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Engine Control System (VIN M)
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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Generator Field Coil Control Signal
Generator Field Coil Control Signal
Fig 1: Generator Field Coil Control Wave Pattern Signal
Courtesy of MAZDA MOTORS CORP.
PCM terminals
1 BP (+)-body ground (-)
Oscilloscope setting
1 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
Idle after warm up