2008 SUZUKI SWIFT 306

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-11
MAF and IAT Sensor On-Vehicle InspectionS7RS0B1306018
NOTE
Before performed this inspection, be sure to
read the “Precautions of ECM Circuit
Inspection in Section 1A”.

1) Disconnect negative (–) cable at battery.
2) Disconnect MAF and IAT sensor connector.
3) Connect voltmeter to “BLK/RED” wire terminal (2) of
MAF and IAT sensor connector (1) disconnected and
ground.
4) Turn ON ignition switch position and check that voltage is battery voltage.
If not, check if wire harness is open or connection is
poor.
5) Turn OFF ignition switch position and connect connector to MAF and IAT sensor.
6) Remove ECM from its bracket referring to “ECM Removal and Installation”.
7) Connect special tool between ECM and ECM connector referring to “Inspection of ECM and Its
Circuits in Section 1A”.
8) Turn ON ignition switch position and check MAF signal voltage between “C37-26” terminal circuit and
“C37-27” terminal circuit of special tool.
MAF signal voltage between “C37-26” terminal
circuit and “C37-27” termi nal circuit of special
tool
MAF signal voltage of MAF and IAT sensor with
ignition switch turned ON: 0.5 – 1.0 V
9) Start engine and check that voltage is lower than 5 V and it rises as engine speed increases.
MAF signal voltage between “C37-26” terminal
circuit and “C37-27” termi nal circuit of special
tool
MAF signal reference voltage of MAF and IAT
sensor at specified Idle speed: 1.3 – 1.8 V 10) If check result is not as
specified above, cause may
lie in wire harness, connec tor connection, MAF and
IAT sensor or ECM.
MAF and IAT Sensor Removal and InstallationS7RS0B1306019
CAUTION!
• Do not disassemble MAF and IAT sensor.
• Do not expose MAF and IAT sensor to any shock.
• Do not clean MAF and IAT sensor.
• If MAF and IAT sensor has been dropped, it should be replaced.
• Do not blow compressed air by using air gun or the like.
• Do not put finger or any other object into MAF and IAT sensor. Malfunction may
occur.

Removal
1) Disconnect negative (–) cable at battery.
2) Disconnect MAF and IAT sensor connector.
3) Remove air cleaner case (1).
4) Remove MAF and IAT sensor (2) from air cleaner case.
Installation
Reverse removal procedure noting the followings.
• Tighten MAF and IAT sensor screws to specified torque.
Tightening torque
MAF and IAT sensor screw (a): 1.5 N·m (0.15 kgf-
m, 1.1 lb-ft)
• Connect MAF and IAT sensor connector securely.
1. ECM
I3RB0A130009-01
“C37-27” “C37-26” 1
I4RS0A130009-01
1
2
I4RS0A130010-01
(a)
I4RS0A130011-01

Downloaded from www.Manualslib.com manuals search engine 1C-12 Engine Electrical Devices:
MAF and IAT Sensor InspectionS7RS0B1306020
CAUTION!
Do not heat up MAF and IAT sensor more
than 100 °C (212 °F). Otherwise, MAF and IAT
sensor will be damaged.

• Check sensor O-ring (1) for damage and deterioration. Replace as necessary.
• Blow hot air to temperature sensing part (2) of MAF and IAT sensor (3) using hot air drier (4) and measure
resistance between sensor terminals while heating air
gradually.
If measured resistance does not show such
characteristic as shown, replace MAF and IAT sensor.
IAT sensor resistance
–20 °C (–4 °F): 13.6 – 18.4 k Ω
20 °C (68 °F): 2.21 – 2.69 k Ω
60 °C (140 °F): 0.493 – 0.667 k Ω
Electric Load Current Sensor On-Vehicle
Inspection
S7RS0B1306021
Using SUZUKI Scan Tool
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Check “Battery Current” displayed on scan tool at following condition.
Battery current
Ignition switch ON: 6.5 – 7.5 A
Ignition switch ON, headlight ON: 18.6 – 19.1 A
Ignition switch ON, headlight ON and blower
motor switch is HI position: 27.1 – 27.6 A
Engine running at idle speed, headlight ON,
blower motor switch is HI position and rear
defogger switch ON: 38.1 – 41.7 A
If check result is satisfactory, electric load current sensor
is in good condition.
If check result is not satisf actory, check the following
parts and circuit.
• Electric load current sensor circuit (power, ground and output)
• Following charging system components
– Battery (refer to “Battery Inspection in Section 1J”)
– Generator (refer to “Generator Inspection in Section 1J”)
– Generator output control ci rcuit (refer to “Generator
Test (Undercharged Battery Check) in Section 1J”)
– Generator field coil monitor circuit (refer to “Generator Inspection in Section 1J”)
If electric load current sensor circuit and charging
system is in good condition, electric load current sensor
(1) is faulty.
[A]: Lower limit [D]: Resistance
[B]: Nominal [E]: Temperature
[C]: Upper limit 5. Temperature gauge
200
6832104 140 17640 60 80
(2.45)
(0.58)
1
2
3
4 5
[A] [B]
[E]
[C]
[D]
I4RS0A130012-01
2. Main fuse box
2
1
I5RS0C130001-01

