YH4
GRAND
VITARA
1. From ignition switch
2. ªAIR BAGº fuse in ªAIR BAGº fuse box
3. SDM
4. Passenger seat belt pretensioner
5. Driver seat belt pretensioner : Shorting bar
: Air bag harness
10B-50 AIR BAG SYSTEM
CODE 44 ± DRIVER PRETENSIONER INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
CODE 48 ± PASSENGER PRETENSIONER INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
(Page 1 of 2)
CAUTION:
When measurements are requested in this chart use specified digital multimeter with correct terminal
adapter from special tool (Connector test adapter kit).
When a check for proper connection is requested refer to ªIntermittent and Poor Connectionsº in this
section.
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.
DTC WILL SET WHEN:
The voltage measured at driver or passenger seat belt pretensioner initiator circuit is above a specified value for
specified time.
YH4
GRAND
VITARA
1. From main fuse
2. Ignition switch
3. ªIG
.COIL METERº fuse in J/B7. Connection detection pin
8. SDM
8-1. ªAIR BAGº warning lamp driver circuit 4. ªAIR BAGº warning lamp in combination meter
5. ªAIR BAGº fuse in ªAIR BAGº fuse box
6. ªAIR BAGº monitor coupler : Air bag harness
AIR BAG SYSTEM 10B-53
CODE 61 ± ªAIR BAGº WARNING LAMP CIRCUIT FAILURE (Page 1 of 2)
CAUTION:
When measurements are requested in this chart use specified digital multimeter with correct terminal
adapter from special tool (Connector test adapter kit).
When a check for proper connection is requested refer to ªIntermittent and Poor Connectionsº in this
section.
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.
DTC WILL SET WHEN:
The voltage at the ªAIR BAGº warning lamp circuit terminal ªA5º does not match the commanded state of the warn-
ing lamp driver for specified time.
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GRAND
VITARA
AIR BAG SYSTEM 10B-55
ON-VEHICLE SERVICE
SERVICE PRECAUTIONS
SERVICE AND DIAGNOSIS
WARNING/CAUTION labels are attached on each part of air bag system components (SDM, air bag (inflator) mod-
ules and seat belt pretensioners). Be sure to follow the instructions.
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 or any other air bag system components. Modifications
can adversely affect air bag system performance and lead to injury.
Failure to follow procedures could result in possible air bag system activation, personal injury or un-
needed air bag system repairs.
Many of service procedures require disconnection of ªAIR BAGº fuse and air bag (inflator) modules (driver and
passenger) 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 chart requests
it, as this will set a diagnostic trouble code.
The ªAir Bag Diagnostic System Checkº must be the starting point of any air bag diagnostics. The ªAir Bag Diag-
nostic System Checkº will verify proper ªAIR BAGº warning lamp operation and will lead you to the correct chart
to diagnose any air bag malfunctions. Bypassing these procedures may result in extended diagnostic time, incor-
rect diagnosis, and incorrect parts replacements.
Never use air bag component parts from another vehicle.
If the vehicle will be exposed to temperatures over 93C (200F) (for example, during a paint baking process),
remove the air bag system components beforehand to avoid component damage or unintended system activa-
tion.
When servicing, if shocks may be applied (eg., dropped from a height of 90 cm (3 ft) or more) to air bag system
component parts, remove those parts beforehand.
When using electric welding, be sure to disconnect air bag (inflator) module and seat belt pretensioner connec-
tors (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 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 proce-
dures listed in the following pages to temporarily disable the air bag system. Refer to appropriate ser-
vice manual procedures. Failure to follow procedures could result in possible air bag system activa-
tion, personal injury or unneeded air bag system repairs.
YH4
GRAND
VITARA
1. Air bag harness
2. ªAIR BAGº monitor coupler
3. Yellow connector of contact coil and combination
switch assembly
4. Yellow connector of passenger air bag (inflator) module
5. Steering support member
1. Air bag harness
2. ªAIR BAGº monitor coupler
3. Yellow connector of contact coil and combination
switch assembly
10B-56 AIR BAG SYSTEM
DISABLING AIR BAG SYSTEM
1) Turn steering wheel so that vehicle's wheels (front tires) and
pointing straight ahead.
2) Turn ignition switch to ªLOCKº position and remove key.
3) Remove ªAIR BAGº fuse from ªAIR BAGº fuse box.
4) Disconnect Yellow connector of contact coil and combination
switch assembly.
ii) Release locking of lock lever.
ii) After unlocked, disconnect to connector.
5) Pull out glove box while pushing its stopper from both right and
left sides and disconnect Yellow connector of passenger air bag
(inflator) module.
ii) Release locking of lock lever.
ii) After unlocked, disconnect to connector.
NOTE:
With ªAIR BAGº fuse removed and ignition switch ON, ªAIR
BAGº warning lamp will be ON.
This is normal operation and does not indicate an air bag
system malfunction.
ENABLING AIR BAG SYSTEM
1) Turn ignition switch to ªLOCKº and remove key.
2) Connect Yellow connector of contact coil and combination
switch assembly, and be sure to lock connector with lock lever.
ii) Connect connector.
ii) Lock connector with lock lever.
YH4
GRAND
VITARA
1. Yellow connector of passenger air bag (inflator) module
2. Steering support member
3. Air bag harness
AIR BAG SYSTEM 10B-57
3) Connect Yellow connector of passenger air bag (inflator) mod-
ule, and be sure to lock connector with lock lever.
ii) Connect connector.
ii) Lock connector with lock lever.
