This bulletin from Honda applies to 2006 and later Pilot vehicles, where the dashboard lights, interior or tail light are out and a blown fuse is found.
Check the RES auxiliary jack assembly. The customer may have broken off a headphone jack in the headphone connector, and when the jack from another headphone was inserted, it drove the broken jack piece deep into the assembly.
A broken jack piece can intermittently bridge the printed circuit board terminals in the assembly, causing a short and blown fuse. To check for this, pry out the assembly and unplug its connector. Shake the assembly vigorously and listen for a rattle sound.
If it rattles, a jack piece is broken off inside and you’ll need to replace the RES assembly. If no rattle is heard, reinstall the assembly and continue with normal troubleshooting.