2006 SUZUKI SWIFT Cool

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-213
Radiator Cooling Fan High Speed Control System CheckS7RS0B1104087
Wiring Diagram
E23C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BLK/REDBLK/RED
BLK/YELBLK/YEL
BLK/YEL
BRN/WHT
12V
5V5V
2
8
E23-1
E23-60
C37-58
C37-15 C37-30
BLK/ORN
BLKBLKE23-31 BLK
BLK/RED
LT GRN
BLK/REDE23-16
E23-46
L+
L–
H–
H
+
BLU/RED
BLK
BLUWHTBLK
BLU/BLK
BLU/RED
4
GRN
GRY
E23-48
LT GRN
ORN
C37-24
C37-55
35
6
7
10
9
1
I6RS0C110044-01
1. Individual circuit fuse box No.1
5. Radiator cooling fan relay No. 3 9. “FI” fuse
2. Main relay 6. Radiator cooling fan motor10. “RDTR FAN” fuse
3. Radiator cooling fan relay No. 1 7. ECT sensor
4. Radiator cooling fan relay No. 2 8. ECM

Downloaded from www.Manualslib.com manuals search engine 1A-214 Engine General Information and Diagnosis:
Troubleshooting
WARNING!
Keep hands, tools, and clothing away from engine cooling fan to help prevent personal injury. This fan
is electric and can come on whether or not the engi ne is running. The fan can start automatically in
response to the ECT sensor with the ig nition switch at the “ON” position.

NOTE
When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special
tool to ECM and/or the ECM connectors referri ng to “Inspection of ECM and Its Circuits”.

StepAction YesNo
1 Is there DTC(s) of ECT sensor circuit (DTC P0116 / P0117 /
P0118) and/or radiator cooling fan circuit (DTC P0480)? Go to corresponding
DTC flow.Go to Step 2.
2 Low speed radiator cooling fan control circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Warm up engine until coolant temp. is 97.5 °C, 207.5 °F
or higher and A/C switch turns OFF (if equipped with A/
C). (If engine coolant temp. dose not rise, check engine
cooling system or ECT sensor.)
Is radiator cooling fan started at low speed when engine
coolant temp. reached above temp.? Go to Step 3.
Perform from Step 2 to
Step 5 in “Radiator
Cooling Fan Low Speed
Control System Check”.
3 High speed radiator cooling fan control circuit check
1) Start engine and select “DATA LIST” mode on scan tool.
2) Warm up engine until coolant temp. is 102.5 °C, 216.5 °F
or higher and A/C switch turns OFF (if equipped with A/
C). (If engine coolant temp. dose not rise, check engine
cooling system or ECT sensor.)
Is radiator cooling fan started at high speed when engine
coolant temp. reached above temp? Radiator cooling fan
control system is in
good condition.
Perform from Step 9 to
Step 14 in DTC P0480
diag. flow.
If OK, Go to Step 4.
4 Radiator cooling fan control No. 2 and No. 3 check
1) Run engine when ECT is over 102.5 °C, 216.5 °F.
2) Measure voltage between vehicle body ground and “E23-48” terminal of ECM connector.
Is voltage lower than 1.5 V? Go to Step 5.
Faulty ECM.
5 Radiator cooling fan No. 2 wire circuit check
1) Remove radiator cooling fan control relay No.2 with
ignition switch turned OFF.
2) Measure voltage between “GRY” wire terminal of disconnected radiator cooling fan control relay No. 2
connector and vehicle body ground.
Is voltage 10 – 14 V? Go to Step 6.
“GRY” wire is open or
high resistance circuit.
6 Radiator cooling fan No. 2 wire circuit check
1) Disconnect connector from radiator cooling fan motor
with ignition swit ch turned OFF.
2) Measure resistance between “BLU/BLK” wire terminal of disconnected radiator cooling fan control relay No. 2
connector and vehicle body ground.
Is resistance infinity? Go to Step 7.
“BLU/BLK” wire is
shorted to ground
circuit.

