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Mazda
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2021
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3 Base
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Engine Control System (VIN 7 & VIN L)
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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Drive-by-wire control (+) signal
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Notes
Drive-by-wire control (+) signal: Notes
NOTE:
The wave pattern is either type A or B depending on the PCM specifications.