Oscilloscope Patterns and Waveforms

Inspection Using An Oscilloscope (Reference)




IGT control signal
- PCM terminal:
- 3F (+) <-> 4A (-)
- 3I (+) <-> 4A (-)
- Oscilloscope setting: 1.0 V/DIV (Y), 50 ms/DIV (X), DC range
- Vehicle condition: Idling after warm-up




NE signal
- PCM terminal: 3Y (+) <-> 4A (-)
- Oscilloscope setting: 1.0 V/DIV (Y), 5.0 ms/DIV (X), DC range
- Vehicle condition: Idling