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Mazda
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2011
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2 Touring, 1.5 Z, Automatic
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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 MZR 1.5
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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CMP signal
CMP signal
PCM terminals
2N (+)-Negative battery terminal (-)
Oscilloscope setting
1 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
idle (after warm up)
Fig 1: CMP Signal Chart
Courtesy of MAZDA MOTORS CORP.