2006 SUZUKI SX4 Engine General Information and Diagnosis

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-179
E01-26RED/
BLUEPS signal10 – 14 V Ignition switch turned ON.
—
0 – 1 VWith engine running at idle
speed, and steering wheel
turned to the right or left as
far as it stops.
E01-27 — — — — —
E01-28YEL/
BLKSerial
communication line
for immobilizer coil
antenna10 – 14 V Ignition switch turned ON. —
E01-29BLK/
WHTIgnition switch
signal0 – 1 V Ignition switch turned OFF.
—
10 – 14 V Ignition switch turned ON.
E01-30 WHTStarting motor
control relay output0 – 1 V Ignition switch turned ON.
—
0 – 1 VIgnition switch is turned to
ST (engine cranking)
position.
E01-31 BLK Ground for ECM Below 0.3 V Ignition switch turned ON. —
E01-32 GRNPower supply of
throttle actuator
drive circuit10 – 14 V Ignition switch turned ON. —
E01-33 — — — — —
E01-34 REDOutput for 5 V
power source of
APP sensor (sub)4.5 – 5.5 V Ignition switch turned ON. —
E01-35 BRNOutput for 5 V
power source of
APP sensor (main)4.5 – 5.5 V Ignition switch turned ON. —
E01-36 YELAPP sensor (sub)
signal0.37 – 0.38 VIgnition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
—
1.70 – 2.00 V
(“Reference
waveform No.30: ”)Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
E01-37 GRNAPP sensor (main)
signal0.75 – 0.85 VIgnition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
—
3.46 – 4.24 V
(“Reference
waveform No.30: ”)Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
E01-38 — — — — —
E01-39 — — — — —
E01-40 — — — — —
E01-41 — — — — —
E01-42 — — — — —
E01-43 — — — — —
E01-44 — — — — —
E01-45 BRNThrottle actuator
control relay output0 – 1 V Ignition switch turned ON. — Terminal
No.Wire
colorCircuit Normal voltage Condition Remarks

Downloaded from www.Manualslib.com manuals search engine 1A-180 Engine General Information and Diagnosis:
E01-46 LT GRNRadiator cooling
fan relay output10 – 14 VIgnition switch turned ON
and ECT is 97.5 °C (206
°F) or less without
operating A/C. —
0 – 2 VIgnition switch turned ON
and ECT is 100 °C (212
°F) or more.
E01-47 GRYA/C compressor
relay output
(if equipped with A/
C)10 – 14 VEngine running, A/C
switch OFF and blower
selector at OFF position.
—
0 – 1 VEngine running, A/C
switch ON and blower
selector at 1st position or
more.
E01-48 — — — — —
E01-49 — — — — —
E01-50 BLKGround for shield
wire of APP sensorBelow 0.3 V Ignition switch turned ON. —
E01-51 WHTGround for APP
sensor (sub)Below 0.3 V Ignition switch turned ON. —
E01-52 BLUGround for APP
sensor (main)Below 0.3 V Ignition switch turned ON. —
E01-53 — — — — —
E01-54 ORN Ground for sensors Below 0.3 V Ignition switch turned ON. —
E01-55RED /
BLUA/C refrigerant
pressure sensor
signal
(if equipped with A/
C)1.38 – 1.52 VEngine running, A/C
switch OFF and blower
selector at OFF position,
A/C refrigerant pressure:
800 kPa (116 psi)
— 2.15 – 2.38 VEngine running, A/C
switch ON and blower
selector at 1st position or
more, A/C refrigerant
pressure: 1400 kPa (203
psi)
2.67 – 2.95 VEngine running, A/C
switch ON and blower
selector at 1st position or
more, A/C refrigerant
pressure: 1800 kPa (261
psi)
E01-56 — — — — —
E01-57WHT/
BLKA/C evaporator
outlet air temp.
sensor signal
(if equipped with A/
C) (For manual A/C
type)3.4 – 3.7 VIgnition switch turned ON
at A/C evaporator outlet
temperature 0 °C (32 °F).
— 2.5 – 2.8 VIgnition switch turned ON
at A/C evaporator outlet
temperature 15 °C (59 °F).
1.7 – 2.0 VIgnition switch turned ON
at A/C evaporator outlet
temperature 30 °C (86 °F).
A/C evaporator
outlet air temp.
sensor signal (if
equipped with A/C)
(For automatic A/C
type)0 – 2 V Ignition switch turned ON Terminal
No.Wire
colorCircuit Normal voltage Condition Remarks

