SsangYong Rexton. Manual - part 645

RESTRAINTS 8B-3

SSANGYONG Y200

SIR SYSTEM OPERATION

The supplemental inflatable restraints (SIR) system is
a safety device used in conjunction with the seat belts.
The airbag does not replace the function of the seat
belt. The driver and the passengers must always fasten
their seat belts and adjust them for a proper fit.

Deployment Condition

Airbag is designed to protect the driver and the front
seat passenger in the event of a significant frontal
impact to the vehicle. The airbags deploy if the force
is applied from a direction within 30 degrees of the
vehicle’s centerline and above 25 km/h (15 mph)
speed. In case of the 0 degree frontal concrete barrier,
airbag may deploy above 25 km/h (15 mph) speed.

The side airbag deploys if the side impact is applied
above 30 km/h.

YAD8B020

Condition That Deployment may not be
Occurred

•

Rear Impact

•

Slight impact or partial impact

•

Incline impact

•

Overturn and fall accident

•

Impact on the material that may be possible to
absorb a lot of impact energy (styrofoam, empty
drum can, etc.)

YAD8B030

AIRBAG MODULE DISCARD

Airbag Module Deployment (Inside Vehicle)

Deploy the airbag before disposing of them. If a vehicle
to be scraped, the airbag may be deployed inside the
vehicle.

•

Before deploying the airbags, remove all loose
objects from the airbag’s expansion area.

•

Deploy the airbags with the vehicle doors closed
and the side windows open.

•

Deploy the airbags only in an evacuated area.
Service personnel who must be present during the
deployment should be at least 10 meters (33 feet)
in front of the vehicle.

•

Do not connect the voltage source until after having
completed all other preparations for the deployment
of the airbags.

•

Allow a deployed airbag module or pretensioner to
cool for at least 30 minutes before handling.

•

If the deployment fails, disconnect the voltage
source and wait 5 minutes before approaching the
vehicle.

Airbag Module Discard (Driver)

1. Disconnect the battery cable and place the vehicle

battery at least 10 meters (33 feet) away from the
airbag module.

Notice: If the airbags are not disconnected, service
cannot begin until one minute has passed after
disconnecting power to the SDM. If the airbags are
disconnected, service can begin immediately
without waiting for one-minute time period to expire.
Failure to temporarily disable the SRS during service
result in unexpected deployment, personal injury
and otherwise unneeded SRS repair.

2. Remove the lower cover of the steering column.

YAD8B040

3. Cut two wires between the airbag and the contact

coil.

4. Strip 13 mm (0.5 inch) of the insulation from the

end of the wires leading to the contact coil.

SSANGYONG Y200

8B-4 RESTRAINTS

5. Use two additional wires, each at least 10 meters

(33 feet) long, to reach from the deployment battery
to the airbag module.

6. Strip 13 mm (0.5 inch) of the insulation from the

ends of these two additional wires.

7. Twist the two wires together at one end.

8. Place the twisted ends of the two wires near the

deployment battery. Do not connect the wires to
the battery at this time.

9. Using the free ends of the 10 meters (33 feet) wires

leading to the airbag module, make two splices,
one at each wires from the airbag module.

10. Wrap the splices with insulating tape.

11. Now that the free ends of the 10 meters (33 feet)

wires are spliced to the airbag module wires and
the ends that are twisted together are near the
deployment battery, clear the area.

12. Untwist the wires that near the deployment

battery.

13. Touch one wire to the positive battery terminal and

touch the other wire to the negative battery
terminal. The airbag module will deploy.

14. R e f e r t o “ D E P L O Y E D A I R B A G M O D U L E

DISPOSAL PROCEDURE” in this section.

Airbag Module Discard (Passenger)

The passenger airbag deployment is the same
procedure of the driver’s. Remove the glove box
instead of the contact coil and cut two passenger
airbag wires.

Refer to “AIRBAG MODULE DISCARD (DRIVER)” in
this section for more information.

Airbag Module Deployment (Outside Vehicle)

Deploy airbag modules in following situations:

•

If the airbag module is removed in the discarded
vehicle.

