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Home >> Mazda >> 2005 >> MX-5 Miata L4-1.8L DOHC >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Testing and Inspection >> Oscilloscope Patterns and Waveforms
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Oscilloscope Patterns and Waveforms

Inspection Using An Oscilloscope (Reference)

IGT control signal




- PCM terminal:
- 3F(+) <=> 4A(-)
- 31(+) <=> 4A(-)

- Oscilloscope setting: 1.0 V/DIV (Y), 50 ms/DIV (X), DC range
- Vehicle condition: Idling after warm-up.