rear bulb falilure messages

[kyblusaab]

I got the dash message one day that my rear right brake light was out and the following day a message that my rear right turn signal was out along with a rear right position failure. Auto Zone and Advance did not have the correct bulbs and I ended up getting them from the dealer. I replaced the bulbs and they did not work. Fuse is good. Suggestions for what to check next? Thanks in advance.

[Roto]

grounds

[Ratbobo]

Roto,
You say to check the grounds, I would appreciate a location such as the bulb socket or anywhere I am not thinking about that would be a common ground point. The middle hatch light works when the brakes are appllied but the rear fender bulbs show a constant bright bulb on the passenger side and a dull light on the drivers side. I guess I would'nt be asking such a lame question if the weather was'nt soo cold outside. Just trying to cut down the time troubleshooting in the cold, that all.