My left rear brake light works but my turn signal and back up light do not. I replaced the bulbs and still nothing. Is there a separate fuse for the turn signal and brake light on the same side? Also my front let turn signal quit to.

I would think less a "fuse" concern and more a wiring or socket concern. Check for power and ground at the light sockets when the lights should be "on". Trace backwards accordingly; and I know it also sounds silly, but make sure the correct bulb type is installed as well.

Brake light AND signal light uses same wiring AND bulb! I'll leave it at that..