2008 SUZUKI SWIFT impact

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-1
Restraint
Air Bag System
Precautions
Precautions on Service and Diagnosis of Air
Bag System
S7RS0B8200001
WARNING!
• If the air bag system and another vehicle system both need repair, SUZUKI
recommends that the air bag system be
repaired first, to help avoid unintended air
bag system activation.
• Do not modify the steering wheel, dashboard, both front seat or any other on
or around air bag system components.
Modifications can adversely affect air bag
system performance and lead to injury.
• Be sure to follow the procedures described in this section. Failure to follow
procedures could result in possible air bag
system activation, personal injury or
unneeded air bag system repairs.

• WARNING / CAUTION labels are attached on each
part of air bag system components (SDM, air bag
(inflator) modules and seat belt pretensioners). Be
sure to follow the instructions.
• Many of service procedures require disconnection of
“A/BAG” fuse and air bag (inflator) module(s) (driver,
passenger, side of both si des and curtain of both
sides) from initiator circuit to avoid an accidental
deployment.
• Do not apply power to the air bag system unless all components are connected or a diagnostic flow
requests it, as this will set a DTC.
• The “Air Bag Diagnostic S ystem Check” must be the
starting point of any air bag diagnostics. The “Air Bag
Diagnostic System Check” will verify proper “AIR
BAG” warning right operatio n and will lead you to the
correct flow to diagnose any air bag malfunctions.
Bypassing these procedures may result in extended
diagnostic time, incorrect diagnosis, and incorrect
parts replacements. • Never use air bag component parts from another
vehicle.
• If the vehicle will be exposed to temperatures over 93
° C (200 °F) (for example, during a paint baking
process), remove the air bag system components
beforehand to avoid component damage or
unintended system activation.
• When handling the air bag (inflator) modules (driver, passenger, side of both si des and curtain of both
sides), seat belt pretensio ners (driver and passenger),
SDM, forward-sensor or side-sensor, be careful not to
drop it or apply an impact to it. If an excessive impact
was applied (e.g., SDM, forward-sensor and side-
sensor are dropped, air bag (inflator) module is
dropped from a height of 90 cm (3 ft) or more, seat
belt pretensioner (retractor assembly) is dropped from
a height of 30 cm (1 ft) or more), never attempt
disassembly or repair but replace it with a new one.
• When using electric welding, be sure to disconnect air bag (inflator) module connectors (driver, passenger,
side of both sides and curtain of both sides) and seat
belt pretensioner connectors (driver and passenger)
respectively.
• When applying paint around the air bag system related parts, use care so that the harness or
connector will not be expo sed to the paint mist.
• Never expose air bag system component parts directly to hot air (drying or baking the vehicle after
painting) or flames.
WARNING!
When performing service on or around air
bag system components or air bag wiring,
follow the procedures listed in “Disabling Air
Bag System” to temporarily disable the air
bag system.
Failure to follow procedures could result in
possible air bag system activation, personal
injury or unneeded air bag system repairs.

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-5
• When an open in air bag wire harness, damaged wire harness, connector or terminal is found, replace wire
harness, connectors and terminals as an assembly.
• When installing it, be careful so that the air bag wire harness is not caught or does not interfere with other
parts.
• Make sure air bag system grounding point (2) is clean and ground is securely fastened for optimum metal-to-
metal contact. Poor grounding can cause intermittent
problems that are difficult to diagnose.Precautions on Disposal of Air Bag and Seat
Belt Pretensioner
S7RS0B8200003
Do not dispose of the live (undeployed) air bag (inflator)
modules and the live (inactivated) seat belt
pretensioners.
When disposal is necessary, be sure to deploy / activate
the air bag and seat belt pretensioner according to
deployment / activation procedure described in “Air Bag
(Inflator) Module and Seat Belt Pretensioner Disposal”.
WARNING!
Failure to follow proper air bag (inflator)
module and seat belt pretensioner disposal
procedures can result in air bag deployment
and pretensioner activation which could
cause personal injury. Undeployed air bag
(inflator) module and inactivated seat belt
pretensioner must not be disposed of
through normal refuse channels.
The undeployed air bag (inflator) module and
inactivated seat belt pretensioner contain
substances that can cause severe illness or
personal injury if the sealed container is
damaged during disposal.

