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Mazda
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2018
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3 Touring, 4D Hatchback, Automatic Trans
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Repair and Diagnosis
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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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CKP signal
CKP signal
Fig 1: CKP Sensor Output Voltage Wave Pattern
Courtesy of MAZDA MOTORS CORP.
PCM terminals
1AD(+)-body ground(-)
Oscilloscope setting
2 V/DIV (Y), 1 ms/DIV (X), DC range
Vehicle condition
Idle (after warm up)