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2005
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MPV ES
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Repair and Diagnosis (Single Page)
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Engine Performance
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Engine Control Systems
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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Water temperature gauge control signal
Water temperature gauge control signal
PCM terminal: 70 (+)-100 (-)
Oscilloscope setting: 1V/DIV (Y), 40ms/DIV (X), DC range
Vehicle condition: idle after warm up
Fig 1: Identifying Oscilloscope Graph Water Temperature Gauge Control Signal
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.