Dash lights and all rear lights not working

Hi,

First, I attached a few pics below. The first two are the entire exterior lighting wiring schematic. Note that I highlighted the tail light fuse in pic 1. Pic 3 shows the fuse location in the fuse box.

Pics 4 and 5 are the instrument illumination schematics. Note that power goes to the instrument panel lighting from the parking light relay. So, if the fuse in pic 1 is good, remove the relay and switch it with a different one in the box having the same part number. If that isn't possible, here is a link that shows how to test a relay:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Also, when you check the fuse, in addition to making sure the fuse is good, confirm there is power to it. Here is a link to help with that:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check these things and let me know what you find or if you have other questions.

Take care and God Bless,

Joe