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-181
Reference waveform No.1
Fuel injector signal (1) with engine idlingReference waveform No.2
No.1 fuel injector signal (2) with engine idling E01-58RED/
BLKA/C condenser fan
relay
(if equipped with A/
C)0 – 1 VBlower speed selector ON
A/C or defroster switch ON
Engine running or Engine
coolant temperature at
more than 110 °C (230 °F)
with engine running.—
10 – 14 VExcept the above
mentioned condition with
engine running
E01-59 — — — — —
E01-60BRN/
WHTMain power supply
relay output10 – 14 V Ignition switch turned OFF.
—
0 – 2 V Ignition switch turned ON. Terminal
No.Wire
colorCircuit Normal voltage Condition Remarks
Measurement
terminalCH1: “C01-2” to “C01-58”
Oscilloscope
settingCH1: 20 V/DIV
TIME: 1 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
2. Fuel injection pulse width: 2-4 msec. 3. 10 – 14 V
I4RS0B110050-01
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-1” to “C01-58”
Oscilloscope
settingCH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
I4RS0B110051-01

Downloaded from www.Manualslib.com manuals search engine 1A-182 Engine General Information and Diagnosis:
Reference waveform No.3
No.2 fuel injector signal (2) with engine idlingReference waveform No.4
EGR valve signal
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-2” to “C01-58”
Oscilloscope
settingCH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
I4RS0B110052-01
Measurement
terminalCH1: “C01-4” to “C01-58”
CH2: “C01-3” to “C01-58”
CH3: “C01-19” to “C01-58”
CH4: “C01-18” to “C01-58”
Oscilloscope
settingCH1: 20 V/DIV, CH2: 20 V/DIV
CH3: 20 V/DIV, CH4: 20 V/DIV
TIME: 40 ms/DIV
Measurement
conditionEngine at cranking
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
5. ON signal
6. OFF signal
I4RS0B110053-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-183
Reference waveform No.5
Ignition coil No.2 and No.3 signal (2) with engine idling
Reference waveform No.6
Ignition coil signal (1) with engine idlingReference waveform No.7
Ignition coil No.1 and No.4 signal (2) with engine idling Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-5” to “C01-58”
Oscilloscope
settingCH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 40 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
Measurement
terminalCH1: “C01-6” to “C01-58”
Oscilloscope
settingCH1: 2 V/DIV
TIME: 4 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
I4RS0B110054-01
2. 4 – 6 V 3. Ignition coil pulse width: 4 – 5 msec.
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-6” to “C01-58”
Oscilloscope
settingCH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 40 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
I4RS0B110055-02
I4RS0B110056-01

Downloaded from www.Manualslib.com manuals search engine 1A-184 Engine General Information and Diagnosis:
Reference waveform No.8
Heated oxygen sensor-1 signal (1) with engine idling
Reference waveform No.9
Heated oxygen sensor-1 heater signal (2) with engine
idlingReference waveform No.10
Heated oxygen sensor-2 heater signal (4) with engine
idling
Measurement
terminalCH1: “C01-10” to “C01-57”
CH2: “C01-46” to “C01-58”
Oscilloscope
settingCH1: 500 mV/DIV, CH2: 20 V/DIV
TIME: 1 s/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
2. Heated oxygen sensor-1 heater signal
Measurement
terminalCH1: “C01-10” to “C01-57”
CH2: “C01-46” to “C01-58”
Oscilloscope
settingCH1: 500 mV/DIV, CH2: 10 V/DIV
TIME: 200 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Heated oxygen sensor-1 signal 4. ON signal
3. OFF signal 5. One duty cycle
I4RS0B110058-01
I4RS0B110059-01
Measurement
terminalCH1: “C01-11” to “C01-57”
CH2: “C01-47” to “C01-58”
Oscilloscope
settingCH1: 500 mV/DIV, CH2: 10 V/DIV
TIME: 2 s/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Vehicle driving at 60 km/h (37
mph) for 10 min.
• Engine at specified idle speed
1. Heated oxygen sensor-2 signal upper limit
2. Heated oxygen sensor-2 signal lower limit
3. Normal waveform range
I4RS0B110060-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-185
Reference waveform No.11
No.3 fuel injector signal (2) with engine idlingReference waveform No.12
No.4 fuel injector signal (2) with engine idling
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-16” to “C01-58”
Oscilloscope
settingCH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
I4RS0B110062-01
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-17” to “C01-58”
Oscilloscope
settingCH1: 5 V/DIV, CH2: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
I4RS0B110063-01

Downloaded from www.Manualslib.com manuals search engine 1A-186 Engine General Information and Diagnosis:
Reference waveform No.13
CMP sensor signal with engine idlingReference waveform No.14
CMP sensor signal with engine idling
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-21” to “C01-58”
Oscilloscope
settingCH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 20 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
2. CKP signal
3. 360° crank angle
4. 4 – 5 V
5. 36 – 6 = 30 CKP pulse
I4RS0B110064-01
Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-21” to “C01-58”
Oscilloscope
settingCH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 10 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at specified idle speed
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
2. CKP signal
3. 30° crank angle
4. 10° crank angle
5. 360° crank angle
6. 36 – 6 = 30 CKP pulse
I4RS0B110065-01