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Mazda
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2018
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CX-5 Touring, FWD
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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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Intake CMP signal
Intake CMP signal
Fig 1: Exhaust CMP Output Voltage Signal Graph
Courtesy of MAZDA MOTORS CORP.
PCM terminals
1BT (+) -body ground (-)
Oscilloscope setting
2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
Idle (after warm up)