Temperature SUZUKI SWIFT 2007 2.G Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-185
Reference waveform No.2
No.1 fuel injector signal (2) with engine idling
Reference waveform No.3
No.2 fuel injector sig nal (2) with engine idling Reference waveform No.4
EGR valve signal
Reference waveform No.5
Ignition coil No.2 and No.3 signal (2) with engine idling
Measurement
terminal
CH1: “C37-20” to “C37-58”
CH2: “C37-1” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-2” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
I6RS0C110028-01
I6RS0C110029-01
Measurement
terminal CH1: “C37-4” to “C37-58”
CH2: “C37-3” to “C37-58”
CH3: “C37-19” to “C37-58”
CH4: “C37-18” to “C37-58”
Oscilloscope
setting CH1: 20 V/DIV, CH2: 20 V/DIV
CH3: 20 V/DIV, CH4: 20 V/DIV
TIME: 40 ms/DIV
Measurement
condition Engine 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
Measurement
terminalCH1: “C37-20” to “C37-58”
CH2: “C37-5” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
I4RS0B110053-01
I6RS0C110030-01

Downloaded from www.Manualslib.com manuals search engine 1A-186 Engine General Information and Diagnosis:
Reference waveform No.6
Ignition coil signal (1) with engine idling
Reference waveform No.7
Ignition coil No.1 and No.4 signal (2) with engine idlingReference waveform No.8
Generator field coil monitor signal (1) at engine idling
Reference waveform No.9
Throttle actuator output signal with ignition switch turned
ON
Measurement
terminal
CH1: “C37-6” to “C37-58”
Oscilloscope
setting CH1: 2 V/DIV
TIME: 4 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed
2. 4 – 6 V
3. Ignition coil pulse width: 4 – 5 msec.
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-6” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
I4RS0B110055-02
I6RS0C110031-01
Measurement
terminal CH1: “C37-8” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 10 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed
• Lighting switch at CLEARANCE position
Measurement
terminal CH1: “C37-45” to “C37-58”
CH2: “C37-44” to “C37-58”
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 (“C37-45” terminal)
2. Throttle actuator drive signal (“C37-44” terminal)
3. ON signal
4. OFF signal
5. One duty cycle
I5RS0C110016-01
I4RS0B110081-02

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-187
Reference waveform No.10
HOS2-1 signal (1) with engine idling
Reference waveform No.11
HO2S-1 heater signal (2) with engine idlingReference waveform No.12
HO2S-2 heater signal (4) with engine idling
Reference waveform No.13
CAN communication line signal from TCM with ignition
switch turned ON
Measurement
terminal
CH1: “C37-10” to “C37-57”
CH2: “C37-46” to “C37-58”
Oscilloscope
setting CH1: 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. HO2S-1 heater signal
Measurement
terminal CH1: “C37-10” to “C37-57”
CH2: “C37-46” to “C37-58”
Oscilloscope
setting CH1: 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. HO2S-1 signal
3. OFF signal
4. ON signal
5. One duty cycle
I4RS0B110058-01
I4RS0B110059-01
Measurement
terminal CH1: “C37-11” to “C37-57”
CH2: “C37-47” to “C37-58”
Oscilloscope
setting CH1: 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. HO2S-2 signal upper limit
2. HO2S-2 signal lower limit
3. Normal waveform range
Measurement
terminal CH1: “C37-13” to “C37-58”
CH2: “C37-12” to “C37-58”
Oscilloscope
setting CH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 40
µs/DIV
Measurement
condition Ignition switch turned ON
(Signal pattern is depending on
engine condition)
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
I4RS0B110060-01
I4RS0B110061-01