•

If the airbag module is replaced due to any fault.

•

If an airbag module is damaged during transfer,
storage or servicing.

YAD8B050

Observe following precaution if the airbag is
deployed:

•

Deploy the airbags only in an evacuated area.
Service mechanics should be at least 10 meters
(33 feet).

•

Do not connect the voltage source until after having
completed all other preparations for the deployment
of the airbags.

•

Allow a deployed airbag module or pretensioner to
cool for at least 30 minutes before handling.

•

If the deployment fails, disconnect the voltage
source and wait 5 minutes before approaching the
vehicle.

1. Position the airbag module face up, on flat

ground outdoors, at least 10 meters (33 feet)
from any obstacle or people.

2. Place a vehicle battery at least 10 meters (33

feet) away from the airbag module.

3. Deploy the airbag module using the deployment

tool. If you do not have deployment tool, cut the
two additional wires to the airbag module and
strip 13 mm (0.5 inch) of the insulation from the
end of the wires leading to the airbag module.

4. Refer to “DEPLOYED AIRBAG MODULE

DISPOSAL PROCEDURE” in this section.

Deployed Airbag Module Disposal
Procedure

After deployment, a powdery residue may be on the
surface of the airbag. The powder consists primarily
of cornstarch (used to lubricate the bag as it inflates)
and by-products of the chemical reaction. Sodium
hydroxide dust (similar to lye soap) is produced as a
by-product of the deployment reaction. The sodium
hydroxide then quickly reacts with atmospheric
moisture and is converted to sodium carbonate and
sodium bicarbonate also known as baking soda}.
Therefore, it is unlikely that sodium hydroxide will be
present after deployment. Wear gloves and eye
protection during the disposal procedure.

After deployment, the metal surfaces of the airbag
module will be hot. In order to avoid the risk of an
injury or a fire, do not place the deployed airbag module
near any flammable objects, and allow the airbag
module to cool for 30 minutes before handling. Deploy
an airbag or pretensioner before disposing of it.

This includes those in a whole vehicle being scrapped.
If the vehicle is still within the warranty period contact
the SsangYong regional service manager for approval
or special instructions before deploying an airbag
module or pretensioner.

RESTRAINTS 8B-5

SSANGYONG Y200

COMPONENT FUNCTION

Back (Cushion)

•

The airbag system performance is influenced on
the cushion size, shape and position.

•

The cushion strength is a important parameter on
the impact absorb effect.

•

Therefore, the control of the airbag performance
depe nds o n c u s h i o n s iz e , s h a p e , in fla tor
characteristic and vent hole size for the gas
discharge.

•

The cushion’s material and folding function to control
th e c ushio n d e p l o yme n t d i re ct io n a n d th e
performance to protect passenger’s face.

Module Cover/Housing

•

It is a type of a container that includes the cushion
and the inflator.

•

The module housing functions to deliver the reaction
force between the body structure and the airbag
(The airbag reaction is absorbed generally to the
steering wheel or instrument panel).

•

The module cover must be considered in a viewpoint
of protection between exterior, internal units and
cushion. Also the module cover should be designed
not to cause any personal injury for deployment.

Inflator

•

The inflator is a type of the direct gas generated
device.

•

The inflator with initial low pressure provides
negative restraint effect regarding passengers
moving and time.

On the contrary, the inflator with initial high pressure
allows other components of the airbag to make a
excessive impact resulting in any personal injury.

Thus, the inflator output must be optimized
according to the characteristic of the vehicle and
passenger moving.

•

The discharge gas has no toxicity or inflammability
and also it is the important parameter to control the
high temperature for gas firing.

Airbag Module

The driver airbag module is under the center pad of
the steering wheel.

The passenger airbag module is installed in the
instrument panel at passenger side.

The driver and passenger side airbag is inside each
seat.

Notice: Do not disassemble the airbag module
because unintentional deployment of the airbags
resulting from any damage or interference of the module
can cause injury.

SDM (Sensing and Diagnostic Module)

1. The airbag system consists of the module section

(driver, passenger and side), seat belt section and
SDM.

