APP signal

Accelerator pedal is released 

Fig 1: Inspection Graph Of APP Signal Using Oscilloscope

Courtesy of MAZDA MOTORS CORP.

Accelerator pedal is depressed 

PCM terminals 

• 1AL(+)-2AA(-)

Oscilloscope setting 

• 2.5 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition 

• Ignition switch is turned to the ON position. (engine off)
  Fig 2: Inspection Graph Of Accelerator Pedal Is Depressed Signal Using Oscilloscope

  Courtesy of MAZDA MOTORS CORP.