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7Radiator cooling fan No. 2 wire circuit check
1) Turn ON ignition switch.
2) Measure voltage between “BLU/BLK” wire terminal of
disconnected radiator cooling fan control relay No. 2
connector and vehicle body ground.
Is voltage 0 V? Go to Step 8. “BLU/BLK” wire is
shorted to power supply
circuit.
8 Radiator cooling fan control No. 2 check
1) Connect radiator cooling fan control relay No. 2 to
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Run engine when ECT is over 102.5 °C, 216.5 °F.
3) Measure voltage between vehicle body ground and “BLU/BLK” wire terminal of disconnected radiator
cooling fan motor connector.
Is voltage 10 – 14 V? Go to Step 10. Go to Step 9.
9 Radiator cooling fan control relay No.2 check
1) Remove radiator cooling fan control relay No.2 with
ignition switch turned OFF.
2) Check radiator cooling fan control relay No.2 referring to “Radiator Cooling Fan Relay Inspection in Section 1F”.
Is it in good condition? “BLU/BLK” wire is open
or high resistance
circuit.
Faulty radiator cooling
fan control relay No.2.
10 Radiator cooling fan No. 3 wire circuit check
1) Remove radiator cooling fan control relay No.3 with
ignition switch turned OFF.
2) Measure resistance between vehicle body ground and “BLK” wire terminal of disconnected radiator cooling fan
control relay No. 3 connector in individual circuit fuse
box No.1.
Is resistance below 1
Ω? Go to Step 11. “BLK” wire is open or
high resistance circuit.
11 Radiator cooling fan control No. 3 check
1) Connect radiator cooling fan control relay No. 3 to
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Run engine when ECT is over 102.5 °C, 216.5 °F.
3) Measure resistance between vehicle body ground and “BLU/WHT” wire terminal of disconnected radiator
cooling fan motor connector.
Is resistance below 2
Ω? Go to Step 13. Go to Step 12.
12 Radiator cooling fan control relay No. 3 check
1) Remove radiator cooling fan control relay No.3 with
ignition switch turned OFF.
2) Check radiator cooling fan control relay No.3 referring to “Radiator Cooling Fan Relay Inspection in Section 1F”.
Is it in good condition? “BLU/WHT” wire is open
or high resistance
circuit.
Faulty radiator cooling
fan control relay No.3.
13 Radiator cooling fan check
1) Check radiator cooling fan referring to “Radiator Cooling
Fan Motor On-Vehicle Inspection in Section 1F”.
Is it in good condition? Substitute a known-
good ECM and recheck.
Faulty radiator cooling
fan.
Step
Action YesNo

Downloaded from www.Manualslib.com manuals search engine 1B-1 Aux. Emission Control Devices:
Engine
Aux. Emission Control Devices
Diagnostic Information and Procedures
EGR System InspectionS7RS0B1204001
1) Connect SUZUKI scan tool to data link connector (DLC) with ignition switch turned OFF.
2) Turn ON ignition switch and erase DTC using “CLEAR DTC” in “TROUBLE CODES” menu.
3) Start engine and warm it up to normal operating temperature, then select “DATA LIST” mode on scan
tool.
4) Make sure that vehicle condition is as follows.
• Vehicle speed = 0 km/h (0 KPH)
• Engine speed ≤ 900 rpm
• Engine coolant temp. ≥ 90 °C, 164 °F
5) With engine idling (without depressing accelerator pedal), open EGR valve by using “STEP EGR” mode
in “MISC TEST” menu. In this state, as EGR valve
opening increases engine idle speed drops. If not,
possible cause is clogged EGR gas passage, stuck
or faulty EGR valve.
Repair Instructions
EVAP Canister Purge InspectionS7RS0B1206001
NOTE
Before inspection, check to make sure that gear shift lever is in neutral position (with A/T model,
selector lever in “P” range) and that parking brake lever is pulled all the way up.

