Suzuki SWIFT RS415 2017, Service Manual

Page: 217 / 1257

Engine General Information and Diagnosis: 1A-169
Reference waveform No.2
No.1 fuel injector signal (2) with engine idling
Reference waveform No.3
No.2 fuel injector signal (2) with engine idling
Reference waveform No.4
EGR valve signal
Reference waveform No.5
Ignition coil No.2 and No.3 signal (2) with engine idling
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-1” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 720
q
crank angle
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-2” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 720
q
crank angle
I4RS0A110088-
I4RS0A110089-
Measurement
terminal
CH1: “C37-4” to “C37-58”
CH2: “C37-3” to “C37-58”
CH3: “C37-19” to “C37-58”
CH4: “C37-18” to “C37-58”
Oscilloscope
setting
CH1: 20 V/DIV, CH2: 20 V/DIV
CH3: 20 V/DIV, CH4: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition
Engine at cranking
1. EGR valve stepper motor coil 1 signal
2. EGR valve stepper motor coil 2 signal
3. EGR valve stepper motor coil 3 signal
4. EGR valve stepper motor coil 4 signal
5. ON signal
6. OFF signal
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-5” to “C37-58”
Oscilloscope
setting CH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 40 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 720
q
crank angle
I4RS0B110053-
I4RS0A110090-