2006 SUZUKI SX4 sensor

Downloaded from www.Manualslib.com manuals search engine 8-ii Table of Contents
DTC B1062 / B1066: Side-Air Bag Circuit Low
Resistance ...................................................... 8B-59
DTC B1063 / B1067: Side-Air Bag Circuit
Shorted to Ground .......................................... 8B-61
DTC B1064 / B1068: Side-Air Bag Circuit
Shorted to Power Supply ................................ 8B-64
DTC B1071: Driver Forward Impact-Sensor
Communication Data Inconsistent .................. 8B-66
DTC B1072: Driver Forward Impact-Sensor
Communication Data Invalid ........................... 8B-66
DTC B1073: Driver Forward Impact-Sensor
Circuit Shorted to Ground ............................... 8B-67
DTC B1074: Driver Forward Impact-Sensor
Circuit Open .................................................... 8B-68
DTC B1081 / B1091: Side Impact-Sensor No
Response ........................................................ 8B-70
DTC B1082 / B1092: Side Impact-Sensor
Communication DATA Invalid ......................... 8B-70
DTC B1083 / B1093: Side Impact-Sensor
Circuit Shorted to Ground ............................... 8B-71
DTC B1084 / B1094: Side Impact-Sensor
Circuit Open .................................................... 8B-73
DTC B1085 / B1095: Side Impact-Sensor
Communication DATA Inconsistent ................ 8B-74
DTC B1361 / B1365: Curtain-Air Bag Circuit
High Resistance .............................................. 8B-75
DTC B1362 / B1366: Curtain-Air Bag Circuit
Low Resistance ............................................... 8B-79
DTC B1363 / B1367: Curtain-Air Bag Circuit
Shorted to Ground .......................................... 8B-81
DTC B1364 / B1368: Curtain-Air Bag Circuit
Shorted to Power Supply ................................ 8B-83
SDM Power Supply and Ground Circuit
Check .............................................................. 8B-85
Contact Coil Cable and Its Circuit Check .......... 8B-87
Inspection of Intermittent and Poor
Connections .................................................... 8B-89Repair and Inspection Required after
Accident .......................................................... 8B-90
Repair Instructions ............................................8B-93
Disabling Air Bag System.................................. 8B-93
Enabling Air Bag System .................................. 8B-93
SDM Removal and Installation .......................... 8B-94
SDM Inspection ................................................. 8B-95
Driver Air Bag (Inflator) Module Removal and
Installation ....................................................... 8B-95
Driver Air Bag (Inflator) Module Inspection ....... 8B-97
Passenger Air Bag (Inflator) Module Removal
and Installation ................................................ 8B-97
Passenger Air Bag (Inflator) Module
Inspection ........................................................ 8B-99
Side-Air Bag (Inflator) Module Removal and
Installation ....................................................... 8B-99
Side-Air Bag (Inflator) Inspection .................... 8B-101
Side Curtain-Air Bag (Inflator) Module
Removal and Installation ............................... 8B-102
Side Curtain-Air Bag (Inflator) Module
Inspection ...................................................... 8B-103
Forward Impact-Sensor Removal and
Installation ..................................................... 8B-103
Forward Impact-Sensor Inspection ................. 8B-104
Side Impact-Sensor Removal and Installation 8B-105
Side Impact-Sensor Inspection ....................... 8B-105
Passenger Air Bag (Inflator) Module Repair
Harness Installation....................................... 8B-106
Air Bag (Inflator) Module and Seat Belt
Pretensioner Disposal ................................... 8B-107
Deployed Air Bag (Inflator) Module and
Activated Seat Belt Pretensioner Disposal.... 8B-117
Specifications ...................................................8B-118
Tightening Torque Specifications .................... 8B-118
Special Tools and Equipment .........................8B-118
Use of Special Tools ....................................... 8B-118
Special Tool .................................................... 8B-120

Downloaded from www.Manualslib.com manuals search engine 8B-1 Air Bag System:
Restraint
Air Bag System
Precautions
Precautions on Service and Diagnosis of Air
Bag System
S6RW0D8200004
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/B” fuse and air bag (inflator) module(s) (driver
module, passenger module, side modules and curtain
modules) 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 System Check” must be the
starting point of any air bag diagnostics. The “Air Bag
Diagnostic System Check” will verify proper “AIR
BAG” warning light operation 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
module, passenger module, side modules and curtain
modules), seat belt pretensioners (driver module and
passenger module), SDM, forward impact-sensor or
side impact-sensor be careful not to drop it or apply
an impact to it. If an excessive impact was applied
(e.g., SDM, forward impact-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 module,
passenger module, side modules and curtain
modules) and seat belt pretensioner connectors
(driver module and passenger module) respectively.
• When applying paint around the air bag system
related parts, use care so that the harness or
connector will not be exposed 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.

