WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Throttle Position Sensor 2 Circuit Schematic
Courtesy of DAIMLERCHRYSLER CORP.
For a complete Engine wiring diagram refer to appropriate Wiring Diagram article.