Where is the auxiliary power fuse located?

The main power fuse is under the hood inside of the main PDC. here is a guide to help check it and the location of the 100-amp main fuse in the images below:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know if you need anything else to get the problem fixed.

It sounds like one of the fuses for the BCM is out, I would turn the systems on and use a test light to check the fuses, here is a guide and the fuse location as well:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuses are all good it sounds like the BCM got shorted out but to be sure we should do a CAN scan, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here is one for about $99.00 if you need it:

https://amzn.to/3ZixY4v

You can get a preprogrammed BCM by searching Google or Ebay. Here is how to replace the BCM in case a code comes up for it. Check out the images (below). Please let us know what happens.