2008 SUZUKI SWIFT Belt tension

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 Air Bag System: 8B-7
Schematic and Routing Diagram
Air Bag System Wiring Circuit DiagramS7RS0B8202001
[A]
[B]“E13” “E44”, “G04” “G35” and "L03" \
"L41"
1
2 GRN/RED
GRN GRN/RED
GRN
BLU/RED YEL/RED BLU/RED
YEL/RED
GRN/ORN GRN/YEL
RED
13
PPL/WHT
9 7
8
5
6
10 “L10”
“L11”
“L04”
“G35” “G34”
“G33”
“G28”
“G32”
“L35”
L29-2
L29-27
L29-32 L29-5
L29-6 L29-4
L29-3
L29-8
L29-7
IG
ST
YEL L29-37ADS
WHT/RED
LT GRN/BLK L29-46
L29-47 SD+
SD-
11
WHT/GRN LT GRN
BLK L29-45
L29-44 WL
L29-28
E1 DP-
DP+ P- P+ D- D+
“G10”
“G04”“L29”
18
BLU/ORN
BLU/YEL “L36”
L29-9
L29-10
PP-
PP+
19 17
GRY/RED
GRY
L29-12
L29-11
DS- DS+ “L25”
20
BRN/WHT
BRN
L29-13
L29-14
PS- PS+ “L30”
21
YEL/GRN
YEL/BLU
L29-20
L29-19
DC- DC+ “L18”
22
BLK/YEL
BRN/YEL
L29-21
L29-22
PC- PC+ “L41”
2316
15
14
“L29”
SP+
SP-
“G26”“L32”
“L03”“E44”“E13”
12
ORN
PNK/BLK
GRY/RED
GRY L29-50
L29-51 FD+
FD-
3 4
YEL/BLK
YEL/BLK
GRN RED/BLK
I7RS0A820002-03
[A]: Shorting bar
8. BCM 17. Passenger air bag (inflator) module
[B]: Connector 9. To data link connector (DLC)18. Driver seat belt pretensioner
1. To battery 10. Driver side-sensor (if equipped)19. Passenger seat belt pretensioner
2. Ignition switch 11. Passenger side-sensor (if equipped) 20. Driver side-air bag (inflator) module (if equipped)
3. “AIR BAG” warning light 12. Forward-sensor 21. Passenger side-air bag (inflator) module (if equipped)
4. Light driver 13. Ground for air bag system 22. Driver side curtain-air bag (inflator) module (if equipped)
5. “METER” fuse 14. SDM 23. Passenger side curtain-air bag (inflator) module (if equipped)
6. “A/BAG” fuse 15. Contact coil
7. Junction block assembly 16. Driver air bag (inflator) module

Downloaded from www.Manualslib.com manuals search engine 8B-8 Air Bag System:
Terminal arrangement of SDM (viewed from harness side)
Connector “L29” (SDM connector)
1 2345678910
11
1213141516171819202122232425
272829303132333435363738394041424344454647484950
1
26
51
I7RS0A820003-02
1. SDM Connector “L29”
Terminal Terminal
symbol Circuit Terminal Terminal
symbol Circuit
L29-1 — — L29-27 IG Ignition switch (power source)
L29-2 WL “AIR BAG” warning right L29-28 E1 Ground
L29-3 D– Driver air bag (–) L29-29 — —
L29-4 D+ Driver air bag (+) L29-30 — —
L29-5 P+ Passenger air bag (+) L29-31 — —
L29-6 P– Passenger air bag (–) L29-32 ST DLC
L29-7 DP– Driver seat belt pretensioner (–) L29-33 — —
L29-8 DP+ Driver seat belt pretensioner (+) L29-34 — —
L29-9 PP+ Passenger seat belt pretensioner (+) L29-35 — —
L29-10 PP– Passenger seat belt pretensioner (–) L29-36 — — L29-11 DS– Driver side-air bag (–) (If equipped ) L29-37 ADS Air bag deployed signal for BCM
L29-12 DS+ Driver side-air bag (+) (If equipped) L29-38 — —
L29-13 PS+ Passenger side-air bag (+) (If
equipped) L29-39 — —
L29-14 PS– Passenger side-air bag (–) (If
equipped) L29-40 — —
L29-15 — — L29-41 — —
L29-16 — — L29-42 — —
L29-17 — — L29-43 — —
L29-18 — — L29-44 SP– Passenger side-sensor (–)
L29-19 DC– Driver side curtain-air bag (–) L29-45 SP+ Passenger side-sensor (+)
L29-20 DC+ Driver side curtain-air bag (+) L29-46 SD+ Driver side-sensor (+)
L29-21 PC+ Passenger side curtain-air bag (+) L29-47 SD– Driver side-sensor (–)
L29-22 PC– Passenger side curtain-air bag (–) L29-48 — —
L29-23 — — L29-49 — —
L29-24 — — L29-50 FD+ Forward-sensor (+)
L29-25 — — L29-51 FD– Forward-sensor (–)
L29-26 — — — — —

