Sensor-Accelerator Pedal Position: Description
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The Accelerator Pedal Position Sensor (APPS) (6) is attached to the accelerator pedal assembly under the instrument panel.
The APPS is used only with the 5.7L V-8 engine. The 5.7L engine does not use a mechanical throttle cable.