main harness SUZUKI SWIFT 2008 2.G Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine 8B-80 Air Bag System:
DTC B1081 / B1091: Driver / Passenger Side-Sensor Performance ProblemS7RS0B8204038
DTC Will Set when
SDM receives internal fault signal from side-sensor.
DTC Troubleshooting1) Turn ignition switch OFF.
2) Replace driver or passenger side-sensor referr ing to “Side-Sensor Removal and Installation”.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1082 / B1092: Driver / Passenger Side-Sensor Communication ErrorS7RS0B8204039
DTC Will Set when
Side-sensor abnormal signal is detected by SDM.
DTC Troubleshooting
1) Turn ignition switch OFF.
2) Replace driver or passenger side-sensor referr ing to “Side-Sensor Removal and Installation”.
3) Repeat “Air Bag Diagnostic System Check”.
DTC B1083 / B1093: Driver / Passenger Side-Sensor Circuit Short to GroundS7RS0B8204040
Wiring Diagram
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 measured between side-sen sor circuit and ground circuit is below a specified value for specified time.
Flow Test Description
Step 1: Check for short circuit between side-sensor circuit and ground.
Step 2: Check if malfunction is in side-sensor.
1 2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”5
WHT/RED
LT GRN/BLKL29-46
SD+
L29-47
SD-6
“L11”
WHT/GRN
LT GRNL29-45
SP+
L29-44
SP-7
“L35”
I7RS0A820028-02
1. From main fuse 4. Junction blo ck assembly 7. Passenger side-sensor
2. Ignition switch 5. SDM 8. Ground for air bag system
3. “A/BAG” fuse 6. Driver side-sensor

Downloaded from www.Manualslib.com manuals search engine 8B-84 Air Bag System:
DTC B1361 / B1365: Driver / Passenger Side Curtain-Air Bag Initiator Circuit Resistance HighS7RS0B8204043
Wiring Diagram
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 combined resistance of the side curtain-air bag (inflator) module (driver or passenger), harness wiring and
connector terminal contact is above a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in side curtain-air bag (inflator) module.
Step 2: Check side curtain-air bag initiator circuit.
1 2
3
GRN
RED
8
BLK
L29-27
L29-28 IG
E1
4
“L29”
“L04”
“G32”
“L29”
L29-20
DC+
L29-19
DC-YEL/BLU
YEL/GRN
56
“L18”
L29-21
PC+
L29-22
PC-BRN/YEL BLK/YEL7
“L41”[A]
I7RS0A820031-04
[A]: Shorting bar 3. “A/BAG” fuse 6. Driver side curtain-air bag (inflator) module
1. From main fuse 4. Junction block assembly 7. Passenger side curtain-air bag (inflator) module
2. Ignition switch 5. SDM 8. Ground for air bag system

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-95
Inspection of Intermittent and Poor
Connections
S7RS0B8204048
Most intermittents are caused by faulty electrical
connections or wiring. When a check for proper
connection is requested in a diagnostic flow, perform
careful check of suspect circuits.
If any abnormality is found, repair or replace as a wire
harness assembly.
• Poor mating of connector halves, or terminals not fully seated in the connector body (backed out).
• Dirt or corrosion on the terminals. The terminals must be clean and free of any foreign material which could
impede proper terminal contact.
However, cleaning the terminal with a sand paper or
the like is prohibited.
• Damaged connector body, exposing the terminals to moisture and dirt, as well as not maintaining proper
terminal orientation with the component or mating
connector.
• Improperly formed or damaged terminals. Check each connector terminal in problem circuits
carefully to ensure good contact tension by using the
corresponding mating terminal included in the
connector test adapter kit (special tool).
If contact tension is not e nough, reform the terminal to
increase contact tension or replace it.
Special tool
(A): 09932-76010 Connector test adapter kit • Poor terminal-to-wire connection.
Check each wire harness in problem circuits for poor
connection by shaking it by hand lightly. If any
abnormal condition is found, change the wire harness
assembly or component parts with new ones.
• Wire insulation which is rubbed through, causing an intermittent short as the bare area touches other
wiring or parts of the vehicle.
• Wire broken inside the insulation. This condition could cause a continuity check to show a good circuit, but if
only 1 or 2 strands of a multi-strand-type wire are
intact, resistance could be far too high.
(A)
I4RS0A820045-01
IYSQ01010028-01
IYSQ01820025-01