General Description
Air Bag System ConstructionS7RS0B8201001
With the air bag system which includes front air bags,
side curtain-air bag and side-air bags for both the
driver’s and passenger’s sides as well as the seat belt
pretensioners, the sag of the s eat belt is taken up (for
seat belt with pretensioner), the driver air bag (inflator)
module is deployed from th e center of the steering
column and the passenger air bag (inflator) module from
the top of the instrument panel in front of the front
passenger seat in occurrence of a front collision with an
impact larger than a certain set value to supplement
protection offered by the driver and front passenger seat
belts.
Side-air bag (inflator) module is deployed from the side
of the seat back in occurrence of a sideward collision
with an impact larger than a certain set value.
Side curtain-air bag (inflator) module is deployed from
the roof side in occurrence of a sideward collision with
an impact larger than a certain set value.
1
2
3
4
5
I4RS0A820004-01
1. Driver air bag 4. Side-air bag
2. Passenger air bag 5. Side curtain-air bag
3. Seat belt pretensioner
I4RS0A820102-01

Downloaded from www.Manualslib.com manuals search engine 8B-6 Air Bag System:
The air bag system is designed to activate only in severe
frontal and sideward collisions. It is not designed to
activate in rear impacts, rollovers, or minor frontal and
sideward collisions, since it would offer no protection in
those types of accidents.
Air Bag System Input / Output TableS7RS0B8201002
I2RH0B820007-01
INPUT
Sensor in SDM and
forward-sensor Driver side-air bag
and Driver side
curtain-air bag
Passenger side-air bag
and Passenger side
curtain-air bag
Driver side-sensor Passenger side-sensor OUTPUT
Signal from
sensor Driver air bag, Passenger
air bag, Seat belt with
pretensioner (LH) and Seat
belt with pretensioner (RH)
I4RS0A820005-01

Downloaded from www.Manualslib.com manuals search engine 8B-22 Air Bag System:
DTC B1021: Front Air Bag Module DeployedS7RS0B8204014
DTC Will Set when
The SDM detects a frontal crash of sufficient force to warrant activation of the air bag system. (SDM outputs a
deployment command.)
Flow Test Description
Step 1: Check that DTC B1021 has been set although air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.

DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
• Clear DTCs of BCM referring to “DTC Clearance in Section 10B”

DTC B1024 / B1025: Side-Air Bag (Driver / Passenger) DeployedS7RS0B8204015
DTC Will Set when
The SDM detects a sideward crash (driver or passenger side) of sufficient force to warrant activation of the side-air
bag system (driver or pa ssenger). (SDM outputs a deployment command.)
Flow Test Description
Step 1: Check that DTC B1024 or B1025 has been set although side-air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.

Step Action YesNo
1 1) Turn ignition switch OFF.
Has air bag deployed? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of impact.
Are there signs of impact? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Substitute a known-
good SDM and recheck.

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-23
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
• Clear DTCs of BCM referring to “DTC Clearance in Section 10B”

DTC B1026: Pretensioner ActivatedS7RS0B8204016
DTC Will Set when
The SDM detects a frontal crash of sufficient force to warrant activation of the pr etensioner. (SDM outputs a
deployment command.)
Flow Test Description
Step 1: Check that DTC B1026 has been set although pretensioner has not been activated.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform “Air Bag Diagnostic System Check”.

DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.
• Clear DTCs of BCM referring to “DTC Clearance in Section 10B”

StepAction YesNo
1 1) Turn ignition switch OFF.
Has air bag deployed? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of impact.
Are there signs of impact? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Substitute a known-
good SDM and recheck.
Step
Action YesNo
1 1) Turn ignition switch OFF.
Has pretensioner activated? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Go to Step 2.
2 1) Inspect front of vehicle and undercarriage for signs of impact.
Are there signs of impact? Replace components
and perform inspections
as directed in “Repair
and Inspection
Required after
Accident”.Substitute a known-
good SDM and recheck.

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-103
Driver Air Bag (Inflator) Module InspectionS7RS0B8206006
WARNING!
Never disassemble air bag (inflator) module
or measure its resistance. Otherwise,
personal injury may result.

CAUTION!
If air bag (inflator) module was dropped from
a height of 90 cm (3 ft) or more, it should be
replaced.

Check air bag (inflator) module visually and if any of the
following is found, replace it with a new one.
• Air bag being deployed
• Trim cover (pad surface) (1) being cracked
• Inflator case (2) being damaged or having been exposed to strong impact (dropped)
• Bend or deformity of air bag (inflator) module bracket.
Passenger Air Bag (Inflator) Module Removal
and Installation
S7RS0B8206007
WARNING!
• Never attempt to disassemble or repair the passenger air bag (inflator) module. If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service and Diagnosis of Air Bag System”,
“Precautions on Handling and Storage of
Air Bag System Components” and
“Precautions on Disposal of Air Bag and
Seat Belt Pretensioner” before starting to
work and observe every precaution during
work. Neglecting them may result in
personal injury or undeployment of the air
bag when necessary.

