Tail light issue?

[Jeegz]

Ok heres the deal. I own a 94 Ex Coupe. it has 114101 miles on it. The tail lights on the passenger light up when i turn on my lights and turn off when i turn them off. Now the issue im having is both the corner light and trunk brake lights dont light up when i hit the brakes. The drivers side and the l.e.d. in the spoiler work just fine.
My question is: Is there anything i should be looking for?? I mean i know to check the fuses and the bulbs, but is there anything i should troubleshoot if those 2 options fail??

Thanks in advance for any help!