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Reference waveform No.2

WARNING: This page is about a different car, the 2008 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

Oxygen signal (1) and heater output signal (2) of heated oxygen sensor-2:

WAVEFORM REFERENCE

Measurement terminal Bank-1
CH1: C37-1 or C37-2 to C37-81
CH2: C37-3 to C37-81
CH3: C37-46 to C37-81
Bank-2
CH1: C37-20 or C37-21 to C37-81
CH2: C37-22 to C37-81
CH3: C37-46 to C37-81
Oscilloscope setting CH1: 10 V/DIV, CH2: 500 mV/DIV,
CH3: 5 V/DIV
TIME: 400 ms/DIV
Measurement condition Engine is racing after warmed up engine.
Fig 1: Identifying Signal Waveform No.2
G05472755Courtesy of SUZUKI OF AMERICA CORP.