B1517 5A BCM code help

[Tristen Lapish]

Hello gm hivemind. 

I have a 2014 gmc sierra double cab with the z71 towing package. Been chasing an electrical hiccup that I haven't been able to solve for over a year and am now seeking help. During start up or receiving commands from the fob before the car starts I get a "service battery:Low voltage" warning on my dash. The battery has been inspected a passed every test I can get done for free, checked the ground under the dash, and have replaced the current sensor, Obviously nothing changed. When I use a mx808 scan tool I see a bcm code of b1517 5A (implausible battery voltage). I've watched the battery voltage in various states and it shows normal readings. Has anyone ever seen this particular condition? I have no issues other then this annoying pop up notification 

[MikeBMW]

First thing that comes to mind is perhaps a legacy code has been set at some point?
Have someone with a scan tool clear all of your DTCs.
Might help, then you can go from there if it doesn't.

[Tristen Lapish]

I wish it was a history code but it is not. It just comes right back after clearing codes. 

[michael coburn]

I HAVE SAME PROBL REM 2015 SILVERADO,THINKING BROKEN WIRE,BUT I HAVENT FOUND IT YET