1999 Chrysler Concorde

Electrical problem
1999 Chrysler Concorde

My left tail light won't light up, I changed the bulb but nothing happened, even swithched it with the right side, bulb works in right side, not in left, but the turn siganl and brake light works on the left one (same bulb) Is there anything I can check? It can't be a fuse can it since the right one works? I don't want to buy the whole taillight assembly if there is something I should check first. Any suggestions?