8810-01 02-3

1. CAUTIONS FOR AIR BAG OPERATION

1. When there is any deployed air bag (including seat belt pretensioner), the air bag unit should be
replaced. Any DTC (Diagnostic Trouble Code) in the air bag unit should not be cleared since the
unit has data for status when the air bag was deployed as well as information related to the air bag
deployment.
2. Note that the used components related to the air bag, especially the air bag unit, should be
packaged in an air tight container to prevent any damage.
3. Do not connect a tester to any connector or component to check supply voltage or resistance of air
bag related components. The detonator may explode due to a sudden extra power supplied by the
tester.
4. Before removing or installing any air bag related components, disconnect the negative battery
cable.

Collision sensors, a kind of impact G (acceleration) sensor, detect the lateral and longitudinal collisions
and determine whether or not to deploy air bags. The roles of each collision sensor are as follows:

Front G sensors (inside the air bag unit)

Send signals to the front air bags (driver and passenger air bags) and the driver's and front
passenger's seat belt pretensioners. When the front collision G sensor sends out only the air bag
deployment signal, the signal deploys the two front air bags and activates their seat belt
pretensioners.

Once an air bag deploys, its repair parts vary according to the deployment situation and damage to the
vehicle from collision. Needed repairs also slightly vary between the front air bags and the curtain air
bags. The following are the differences:

Replacement parts when the front air bags deploy:

Air bag unit and its wiring (including connector), seat belt pretensioner and its wiring (including
connector), whole front air bags, instrument panel (IP)
02-4

2. OPERATING RANGE
▶In the event of the collision, the air bag will be deployed when the G value detected by the G
sensor in the SDM is beyond the impact limit.

Seat Belt Pretensioner Operation

Seat Belt Status Air Bag Operation

Fastened Over reference speed Below reference speed

Unfastened Below reference speed Inoperative
Failure, during initial
Below reference speed Below reference speed
diagnosis
No sensor Below reference speed Below reference speed

* This is based on frontal collision and reference speed is between approx. 4 and 24 km/h.

▶The air bag is deployed in the event of frontal collisions while drving.
But, there are exceptional cases as follows:

Situation Condition
May operate or not - Underbody impact from the road surface, impact against the curb at a
very high speed, or dropping impact onto the road surface with a
large angle occurs.
- The vehicle rolls over or tips over sideward by severe impact.
Never operate - The vehicle is stationary or a front collision occurs with low speed.
- A rear collision occurs.
- A minor collision occurs.
Seldom oeprate - A collision with oblique impact to the front seat direction or a front collision
to the diagonal direction occurs.
- A front/rear collision occurs.
- The vehicle rolls over or tips over sideward with minor impact.
- The air bag warning lamp is on.
 8810-01 02-5

3. GENERAL WARNINGS
- Do not diagnose the circuit with a circuit tester or attempt to modify any air bag components including
the steering wheel, air bag mounting area and harness.
- Incorrect inspection could cause a problem with an air bag and seat belt pretensioner, and they
cannot protect occupants properly. Inspection and repair service should be done only by a qualified
technician.
- An infant or a child should not be seated on the front seat alone or on an adult's lap. An infant or a
child could be severely injured by air bag deployed.
- A child restraint system should be placed on the rear seat which has the 3-point type seat
belt.
- Never install a child restraint system on the front seat. Impact by the air bag inflation might cause
severe injury or even death.
- When an occupant fastens the seat belt with unstable or inclined posture, the air bag cannot protect
the occupant properly. Moreover, the occupant may be injured by the air bag.
- Do not incline toward the steering wheel while driving. If you hit the air bag before it is fully inflated,
brain or neck injury, or even death can occur.
- Be careful not to strike the steering wheel, air bag mounting area, any air bag related component
(including wiring) and seat belt pretensioner. You might get severely injured by sudden deployment of
the air bag.
- The air bag contains explosive materials, so handle it carefully when disposing or replacing it.
- The air bag components will be very hot immediately after deployment. Do not touch them until they
cool down.
- Once the air bag/seat belt pretentioner is triggered, it will not deploy again even if an additional impact
is applied to it. Once triggered air bag/seat belt pretensioner related components cannot be reused,
so they should be removed from the vehicle and the whole system should be replaced with a new
one.
- Do not place any object or sticker on the air bag mounting area for correct and safe activation of the
air bag.
- Do not bang the door. Otherwise, an air bag might operate erroneously.
- Hold the outer rim of the steering so that the air bag can inflate without any hindrance.
- Do not incline toward the steering wheel or hold the steering wheel with your hands
crossed. It will cause a problem with the air bag activation or severe injury when the air bag
inflates.
- Never put your hands or feet on the dash board. You can severely injured when the air bag
inflates.
- It is normal that a loud noise, dust and smoke occur when the air bag and seat belt pretensioner
operate.
- The gas come out of air bag/seat belt pretensioner activation is non-toxic nitrogen gas. However, if
this gas occurs irritation to your skin, eyes, nose, and so on, wash it out with clean water. Seek
medical help if symptoms develop.
02-6