Downloaded from www.Manualslib.com manuals search engine 8B-96 Air Bag System:
Repair and Inspection Required after AccidentS7RS0B8204049
CAUTION!
• All air bag system components, including the electrical harness (component
mounting points), must be inspected after
an accident. If any components are
damaged or bent, they must be replaced
even if air bag system activation did not
occur.
• Never use air bag system parts from another vehicle.
• Do not attempt to service the parts below. Service of these parts is by replacement
only.
– Driver / Passenger air bag (inflator) modules
– Driver / Passenger side-air bag (inflator) modules
– Driver / Passenger side curtain-air bag (inflator) modules
– Driver / Passenger seat belt pretensioners
–Forward-sensor
– Driver / Passenger side-sensors
–SDM
– Contact coil and combination switch assembly
– Air bag wire harness in main harness, instrument panel harness and floor
harness.
• Proper operation of the sensors and air bag system requires that any repairs to the
vehicle structure return it to its original
production configuration.

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

Accident with Deployment / Activation – Component
Replacement
When driver and passenger air bags are deployed, the
following components must be replaced.
• Driver and passenger air bag (inflator) modules
• Driver and passenger seat belt pretensioners
• SDM after detecting such collision as to meet
deployment conditions
• Forward-sensor
• Instrument panel When side-air bag and side curtain-air bag are deployed,
the following components must be replaced.
• Deployed side-air bag (inflator) module
• Deployed side curtain-air bag (inflator) module
• Side-sensor
•SDM
Accident with or without Deployment / Activation –
Component Inspections
Certain air bag and restraint system components must
be inspected after any crash, whether the air bag system
activated or not. If any faul
ty condition is found in the
following checks, replace faulty part.
Those components are:
• Steering column (1) and shaft joints
– Check for length, damage and bend according to “Checking Steering Column for Accident Damage in
Section 6B”.
• Steering column bracket (2) and capsules – Check for damage and bent.
• Steering wheel and driver air bag (inflator) module – Check for damage or air bag (inflator) module fitness.
– Check trim cover (pad surface) for cracks.
– Check wire harness and connector for damage or tightness.
2
1
I4RS0A820046-01
I4RS0A820047-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-97
• Contact coil and combination switch assembly
– Check wire harness and connectors for damage or tightness.
– Check contact coil case for damage.
• Instrument panel member and reinforcement – Check for any distortion, bending, cracking or other damage.
– Check instrument panel fo r cracks or deformities.
• Passenger air bag (inflator) module
– Check for dents, cracks, damage or fitness.
– Check harness and connector for damage or tightness.
•SDM – Check for external damage such as deformation, scratch, crack, peeled paint, etc.
– Check SDM for a cause in itself preventing its proper installation. (There is a gap between SDM
and SDM plate, or it cannot be fixed securely.)
– Check connector or lead wire of SDM for scorching, melting or damage.
– Check SDM connector and terminals for tightness.
– Check if SDM sets a DTC and is judged as malfunctioning according to the diagnostic flow. • Air bag wire harness and connections
– Check for damages, deformities or poor connections.
Refer to “Inspection of Intermittent and Poor
Connections”.
– Check wire harness clamps for tightness.
– For air bag harness including in instrument panel harness replacement, refer to “Passenger Air Bag
(Inflator) Module Repair Harness Installation”.
• Forward-sensor – Check sensor (1) and front panel (2) for damage, bend or rust.
– Check connector (3) or lead wire (4) of forward- sensor for scorching, melting or damage.
I4RS0A820048-01
I4RS0A820049-01
I5RH01820092-01
1. Main harness 4. Instrument panel harness
2. Grounding point 5. Seat harness
3. Floor harness
1
2
3
4
5
I4RS0A820004-01
1
3
2
4
I4RS0A820050-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-113
Air Bag (Inflator) Module and Seat Belt
Pretensioner Disposal
S7RS0B8206018
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 may cause
personal injury. Do not dispose of live
(undeployed) air bag (inflator) modules and
seat belt pretensioners. Because undeployed
air bag (inflator) module / inactivated seat
belt pretensioner must not be disposed of
through normal refuse channels. Undeployed
air bag (inflator) module and inactivated seat
belt pretensioner contain substances that
can cause severe illness or personal injury if
sealed container is damaged during disposal.

