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CX-3 AWD
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Section 5 (Engine Control System (Service Information))
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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
WARNING:
This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Intake CMP Signal Voltage Graph
Courtesy of MAZDA MOTORS CORP.
PCM terminals
1Y(+)-body ground(-)
Oscilloscope setting
2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
Idle (after warm up)