2006 SUZUKI SX4 battery

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-4
4) Check that battery voltage is 11 V or more.
5) Measure fuel pressure at each condition.
If measured pressure is out of specification, refer to
“Fuel Pressure Check in Section 1A” and check each
possibly defective part. Replace if found defective.
a) Turn ignition switch ON to operate fuel pump and
after 2 seconds turn it OFF. Repeat this 3 or 4
times and then check fuel pressure.
Fuel pressure specification
With fuel pump operating and engine
stopped: 360 – 400 kPa (3.6 – 4.0 kgf/cm2,
51.2 – 56.9 psi)
b) Start engine and warm it up to normal operating
temperature, and measure fuel pressure at
idling.
Fuel pressure specification
At specified idle speed: 360 – 400 kPa (3.6 –
4.0 kgf/cm2, 51.2 – 56.9 psi)
c) Stop engine, and measure fuel pressure at one
minute after stopping.
Fuel pressure specification
With 1 min. after engine (fuel pump) stop
(Pressure reduces as time passes): Over 250
kPa (2.5 kgf/cm
2, 35.6 psi)
6) After checking fuel pressure, remove fuel pressure
gauge.
WARNING!
As fuel feed line is still under high fuel
pressure, make sure to release fuel pressure
according to the following procedures.
• Place fuel container under joint.
• Cover joint with rag (1) and loosen joint nut
slowly in order to release fuel pressure
gradually.

7) Remove special tools from fuel delivery pipe and fuel
feed hose.
8) Connect fuel feed hose to fuel delivery pipe and
clamp it securely.
9) With engine OFF and ignition switch ON, check for
fuel leaks.
Fuel Cut Operation InspectionS6RW0D1704002
NOTE
Before inspection, make sure that gear shift
lever is in neutral position (shift select lever
is “P” range for A/T vehicle), A/C is OFF and
parking brake lever is pulled all the way up.

1) Warm engine up to normal operating temperature.
2) While listening to sound of injector (2) by using
sound scope (1) or such, increase engine speed to
higher than 3,000 r/min.
3) Check to make sure that injector operation sound is
stop when throttle valve is closed instantly and it is
heard again when engine speed is reduced to
approx. 2,000 r/min or less.
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Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-8
6) Start engine and run it until engine stops for lack of
fuel. Repeat cranking engine 2 – 3 times for about 3
seconds each time in order to dissipate fuel pressure
in lines. Fuel connections are now safe for servicing.
7) After servicing, connect fuel pump relay (1) to relay /
fuse box and install relay / fuse box cover.
Fuel Leakage Check ProcedureS6RW0D1706004
After performing any service on fuel system, check to
make sure that there are no fuel leakages as follows.
1) Turn ON ignition switch for 3 seconds (to operate
fuel pump) and then turn it OFF.
Repeat this (ON and OFF) 3 or 4 times and apply
fuel pressure to fuel line until fuel pressure is felt by
hand placed on fuel feed hose.
2) In this state, check to see that there are no fuel
leakages from any part of fuel system.
Fuel Lines On-Vehicle InspectionS6RW0D1706005
CAUTION!
Due to the fact that fuel feed line (1) is under
high pressure, use special care when
servicing it.

Visually inspect fuel lines for evidence of fuel leakage,
hose crack and deterioration or damage.
Make sure all clamps are secure.
Replace parts as needed.
Fuel Pipe Removal and InstallationS6RW0D1706006
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.

Removal
1) Relieve fuel pressure in fuel feed line according to
“Fuel Pressure Relief Procedure”.
2) Disconnect negative cable at battery.
3) Disconnect fuel hose (3) from fuel pipe (2) at the
front and rear of each fuel pipe referring to “Fuel
Hose Disconnecting and Reconnecting”.
4) Mark the location of clamps (1) on fuel pipes (2), so
that the clamps can be reinstalled to where they
were.
5) Remove clamps (1) from vehicle body, fuel pipes and
brake pipes.
CAUTION!
Be careful not to bent and damage fuel pipes
and brake pipes when removing clamp.

6) Remove fuel pipe (2).
Installation
1) Install clamps to marked location on pipes. If clamp
is deformed, its claw is bent or broken, replace it with
new one.
2) Install pipes with pipe clamps to vehicle.
3) Connect fuel hoses and pipes to each pipe referring
to “Fuel Hose Disconnecting and Reconnecting”.
4) Connect negative cable at battery.
5) With engine OFF, turn ignition switch to ON position
and check for fuel leaks.
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2
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Downloaded from www.Manualslib.com manuals search engine 1G-9 Fuel System:
Fuel Injector On-Vehicle InspectionS6RW0D1706007
1) Using sound scope (1) or such, check operating
sound of injector (2) when engine is running or
cranking.
Cycle of operating sound should vary according to
engine speed.
If no sound or an unusual sound is heard, check
injector circuit (wire or coupler) or injector.
2) Disconnect connector (1) from injector, connect
ohmmeter between terminals of injector and check
resistance.
If resistance is out of reference value greatly,
replace.
Reference resistance of fuel injector
12.0 Ω at 20 °C, 68 °F
3) Connect connector to injector securely.
Fuel Injector Removal and InstallationS6RW0D1706008
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.

