OCV signal

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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.