Suzuki 2006 SX4 Service Manual page 186

1A-142 Engine General Information and Diagnosis:
Reference waveform No.11
Ignition coil No.3 signal (2) with engine idling
Measurement CH1: "C01-52" to "C01-58"
terminal CH2: "C01-19" to "C01-58"
Oscilloscope CH1: 2 V/DIV, CH2: 2 V/DIV
setting TIME: 40 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
Reference waveform No.12
Ignition coil No.2 signal (1) with engine idling
Measurement CH1: "C01-52" to "C01-58"
terminal CH2: "C01-20" to "C01-58"
Oscilloscope CH1: 2 V/DIV, CH2: 2 V/DIV
setting TIME: 40 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine at specified idle speed
2. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
Reference waveform No.13
Ignition coil No.1 signal (1) with engine idling
Measurement
terminal
Oscilloscope
setting
Measurement
condition
I5JB0A110085-01
2. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
Reference waveform No.14
MAF sensor signal (1) with engine racing
Measurement
terminal
Oscilloscope
setting
Measurement
condition
I7RW01110018-01
CH1: "C01-52" to "C01-58"
CH2: "C01-21" to "C01-58"
CH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 40 ms/DIV
• After warmed up to normal
operating temperature
• Engine at specified idle speed
CH1: "C01-26" to "C01-27"
CH2: "C01-54" to "C01-41"
CH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 200 ms/DIV
• After warmed up to normal
operating temperature
• Engine racing
2. TP sensor (main) signal
3. Racing
4. Idle
I7RW01110019-01
I5JB0A110088-02