Air bag (inflator) module / seat belt pretensioner can be
deployed / activated inside or outside of vehicle.
Deployment / Activation method used depends upon
final disposition of vehicle. Review the following
instructions in order to deter mine which will work best in
a given situation.
Deployment / Activation Ou tside of Vehicle: When you
intend to return the vehicle to service, deploy the air bag
(inflator) module(s) and/or activate seat belt
pretensioner(s) outside of the vehicle.
Deployment / Activation Insi de of Vehicle: When the
vehicle will be destroyed, or salvaged for component
parts, deploy the air bag module(s) and/or activate seat
belt pretensioner(s) installed on vehicle.
WARNING!
The following precautions must be observed
for this work. Failure to observe any of them
may result in personal injury.
• Procedure should be followed strictly as described here.
• Be sure to read “Precautions on Service and Diagnosis of Air Bag System”
beforehand.
• To avoid accidental deployment / activation, this work should be performed
by no more than one person.
• Since smoke is produced when air bag (inflator) module is deployed and
pretensioner is activated, select well-
ventilated area.
• Air bag (inflator) module and seat belt pretensioner will immediately deploy /
activate when 12 volts vehicle battery is
connected to it. Wear safety glasses
throughout this entire deployment /
activation and disposal procedure.
• Wear suitable ear protection when deploying air bag (inflator) module /
activating seat belt pretensioner. Also,
advise those who are in area close to
deployment / activation site to wear
suitable ear protection.
• Do not deploy / activate two or more air bag system components (air bag (inflator)
modules and seat belt pretensioners) at
the same time.
• Never connect deployment harness to any 12 volts vehicle battery before connecting
deployment harness to air bag (inflator)
module and seat belt pretensioner.
Deployment harness sh all remain shorted
and not be connected to 12 volts vehicle
battery till you are ready to deploy air bag
(inflator) module or activate seat belt
pretensioner.

Downloaded from www.Manualslib.com manuals search engine 8B-114 Air Bag System:
Deployment / Activation Outside of Vehicle
When you intend to return the vehicle to service, deploy
the air bag (inflator) module(s) or activate seat belt
pretensioner(s) outside of the vehicle.1) Turn ignition switch to LOCK position and remove key.
2) Wear safety glasses during this deployment / activation procedure.
3) Check that there is no open, short or damage in special tools (deployment harness (A) and adapter
cable (B)). If any faulty is found, do not use it and be
sure to use new special tool.
Special tool
(A): 09932-75031
(B): 09932–76510
4) Short two deployment harness leads (1) together by fully seating one banana plug into the other.
WARNING!
Deployment harness (A) shall remain shorted
and not be connected to 12 volts vehicle
battery till you are ready to deploy air bag
module or activate seat belt pretensioner.

5) Remove air bag (inflator) module(s) or seat belt pretensioner(s) from vehicle referring to “Driver Air
Bag (Inflator) Module Re moval and Installation”,
“Passenger Air Bag (Inflator) Module Removal and
Installation”or “Front Seat Belt Removal and
Installation in Section 8A”.
WARNING!
• For handing and storage of live air bag (inflator) module, select place where
ambient temperature below 65 °C (150 °F),
without high humidity and away from
electric noise.
• Always carry live air bag (inflator) module with trim cover away from you.
• When storing live air bag (inflator) module or when leaving live air bag (inflator)
module unattended on bench or other
surface, always face trim cover up and
away from surface. As the live passenger
air bag (inflator) module must be placed
with its bag (trim cover) facing up, place it
on the workbench with a slit (1) or use the
workbench vise (2) to hold it securely at its
lower mounting bracket (3). It is also
prohibited to place anything on top of the
trim cover and stack air bag (inflator)
modules. This is necessary so that free
space is provided to allow air bag (inflator)
module to expand in the unlikely event of
accidental deployment.
Failure to follow procedures may result in
personal injury.

