Accelerator Pedal Position (App) Sensor
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2000 GMC Yukon XL, 2000 GMC Yukon, 2000 GMC Sierra, 2000 Chevrolet Tahoe, and 2000 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
Accelerator Pedal Position (APP) sensor, located on accelerator pedal, employs 3 independent potentiometers. APP sensor communicates desired vehicle speed to ECM when cruise control system is engaged.