This sounds like the BCM is out. To be sure lets do a CAN scan which is the future of automotive repair. you can get a CAN scanner from Amazon for about $50.00. here is a video to show you how:
https://youtu.be/u-4syLc-ifQ
Here are instructions you can replaced the BCM in the diagrams below. Check out the diagrams (below). Please let us know what happens.
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Wednesday, February 10th, 2021 AT 10:28 AM