Accelerator Pedal Position Sensor

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.

The accelerator pedal position sensor is installed on the upper section of the accelerator pedal assembly and detects the depressing amount of the accelerator pedal.

Fig 1: Identifying Accelerator Pedal Position Sensor

Courtesy of NISSAN NORTH AMERICA, INC.

These sensors compose 2 systems. These use potentiometers to convert the amount of accelerator pedal depression to voltage signals and input the signals into HPCM.

HPCM judges the amount and speed of accelerator pedal depression from these signals, and controls the output of the engine and traction motor.

Fig 2: Accelerator Pedal Position Sensor Output Voltage Graph

Courtesy of NISSAN NORTH AMERICA, INC.