WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
STUCK CLOSED ESP/TCS SWITCH
(Z906) GROUND CIRCUIT OPEN
(B46) ESP/TCS CONTROL SWITCH SENSE CIRCUIT SHORTED TO GROUND