Suzuki SWIFT RS415 2017 Service Manual page 222

1A-174 Engine General Information and Diagnosis:
Reference waveform No.22
Manifold absolute pressure sensor signal (1) with engine
racing
Measurement CH1: "C37-53" to "C37-55"
terminal CH2: "C37-54" to "C37-55"
Oscilloscope CH1: 2 V/DIV, CH2: 2 V/DIV
setting TIME: 200 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Engine racing
2. Throttle position sensor signal
3. Racing
4. Idle
Reference waveform No.23
Knock sensor signal at engine speed 4000 r/min.
Measurement
CH1: "C37-56" to "C37-58"
terminal
Oscilloscope CH1: 1 V/DIV
setting TIME: 10 ms/DIV
• After warmed up to normal
Measurement
operating temperature
condition
• Run engine at 4000 r/min.
Reference waveform No.24
Knock sensor signal at engine speed 4000 r/min.
Measurement
terminal
Oscilloscope
setting
Measurement
condition
I4RS0B110071-
Reference waveform No.25
Oil control valve signal with engine idling (for M15
engine model)
Measurement
terminal
Oscilloscope
setting
Measurement
condition
1. ON signal
2. OFF signal
3. Only duty cycle
I4RS0B110072-
CH1: "C37-56" to "C37-58"
CH1: 1 V/DIV
TIME: 200 s/DIV
• After warmed up to normal
operating temperature
• Run engine at 4000 r/min.
CH1: "C37-60" to "C37-59"
CH1: 5 V/DIV
TIME: 2 ms/DIV
At the moment of the ignition switch
turned on
I4RS0B110073-
I4RS0B110074-