Carolina (5-9) won consecutive games for the first time since last December.
The game was played before thousands of empty seats on a dreary, misty afternoon.
Tolbert, who left San Diego as a free agent in March, capped Carolina's first two drives with 1-yard scoring runs. His second TD was set up when Philip Rivers lost a fumble, his 21st turnover this season and 46th in less than two full seasons.
Copyright 2012 by The Associated Press