2. The SDM has no user-serviceable parts and

monitors the system components continuously. The
SDM also records any faults which are discovered.

3. The SDM allows the fault codes to be retrieved with

a scan tool and illuminates a warning lamp that
alerts the driver to any faults.

The SDM located on floor beneath the floor console
assembly. The SDM performs the following functions:

•

Impact decision processor function.

Determine the airbag deployment through the
impact signal of the accelerometer sensor and the
safety sensor.

•

Malfunction detection and recording any faults that
are detected.

Monitor the supplemental restrain system electrical
components and set a diagnostic trouble code
when malfunction is detected.

•

Display airbag fault codes

Display airbag fault codes and system status
information when connected to a scan tool.

•

Self-diagnosis function

Illuminate the AIRBAG indicator to alert the driver
to any fault.

•

Power supply function

Provide a reserve power source to deploy the
airbags and pretensioners if an accident has
disabled the normal power source.

Acceleromenter Sensor

The accelerometer sensor electronically represents the
acceleration or deceleration of the vehicle during a
frontal impact.

In this electronic representation, the electrical signal
is proportional to the acceleration or deceleration of
the vehicle.

YAD8B060

SSANGYONG Y200

8B-6 RESTRAINTS

Safety Sensor

The safety sensor is safety device made up of a dual-
contact, electro-mechanical switch that:

1. Acts independently of the electronic components.

2. Connects the acceleration sensor in series in order

to make up for the weak points in the current
electronic sensor.

Micro Controller

This device receives the impact signal from the sensor
for vehicle impact and identifies whether the current
condition is necessary for airbag deployment or not.
And then the controller sends the specified currents
to the airbag ignition circuit as needed.

This device always monitors the airbag system in
conduction with the diagnostic circuit. When it is
detected any problem, it illuminates the airbag warning
indicator to inform driver of the fault and stores the
fault information.

Contact Coil

The contact coil is installed between the steering wheel
and the steering column and contains a coil that enables
to contact electrically between the airbag wiring
harness, the driver airbag module and the horn switch.

Notice: Turning the steering wheel more than three
and one-quarter turns may damage the clock spring.
The contact coil should never be disassembled and
must be replaced if the airbag have been deployed.

YAD8B070

Notice: Turn the label of the clock spring clockwise to
l o c k a n d t u r n t h e l a b e l o f t h e c l o c k s p r i n g
counterclockwise approximately 2.9 ± 0.2 turns to the
neutral positions with the front wheels ahead.

Align the pointed marks “

” .

Airbag Warning Lamp

The instrument cluster contains an airbag warning
indicator bulb to verify the operation of the AIRBAG
indicator and sensing and diagnostic module (SDM).

YAD8B080

Fault contents

System OK

System fault

Internal SDM fault

Power supply circuit open

and fuse open

Warning lamp circuit open

SDM fault

Warning lamp

status

Flash at seven

times for 7 seconds

and then turn off

Warning lamp stays

No turn on

The SDM performs a turn-on test when the ignition is
turned ON. The SDM flashes the AIRBAG indicator
seven tomes by supplying an intermittent ground to
the indicator lamp circuit. After flashing seven times,
the AIRBAG indicator will turn off if no more
malfunctions have been detected.

Wiring Harness Connectors

If the sensing and diagnostic module (SDM) electrical
connector is not attached properly, a built in shorting
bar will connect the wire from airbag warning lamp with
the SDM ground wire. This turns on the AIRBAG
indicator.

To prevent deployment during servicing, additional
shorting bars are located in following locations:

•

Driver airbag module connector

•

Passenger airbag module connector

•

Driver and passenger side airbag module connector

•

SDM wiring harness connector

•

Contact coil connector to airbag wiring harness

The shorting bar is only a backup safety device. Always
disable the supplemental restraints system (SRS)
before beginning any service procedure.

Belt Pretensioner

The belt pretensioner enables to retract the driver and
the passenger seat belt webbing to reduce any personal
impact when accounted a frontal collision.

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