I4RS0A820084-01

Downloaded from www.Manualslib.com manuals search engine 8B-120 Air Bag System:
13) Separate two banana plugs (1) on deployment harness.
14) Connect deployment harness to 12 volts vehicle battery (2). This will immedi ately deploy or activate
air bag (inflator) module or seat belt pretensioner.
15) Disconnect deployment harness from 12 volts vehicle battery (2) and short two deployment
harness leads together by fully seating one banana
plug into the other.
16) In the unlikely event that air bag (inflator) module or seat belt pretensioner did not deploy / activate after
following these procedur es, proceed immediately
with Step 22) through 25). If air bag (inflator) module
or seat belt pretensioner did deploy or activate,
proceed with Steps 18) through 21).
17) Put on pair of shop gloves to protect your hands from possible irritation and heat when handling deployed
air bag (inflator) module or activated seat belt
pretensioner.
18) Disconnect adapter cable (special tool) from air bag (inflator) module or seat belt pretensioner as soon as
possible. This will preven t adapter cable (special
tool) from damage due to possible contact with hot
air bag (inflator) module or hot seat belt
pretensioner.
19) Check adapter cable as follows. • For air bag (inflator) moduleBe sure to check air bag (inflator) module adapter
cable (special tool) for damage after deployment
and replace it with new adapter cable (special
tool), if it is damaged.
• For seat belt pretensioner Be sure to check seat belt pretensioner adapter
cable (special tool) for damage after seat belt
pretensioner is activated. Replace it with spare
connector (special tool) or new adapter, if
necessary. 20) Dispose of deployed air bag (inflator) module (1) or
activated seat belt preten sioner (2) through normal
refuse channels after it has cooled for at least 30
minutes and tightly seal air bag (inflator) module (1)
or seat belt pretensioner (2) in strong vinyl bag.
Refer to “Deployed Air B ag (Inflator) Module and
Activated Seat Belt Pretensioner Disposal” for
details.
21) Wash your hands with mild soap and water afterward.
NOTE
Remaining steps are to be followed in the
unlikely event that air bag (inflator) module
did not deploy or seat belt pretensioner did
not activate.

22) Ensure that deployment harness has been disconnected from 12 volts vehicle battery and that
its two banana plugs have been shorted together by
fully seating one banana plug into the other.
23) Disconnect deployment harness and adapter cable from air bag (inflator) module or seat belt
pretensioner.
24) Temporarily store undeployed air bag (inflator) module referring to “Precautions on Service and
Diagnosis of Air Bag System” for details.
25) Contact your local distributor for further assistance.
I2RH01820069-01I3JA01820116-01

Downloaded from www.Manualslib.com manuals search engine 8B-122 Air Bag System:
5) Check that there is no open, short or damage in special tools (deployment harness (A), adapter cable
(B) and (C)). If any faulty condition is found, do not
use it and be sure to use new special tool. And
connect adapter cable (B), (C) or (D) to deployment
harness (A) and lock connectors with lock slider.
Special tool
(A): 09932-75031
(B): 09932–77310
(C): 09932–78332
(D): 09932–76510
6) Short two deployment harness leads together by fully seating one banana plug into the other.
WARNING!
Deployment harness (A) shall remain shorted
and not be connected to 12 volts vehicle
battery until you are ready to deploy air bag
(inflator) module or activate seat belt
pretensioner.

7) Connect adapter cable (B) or (C) in series with deployment harness (A) to air bag (inflator) module
or seat belt pretensioner as follows.
• For driver and passenger air bag (inflator) module [A]
Connect adapter cable (B) in series with
deployment harness (A) and push adapter cable
(B) connector to air bag (inflator) module
connector till click can be heard.
• For side-air bag (inflator) module [B] Connect adapter cable (C) in series with
deployment harness (A) and push adapter cable
(C) connector to side bag (inflator) module
connector till click can be heard.
• For side curtain-air bag (inflator) module [C] Connect adapter cable (D) in series with
deployment harness (A) to curtain bag (inflator)
module and lock connector with lock part.
• For seat belt pretensioners [D] Connect adapter cable (D) in series with
deployment harness (A) to seat belt pretensioner
and lock connector with lock part.
[A]
[C]
[D]
1
2
1
2
1
(B) (A)
[B]
1
(C)
(A)
1
(D)
(A)
(A)
(D)
1
I4RS0A820094-02

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-4
How to Read Connector Layout DiagramS7RS0B9101004
[A-1]: Harness symbol and corresponding harness name
A: Battery harness
B: A/C harness
C: Engine harness
D: Injector harness
E: Main harness, Oil pressure switch wire, Console wire
G: Instrument panel harness
J: Side door wire (Power window)
K: Interior light harness, Rear speaker wire, Roof wire
L: Floor harness, G sensor wire (Fuel pump harness)
M: Rear bumper harness
O: Rear end door harness
Q: Air bag/Pretensioner harness
R: (Fuel pump wire)
[A-2]: Connector Number
[B]: Ground point No.
12
11
[B] [B]
Connector code
[A-1] [A-2]L 36
L13 L15
R01
L14
L12
L11L10
L09 L36
R02
L24
L25
L33
L28
L20 L26 (TO O01)
{
L05
L16
L32
L19
L01 (TO G01)
L02 (TO E04)
L03 (TO E05)
L42
R05
R04
L07 (TO K02)
I2RH01910901-01