Precautions on Handling and Storage of Air Bag
System Components
S6RW0D8200002
SDM
WARNING!
Never power up air bag system when SDM is
not rigidly attached to the vehicle. Otherwise,
personal injury may result.

CAUTION!
After detecting one time of such collision as
to meet deployment conditions, SDM must
not be used. Refer to “Air Bag Diagnostic
System Check” when checking SDM.

Downloaded from www.Manualslib.com manuals search engine 8B-5 Air Bag System:
Precautions on Disposal of Air Bag and Seat
Belt Pretensioner
S6RW0D8200003
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 ConstructionS6RW0D8201001
There are two types of air bag system in this model
depending on vehicle specification.
One is 4-channel air bag system and other is 8-channel
air bag system.
4-channel air bag system consists of the following parts.
• Driver and passenger air bag (inflator) modules
• Driver and passenger seat belt pretensioners
• Forward impact-sensor
•SDM
8-channel air bag system consists of the following
component.
• Driver and passenger air bag (inflator) modules
• Driver and passenger seat belt pretensioners
• Driver and passenger side-air bag (inflator) modules
• Driver and passenger side curtain-air bag (inflator)
modules
• Forward impact-sensor
• Driver and passenger side impact-sensors
•SDM
With the air bag system which includes front air bags for
both the driver’s and passenger’s sides as well as the
seat belt pretensioners, the sag of the seat belt is taken
up (for seat belt with pretensioner), the driver air bag
(inflator) module is deployed from the 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.
In addition, with the air bag system which includes side-
air bags and side curtain-air bags for both the driver’s
and passenger’s side (8-channel system).
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.
For details of air bag system input / output, refer to “Air
Bag System Input / Output Table”.
1. Driver air bag 4. Side-air bag
2. Passenger air bag 5. Side curtain-air bag
3. Seat belt pretensioner
I4RS0B820002-02

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-6
The air bag system is designed to activate only in severe
frontal “a” and sideward “b” 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 Block DiagramS6RW0D8201004
I6RW0C820019-01
Battery Voltage
Forward Impact-Sensor
Driver Side Impact-Sensor
Passenger Side Impact-Sensor
DC / DC Converter
Back Up Capacitor
Safing Power Driver
Mechanical Longitudinal G Sensor (switch)
X-Y G sensor
(Longitudinal /
Lateral Acceleration)
Driver Side-Air Bag
Driver Side Curtain-Air Bag
Passenger Side Curtain-Air Bag
Passenger Side-Air Bag
Passenger Seat Belt Pretensioner
Driver Seat Belt Pretensioner
Passenger Air Bag
Driver Air Bag
INPUTOUTPUTSDM
Front Air
Bag and
Seat Belt
Preten-
tioner
Deploy-
ment
Driver
Side
Air Bag
Deploy-
ment
Driver
Side
Curtain
Air Bag
Deploy-
ment
Driver
Main CPU
BCM and Cmbination Meter
I6RW0C820001-01

Downloaded from www.Manualslib.com manuals search engine 8B-7 Air Bag System:
Air Bag System Input / Output TableS6RW0D8201002
Forward inpact-sensor
Driver side inpact-
sensor
Passenger side inpact-
sensor Mecanical longitudinal
G sensor in SDMX-Y G sensor
(longitudinal / lateral
acceleration) in SDM
OUTPUT
(deployment &
activation
device) INPUT
(sensor signal)
Driver & Passenger
air bag inflator
modulesDriver & Passenger
seat belt
pretentionersDriver side-air bag
& driver side
curtain-air bag
inflator modulesPassenger side-air
bag & passenger
side curtain-air bag
inflator modules
I6RW0C820002-01

Downloaded from www.Manualslib.com manuals search engine 8B-9 Air Bag System:
Terminal arrangement of SDM (viewed from harness side)
[A]: Shorting bar 11. BCM 25. Driver seat belt pretensioner
[B]: Connector 12. Combination meter 26. Passenger seat belt pretensioner
[C]: Junction block with BCM model 13. “AIR BAG” warning light27. Driver side-air bag (inflator) module (8-channel system)
[D]: Junction block without BCM model 14. Light driver 28. Passenger side-air bag (inflator) module (8-channel system)
1. Battery 15. SDM 29. Driver side curtain-air bag (inflator) module (8-channel
system)
2. Main fuse 16. To HVAC control module (auto A/C model) 30. Passenger side curtain-air bag (inflator) module (8-channel
system)
3. Fuse 17. Data link connector (DLC) 31. Safing power driver
4. Individual circuit fuse box No.1 18. Forward impact-sensor 32. X-Y-G (longitudinal / lateral acceleration)
5. “IGN” fuse 19. Driver side impact-sensor (8-channel
system)33. DC / DC converter
6. Ignition switch 20. Passenger side impact-sensor (8-channel
system)34. Mechanical longitudinal G sensor (switch)
7. Junction block assembly 21. Ground for air bag system 35. Back up capacitor
8. “DOME” fuse 22. Contact coil assembly
9. “METER” fuse 23. Driver air bag (inflator) module
10. “A/B” fuse 24. Passenger air bag (inflator) module
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
1
I7RW01822003-02
1. SDM Connector “L04”