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-9
Component Location
Air Bag System Components, Wiring and Connectors LocationS7RS0B8203001
5
2
10
(a)(b)
(b)
(b)
(b)
(c)(d)
1
1
23
4
5
6
7
8
8
8
910
11
11
12
12
11
12
13
1313
15
14
I4RS0A820007-01
1. Passenger air bag (inflator) module
8. Side-air bag (inflator) module (if equipped)15. “AIR BAG” warning right
2. Driver air bag (inflator) module 9. Ground for air bag system: 23 N⋅m (2.3 kgf-m, 16.5 lb-ft)
3. Contact coil assembly 10. SDM: 9 N⋅m (0.9 kgf-m, 6.5 lb-ft)
4. Air bag harness in main harness 11. side-sensor (if equipped): 43 N⋅m (4.3 kgf-m, 31.5 lb-ft)
5. Forward-sensor 12. Seat belt pretensioner: 5.5 N⋅m (0.55 kgf-m, 4.0 lb-ft)

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-13
Scan Tool DataS7RS0B8204006
Data list of SDM
Definition
Back Up Volt (V)
This parameter indicates the capacity of the backup
condenser installed to maintain the ignition current (as
much as possible) even when the power supply to SDM
that ignites the inflator is shut off.
Battery Voltage (V)
Battery voltage is an analog input signal read by SDM.
System ID (4ch/8ch)
This parameter indicates the number of initiator circuits.
Driv A/B Ini Res (Driver air bag initiator resistance)
(ohm)
This parameter indicates the resistance of the driver air
bag initiator circuit. Pass A/B Ini Res (Passenger air bag initiator
resistance) (ohm)
This parameter indicates the
resistance of the passenger
air bag initiator circuit.
Driv Preten Ini Res (Dri ver pretensioner initiator
resistance) (ohm)
This parameter indicates the resistance of the driver seat
belt pretensioner initiator circuit.
Pass Preten Ini Res (Passenger pretensioner
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
seat belt pretensioner initiator circuit.
Driv Sidebag Ini Res (Driver side-air bag initiator
resistance) (ohm)
This parameter indicates the resistance of the driver
side-air bag initiator circuit.
Pass Sidebag Ini Res (Passenger side-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the
Passenger side-air bag initiator circuit.
Driv curtain Ini Res (Driver side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the re sistance of the driver side
curtain-air bag initiator circuit.
Pass curtain Ini Res (Passenger side curtain-air bag
initiator resistance) (ohm)
This parameter indicates the resistance of the passenger
side curtain-air bag initiator circuit.
“AIR BAG” Warning Right Comes ON SteadyS7RS0B8204007
Wiring Diagram Normal Condition /
Reference Value
) Battery voltage 10 – 14 V
) Back up volt 27.0 – 33.0 V
) System ID 4ch or 8ch
) Driv A/B Ini Res 2.1 – 3.8 ohm
) Pass A/B Ini Res 1.8 – 2.8 ohm
) Driv Preten Ini Res 1.8 – 2.9 ohm
) Pass Preten Ini Res 1.8 – 2.9 ohm
) Driv Sidebag Ini Res 1.8 – 2.6 ohm
) Pass Sidebag Ini Res 1.8 – 2.6 ohm
) Driv curtain Ini Res 1.8 – 2.8 ohm
) Pass curtain Ini Res 1.8 – 2.8 ohm
1
2 GRN
11
BLK
L29-27
L29-2
L29-28 WL
E1
IG
L29-32
ST
10
8
“L29”
RED
PPL/WHT
7
3
4 “L04”
“G34”
“G33”
“G28”
“G32”
5 6
“G32”
YEL/BLK
YEL/BLK
RED/BLK
9
I7RS0B820002-02
1. From main fuse 5. “AIR BAG” warning right in combination meter 9. To DLC
2. Ignition switch 6. Lamp driver 10. SDM
3. “METER” fuse 7. Junction block assembly 11. Ground for air bag system
4. “A/BAG” fuse 8. BCM

