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MPV ES
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Engine Control System
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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Vehicle speed signal
Vehicle speed signal
Fig 1: Vehicle Speed Signal Inspection By Using Oscilloscope (Reference)
Courtesy of MAZDA MOTORS CORP.
PCM terminal: 58(+)-24(-)
Oscilloscope setting: 1V/DIV (Y), 25ms/DIV(X), DC range
Vehicle condition: Driving speed 60 km/h [37 mph]