Downloaded from www.Manualslib.com manuals search engine 1A-188 Engine General Information and Diagnosis:
Reference waveform No.14
No.3 fuel injector signal (2) with engine idling
Reference waveform No.15
No.4 fuel injector sig nal (2) with engine idling Reference waveform No.16
CMP sensor signal with engine idling
Reference waveform No.17
CMP sensor signal with engine idling
Measurement
terminal
CH1: “C37-20” to “C37-58”
CH2: “C37-16” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-17” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
I6RS0C110032-01
I6RS0C110033-01
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-21” to “C37-58”
Oscilloscope
setting CH1: 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
1. Cylinder reference signal (CMP reference signal)
2. CKP signal
3. 360 ° crank angle
4. 4 – 5 V
5. 36 – 6 = 30 CKP pulse
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-21” to “C37-58”
Oscilloscope
setting CH1: 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
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
I6RS0C110034-01
I6RS0C110035-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-189
Reference waveform No.18
MAF sensor signal (1) with engine racing
Reference waveform No.19
Generator control signal (1) at engine idlingReference waveform No.20
EVAP canister purge valve signal
Measurement
terminal CH1: “C37-26” to “C37-27”
CH2: “C37-54” to “C37-55”
Oscilloscope
setting CH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine racing
2. TP sensor signal
3. Racing
4. Idle
Measurement
terminal CH1: “C37-28” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 10 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed
• For a few sec. from headlight switch turned ON
I4RS0B110066-01
I7RS0B110015-01
Measurement
terminal CH1: “C37-29” to “C37-58”
Oscilloscope
setting CH1: 10 V/DIV
TIME: 40 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• EVAP canister purge valve setting at 52% by using “Misc Test” of
scan tool
1. ON signal
2. OFF signal
3. One duty cycle
4. 10 – 14 V
I4RS0B110067-01

Downloaded from www.Manualslib.com manuals search engine 1A-190 Engine General Information and Diagnosis:
Reference waveform No.21
Throttle actuator output signal with ignition switch turned
ONReference waveform No.22
Ignition coil signal and fuel injector signal with engine
cranking
Reference waveform No.23
MAP sensor signal (1) with ignition switch turned ON
Measurement
terminal
CH1: “C37-45” to “C37-58”
CH2: “C37-44” to “C37-58”
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 (“C37-45” terminal)
2. Throttle actuator drive signal (“C37-44” terminal)
3. ON signal
4. OFF signal
5. One duty cycle
I4RS0B110082-02
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “C37-6” to “C37-58”
CH3: “C37-1” to “C37-58”
CH4: “C37-48” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
CH3: 50 V/DIV, CH4: 10 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at cranking
1. Cylinder reference signal (CMP reference signal)
2. Ignition coil No.1 and No.4 signal
3. No.1 fuel injector signal
4. Engine start signal
Measurement
terminal CH1: “C37-53” to “C37-55”
CH2: “C37-54” to “C37-55”
Oscilloscope
setting CH1: 2 V/DIV, CH2: 1 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Ignition switch turned ON
2. TP sensor signal
I6RS0C110038-01
I4RS0B110070-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-191
Reference waveform No.24
MAP sensor signal (1) with engine racing
Reference waveform No.25
Knock sensor signal at engine speed 4000 r/min.Reference waveform No.26
Knock sensor signal at engine speed 4000 r/min.
Reference waveform No.27
Oil control valve signal with engine idling
Measurement
terminal
CH1: “C37-53” to “C37-55”
CH2: “C37-54” to “C37-55”
Oscilloscope
setting CH1: 2 V/DIV, CH2: 2 V/DIV
TIME: 200 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine racing
2. TP sensor signal
3. Racing
4. Idle
Measurement
terminal CH1: “C37-56” to “C37-58”
Oscilloscope
setting CH1: 1 V/DIV
TIME: 10 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine running at 4000 r/min.
I4RS0B110071-01
I4RS0B110072-01
Measurement
terminal CH1: “C37-56” to “C37-58”
Oscilloscope
setting CH1: 1 V/DIV
TIME: 200
µs/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine running at 4000 r/min.
Measurement
terminal CH1: “C37-60” to “C37-59”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition At the moment of the ignition switch
turned on
1. ON signal
2. OFF signal
3. Only duty cycle
I4RS0B110073-01
I4RS0B110074-01

