July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Oscilloscope Patterns and Waveforms
Inspection Using An Oscilloscope (Reference)
HO2S signal (front, RH/LH) -PCM terminal: 18, 19 (+)-20 (-) -Oscilloscope setting: 0.2V/DIV (Y), 200 ms/DIV (X), DC range -Vehicle condition: idle after warm up