2019 Platinum Parasitic drain from ECU-DCC NO. 2 Fuse

Hey guy's,

I've had a parasitic drain plaguing my truck for a few years now and I'm stumped at this point.
I took it into a 12volt automotive shop and they isolated the drain to the ECU-DCC No2 fuse.
The drain is about 320 milli amps. When I pull that fuse, the drain disappears.
It is enough to kill my battery after a few days and in winter, more frequent than that.

I have an aftermarket head unit, maestro, audio amps, alarm/remote start and a dash cam, all of which I disconnected individually to see if they were contributing to the drain.
After disconnecting each of my aftermarket accessories, the drain remained at 320milli amps.

Page 18 of the Tundra fuse list here, shows a ton of stuff for the ECU-DCC No2 fuse: https://www.tundras.com/attachments/2021-tundra-ewd-em27m0u-4-0-fuse-list-pdf.531491/

How do I go about isolating this further? I'd like to try an figure this out on my own, rather than take it in to my dealer, so any help is highly appreciated!
Thanks

 

Were you able to find fix the issue?

 

Regretfully no..
I ended up wiring in a Socket fuse with a killswitch.. So I just flick the switch at night to kill power to that circuit. It's not a great solution, but it works.. I'm almost certain it is the Viper alarm system.