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Accelerator Pedal Position Sensor: Description and Operation

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.

The Accelerator Pedal Position Sensor (APPS) is a linear potentiometer. It provides the Powertrain Control Module (PCM) with a DC voltage signal
proportional to the angle, or position of the accelerator pedal. The APPS signal is translated (along with other sensors) to place the throttle plate (within
the throttle body) to a pre-determined position.

Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Accelerator Pedal Position Sensor > Component Information > Locations > Page 2360

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