4) Install glove box.
5) Install ªAIR BAGº fuse to ªAIR BAGº fuse box.
6) Turn ignition switch to ON and verify that ªAIR BAGº warning
lamp flashes 6 times and then turns off.
If it does not operate as described, perform ªAir Bag Diagnostic
System Checkº in this section.
HANDLING AND STORAGE
SDM
WARNING:
Never power up air bag system when SDM is not rigidly at-
tached to the vehicle. Otherwise, personal injury may result.
CAUTION:
After detecting one time of such collision as to meet deploy-
ment conditions, the SDM must not be used.
Refer to ªDiagnosisº when checking the SDM.
Never attempt disassembly of SDM.
When storing SDM, select a place where neither high tempera-
ture nor high humidity is anticipated and oil, water and dust are
kept off.
If SDM was dropped from a height of 90 cm (3 ft) or more or if it
is found to be damaged or deformed, replace it with a new one.
If installation part of SDM was damaged, repair that part com-
pletely before reinstallation.
All SDM and mounting bracket fasteners must be carefully
torqued and the arrow must be pointed toward the front of the ve-
hicle to ensure proper operation of the air bag system.
YH4
GRAND
VITARA
10B-62 AIR BAG SYSTEM
1. Air bag wire harness
2. Ground
3. SDM case ground
AIR BAG WIRE HARNESS AND CONNECTORS
Air bag wire harness can be identified easily as it is covered with a
yellow protection tube. Be very careful when handling it.
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 all air bag system grounding points are clean and
grounds are securely fastened for optimum metal-to-metal con-
tact. Poor grounding can cause intermittent problems that are dif-
ficult to diagnose.
DISPOSAL
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 the air bag according to deployment
procedure described under ªAir Bag (Inflator) Modules Disposalº
and to activate the pretensioner according to activation procedure
described under ªSeat Belt Pretensioners Disposalº.
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.
YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-71
AIR BAG (INFLATOR) MODULES DISPOSAL
WARNING:
Failure to follow proper air bag (inflator) module disposal procedures can result in air bag deployment
which may cause personal injury. Undeployed air bag (inflator) module must not be disposed of
through normal refuse channels.
The undeployed air bag (inflator) module contain substances that can cause severe illness or personal
injury if the sealed container is damaged during disposal.
Do not dispose of the live (undeployed) air bag (inflator) modules.
The method employed depends upon the final disposition of the particular vehicle, as noted in ªDeployment Out-
side Vehicleº and ªDeployment Inside Vehicleº in this section.
Deployment Outside Vehicle disposing of the air bag (inflator) module(s) only (i.e., the vehicle itself will be. . . . . .
used again).
Deployment Inside Vehicle scrapping the entire vehicle including the air bag (inflator) module(s).. . . . . . . .
DEPLOYMENT OUTSIDE VEHICLE
Use this procedure when the vehicle itself is used again (only the air bag (inflator) module(s) are disposed of).
WARNING:
Following precautions must be observed for this work. Failure to observe any of them may result in
personal injury.
To avoid an accidental deployment, this work should be performed by no more than one person.
The procedure should be followed strictly as described here.
Be sure to read ªService Precautionsº in this section for the air bag (inflater) module beforehand.
Never connect deployment harness to any power source before connecting deployment harness to
the air bag (inflator) module. Deployment harness shall remain shorted and not be connected to a
power source until the air bag is to be deployed.
Since a large amount of smoke is produced when air bag is deployed, select a well-ventilated area.
The air bag (inflator) module will immediately deploy the air bag when a power source is connected
to it. Wear safety glasses throughout this entire deployment and disposal procedure.
Wear suitable ear protection when deploying air bag. Also, advise those who are in the area close to
deployment site to wear suitable ear protection.
Do not deploy driver and passenger air bag (inflator) modules at the same time.
The following procedure requires use of special tool(s) (deployment harness and passenger air bag (inflator) mod-
ule deployment fixture). Do not attempt procedure without it (them).
YH4
GRAND
VITARA
1
2
1. Deployed driver air bag (inflator) module
2. Gloves
For driver air bag (inflator) module
10B-76 AIR BAG SYSTEM
17) Put on a pair of shop gloves to protect your hands from possible
irritation and heat when handling the deployed air bag (inflator)
module.
NOTE:
As a precaution, gloves and safety glasses are recom-
mended to prevent any possible irritation of the skin or
eyes.
18) Disconnect the deployment harness from the air bag (inflator)
module as soon after deployment as possible. This will prevent
damage to the deployment harness due to possible contact
with the hot air bag (inflator) module canister. The deployment
harness are designed to be reused. They should, however, be
inspected for damage after each deployment and replaced if
necessary.
19) Dispose of the deployed air bag (inflator) module through nor-
mal refuse channels after it has cooled for at least 30 minutes
and tightly seal the air bag (inflator) module in a strong vinyl
bag. (Refer to ªDeployed Air Bag (Inflator) Modules Disposalº
in detail.)
20) Wash your hands with mild soap and water afterward.
NOTE:
The remaining steps are to be followed in the unlikely event
that the air bag (inflator) module did not deploy after following
these procedures.
21) Ensure that the deployment harness has been disconnected
from the power source and that its two banana plugs have been
shorted together by fully seating one banana plug into the oth-
er.
22) Disconnect the deployment harness from the air bag (inflator)
module.