OCV signal

PCM terminals 

2AF(+)-2AA(-) 

Oscilloscope setting 

• 2.5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition 

• Idle after warm up (engine speed approx. 650 rpm, no load)
  Fig 1: Inspection Graph Of OCV Signal Using Oscilloscope

  Courtesy of MAZDA MOTORS CORP.