Removal
1) Relieve fuel pressure according to “Fuel Pressure
Relief Procedure”.
2) Disconnect negative cable at battery.
3) Remove air cleaner case (1) and air suction hose
(2).
4) Disconnect fuel injector couplers.
5) Disconnect fuel feed hose (4) from fuel delivery pipe
(1).
6) Remove fuel delivery pipe bolts (2).
7) Remove fuel injector(s) (3).
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Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-10
Installation
Reverse removal procedure for installation noting the
following.
• Replace injector O-ring (1) with new one using care
not to damage it.
• Check if cushion (2) is scored or damaged. If it is,
replace with new one.
• Apply thin coat of fuel to O-rings (1), and then install
injectors (3) into delivery pipe (4) and cylinder head.
Make sure that injectors rotate smoothly (6). If not,
probable cause is incorrect installation of O-ring.
Replace O-ring with new one.
• Tighten delivery pipe bolts (5) to specified torque and
make sure that injectors rotate smoothly.
Tightening torque
Fuel delivery pipe bolt (a): 25 N·m (2.5 kgf-m, 18.0
lb-ft)
• After installation, with engine OFF and ignition switch
ON, check for fuel leaks around fuel line connection.Fuel Injector InspectionS6RW0D1706009
WARNING!
• Before starting the following procedure, be
sure to observe “Precautions on Fuel
System Service” in order to reduce the risk
of fire and personal injury.
• Put injector and battery as far away as
possible in order to reduce risk of fire and
personal injury when connecting/
disconnecting test lead to/from battery.

1) Relieve fuel pressure according to “Fuel Pressure
Relief Procedure” if equipped.
2) Disconnect fuel feed hose from delivery pipe.
3) Set special tools as follows.
Special tool
(A): 09912–58421
(B): 09930–88530
(C): 09912–57610
a) Fit washer (1) (inside diameter 13.5 – 14.5
mm(0.532 – 0.570 in.)) to injector (2), and then
install injector to special tool (A).
b) Connect special tool (B) to injector.
c) Install special tool (C) to special tool (A).
d) Connect fuel feed hose to special tool (A).
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(B)
(A)
(A)(C)
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Downloaded from www.Manualslib.com manuals search engine 1G-11 Fuel System:
4) Install suitable vinyl tube onto injector nozzle to
prevent fuel from splashing out when injecting.
5) Put graduated cylinder under injector.
6) Operate fuel pump and apply fuel pressure to
injector as follows:
a) When using scan tool:
i) Connect scan tool to DLC with ignition switch
OFF.
ii) Turn ignition switch ON, clear DTC and
select “MISC TEST” mode on scan tool.
iii) Turn fuel pump ON by using scan tool.
Special tool
(A): SUZUKI scan tool (SUZUKI-SDT)
b) When not using scan tool:
i) Remove fuel pump relay from connector.
ii) Connect two terminals of relay connector
using service wire (1) as shown in figure.
CAUTION!
Check to make sure that connection is made
between correct terminals. Wrong
connection can cause damage to ECM, wire
harness, etc.

iii) Turn ignition switch ON.7) Apply battery voltage to injector (1) for 15 seconds
and measure injected fuel volume with graduated
cylinder. Test each injector two or three times. If
injected volume is out of reference value greatly,
replace injector.
Reference injected fuel volume
Approx. 46 cc/15 sec. (1.62/1.55 US/lmp oz/15
sec.)
8) Check fuel leakage from injector nozzle. Do not
operate injector for this check (but fuel pump should
be at work). If fuel leaks (1) more than the following
specifications, replace.
Fuel leakage
Less than 1 drop/min.
9) Remove injector from special tool (A) and disconnect
special tool (B) from injector.
WARNING!
As fuel feed line is still under high fuel
pressure even after inspection, removing
injector directly may cause dangerous spout
of fuel. Before removing injector, make sure
to relieve fuel pressure as follows.
1. Stop operation of fuel pump.
2. Put graduated cylinder under injector.
3. Apply battery voltage to injector until no
fuel is injected from injector.

