Suzuki 2006 SX4 Service Manual page 187

Reference waveform No.15
A/F sensor signal with engine idling
CH1: "C01-38" to "C01-58"
Measurement
CH2: "C01-37" to "C01-58"
terminal
CH3: "C01-32" to "C01-31"
CH1: 500 mV/DIV, CH2: 500 mV/
Oscilloscope
DIV, CH3: 10 V/DIV
setting
TIME: 100 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine at specified idle speed
1. A/F sensor signal (+)
2. A/F sensor signal (–)
Reference waveform No.16
IMT valve actuator signal with engine racing
Measurement CH1: "C01-42" to "C01-58"
terminal CH2: "C01-43" to "C01-58"
Oscilloscope CH1: 10 V/DIV, CH2: 10 V/DIV
setting TIME: 200 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine racing
1. IMT valve actuator signal (+)
2. IMT valve actuator signal (–)
I7RW01110020-01
3. A/F sensor heater signal
4. One duty cycle
I7RW01110021-01
3. IMT valve open
Engine General Information and Diagnosis:
Reference waveform No.17
CMP sensor signal with engine idling
Measurement CH1: "C01-52" to "C01-58"
terminal CH2: "C01-51" to "C01-36"
Oscilloscope CH1: 2 V/DIV, CH2: 5 V/DIV
setting TIME: 20 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
2. CKP signal
3. 360° crank angle
4. 4 – 5 V
5. 36 – 6 = 30 CKP pulse
Reference waveform No.18
CMP sensor signal with engine idling
Measurement CH1: "C01-52" to "C01-58"
terminal CH2: "C01-51" to "C01-36"
Oscilloscope CH1: 2 V/DIV, CH2: 5 V/DIV
setting TIME: 10 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
2. CKP signal
3. 30° crank angle
4. 10° crank angle
5. 360° crank angle
6. 36 – 6 = 30 CKP pulse
1A-143
I7RW01110023-01
I7RW01110024-01