It sounds like you have one or more BCM fuses that are out or the BCM is out causing the headlights to be dim. Here is a guide to help you test the fuses:
Here are the fuse and BCM locations. I would also check the ground for the system on the lower left of the engine.
Check the wiring as well before you replace the BCM.
Check out the diagrams (below).
Let us know what happens and please upload pictures or videos of the problem.
Images (Click to enlarge)
Monday, February 12th, 2018 AT 12:06 PM