2008 SUZUKI SWIFT Turn

Downloaded from www.Manualslib.com manuals search engine Precautions: 00-8
Precautions for Electrical Circuit ServiceS7RS0B0000008
• When replacing a fuse, make sure to use a fuse of the specified capacity. Use of a fuse with a larger capacity
will cause a damage to the electrical parts and a fire.
• When disconnecting and connecting coupler, make sure to turn ignition switch OFF, or electronic parts
may get damaged.
• When disconnecting connectors, never pull the wiring harness. Unlock the connecto r lock first and then pull
them apart by holding connectors themselves. • When connecting connectors, also hold connectors
and put them together until th ey lock securely (a click
is heard).
• When installing the wiring harness, fix it with clamps so that no slack is left.
• When installing vehicle parts, be careful so that the wiring harness is not interfered with or caught by any
other part.
• To avoid damage to the harnes s, protect its part which
may contact against a part forming a sharp angle by
winding tape or the like around it.
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Downloaded from www.Manualslib.com manuals search engine Precautions: 00-10
Air Bag WarningS7RS0B0000009
WARNING!
For vehicles equipped with Supplemental
Restraint (Air Bag) System:
• Service on and around the air bag system components or wiring must be performed
only by an authorized SUZUKI dealer. Refer
to “Air Bag System Components, Wiring
and Connectors Location in Section 8B” in
order to confirm whether you are
performing service on or near the air bag
system components or wiring. Please
observe all WARNINGS in Air Bag System
section and “Precautions on Service and
Diagnosis of Air Bag System in Section
8B” before performing service on or
around the air bag system components or
wiring. Failure to follow WARNINGS could
result in unintentional activation of the
system or could render the system
inoperative. Either of these two conditions
may result in severe injury.
• Technical service work must be started at least 90 seconds after the ignition switch is
turned to the LOCK position and the
negative cable is disconnected from the
battery. Otherwise, the system may be
activated by reserve energy in the Sensing
and Diagnostic Module (SDM).

Air Bag System Service WarningS7RS0B0000010
WARNING!
• Service on or around the air bag system components or wiring must be performed
only by an authorized SUZUKI dealer.
Please observe all WARNINGS in Air Bag
System section and “Precautions on
Service and Diagnosis of Air Bag System
in Section 8B” before performing service
on or around the air bag system
components or wiring. Failure to follow
WARNINGS could result in unintended
activation of the system or could render
the system inoperative. Either of these two
conditions may result in severe injury.
• The procedures in the air bag system section must be followed in the order
listed to disable the air bag system
temporarily and prevent false DTCs from
setting. Failure to follow procedures could
result in possible activation of the air bag
system, personal injury or otherwise
unneeded air bag system repairs.

Fastener CautionS7RS0B0000011
CAUTION!
When fasteners are removed, always reinstall
them at the same location from which they
were removed. If a fastener needs to be
replaced, use the correct part number
fastener for that application. If the correct
part number fastener is not available, a
fastener of equal size and strength (or
stronger) may be used. Fasteners that are not
reused, and those requiring thread-locking
compound, will be called out. The correct
torque value must be used when installing
fasteners that require it. If the conditions are
not followed, parts or system damage could
result.

Suspension CautionS7RS0B0000012
CAUTION!
• All suspension fasteners are an important attaching part in that it could affect the
performance of vital parts and systems,
and/or could result in major repair
expense. They must be replaced with one
of the same part number or with an
equivalent part if replacement becomes
necessary. Do not use a replacement part
of lesser quality or substitute design.
Torque values must be used as specified
during reassembly to assure proper
retention of this part.
• Never attempt to heat, quench or straighten any suspension part. Replace it
with a new part or damage to the part may
result.

Wheels and Tires CautionS7RS0B0000013
CAUTION!
All wheel fasteners are important attaching
parts in that they could affect the
performance of vital parts and systems, and/
or could result in major repair expense. They
must be replaced with one of the same part
number or with an eq uivalent part if
replacement becomes necessary. Do not use
a replacement part of lesser quality or
substitute design. Torque values must be
used as specified during reassembly to
assure proper retention of all parts.
There is to be no welding as it may result in
extensive damage and weakening of the
metal.