10) Carry out Steps 3) through 9) on each injector to
obtain 4 readings.
11) After checking, disconnect fuel feed hose from
special tool (A) and remove special tool (B).
12) Connect fuel feed hose to delivery pipe.
(A) 1I5RW0C110011-01
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Downloaded from www.Manualslib.com manuals search engine 1G-13 Fuel System:
Fuel Tank Removal and InstallationS6RW0D1706011
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.

Removal
1) Relieve fuel pressure in fuel feed line according to
“Fuel Pressure Relief Procedure”.
2) Disconnect negative cable at battery.
3) Remove fuel filler cap.
4) Insert hose of a hand operated pump into fuel filler
hose (1) and drain fuel in space “A” as shown in
figure.
CAUTION!
Do not force pump hose into fuel tank.

5) Hoist vehicle, and remove clamp (2), fuel filler hose
(1) and breather hose (3) from fuel filler neck.6) Remove exhaust center pipe referring to “Exhaust
Pipe and Muffler Removal and Installation in Section
1K”.
7) Remove propeller shaft (For 4WD model) referring to
“Propeller Shaft Assembly Removal and Installation
in Section 3D”.
8) Due to absence of fuel tank drain plug, drain fuel
tank by pumping fuel out through fuel tank filler.
Use hand operated pump device to drain fuel tank.
CAUTION!
• Do not force pump hose into fuel tank.
• Never store fuel in an open container due
to possibility of fire or explosion.

9) Disconnect quick joint (fuel pipe) (1) from fuel pipes
(2) referring to “Fuel Hose Disconnecting and
Reconnecting”.
10) Support fuel tank (1) with jack (2) and remove its
mounting bolts (3).
11) Lower fuel tank a little as to disconnect wire harness
at connector (1)and ground wire (2), then remove
fuel tank.
2. Inlet check valve
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Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-14
Installation
CAUTION!
• When connecting joint, clean outside
surfaces of pipe where joint is to be
inserted, push joint into pipe till joint lock
clicks and check to ensure that pipes are
connected securely, or fuel leak may
occur.
• Never let the fuel hoses touch the ABS
sensor harness (if equipped).

1) If parts have been removed from fuel tank, install
them before installing fuel tank to vehicle.
2) Raise fuel tank (1) with jack (2) and connect fuel
pump connector (3), ground wire (4) and clamp wire
harness.
Tightening torque
Ground wire bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
3) Install fuel tank to vehicle.
Tightening torque
Fuel tank bolt (b): 45 N·m (4.5 kgf-m, 33.0 lb-ft)4) Connect fuel filler hose (1) and breather hose (2) to
filler neck (3) as shown in figure, and clamp them
securely.
Tightening torque
Fuel filler hose clamp (a): 1.5 N·m (0.15 kgf-m,
1.0 lb-ft)
5) Connect fuel feed hose (1) and vapor hose (2) to
each pipe as shown in figure, and clamp them
securely.
6) Install exhaust center pipe referring to “Exhaust Pipe
and Muffler Removal and Installation in Section 1K”.
7) Install propeller shaft (For 4WD model) referring to
“Propeller Shaft Assembly Removal and Installation
in Section 3D”.
8) Connect negative cable at battery.
9) With engine OFF, turn ignition switch to ON position
and check for fuel leaks.
Fuel Tank InspectionS6RW0D1706012
After removing fuel tank, check hoses and pipes
connected to fuel tank for leaks, loose connections,
deterioration or damage. Also check fuel pump
assembly gaskets for leaks, visually inspect fuel tank for
leaks and damage.
Replace any damaged or malconditioned parts.
(b)(b)
1
2
3
4
(a)
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Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-2
Schematic and Routing Diagram
Ignition System Wiring Circuit DiagramS6RW0D1802001
E01-60
E01-29
12V5V
5V
E01-1
E01-16
BLK/WHT
BLK/RED
BLK/RED
BLK/RED
80A
BLK/YELBLK/YEL
BLK/YEL
GRN
BLK
WHT
BRN/WHT
BLK/ORN
BLK
BLK
BLK
C01-20
BLK/RED
PNK
BLK/ORN
5V
C01-21
BLK/WHT
7
34
1
125
6 2
11 89 10
GRN/YEL
GRN/WHT
C01-6
C01-55V
5V
RED/YEL
C01-58
C01-15
C01-30
E01-31
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
13
14
15
16
17
BLK
I6RW0D180001-01
1. Ignition switch 7. No.1 spark plug 13. Relay box
2. Main relay 8. No.2 spark plug 14. “IG ACC” fuse
3. Ignition coil assembly for No.1 and No.4 spark plugs 9. No.3 spark plug 15. “FI” fuse
4. Ignition coil assembly for No.2 and No.3 spark plugs 10. No.4 spark plug 16. Junction block assembly
5. CMP sensor 11. Sensed information 17. “IG COIL” fuse
6. CKP sensor 12. Battery fuse box