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Section 10 (Engine Control System)
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Pcm Inspection
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Inspection Using An Oscilloscope (Reference)
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Intake CMP signal
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Intake CMP signal
WARNING:
This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
PCM terminals
1 Y(+)-body ground(-)
Oscilloscope setting
2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
Idle (after warm up)
Fig 1: Display - Intake CMP Signal Waveform
Courtesy of MAZDA MOTORS CORP.