Downloaded from www.Manualslib.com manuals search engine 8B-56 Air Bag System:
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.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1051 / B1055: Driver / Passenger Pretensioner Initiator Circuit Resistance HighS7RS0B8204026
Wiring Diagram3 1) With ignition switch OFF, disconnect special tools (B)
and (C) from “L32” connector and SDM connector “L29”
from SDM respectively.
2) Release shorting bar in SDM connector inserting release tool (1) included in special tool (A).
3) Measure voltage from “L29-5” terminal to body ground and from “L29-6” terminal to body ground.
Special tool
(A): 09932-76010
(B): 09932-75010
(C): 09932–77320
With ignition switch ON, is voltage 1 V or less? Substitute a known-
good SDM and recheck.
“BLU/RED” or “YEL/
RED” circuit shorted to
power supply circuit in
floor harness.
Step Action Yes No
(B)
(C)
"L32"
BASE OF COLUMN
DRIVERPASSENGER
(A)
"L29-6"
"L29-5"
I7RS0A820015-02
1
2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”
L29-8
DP+
L29-7
DP-GRN/YEL
GRN/ORN
56
“L10”
L29-9
PP+
L29-10
PP-BLU/YEL
BLU/ORN7
“L36”[A]
I7RS0A820016-05
[A]: Shorting bar 3. “A/BAG” fuse 6. Driver seat belt pretensioner
1. From main fuse 4. Junction block assembly 7. Passenger seat belt pretensioner
2. Ignition switch 5. SDM 8. Ground for air bag system

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-57
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.

DTC Will Set when
The resistance of driver or passenger seat belt pretensioner initiator circuit is above a specified value for specified
time.
Flow Test Description
Step 1: Check if malfunction is in seat belt pretensioner.
Step 2: Check seat belt pretensioner initiator circuit.
DTC Troubleshooting
Step Action YesNo
1 1) With ignition switch OFF, re move center pillar lower trim
of driver or passenger side and disconnect seat belt
pretensioner connector “L10” or “L36” (1).
2) Check proper connection to seat belt pretensioner at terminals in “L10” or “L36” connector.
3) If OK, then connect special tools (A), (B) and (C) to “L10” or “L36” connector disconnected in Step 1).
Special tool
(A): 09932-76010
(B): 09932-75010
(C): 09932-78310
4) Check SDM DTC.
With ignition switch ON, is DTC B1051 or B1055 still
indicated? Go to Step 2.
Turn ignition switch
OFF. Replace seat belt
pretensioner referring to
“Rear Seat Belt
Removal and
Installation in Section
8A”.
STEERING WHEEL(B)
(C)
(A)
"L10", "L36"
I4RS0A820027-01