SSANGYONG NEW ACTYON SPORTS 2012 Service Manual

01-24
6. A/C COOLING CYCLE
1) System Flow
"Compression -> Condensation -> Expansion -> Evaporation" -
2) Functions
(1) Compressor
Condition: Gas
Function: Circulates the refrigerant and increases the pressure and temperature for easier
evaporation. -
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(2) Condenser
Condition: Gas/Liquid
Function: Cools and condenses the refrigerant by using ambient air to liquefy it under high
pressure. -
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(3) Receiver drier
Condition: Gas/Liquid
Function: Keeps the refrigerant free from moisture by separating/collecting the moisture from it. -
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(4) Expansion valve
Condition: Liquid/Liquefied gas
Function: Performs adiabatic expansion and flow control for easier evaporation. -
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(5) Evaporator
Condition: Liquefied gas/Gas
Function: Cools the air by absorbing the heat from the air around the evaporator. -
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3) Description for Each Cycle
(1) Compression
The evaporated refrigerant in the evaporator enters to the compressor. And the refrigerant gas
is compressed until it can be liquefied at ambient temperature.
Thus, the low refrigerant pressure is maintained so that the liquid refrigerant can be evaporated
actively at low temperature (around 0 ℃). -
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(2) Condensation
The high pressure and high temperature gas (refrigerant) from the compressor is cooled down
by the fresh air entered into the condenser. Then, this gas is converted to liquid and collected
in the receiver drier.
The heat generated from the high pressure refrigerant is dissipated to the ambient air, and it is
called "heat of condensation".
The heat of condensation is the summation of the heat of vaporization (heat that the refrigerant
absorbs from the inside of the vehicle) and the calorific value converted from the amount of
work which is needed to compress. -
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(3) Expansion
The liquid refrigerant lowers the pressure making its evaporation easily accomplished.
This process (lowering the pressure to the level at which evaporation easily takes place before
the liquid refrigerant is sent to the evaporator) is called
"Adiabatic Expansion".
During adiabatic expansion, the expansion valve lowers the pressure of the refrigerant and
determines the correct amount of refrigerant going into the air conditioning evaporator.
That is, the amount of heat, which is needed to stop the evaporation, is determined according
to the cooling load.
The expansion valve detects this and regulates the amount of the refrigerant exactly. -
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(4) Evaporator
The refrigerant is converted from liquid to gas in the evaporator.
(The refrigerant in the form of fog in the evaporator is vaporized actively)
At this time the refrigerant, in the form of liquid, absorbs the heat in the air which is need for
evaporation (latent heat) and is cooled down. Then the blower blows the cooled air inside the
vehicle to lower the temperature.
There are liquid refrigerant from the expansion valve and evaporated refrigerant in the
evaporator.
The evaporation temperature can be predicted from the evaporation pressure (i.e. relationship
between saturation pressure and saturation temperature).
It is important to keep the pressure inside the evaporator low, so that the refrigerant is
evaporated at low temperature to make sure the completely evaporated refrigerant is entered
into the compressor. -
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01-26
7. A/C CIRCUIT DIAGRAM
1) A/C (AUTO): PWM Motor, Compressor, Air Mix Motor,
Sun-Load Sensor, Intake Air Temperature Sensor (Thermo AMP)

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2) A/C (AUTO): Blower motor (mode, air source), Inside air/Humid
sensor, Outside air temperature sensor

02-38810-01
1. CAUTIONS FOR AIR BAG OPERATION
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.
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.
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.
Before removing or installing any air bag related components, disconnect the negative battery
cable. 1.
2.
3.
4.
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 Status Air Bag OperationSeat Belt Pretensioner Operation
Fastened Over reference speed Below reference speed
Unfastened Below reference speed Inoperative
Failure, during initial
diagnosisBelow reference speed Below reference speed
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
Never operate
Seldom oeprate
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. -
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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. -
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-The vehicle is stationary or a front collision occurs with low speed.
A rear collision occurs.
A minor collision occurs. -
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02-58810-01
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. -
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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. -
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02-78810-01
1. OVERVIEW
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)
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.

02-8
STICS
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.Driver side (pretensioner)
Air Bag Warning Lamp
2. CONFIGURATION
Seat belt pretensioner
Driver Air Bag
(DAB)