Suzuki Liana RH413, Service Manual

Page: 160 / 1302

1A-109 Engine General Information and Diagnosis:
C41-6 Idle air control valve
*0 – 2 V
↑↓
8 – 14 V
(Reference waveform
No.4)
Engine running at idling with after warming
up.
(Output signal is active low duty pulse.
Duty ratio varies as engine load and
desired idle speed.)
C41-7
Heater of HO2S-1 (vehicle with
EGR)
10 – 14 V Ignition switch ON
*0 – 2 V
↑↓
13.5 – 14.8 V
(Reference waveform
No.2 and No.3
Engine running at idling with after warming
up.
(Output signal is active low duty pulse.
Duty ratio varies depending on engine
condition.)
C41-8 Fuel injector No.4
10 – 14 V Ignition switch ON
*0 – 0.6 V
↑↓
10 – 14 V
(Reference waveform
No.8, No.9 and No.24)
Engine running.
(Output signal is active low pulse. Pulse
frequency varies depending on engine
speed.)
C41-9 Fuel injector No.1
10 – 14 V Ignition switch ON
*0 – 0.6 V
↑↓
10 – 14 V
(Reference waveform
No.8, No.12, No.23 and
No.24)
Engine running.
(Output signal is active low pulse. Pulse
frequency varies depending on engine
speed.)
C41-10 Sensor ground Below 0.3 V Ignition switch turned ON
C41-11 Camshaft position (CMP) sensor
*0 – 6 V
↑↓
4 – 6 V
(Reference waveform
No.15)
Engine running at idling with after warming
up.
(Pulse frequency varies depending on
engine speed. (6 pulses are generated par
1 camshaft revolution.))
C41-12 Generator control signal Min. 4.8 V Ignition switch ON
C41-13
Heated oxygen sensor-1 (vehicle
with EGR system)
*Deflects between over
0.5 V and under 0.45 V
(Reference waveform
No.2 and No.3
While engine running at 2,000 r/min. for 1
min. or longer after warmed up
CO adjusting resistor (if
equipped)
— —
C41-14
Engine coolant temperature
(ECT) sensor
1.75 – 2.1 V
Ignition switch turned ON at ECT 40
°
C
(104
°
F)
0.67 – 0.84 V
Ignition switch turned ON at ECT 80
°
C
(176
°
F)
0.32 – 0.41 V
Ignition switch turned ON at ECT 110
°
C
(230
°
F)
C41-15
Intake air temperature (IAT)
sensor
3.18 – 3.67 V
Ignition switch turned ON at IAT 0
°
C (32
°
F)
1.34 – 1.63 V
Ignition switch turned ON at ECT 40
°
C
(104
°
F)
0.47 – 0.59 V
Ignition switch turned ON at ECT 80
°
C
(176
°
F)
C41-16 Throttle position sensor
0.2 – 1.0 V
Ignition switch ON
Throttle valve at idle position
2.8 – 4.8 V
Ignition switch ON
Throttle valve at full open position
C41-17 EGR valve (stepper motor coil 3)
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)
Terminal No. Circuit Normal Voltage Condition