Suzuki 2006 SX4, Service Manual

Page: 188 / 1478

1A-144 Engine General Information and Diagnosis:
Reference waveform No.19
Throttle actuator output signal with ignition switch turned
ON
Reference waveform No.20
Throttle actuator output signal with ignition switch turned
ON
Reference waveform No.21
Knock sensor signal at engine speed 4000 r/min.
Measurement
terminal CH1: “C01-45” to “C01-58”
CH2: “C01-44” to “C01-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Ignition switch turned ON and
accelerator pedal at idle position
1. Throttle actuator drive signal (“C01-45” terminal)
2. Throttle actuator drive signal (“C01-44” terminal)
3. ON signal
4. OFF signal
5. One duty cycle
I7RW01110025-01
Measurement
terminal CH1: “C01-45” to “C01-58”
CH2: “C01-44” to “C01-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Ignition switch turned ON and
accelerator pedal at full
depressed position
1. Throttle actuator drive signal (“C01-45” terminal)
2. Throttle actuator drive signal (“C01-44” terminal)
3. ON signal
4. OFF signal
5. One duty cycle
Measurement
terminal
CH1: “C01-56” to “C01-58”
Oscilloscope
setting CH1: 1 V/DIV
TIME: 10 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Run engine at 4000 r/min.
I7RW01110027-01
I4RS0B110072-01