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-10
Connector “L04” (SDM connector)
Terminal Circuit Terminal Circuit
L04-1 — L04-27 Ignition switch (power source)
L04-2 “AIR BAG” warning light L04-28 Ground
L04-3 Driver air bag (–) L04-29 —
L04-4 Driver air bag (+) L04-30 —
L04-5 Passenger air bag (+) L04-31 —
L04-6 Passenger air bag (–) L04-32 DLC
L04-7 Driver seat belt pretensioner (–) L04-33 —
L04-8 Driver seat belt pretensioner (+) L04-34 —
L04-9 Passenger seat belt pretensioner (+) L04-35 —
L04-10 Passenger seat belt pretensioner (–) L04-36 —
L04-11 Driver side-air bag (–) (8-channel
system)L04-37 BCM communication line (air bag deployment
signal)
L04-12 Driver side-air bag (+) (8-channel
system)L04-38 —
L04-13 Passenger side-air bag (+) (8-
channel system)L04-39 —
L04-14 Passenger side-air bag (–) (8-
channel system)L04-40 —
L04-15 — L04-41 —
L04-16 — L04-42 —
L04-17 — L04-43 —
L04-18 — L04-44 Passenger side impact-sensor (–) (8-channel
system)
L04-19 Driver side curtain-air bag (–) (8-
channel system)L04-45 Passenger side impact-sensor (+) (8-channel
system)
L04-20 Driver side curtain-air bag (+) (8-
channel system)L04-46 Driver side impact-sensor (+) (8-channel
system)
L04-21 Passenger side curtain-air bag (+)
(8-channel system)L04-47 Driver side impact-sensor (–) (8-channel
system)
L04-22 Passenger side curtain-air bag (–)
(8-channel system)L04-48 —
L04-23 — L04-49 —
L04-24 — L04-50 Forward impact-sensor (+)
L04-25 — L04-51 Forward impact-sensor (–)
L04-26 —

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-12
Diagnostic Information and Procedures
Air Bag Diagnostic System CheckS6RW0D8204001
WARNING!
To avoid deployment when troubleshooting
the air bag system, do not use electrical test
equipment such as a battery powered or AC
powered voltmeter, ohmmeter, etc., or any
type of electrical equipment other than that
specified in this manual. Do not use a non-
powered probe type tester.
Instructions in this manual must be followed
carefully, otherwise personal injury may
result.

CAUTION!
• The order in which DTCs are diagnosed is
very important. Failure to diagnose the
DTCs in the order specified may result in
extended diagnostic time, incorrect
diagnosis and incorrect parts replacement.
• When measurement of resistance or
voltage is required in the 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 an open circuit in the air bag wire
harness damaged, connector or terminal is
found, replace the wire harness,
connectors and terminals as an assembly.

The diagnostic procedures used are designed to find
and repair air bag system malfunctions.
To get the best results, it is important to use the
diagnostic flow and follow the sequence in the following.
1) Perform the “Air Bag Diagnostic System Check
Flow”.
(The “Air Bag Diagnostic System Check Flow” must
be the starting point of any air bag system diagnosis.
The “Air Bag Diagnostic System Check Flow” checks
for proper “AIR BAG” warning light operation through
“AIR BAG” warning light and whether air bag DTCs
exist.)
2) Refer to the proper diagnostic flow as directed by the
“Air Bag Diagnostic System Check Flow”.
(The “Air Bag Diagnostic System Check Flow” will
lead you to the correct flow to diagnose any air bag
system malfunctions. Bypassing these procedures
may result in extended diagnostic time, incorrect
diagnosis and incorrect parts replacement.)
3) Repeat the “Air Bag Diagnostic System Check Flow”
after any repair or diagnostic procedures have been
performed.
(Performing the “Air Bag Diagnostic System Check
Flow” after all repair or diagnostic procedures will
ensure that the repair has been made correctly and
that no other malfunctions exist.)
A: Combination meter 6. Side curtain-air bag (inflator) module (8-
channel system)14. “A/B” fuse in junction block assembly
B: Steering wheel 7. Contact coil assembly 15. Air bag harness in main harness
C: Seat 8. Forward impact-sensor 16. Air bag harness in instrument panel harness
1. “AIR BAG” warning light 9. Apron-side-member (driver side) 17. Air bag harness in floor harness
2. Driver air bag (inflator) module 10. Side impact-sensor (8-channel system) 18. Side-air bag harness (8-channel system)
3. Passenger air bag facing cover 11. Side sill inner panel 19. Side curtain-air bag harness (8-channel
system)
4. Passenger air bag (inflator) module 12. SDM 20. Ground for air bag system
5. Side-air bag (inflator) module (8-channel
system)13. Seat belt pretensioner