Downloaded from www.Manualslib.com manuals search engine 2C-2 Rear Suspension:
Repair Instructions
Rear Wheel Alignment InspectionS7RS0B2306017
Measure toe and camber referring to “Front Wheel
Alignment Inspection and Adjustment in Section 2B”.
NOTE
Rear suspension is not adjustable structure.

Rear toe (total)
: IN 3.8 ± 3.8 mm (IN 0.1969 ± 0.1969 in)
Rear camber
: –1 ° ± 1
If measured value is out of specified value, check
following items for damage, deformation and crack.
• Rear axle (torsion beam)
• Spindle, wheel hub or wheel bearing
• Vehicle body
Rear Shock Absorber Removal and InstallationS7RS0B2306001
Removal 1) Hoist vehicle and remove rear wheels.
2) Remove tail end member trim (1) and quarter inner trim (2).
3) Support rear axle by using floor jack to prevent it from lowering.
4) Remove shock absorber lower nut.
5) Remove shock absorber upper nut. Then remove shock absorber, a pair of upper washers and lower
washer. Installation
1) Install shock absorber (1), a pair of upper washers (2) and lower washer.
Tighten new rear shock absorber upper nut (4) and
lower nut temporarily at this step.
CAUTION!
Never reuse the removed rear shock
absorber upper nut.

NOTE
A pair of upper washers (2) are installed as
shown in figure.

3. Clip
3
3 2
3
1
3
I7RS0B230001-01
3. Body panel
14
3 2
I6RS0C230005-01

Downloaded from www.Manualslib.com manuals search engine Rear Suspension: 2C-3
2) Remove floor jack (2) from rear axle.
3) Install rear wheels and tighten wheel nuts specified torque.
Tightening torque
Wheel nut: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
4) Lower hoist and vehicle in unloaded condition, tighten shock absorber nuts to specified torque.
Tightening torque
Rear shock absorber upper nut (a): 28 N·m (2.8
kgf-m, 20.0 lb-ft)
Rear shock absorber lower nut (b): 90 N·m (9.0
kgf-m, 65.0 lb-ft)
5) Install tail end member trim and quarter inner trim.Rear Shock Absorber InspectionS7RS0B2306002
• Inspect for deformation or damage.
• Inspect bushings for wear or damage.
• Inspect for evidence of oil leakage.
Replace any defective parts.
WARNING!
When handling rear shock absorber (1) in
which high-pressure gas is sealed, make
sure to observe the following precautions.
• Don’t disassemble it.
• Don’t put it into the fire.
• Don’t store it where it gets hot.
• Before disposing it, be sure to drill a hole (approximately 3 mm (0.12 in.) diameter)
(2) in it where indicated by arrow in the
figure and let gas and oil out.
Be sure to wear eye shield since the gas
itself is harmless but the absorber drill
hole debris maybe blown out.

(a)
1
(b) 2
I4RS0B230003-01
I4RS0A230005-01

Downloaded from www.Manualslib.com manuals search engine 2C-4 Rear Suspension:
Rear Shock Absorber Bush Removal and
Installation
S7RS0B2306003
Removal1) Remove rear shock absorber referring to “Rear Shock Absorber Remova l and Installation”.
2) Remove rear shock absorber bushes (1).
Installation 1) Install rear shock absorber bushes (1).
NOTE
For proper installing direction of shock
absorber bushes (1), refer to the figure.