Downloaded from www.Manualslib.com manuals search engine 0B-10 Maintenance and Lubrication:
Steering System InspectionS7RS0B0206024
1) Check steering wheel for play and rattle, holding vehicle straight on ground.
Steering wheel play
“a”: 0 – 30 mm (0 – 1.1 in.)
2) Check bolts and nuts for tightness and retighten them as necessary. Repair or replace defective
parts, if any.
3) Check steering linkage for looseness and damage. Repair or replace defective parts, if any.
4) Check boots (1) and (2) of steering linkage and steering gear case for damage (leak, detachment,
tear, etc.). If damage is fo und, replace defective boot
with new one.
If any dent is found on steering gear case boots,
correct it to original shape by turning steering wheel
to the right or left as far as it stops and holding it for a
few seconds.
5) Check universal joints (3) of steering shaft for rattle and damage. If rattle or damage is found, replace
defective part with a new one.
6) Check that steering wheel can be turned fully to the
right and left. Repair or replace defective parts, if
any.
7) If equipped with power steering system, check also, in addition to check items, that steering wheel can be
turned fully to the right and left more lightly when
engine is running at idle speed than when it is
stopped. Repair, if found faulty.
8) Check wheel alignment referring to “Front Wheel Alignment Inspection and Adjustment in Section 2B”.
Drive Shaft (Axle) Boots InspectionS7RS0B0206025
Check drive shaft boots (wheel side and differential side)
for leaks, detachment, tear or other damage.
Replace defective parts as necessary.
Manual Transaxle Oil InspectionS7RS0B0206026
1) Inspect transaxle case for evidence of oil leakage. Repair leaky point if any.
2) Make sure that vehicle is placed level for oil level
check.
3) Remove oil filler/leve l plug (1) of transaxle.
4) Check oil level. Oil level can be checked roughly by means of filler/
level plug hole. That is, if oil flows out of level plug
hole or if oil level is found up to hole when level plug
is removed, oil is properly filled.
If oil is found insufficient, po ur specified oil up to level
hole. For specified oil, refe r to “Manual Transaxle Oil
Change in Section 5B”.
5) Apply sealant to filler/leve l plug and tighten it to
specified torque.
Manual Transaxle Oil ReplacementS7RS0B0206027
Change transaxle oil with new specified oil referring to
“Manual Transaxle Oil Change in Section 5B”.
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Downloaded from www.Manualslib.com manuals search engine 0B-12 Maintenance and Lubrication:
HVAC Air Filter (If Equipped) InspectionS7RS0B0206032
1) Remove HVAC air filter from HVAC unit referring to
“HVAC Air Filter Removal and Installation (If
Equipped) in Section 7A”.
2) Check for dirt and dust. If HVAC air filter is excessively dirty, replace HVAC air filter with new
one. If not, go to next step.
3) Blow compressed air on the air outlet side of HVAC air filter for removing dust.
4) Install HVAC air filter in to HVAC unit referring to
“HVAC Air Filter Removal and Installation (If
Equipped) in Section 7A”.
HVAC Air Filter (If Equipped) ReplacementS7RS0B0206033
Replace HVAC air filter with new one referring to “HVAC
Air Filter Removal and Installation (If Equipped) in
Section 7A”.
Final Inspection for Maintenance ServiceS7RS0B0206034
WARNING!
When carrying out road tests, select a safe
place where no man or no running vehicle is
seen so as to prevent any accident.

Seats
Check that seat slides smoot hly and locks securely at
any position. Also check that reclining mechanism of
front seat back allows it to be locked at any angle.
Seat Belt
Inspect belt system including webbing, buckles, latch
plates, retractors and anchors for damage or wear.
Check that seat belt is securely locked. If “REPLACE
BELT” label on seat belt is visible, replace belt.
Battery Electrolyte Level Check
Check that the electrolyte le vel of all battery cells is
between the upper and lower level lines on the case. If
battery is equipped with built-in indicator, check battery
condition by the indicator. Accelerator Pedal Operation
Check that pedal operates
smoothly without getting
caught or interfered by any other part.
Engine Start
Check engine start for readiness.
WARNING!
Before performing th e following check, be
sure to have enough room around the
vehicle. Then, firmly apply both the parking
brake and the regular brakes. Do not use the
accelerator pedal. If the engine starts, be
ready to turn off the ignition promptly. Take
these precautions because the vehicle could
move without warning and possibly cause
personal injury or property damage.

