MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Idle Speed/Throttle Actuator - Electronic: Oscilloscope Patterns and Waveforms
Inspection Using An Oscilloscope (Reference)
IAC control signal
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PCM terminal: 2P (+) <-> 2Q (-)
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Oscilloscope setting: 2.0 V/DIV (Y), 25 ms/DIV (X), DC range
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Vehicle condition: Idling after warm-up (no electrical load)