1) Disconnect purge hose (1) from EVAP canister (2).
2) Place finger against the end of disconne cted hose and check that vacuum is not felt there when engine is cool and
running at idle speed. If check result is not satisfacto ry, check EVAP canister purge valve, wire harness and ECM.
1. SUZUKI scan tool display
2. EGR valve opening (0: Close, 100: Full open)
Step EGR
Step EGR Flow Duty 21 %
Step EGR (con) 23%
Engine Speed 771 RPM
Desired Idle 698 RPM
IAC Flow Duty 20.0 %
Ignition Advance 11.5 BTDC
Closed Throttle Pos ON
1 2
I4RS0B120001-01
1
2
I6RS0C120001-01

Downloaded from www.Manualslib.com manuals search engine 1C-6 Engine Electrical Devices:
APP Sensor Assembly InspectionS7RS0B1306007
Check APP sensor (main and sub) output voltage as
following steps.
1) For APP sensor (main) , arrange 3 new 1.5 V
batteries (1) in series (check that total voltage is 4.5 -
5.0 V) and connect its positive terminal to “Vin 1”
terminal (2) and negative terminal to “Ground 1”
terminal (3) of sensor. Then using voltmeter, connect
positive terminal to “Vout 1” terminal (4) of sensor
and negative terminal to battery.
2) For APP sensor (s ub), arrange 3 new 1.5 V batteries
(1) in series (check that total voltage is 4.5 - 5.0 V)
and connect its positive terminal to “Vin 2” terminal
(2) and negative terminal to “Ground 2” terminal (3)
of sensor. Then using volt meter, connect positive
terminal to “Vout 2” terminal (4) of sensor and
negative termin al to battery.
3) Measure output voltage variation while accelerator pedal is no depressed and fully depressed as
following specification.
If sensor voltage is out of specified value or does not
vary linearly as the followin g graph, replace APP sensor
assembly.
APP sensor output voltage
APP sensor (main) output voltage [A]: 0.75 – 3.85 V,
varying according to depressed extent of
accelerator pedal
APP sensor (sub) output voltage [B]: 1.55 – 4.65 V,
varying according to depressed extent of
accelerator pedal.
ECT Sensor Removal and InstallationS7RS0B1306008
Removal
1) Disconnect negative (–) cable at battery.
2) Drain coolant referring to “Cooling System Draining in Section 1F”.
WARNING!
To avoid danger of being burned, do not
remove radiator cap while engine and
radiator are still hot.
Scalding fluid and steam can be blown out
under pressure if cap is taken off too soon.

3) Remove air intake pipe.
4) Disconnect connector from ECT sensor (1).
5) Remove ECT sensor from thermostat case.
1
234I4RS0B130012-01
1
234I4RS0B130013-01
[C]: Voltage
[D]: Idle position of accelerator pedal
[E]: Fully depressed position of accelerator pedal
[C]
[B]
[D] [E] [A]
4.65 V
3.85 V
1.55 - 1.65 V
0.75 - 0.85 V
I4RS0B130010-02
1
I2RH0B130008-01

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-7
Installation
Reverse removal procedure noting the following.
• Clean mating surfaces of ECT sensor and thermostat case.
• Check O-ring for damage and replace, if necessary.
• Tighten ECT sensor (1) to specified torque.
Tightening torque
ECT sensor (a): 15 N·m (1.5 kgf-m, 11.0 lb-ft)
• Connect connector to ECT sensor securely.
• Refill coolant referring to “Cooling System Flush and
Refill in Section 1F”.
ECT Sensor InspectionS7RS0B1306009
Immerse temperature sensing part of ECT sensor (1) in
water (or ice) and measure resistance between sensor
terminals while heating water gradually.
If measured resistance doesn’t show such characteristic
as shown, replace ECT sensor.
HO2S-1 and HO2S-2 Heater On-Vehicle
Inspection
S7RS0B1306010
1) Disconnect sensor connector.
2) Using ohmmeter, measure resistance between terminals “V
B” and “GND” of sensor connector.
If found faulty, replace oxygen sensor.
NOTE
Temperature of sensor affects resistance
value largely. Make sure that sensor heater is
at correct temperature.