Removal
1) Disable air bag system. Re fer to “Disabling Air Bag
System”.
2) Disconnect passenger air bag (inflator) module connector (1) as shown in figure.
a) Unlock lock button (2).
b) With lock button unlocked, disconnect connector.
3) Remove passenger air bag (inflator) module attaching bolts (1).
4) Remove passenger air bag (inflator) module with air bag hole cover (1) from instrument panel as shown.
1 2
I4RS0A820059-01
2
1
a)b)
I4RS0A820060-01
1I4RS0A820061-01
“A”
“A”“A”
1
I4RS0A820062-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-105
4) Connect passenger air bag (inflator) module connector (1) securely as shown in figure.
a) Connect connector.
b) Lock connector with lock button (2).
5) Enable air bag system. Refer to “Enabling Air Bag System”.
Passenger Air Bag (Inflator) Module InspectionS7RS0B8206008
WARNING!
• Never measure resistance of passenger air bag (inflator) module or disassemble it.
Otherwise personal injury may result.
• Never attempt to disassemble or repair the passenger air bag (inflator) module. If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service and Diagnosis of Air Bag System”,
“Precautions on Handling and Storage of
Air Bag System Components” and
“Precautions on Disposal of Air Bag and
Seat Belt Pretensioner” before starting to
work and observe every precaution during
work. Neglecting them may result in
personal injury or undeployment of the air
bag when necessary.

CAUTION!
If air bag (Inflator) module was dropped from
a height of 90 cm (3 ft) or more, it should be
replaced.

Check air bag (inflator) module appearance visually for
the following symptoms and if any one of them is found,
replace with a new one.
• Air bag has deployed.
• Wire harness or connector is damaged.
• Air bag (inflator) module is damaged or a strong impact was applied to it.
• Bend or deformity of air bag (inflator) module bracket.
Side-Air Bag (Inflator) Module Removal and
Installation
S7RS0B8206009
WARNING!
• Never attempt to disassemble or repair the side-air bag (inflator) module. If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service and Diagnosis of Air Bag System”,
“Precautions on Handling and Storage of
Air Bag System Components” and
“Precautions on Disposal of Air Bag and
Seat Belt Pretensioner” before starting to
work and observe every precaution during
work. Neglecting them may result in
personal injury or undeployment of the air
bag when necessary.

Removal
1) Disable air bag system. Re fer to “Disabling Air Bag
System”.
2) Roll up the seat surface of the seat back.
3) Remove sleeve lock nut (1) from seat back (2).
1
2
a)
b)
I4RS0A820066-01
I3RH0A820071-01
1
2
I4RS0A820067-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-107
Side-Air Bag (Inflator) InspectionS7RS0B8206010
WARNING!
• Never attempt to disassemble or repair the side-air bag (inflator) module. If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service and Diagnosis of Air Bag System” before
starting to work and observe every
precaution during work. Neglecting them
may result in personal injury or
undeployment of the air bag when
necessary.

CAUTION!
If air bag (inflator) module was dropped from
a height of 90 cm (3 ft) or more, it should be
replaced.

Check air bag (inflator) module appearance visually for
the following symptoms and if any one of them is found,
replace with a new one.
• Air bag has deployed.
• There is a crack in trim cover (pad surface).
• Wire harness or connector is damaged.
• Air bag (inflator) module is damaged or a strong impact was applied to it.
• Bend or deformity of air bag (inflator) module bracket.
Side Curtain-Air Bag (Inflator) Module Removal
and Installation
S7RS0B8206011
WARNING!
• Never attempt to disassemble or repair the side curtain-air bag (inflator) module. If any
abnormality is found, be sure to replace it
with new one as an assembly.
• Be sure to read “Precautions on Service and Diagnosis of Air Bag System”,
“Precautions on Handling and Storage of
Air Bag System Components” and
“Precautions on Disposal of Air Bag and
Seat Belt Pretensioner” before starting to
work and observe every precaution during
work. Neglecting them may result in
personal injury or undeployment of the air
bag when necessary.

Removal
1) Disable air bag system. Re fer to “Disabling Air Bag
System”.
2) Remove head lining referring to “Head Lining Removal and Installati on in Section 9H”.
3) Disconnect side curtain-air bag (inflator) module connector (1) as shown in figure.
a) Unlock lock button (2).
b) With lock button unlocked, disconnect connector.
I4RS0A820075-02
2
1 a)
b)
I4RS0A820077-01