If they all have gone out, it could be related to the totally integrated power module (TIPM). Let's start easy. I need you to check the red wire at the brake light switch to see if there is power to it. (See pic 1)
If you look at pic 2, I highlighted wires at the TIPM. You can see that each of them go to the components you are having trouble with. Now, if the brake light switch doesn't have power, I need you to go back to the fuse box and check fuses 3, 17, 33. Not only do we need to check the fuse, but I need you to confirm if there is power in and out of the fuse. You can use a test light to do it. I put a B, S, H next to what each fuse is for, brake, signal, hazard.
If there is no power, we need to start checking pins at the TIPM. There are so many of them and they are so small, often times they will corrode and break.
Let me know what you find or if you have other questions.
Images (Click to enlarge)
Saturday, October 24th, 2020 AT 10:02 PM