Oscilloscope Patterns and Waveforms

Inspection Using An Oscilloscope (Reference)




Fuel injection control signal
- PCM terminal
- No.1: 2A (+) <-> 3A (-)
- No.2: 2D (+) <-> 3A (-)
- No.3: 2G (+) <-> 3A (-)
- No.4: 2J (+) <-> 3A (-)

- Oscilloscope setting: 2.0 V/DIV (Y), 20 ms/DIV (X), DC range
- Vehicle condition: Idling after warm-up