MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Vehicle Speed Sensor: Testing and Inspection
Inspection Using An Oscilloscope (Reference)
Vehicle speed signal
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PCM terminal: 3T (+) <-> 4A (-)
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Oscilloscope setting: 1.0 V/DIV (Y), 10 ms/DIV (X), DC range
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Vehicle condition: Driving 50 km/h [31 mph]
