Heya all, new owner of a 2015 Mazda 2 here. It is getting cold and dark here in Finland in November and having functioning tail lights is a must for visibility and safety.
Just noticed that one of my tail lights was not illuminated as I was wiping off the snow of my car. Thought that since it's only the right side that is not illuminated that it must be just the bulb that has gone bad - grabbed a screwdriver and replaced it with a new one but to my surprise it didn't fix it. The brake light and indicators work just fine. The engine compartment fuse (nr.21 Tail lights, Number plate lights, Position lights) must also be fine, since all other lights are functional.

How would I proceed in diagnosing this? Would someone have a wiring diagram by any chance that I could reference to potentially find a broken wire? Are there additional fuses somewhere tucked away that I'm not aware of?

Thanks for the help!