My dashboard lights, rear brake and turn lights all went out. The fuses appear to be fine. Suggestions?

AutoZone have some funny ideas!

Problems like this are very hard to diagnose. Call out a local auto-electrician. You need someone with a pro grade scan tool and access to wiring schematics and the knowledge to use both.

Your post gives the year of the truck as a 1993 and 1985...
The light on the dash may be your parking brake.

on older nissans dashoard and tail light is on same fuse. can you please check fuses on drivers side under your steering wheel? check #16.

brake switch under dash is bad

check the fuses.

the most common cause of this is either a sticking 4 way flasher switch or the turn signal switch itself.

Check the brake light switch located under the dash, and is energized by depressing the brake pedal.

TURN SIGNALS WILL FEED BACK THROUGH THE TURN SIGNAL SWITCH.THEY ARE INDEPENDENT OUT SIDE ON THE CAR BUT NOT IN THE SIGNAL SWITCH.REPLACE THE SIGNAL SWITCH

could be both unrelated issues at the same time

worn indicator stalk
faulty relays

adjust or test the brake pedal stop light switch

Might be the multifunction switch on the steering column. Also called a combination switch.