2) Install rear shock absorber referring to “Rear Shock Absorber Removal and Installation”.
Rear Shock Absorber Bush InspectionS7RS0B2306004
Inspect for cracks, deformation or damage. Replace any
defective parts.
Rear Coil Spring Removal and InstallationS7RS0B2306005
Removal
1) Hoist vehicle and remove rear wheels.
2) Support rear axle (1) by using two floor jacks (2) to prevent it from lowering.
3) Detach shock absorbers (1) lower side (right & left) from rear axle.
4) Lower rear axle gradually as far down as the coil spring (2) can be removed.
CAUTION!
Be careful not to lowe r rear axle down too
much.
It may cause damage to brake flexible hose,
wheel speed sensor lead wire and parking
brake cable.

5) Remove coil spring (2).
2. Body panel
1
1
I4RS0A230006-01
1
2
I4RS0A230007-01
I4RS0A230008-01
1
2
2
I6RS0C230006-01
1
2
I4RS0A230010-01

Downloaded from www.Manualslib.com manuals search engine Rear Suspension: 2C-5
Installation1) Install coil spring (1) on spring seat (2) of rear axle and mate spring open end with stepped part (3) of
spring lower seat and raise rear axle.
2) Install shock absorbers (1) lower side (right & left) to rear axle.
Install washers and tighten shock absorber lower
nuts (2) temporarily by hand at this step. 3) Remove floor jacks from rear axle.
4) Install wheels and tighten wheel nuts to specified
torque.
Tightening torque
Wheel nut: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
5) Lower hoist and vehicle in unloaded condition, tighten shock absorber lower nuts (a) to specified
torque.
Tightening torque
Rear shock absorber lower nut (a): 90 N·m (9.0
kgf-m, 65.0 lb-ft)
Spring Upper Seat / Spring Lower Seat
Inspection
S7RS0B2306006
Inspect for cracks, deformation or damage.
Replace any defective part.
F: Vehicle front
I4RS0A230011-01
1
2
I4RS0A230012-01
(a)
I4RS0A230013-01
I4RS0A230015-01

Downloaded from www.Manualslib.com manuals search engine 2C-6 Rear Suspension:
Spring Upper Seat and Lower Seat Removal and
Installation
S7RS0B2306007
Removal1) Remove coil spring referring to “Rear Coil Spring Removal and Installation”.
2) Remove spring upper seat (1) and lower seat (2).
Installation 1) Install spring upper seat (1) and lower seat (2).
NOTE
For proper installing direction of spring
upper seat (1) and lower seat (2), refer to the
figure.

2) Install coil spring referr ing to “Rear Coil Spring
Removal and Installation”.
Rear Axle Removal and InstallationS7RS0B2306008
Removal
1) Hoist vehicle and remove rear wheels (right & left).
2) Disconnect rear brake caliper flexible hoses (1) (right & left) from brake pipes (2) and put bleeder plug cap
(3) onto pipe (2) prevent fluid from spilling.
CAUTION!
Do not drop brake fluid onto painted surface.

1
2
I4RS0A230016-01
I3RM0A230021-01
A: Vehicle body side (Upper side)
F: Vehicle front3. Stepped part
I4RS0A230017-01
1
2
2 3
I6RS0B230002-01

Downloaded from www.Manualslib.com manuals search engine Rear Suspension: 2C-9
12) Fill reservoir with brake fluid and bleed brake system. For bleeding operation, see “Air Bleeding of
Brake System in Section 4A”.
13) Install wheel and tighten wheel nuts to specified torque.
Tightening torque
Wheel nut: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
14) Adjust parking brake cable. For adjustment, refer to “Parking Brake Inspection and Adjustment in Section
4D”.
15) Lower hoist and bounce vehicle up and down several times to stabilize suspension.
16) Tighten shock ab sorber lower nuts (1) and trailing
arm bolts (2) to specified torque.
NOTE
When tightening these nuts and bolts, be
sure that vehicle is not on hoist and in
unloaded condition.

Tightening torque
Rear shock absorber lower nut (a): 90 N·m (9.0
kgf-m, 65.0 lb-ft)
Trailing arm bolt (b): 73 N·m (7.3 kgf-m, 53.0 lb-
ft)
17) Perform brake test (foot brake and parking brake).
18) Check each installed part for fluid leakage.
Trailing Arm, Rear Axle and Coil Spring
Inspection
S7RS0B2306009
• Inspect for cracks, deformation or damage.
• Inspect bushing for damage, wear or breakage.
Replace any defective part.
Rear Axle Bush InspectionS7RS0B2306010
Inspect for cracks, deformation or damage. Replace any
defective part.
1, (a)
2, (b)
I6RS0B230008-01
I4RS0A230031-01