brake light problem

left brake light works, and third brake light works, however no right brake light, all other lights work(hazards, turn, tail etc. on both sides) i have no power at the connector for the right light assy, any ideas where does the right side get its power from?

Here This might help:
http://i232.photobucket.com/albums/ee46/MaImpala/Schematic.jpg


Sounds like a problem in the Hazard flasher or Multifunction switch.