Oscilloscope Patterns and Waveforms

HO2S (front) heater control signal (California emission regulation applicable model)




PCM terminals
- 2BG(+)-body ground (-)
Oscilloscope setting - 5 V/DIV (Y), 50 ms/DIV (X), DC range
Vehicle condition - Idle after warm up (no load, P/S off, A/C off)

H02S (front) heater control signal (except for California emission regulation applicable model)




PCM terminals
- 2G*3, 2BG*4(+)-body ground (-)

Oscilloscope setting
- 5 V/DIV (Y), 125 ms/DIV (X), DC range

Vehicle condition
- Idle after warm up (no load, P/S off, A/C off)