it would get a TCM error and drain the battery every 3-4 days. Finally figured it out after a year too lol.
Hello, author here. I edited the article a bit for brevity. But, yes I started by checking all the fuses and relays. I didn't find any bad relays. Unplugging the ROOM fuse also fixed the problem, but at the expense of other interior features (like my stereo).