waveforms > sensors > accelerator pedal position > Accelerator Pedal Position

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Accelerator Pedal Position Waveform Notes

In this example the Accelerator Pedal Position sensor (APP) is of the potentiometer type. It receives two reference voltages from the Powertrain Control Module (PCM), having two ground wires and two signal wires that send a varying voltage back to the PCM relating to accelerator pedal position. The signal voltage sent back to the PCM may vary from manufacturer to manufacturer but will probably never be greater than 5 volts.