- The windshield or windows can be broken due to impact from driver or passenger air bag
inflation.
- When any repairs are needed to the air bag mounting area or its surrounding area, or when an
accident has occurred without the air bag deployment, have the air bag system/seat belt
pretensioner checked for safety.
- The air bag is a unit to save an occupant's life from sudden accident and it inflates at a very fast
speed by gas with high temperature, which might cause injury, such as an abrasion, bruise and
burn depending on the accident conditions.
- Normal inflation of the air bag could make a loud noise and smoke (non-toxic gas).
- A minor collision, which occupants can be protected only by seat belts, will not activate the air bag
system. It is because that air bag inflation at a minor collision could cause more injury such as an
abrasion, bruise and burn.
- Check the air bag system even though there is no fault in the air bag system when 10 years have
passed after air bag installation.
 8810-01 02-7

4. MAJOR CHANGES
Contact coil

Heated steering wheel connector

(to contact coil)

Pin No. Name

1 Ground
2 IGN
Fixing key
3 Heated steering
wheel switch
ON/OFF
4 Heated steering
wheel switch
signal

- Heated steering wheel connector adopted and its appearance changed

- Fixing keys (3 off) for engaging with multifunction switch
02-8

1. OVERVIEW

For the air bag system in KORANDO SPORTS, the seat belt pretensioners on both sides as well as the
driver/passenter air bags are deplyed when the front air bag is deployed like as they did.

Collision sensors, a kind of impact G (acceleration) sensor, detect the lateral and longitudinal collisions
and determine whether or not to deploy air bags. The roles of each collision sensor are as follows:

Front G sensors (inside the air bag unit))

Send signals to the front air bags (driver and passenger air bags) and the driver's and front
passenger's seat belt pretensioners. When the front collision G sensor sends out only the air bag
deployment signal, the signal deploys the two front air bags and activates their seat belt
pretensioners.

Once an air bag deploys, its repair parts vary according to the deployment situation and damage to the
vehicle from collision. Needed repairs also slightly vary between the front air bags and the curtain air
bags. The following are the differences:

Replacement parts when the front air bags deploy:

Air bag unit and its wiring (including connector), seat belt pretensioner and its wiring (including
connector), whole front air bags, instrument panel (for vehicle with passenger air bag)
02-10

2. CONFIGURATION
Air Bag Warning Lamp

Driver Air Bag

(DAB)

Driver side (pretensioner) STICS

Seat belt pretensioner

40 ms after receiving the air bag deployment signal at

the vehicle speed 3 km/h or higher, it sends out the door
UNLOCK signal for 5 seconds.
 8810-01 02-11

Passenger Air Bag

Upper side Lower side

Air Bag Unit (SDM)

Passenger pretensioner

The collision G sensor is installed inside

this. And it sends out signals to deploy the
front air bags (driver and passenger air
bags) and/or the driver and passenger
seat belt retensioners. When the front
collision G sensor sends out only the air
bag deployment signal, the signal deploys
the two front air bags and activates their
seat belt pretensioners.
02-12

3. OPERATION PROCESS
The overall air bag operation process and its functions and roles are broadly explained in this block
diagram. This diagram summarizes and highlights the functions adopted by Ssangyoung Motors.

