Oscilloscope Patterns and Waveforms

A. Reading output voltage of circuit 26 and ECM.




Reading is steady or with slight fluctuation, and is under 0.3V or above 0.6V.




Reading is between 0.3V to 0.5V.

B. Reading output voltage of HO2S.




Reading is steady or with slight fluctuation, and is under 0.3V or above 0.6V.




Reading moves up and down from less than 0.3V to above 0.5V.