Suzuki Liana RH413, Service Manual

Page: 161 / 1302

Engine General Information and Diagnosis: 1A-110
C41-18 EGR valve (stepper motor coil 1)
0 – 1 V Ignition switch ON
*0 – 2 V
↑↓
8 – 14 V
(Reference waveform
No.5)
Ignition switch is turned to ST (cranking)
position.
(Output signal is active low duty pulse.
Pulse generated times depending on
vehicle condition)
C41-19 Ignition coil No.2
0 – 1 V Ignition switch turned ON
*0 – 0.6 V
↑↓
4 – 6 V
(Reference waveform
No.6)
Engine running.
(Output signal is active high pulse. Pulse
frequency varies depending on engine
speed.)
C41-20 Ignition coil No.1
0 – 1 V Ignition switch turned ON
*0 – 0.6 V
↑↓
4 – 6 V
(Reference waveform
No.7 and No.23)
Engine running.
(Output signal is active high pulse. Pulse
frequency varies depending on engine
speed.)
C41-21 Fuel injector No.2
10 – 14 V Ignition switch ON
*0 – 0.6 V
↑↓
10 – 14 V
(Reference waveform
No.8, No.11 and No.24)
Engine running.
(Output signal is active low pulse. Pulse
frequency varies depending on engine
speed.)
C41-22 5 V power source for sensors 4.75 – 5.25 V Ignition switch ON
C41-23
Crankshaft position (CKP)
sensor
*4 – 6 V
↑↓
0 – 0.5 V
(Reference waveform
No.15)
Engine running at idling with after warming
up.
(Signal from sensor is pulse. Pulse
frequency varies depending on engine
speed. (30 pulses are generated par 1
crankshaft revolution.))
C41-24 Fuel pump relay
0 – 1 V For 2 seconds after ignition switch ON
10 – 14 V After the time shown above
C41-25 Knock sensor (vehicle with EGR)
*2 – 3 V
(Reference waveform
No.13 and No.14)
Ignition switch turned ON
Run engine a 4,000 r/min. with after
warning up
C41-26
Manifold absolute pressure
sensor
*3.3 – 4.0 V
(Reference waveform
No.16)
Ignition switch turned ON with barometric
pressure at 100 kPa, 760 mmHg while
engine is stopped
*0.4 – 1.8 V
(Reference waveform
No.17)
While specified idle speed after warming
up with barometric pressure at 100 kPa,
760 mmHg
C41-27
Diag. switch terminal
(Vehicle without immobilizer)
4 – 6 V Ignition switch ON
C41-28 EGR valve (stepper motor coil 4)
0 – 1 V Ignition switch turned ON
*0 – 2 V
↑↓
8 – 14 V
(Reference waveform
No.5)
Ignition switch is turned to ST (cranking)
position.
(Output signal is active low duty pulse.
Pulse generated times depending on
vehicle condition)
C41-29 EGR valve (stepper motor coil 2)
10 – 14 V Ignition switch ON
*0 – 2 V
↑↓
8 – 14 V
(Reference waveform
No.5)
Ignition switch is turned to ST (cranking)
position.
(Output signal is active low duty pulse.
Pulse generated times depending on
vehicle condition)
C41-30
Engine start switch (Engine start
signal) 6 – 12 V While engine cranking
0 V Other than above
Terminal No. Circuit Normal Voltage Condition