Resistance of oxygen sensor heater
HO2S-1: 5.0 – 6.4 Ω at 20 °C (68 °F)
HO2S-2: 11.7 – 14.5 Ω at 20 °C (68 °F)
Viewed from terminal side
3) Connect sensor co nnector securely.
HO2S-1 and HO2S-2 Removal and InstallationS7RS0B1306011
Removal
WARNING!
To avoid danger of being burned, do not
touch exhaust system when system is hot.
Oxygen sensor removal should be performed
when system is cool.

1) Disconnect negative (–) cable at battery.
2) Disconnect connector of heated oxygen sensor and
release its wire harness from clamps.
3) Perform following items before removing heated oxygen sensor.
a) For HO2S-1, remove exhaust manifold referring to “Exhaust Manifold Remo val and Installation in
Section 1K”, if necessary.
b) For HO2S-2, hoist vehicle.
4) Remove heated oxygen sensor from exhaust pipe or exhaust manifold.
[A]: Lower limit [D]: Resistance
[B]: Normal [E]: Temperature
[C]: Upper limit
1,(a)
I2RH0B130009-01
20
0
68
32 104 140 176 40 60 80
[E]
2.29 - 2.62
0.309 - 0.331
[A]
[B]
[C][D]
I5JB0A130037-01
[A]: HO2S-1 [B]: HO2S-2
I4RS0A130006-01

Downloaded from www.Manualslib.com manuals search engine 1D-1 Engine Mechanical:
Engine
Engine Mechanical
General Description
Engine Construction DescriptionS7RS0B1401001
The engine is water-cooled, in line 4 cylinders, 4 stroke cycle gasoline unit with its DOHC (Double overhead camshaft)
valve mechanism arranged for “V” type valve configurat ion and 16 valves (4 valves/one cylinder). The double
overhead camshaft is mounted over the cy linder head; it is driven from crankshaft through timing chain, and no push
rods are provided in the valve train system.
I6RS0C140001-02

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Camshaft Position Control (VVT Variable Valve Timing) System DescriptionS7RS0B1401002
System Description
The VVT system is an electronic control system which continuously vary and optimize the intake valve timing in
response to the engine operating condition.
The optimized intake valve timing produce such an air intake with high efficiency that both the higher power generation
and lower fuel consumption can be attained in the whole engine speed range from low to high. In the area of the
average engine load, low emission of nitrogen oxides (NOx) and high fuel efficiency can also be attained by making
the valve opening overlap between the intake and exhaust valves longer.
For the brief of the system operation, the intake valve timing is varied by the cam timing sprocket (1) which varies the
rotational phase between the intake camshaft (3) and sprocket . The rotor (2) in the cam timing sprocket is actuated by
switching or adjusting the hydraulic pressure applied to the chambers for the timing advancing (7) and/or retarding (6).
To switch or adjust the hydraulic pressure appropriately, ECM operates the oil control valve (12) with detecting the
engine speed, intake air value, throttle opening, engine coolant temperature and camshaft position (angle).
1
4
5
13
10
89
2
7
6
12
11
3
14
60 (variable angle)
Most retarded timing
Most advanced timing
Exhaust valve Intake valve
Crank angle
Overlap of valves
Valve lift
I3RH0B140002-01
4. Oil passage to chamber for timing retarding 8. Oil filter10. Oil pan 13. Oil return
5. Oil passage to chamber for timing advancing 9. Oil pump11. Control signal from ECM 14. Oil flow