Brake light and turn signal not working

The brake and turn signal lights are controlled by the body control module (BCM). There is an internal transistor that will open that circuit when there is an issue on that circuit. Usually it will reset when you replace the faulty bulb, or clearing the codes in that module, unless the transistor is faulty (usually due to faulty trailer wiring) or there have been too many times that the transistor has been tripped, because the body control module has a trip counter that has a preset amount before it gets bricked. If there is any trailer brake wiring attached to the vehicle, try removing it, then inspect the fuse again. I have attached an illustrated diagram that should help you out.