On automatic transaxle vehicles, try to start the engine in
each select lever position. The starting motor should
crank only in “P” (Park) or “N” (Neutral).
On manual transaxle vehicles, place the shift lever in
“Neutral,” depress clutch pedal fully and try to start.
On Automated Manual Transaxl e vehicles, try to start
the engine in each select le ver position. The starting
motor should crank only when select lever is in “N”
(Neutral) and brake pedal is depressed.
Exhaust System Check
Check for leakage, cracks or loose supports.
Clutch (for Manual Transaxle)
Check for the following.
• Clutch is completely released when depressing clutch pedal,
• No slipping clutch occurs when releasing pedal and accelerating.
• Clutch itself is free fr om any abnormal condition.
Gearshift or Select Lever (Transaxle)
Check gear shift or select lever for smooth shifting to all
positions and for good performance of transaxle in any
position.
With automatic transaxle or Automated Manual
Transaxle equipped vehicle, also check that shift
indicator indicates properly according to which position
select lever is shifted to.
With automatic transaxle equipped vehicle, make sure
that vehicle is at complete stop when shifting select lever
to “P” range position and release all brakes.
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Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-1
Engine
Engine General Information and Diagnosis
Precautions
Precautions on Engine ServiceS7RS0B1100001
CAUTION!
The following information on engine service
should be noted carefully, as it is important in
preventing damage, and in contributing to
reliable engine performance.

• When raising or supporting engine for any reason, do
not use a jack under oil pan. Due to small clearance
between oil pan and oil pump strainer, jacking against
oil pan may cause it to be bent against strainer,
resulting in damaged oil pick-up unit.
• It should be kept in mind , while working on engine,
that 12-volt electrical syste m is capable of violent and
damaging short circuits.
When performing any work where electrical terminals
can be grounded, ground cable of the battery should
be disconnected at battery.
• Any time the air cleaner, throttle body or intake manifold is removed, the intake opening should be
covered. This will protect against accidental entrance
of foreign material which could follow intake passage
into cylinder and cause extensive damage when
engine is started.
Precaution on On-Board Diagnostic (OBD)
System
S7RS0B1100005
There are two types of On -Board Diagnostic (OBD)
system, Euro OBD system and non-Euro-OBD system,
depending on the vehicle specification.
As the diagnosis function is different between these two
types, be sure to fully understand the OBD system
referring to “On-Board Diagnostic System Description”.
OBD System Summary Table
Precautions in Diagnosing TroubleS7RS0B1100002
NOTE
There are two types of OBD system
depending on the vehicle specification.
For details, refer to “Precaution on On-Board
Diagnostic (OBD) System”.

• Don’t disconnect couplers from ECM, battery cable
from battery, ECM ground wire harness from engine
or main fuse before confirming diagnostic information
(DTC, freeze frame data, etc.) stored in ECM memory.
Such disconnection will erase memorized information
in ECM memory.
• Diagnostic information stored in ECM memory can be cleared as well as checke d by using SUZUKI scan
tool or OBD generic scan tool. Before using scan tool,
read its Operator’s (Instruction) Manual carefully to
have good understanding as to what functions are
available and how to use it.
For Euro OBD model it is indistinguishable which
module turns on MIL because not only ECM but also
TCM (A/T model) turns on MIL (For details of on-
board diagnostic system for A/T model, refer to “On-
Board Diagnostic System Description in Section 5A”).
Therefore, check both ECM and TCM (A/T model) for
DTC when MIL lights on.
When checking ECM for DTC, keep in mind that DTC
is displayed on the scan tool as follows depending on
the scan tool used.
– SUZUKI scan tool displays DTC detected by ECM.
– OBD generic scan tool displays DTC detected by each of ECM and TCM (A/T model) simultaneously.
• Priorities for diagnosing troubles If two or more DTCs are stored, proceed to the DTC
flow which has been detected earliest in the order and
follow the instructi on in that flow.
If no instructions are given, troubleshoot DTCs
according to the following priorities.
a. DTCs other than DTC P0171 / P0172 (Fuel system too lean / too rich), DTC P0300 / P0301 /
P0302 / P0303 / P0304 (Misfire detected) and
DTC P0401 / P0402 (EGR flow malfunction)
b. DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC P0401 / P0402 (EGR flow
malfunction)
c. DTC P0300 / P0301 / P0302 / P0303 / P0304 (Misfire detected)
Euro OBD
model Non-Euro-OBD
model
Quantity of DTC
related to engine
control Approx. 80 Approx. 60
Freeze frame
data Available Not available
SUZUKI scan
tool Available Available
OBD generic
scan tool Available Not available