1) Air Bag System Block Diagram

8810-01 02-13
02-14

4. DEPLOYMENT
1) Air Bag System Deployment (Firing Loop)
According to the collision deceleration rate that each collision G sensor reads, the air bag unit sends out
about 2~4 or higher Amp current. This current generates some heat, which fires the detonator in the
inflator.
The table shows the basic inner resistance of the air bag related module and the basic instant current
necessary for firing.

Air bag module Seat belt pretensioner(BPA)

DAB /PAB

Resistance (at -30 ~ 85˚C) 2 ±0.3 Ω 2.15 ±0.35 Ω

Firing current 1.2 Amps 0.8 Amps

- Please do not connect a tester to any air bag connector or single item to measure the supplied
power or resistance. The detonator may explode due to a sudden extra power supplied by the
tester.
- Before removing or installing any air bag related components, disconnect the negative battery
cable.

2) Air Bag Deployment Signal Output (Crash Out)

When the air bag deploys, the signal is sent to STICS to perform the basic security operation which is
the automatic door unlock function that release the automatic door lock mode.

200ms
Deployment signal
output (crash out)

▶ Automatic Door Unlock (Crash unlock: unlock when colliding)

1. The air bag collision signal input cannot be accepted within 7 seconds after turning the ignition key to
"ON" position.
2. After this period, the door lock system outputs "UNLOCK" for all doors for 5 seconds from 40 ms after
receiving the air bag collision signal.
3. Even though the key is turned to "OFF" position during the output of "UNLOCK", the output continues
on for remaining period.
4. The function is erased when turning "OFF" the ignition switch.
 8810-01 02-15

ING KEY ON
SW(*1) OFF

T1

Deployment ON
signal OFF
T2

Door unlock ON
OFF T3
relay

T1 : 200ms T2 : 40ms T3 : 5s

▶ Cautions for Door Lock/Unlock Control

1. The "Unlock" control by air bag signal prevails over any "LOCK" or "UNLOCK" control by other
functions.
2. The "LOCK/UNLOCK" request by other functions will be ignored after/during the output of
"UNLOCK" by the air bag.
However, the door lock is controlled by other functions when the ignition switch is "OFF".
3. "LOCK" (or "UNLOCK") output is ignored if "LOCK" (or "UNLOCK") output is required while
performing the output of "LOCK" (or "UNLOCK").
However, UNLOCK by air bag signal and operation by the remote control key are valid.
4. If the door lock system outputs "LOCK" and "UNLOCK" simultaneously, only the "LOCK" output can
be activated.
02-16

5. AIR BAG WARNING LAMP OPERATIONAL CONDITIONS

The air bag warning lamp on the instrument panel has a few operational conditions. The following are
the conditions:

▶ When Turning the Ignition Switch to ON Position Initially

The air bag unit performs a turn-on test when the ignition is turned on initially. The air bag unit flashes the
air bag warning lamp 6 times at 1 Hz interval. After that, the air bag warning lamp will go off if no
malfunction have been detected.

ON
IGN KEY
OFF

Air bag ON
warning lamp OFF

▶ When the Air Bag Unit Detects Any Malfunctions in Unit

When it is recorded as a system failure in the air bag unit, the air bag warning lamp on the instrument
panel comes on for about 6 seconds and goes off for 1 second. Then the waning lamp stays on.

ON
IGN KEY
OFF
Air bag ON
warning lamp OFF
6sec.

▶ When the Air Bag Unit Detects Any Intermittent Failure

When, due to an error from outside the system, the intermittent failure signal is received 5 times or less,
the air bag warning lamp comes on for about 6 seconds and then, goes off.

ON
IGN KEY
OFF

Air bag ON
warning lamp OFF
6sec.
 8810-01 02-17

6. CIRCUIT DIAGRAM