Suzuki WagonR+ RB310 Service Manual page 616

ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-45
4. Reference waveform No.4
IAC valve signal
Measurement CH1: E23-8 to E23-1
terminal
Oscilloscope CH1: 5 V/DIV
setting TIME: 4 ms/DIV
Measurement • After warmed up to normal operating
condition temperature
• Engine at specified idle speed
5. Reference waveform No.5
EGR valve signal
Measurement CH1: E23-17 to E23-1
terminal CH2: E23-34 to E23-1
CH3: E23-16 to E23-1
CH4: E23-33 to E23-1
Oscilloscope CH1: 20 V/DIV, CH2: 20 V/DIV
setting CH3: 20 V/DIV, CH4: 20 V/DIV
TIME: 40 ms/DIV
Measurement At the moment of the ignition switch in
condition turned on
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
6. Reference waveform No.6
Ignition coil No.2 and No.3 signal at engine idling
Measurement CH1: E22-10 to E23-1
terminal CH2: E23-31 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.2 and No.3 ignition signal