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-3
• The four cylinders of the engine are identified by numbers; No.1 (1), No.2 (2 ), No.3 (3) and No.4 (4)
counted from crankshaft pulley side to flywheel side.
Engine Diagnosis General DescriptionS7RS0B1101002
NOTE
There are two types of OBD system
depending on the vehicle specification.
For details, refer to “Precaution on On-Board
Diagnostic (OBD) System”.

This vehicle is equipped with an engine and emission
control system which are under control of ECM.
The engine and emission control system in this vehicle
are controlled by ECM. ECM has an On-Board
Diagnostic system which detects a malfunction in this
system and abnormality of those parts that influence the
engine exhaust emission. When diagnosing engine
troubles, be sure to have full understanding of the outline
of “On-Board Diagnostic System Description” and each
item in “Precautions in Diagnosing Trouble” and execute
diagnosis according to “Engine and Emission Control
System Check”.
There is a close relationship between the engine
mechanical, engine cooling system, ignition system,
exhaust system, etc. and the engine and emission
control system in their structure and operation. In case of
an engine trouble, even when the malfunction indicator
lamp (MIL) doesn’t turn ON, it should be diagnosed
according to “Engine and Emission Control System
Check”.
On-Board Diagnostic System DescriptionS7RS0B1101003
NOTE
There are two types of OBD system
depending on the vehicle specification.
For details, refer to “Precaution on On-Board
Diagnostic (OBD) System”.

