Suzuki Ignis Service Manual page 1307

6-22 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M15 ENGINE)
1. Reference waveform No.1
Heated oxygen sensor–2 heater signal at engine idling
Measurement CH1: C63-33 to C64-1
terminal CH2: C64-3 to C64-1
Oscilloscope CH1: 500 mV/DIV, CH2: 10 V/DIV
setting TIME: 200 ms/DIV
Measurement • After warmed up to normal operating
condition
• Drive vehicle at 60 km/h (37 mil/h) for 10
• Engine at specified idle speed
1. Heated oxygen sensor–2 signal
2. Heated oxygen sensor–2 heater signal
2. Reference waveform No.2
Heated oxygen sensor–1 signal at engine idling
Measurement CH1: C63-11 to C64-1
terminal CH2: C64-4 to C64-1
Oscilloscope CH1: 500 mV/DIV, CH2: 20 V/DIV
setting TIME: 1 s/DIV
Measurement • After warmed up to normal operating
condition
• Engine at specified idle speed
1. Heated oxygen sensor–1 signal
2. Heated oxygen sensor–1 heater signal
3. Reference waveform No.3
Heated oxygen sensor–1 heater signal at engine idling
Measurement CH1: C63-11 to C64-1
terminal CH2: C64-4 to C64-1
Oscilloscope CH1: 500 mV/DIV, CH2: 10 V/DIV
setting TIME: 200 ms/DIV
Measurement • After warmed up to normal operating
condition
• Engine at specified idle speed
1. Heated oxygen sensor–1 signal
2. Heated oxygen sensor–1 heater signal
temperature
min.
temperature
temperature