It didn't at first but it certainly does now. The comfort access module is definitely turning off due to battery voltage. I'm also not seeing the glow plug emblem in the MFD in this bitterly cold Michigan weather we've been having, so several systems are being thrifted.

For the time being I pulled fuse 132 in the rear box to disable comfort access, but it's impacting several other systems; rear power hatch and radio aren't working correctly. That said I'm more worried about getting the thing started at -15F LOL

I've ordered a cable with the FTDI chip and I'll see about getting INPA installed on something so I can see what codes are coming up. I'm dealing with both passive and active DEF tank faults as well right now, so it has more than one use.

Once it warms up a bit I'll do further troubleshooting on the handles.