Euro OBD Model
ECM in this vehicle has the following functions.
• When the ignition switch is turned ON with the engine at a stop, malfunction indicator lamp (MIL) (1) turns
ON to check the circuit of the malfunction indicator
lamp (1). • When ECM detects a malfunction which gives an
adverse effect to vehicle emission while the engine is
running, it makes the malfunction indicator lamp (1) in
the meter cluster of the inst rument panel turn ON or
flash (flashing only when detecting a misfire which
can cause damage to the catalyst) and stores the
malfunction area in its memory.
(If it detects that contin uously 3 driving cycles are
normal after detecting a malfunction, however, it
makes MIL (1) turn OFF although DTC stored in its
memory will remain.)
• As a condition for detecting a malfunction in some areas in the system being monitored by ECM and
turning ON the malfunction indicator lamp (1) due to
that malfunction, 2 driving cycle detection logic is
adopted to prevent erroneous detection.
• When a malfunction is detected, engine and driving conditions then are stored in ECM memory as freeze
frame data. (For the details, refer to description on
“Freeze Frame Data”.)
• It is possible to communicate by using not only SUZUKI scan tool (2) but also OBD generic scan tool.
(Diagnostic information can be accessed by using a
scan tool.)
Warm-Up Cycle
A warm-up cycle means sufficie nt vehicle operation such
that the coolant temperature has risen by at least 22 °C
(40 °F) from engine starting and reaches a minimum
temperature of 70 °C (160 ° F).
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Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-5
Freeze frame data clearance:
The freeze frame data is cleared at the same time as
clearance of DTC.
Non-Euro-OBD
ECM diagnosis troubles which may occur in the area
including the following parts w hen the ignition switch is
ON and the engine is running, and indicates the result by
turning on or flashing malfunction indicator lamp (1).
• Heated oxygen sensor
• ECT sensor
•TP sensor
• APP sensor
• MAF sensor
• IAT sensor
• MAP sensor
• CMP sensor
• CKP sensor
• Knock sensor
• Wheel speed sensor (VSS)
• CPU (Central Processing Unit) of ECM
• Oil control valve
• EGR valve
• EVAP canister purge valve
• Ignition coil
• Starter relay
• Radiator fan relay
• CAN communication
• Barometric pressure sensor
• ECM back up power supply
ECM and malfunction indicator lamp (1) operate as
follows.
• Malfunction indicator lamp (1) lights when the ignition switch is turned ON (but t he engine at stop) with the
diagnosis switch terminal ungrounded regardless of
the condition of Engine and Emission control system.
This is only to check the ma lfunction indicator lamp (1)
in the combination meter and its circuit.
• If the above areas of Engine and Emission control system is free from any trouble after the engine start
(while engine is running), malfunction indicator lamp
(1) turns OFF. • When ECM detects a trouble which has occurred in
the above areas, it makes malfunction indicator lamp
(1) turn ON while the engi ne is running to warn the
driver of such occurrence of trouble and at the same
time it stores the trouble area in ECM back-up
memory. (The memory is kept as it is even if the
trouble was only temporary and disappeared
immediately. And it is not erased unless the power to
ECM is shut off for specified time or it is cleared by
SUZUKI scan tool (2).)
For Hong Kong model, DTC can be read by not only
using SUZUKI scan tool but also displayed on
odometer (5) of the combination meter. (i.e. when
diagnosis switch terminal (3) is grounded with a
service wire (4) and ignition switch is turned ON.) For
further detail of the checking procedure, refer to “DTC
Check”.
6. Diagnosis connector
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Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-9
Air Intake System DescriptionS7RS0B1101006
The main components of the air intake system are air cleaner (1), air cleaner outlet hose (2), electric throttle body (3)
(for the details, refer to “Description of Electric Throttle Body System”.), and intake manifold (4).
The air (by the amount corresponding to throttle valve (5) opening and engine speed) is filtered by the air cleaner,
distributed by the intake, and finally drawn into each combusti on chamber. Electric throttle body is not equipped with
IAC valve for idle speed control. Idle speed control is done by the throttle actuator (6) which opens/closes the throttle
valve. (For the details, refer to “Description of Electric Throttle Body System”).
Description of Electric Throttle Body SystemS7RS0B1101007
The Electric Throttle Body System consists of electric throttle body asse mbly, APP sensor assembly, ECM and throttle
actuator control relay.
Among them, assembly components are as follows.
• Electric throttle body assembly: throttle valve, throttle actuator, 2 throttle position sensors
• APP sensor assembly: Accelerator pe dal, 2 accelerator position sensors
Operation Description
ECM (5) detects opening (depressed extent of pedal) of the accelerator pedal based on signal voltage of the APP
sensor (1) and using that data and engi ne operation condition, it calculates the optimum throttle valve opening. On the
other hand, it detects the throttle valve opening based on the signal voltage of the throttle position sensor (3) included
in the throttle body (2) and compares it with above calculated optimum throttle valve opening. When there is a
difference between them, ECM controls the duty ratio (100% – 0%) according to this difference to drive the throttle
actuator (motor) (4) included in the throttle body. When th ere is no difference, ECM controls the duty ratio to about
15% to maintain the throttle valve opening . In this way, the throttle valve (17) is opened and closed to achieve the
optimum throttle valve opening.
In this system, as the thrott le position sensor and APP sensor have 2 sensors (main and sub) each, highly accurate
and highly reliable control and abnormality detection are assured. Also, when ECM detects an abnormality in the
system, it turns off the th rottle actuator control relay (8) to step controlling the throttle actuator.
When the throttle actuator control relay is turned off, the throttle valve is fixed at the specified opening below from its
completely closed position (default openin g) by the force of the return spring and open spring included in the throttle
body.
This throttle body is not equipped with IAC valve for idle speed control. Idle speed control is done by the throttle
actuator which opens/closes the throttle valve.
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