Downloaded from www.Manualslib.com manuals search engine 1A-192 Engine General Information and Diagnosis:
Reference waveform No.28
Oil control valve signal with engine racing
Reference waveform No.29
CAN communication line signal from each control
module with ignition switch turned ONReference waveform No.30
Ignition pulse (engine revolution) signal (2) with engine
idling
Reference waveform No.31
Ignition pulse (engine revolution) signal (2) with engine
idling
Measurement
terminal
CH1: “C37-60” to “C37-59”
Oscilloscope
setting CH1: 5 V/DIV
TIME: 400
µs/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Vehicle driving at 20 km/h (12 mph) and depress accelerator
pedal fully
1. Accelerator pedal depressed fully
2. Accelerator pedal depressed partially
3. Oil control valve signal
4. ON signal
5. OFF signal
Measurement
terminal CH1: “E23-3” to “C37-58”
CH2: “E23-18” to “C37-58”
Oscilloscope
setting CH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 40
µs/DIV
Measurement
condition Ignition switch turned ON
(Signal pattern is depending on
engine condition)
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
I4RS0B110075-01
I4RS0B110076-01
Measurement
terminal
CH1: “C37-20” to “C37-58”
CH2: “E23-4” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 40 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 720 ° crank angle
Measurement
terminal CH1: “C37-20” to “C37-58”
CH2: “E23-4” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 10 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 360 ° crank angle
4. 2 to 4 msec.
5. 10 – 14 V
I6RS0C110036-01
I6RS0C110037-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-193
Reference waveform No.32
VSS signal at 30 km/h (19 mph)
Resistance Check1) Remove ECM from its bracket referring to “ECM Removal and Installation in Section 1C”.
CAUTION!
Never touch terminals of ECM itself or connect voltmeter or ohmmeter (2).

2) Connect special tool to ECM connectors securely.
NOTE
Do not connect the other connector of special tool to ECM.

3) Check resistance between each pair of terminals of disconnected connectors (1) as listed in the following table.
CAUTION!
• Be sure to connect ohmmeter probe from wire harness side of coupler.
• Be sure to turn OFF ignition switch for this check.
• Resistance in the following table represents that measured when parts temperature is 20 °C (68 °F).

Measurement
terminal CH1: “E23-25” to “C37-58”
Oscilloscope
setting CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 40 ms/DIV
Measurement
condition • After warmed up to normal
operating temperature
• Vehicle driving at 30 km/h (19 mph)
1. VSS signal for EPS control module
2. ON
3. OFF
I6RS0C110047-01
1
2
I4RS0A110086-02
Terminals CircuitStandard resistance Condition
C37-47 to E23-29 Heater of HO2S-2 4 – 15 Ω—
E23-46 to E23-1/16 Radiator cooling fan relay No.1 160 – 240 Ω —
E23-60 to E23-29 Main relay 160 – 240 ΩBattery disconnected
and ignition switch
turned ON
E23-15 to E23-29 Fuel pump relay 160 – 240 Ω —
C37-16 to E23-1/16 No.3 fuel injector 10.8 – 18.2 Ω —
C37-17 to E23-1/16 No.4 fuel injector
C37-4 to E23-1/16 EGR valve (st epping motor No.1 coil) 20 – 31 Ω —
C37-29 to E23-1/16 EVAP canister purge valve 28 – 35 Ω —
C37-2 to E23-1/16 No.2 fuel injector 10.8 – 18.2 Ω—

Downloaded from www.Manualslib.com manuals search engine 1A-204 Engine General Information and Diagnosis:
Troubleshooting
NOTE
Before using following flow, check to make sure that battery voltage is higher than 11 V. If battery
voltage is low, pressure becomes lower than specification even if fuel pump and line are in good
condition.

StepAction YesNo
1 Fuel pressure check
1) Check fuel pressure referring to “Fuel Pressure
Inspection in Section 1G”.
Is check result satisfactory? Go to Step 2.
Go to Step 5.
2 Fuel pressure check
1) Start engine and warm it up to normal operating
temperature.
2) Keep engine speed at 4000 rpm.
Does fuel pressure show about the same value as Step 1? Go to Step 3.
Go to Step 8.
3 Fuel line check
1) Check fuel pipe, fuel hose and joint for fuel leakage.
Are they in good condition? Go to Step 4.
Repair or replace
defective part.
4 Fuel line check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition? Faulty fuel pressure
regulator.
Repair or replace
damaged or damaged
part.
5 Was fuel pressure higher than specification in Step 1? Go to Step 6.Go to Step 7.
6 Fuel line check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition? Faulty fuel pressure
regulator.
Repair or replace
damaged or damaged
part.
7 Fuel pump operating sound check
1) Remove fuel filler cap and th en turn ON ignition switch.
Can you hear operating sound? Go to Step 8.
Faulty fuel pump.
8 Fuel line check
1) Check fuel pipe, fuel hose and joint for damage or
deform.
Are they in good condition? Clogged fuel filter, faulty
fuel pump, faulty fuel
pressure regulator or
fuel leakage from hose
connection in fuel tank.Repair or replace
defective part.