Suzuki Wagon R Plus RB310 Service Manual page 221

6-2-46 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
7. Reference waveform No.7
Ignition coil No.1 and No.4 signal at engine idling
Measurement CH1: E22-10 to E23-1
terminal CH2: E23-32 to E23-1
Oscilloscope CH1: 2 V/DIV, CH2: 2 V/DIV
setting TIME: 40 ms/DIV
Measurement • After warmed up to normal operating
condition temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
2. No.1 and No.4 ignition signal
8. Reference waveform No.8
Oil control valve signal at engine idling
Measurement CH1: E22-3 to E23-1
terminal
Oscilloscope CH1: 5 V/DIV
setting TIME: 2 ms/DIV
Measurement At the moment of the ignition switch in
condition turned on
9. Reference waveform No.9
Oil control valve signal at vehicle driving
Measurement CH1: E22-3 to E23-1
terminal
Oscilloscope CH1: 5 V/DIV
setting TIME: 2 ms/DIV
Measurement • After warmed up to normal operating
condition temperature
• Drive vehicle at 20 km/h (12 mil/h) and
depress accelerator pedal fully
[A]: Accelerator pedal depress fully
[B]: Accelerator pedal depress partially
1. Oil control valve signal