It sounds like the BCM, or the ignition switch has gone out. When you said you checked the fuses did you test them for power as well?
Here is a guide to help you check fuse #8 in the main battery fuse block:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
The ignition switch feeds directly into the BCM so please check the fuse DLIS in the fuse panel on the left side of the dash (5 amp). Next, we should do a CAN scan to see what comes up. 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
Here is how to change the BCM and ignition switch out in the images below. You can get a preprogrammed unit by searching Google or Ebay. Also, I have a wiring diagram that shows the main power feeds for the truck, please check them for power as well. Check out the images (below). Please let us know what you find. We are interested to see what it is.
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Thursday, May 4th, 2023 AT 10:11 AM