2012 SSANGYONG NEW ACTYON SPORTS 4WD

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Operation ▶
Description Mode Conditions
Driving
mode2H 2 Wheel drive
(rear wheel)Rear-wheel drive mode. This is used under
normal or high-speed driving conditions on
public roads or highways.
4H 4 Wheel drive
(high speed)This is used under sandy, muddy or snow-
covered road conditions
4L 4 Wheel drive
(low speed)This is used for maximum traction.
When cornering with low speed in 4WD
condition, there could be tire dragging, some
mechanical shocks and resistances in
vehicle’s drive train. These are normal
conditions due to internal resistance in the
drive train when the 4WD system is properly
working
Mode change2H←4H2 Wheel drive
↔4 Wheel driveShifting is possible while driving at the speed
of 70 km/h or less
2H,
4H↔4L2 Wheel drive,
4 Wheel drive (high
speed)
↔4 Wheel drive
(low speed)For Automatic Transmission:
For Manual Transmission:
Stop the vehicle on level ground and
move the gear selector lever into the
“N” position. Turn the switch to the
desired position. ·
Stop the vehicle on level ground and
move the gear selector lever into the
“N” position. Then turn the switch to
the desired position while depressing
the clutch pedal. ·
To make the mode change easily, stop
the vehicle on level ground and turn the
mode switch to the desired position and
move the shift lever to "N"-"R"-"N" while
depressing the brake pedal.

07-8
3. SYSTEM LAYOUT
Indicators ▶
4H: 4WD HIGH indicator ON
4L: 4WD LOW indicator ON
2H: Indicator OFF
System failure: 4WD CHECK
warning lamp ON 4WD mode switch ▶
4H: 4 Wheel drive, high speed
4L: 4 Wheel drive, low speed
2H: 2 Wheel drive
TCCU
Solenoid valve

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4. IWE LOCKING HUB SYSTEM
1) Overview
The vacuum locking hub uses the IWE (Integrated Wheel End) system, and in this system, the
vacuum is generated only within the hub actuator.
It is structured to transmit power to the front section after the actuator hub is engaged following
the release of vacuum from the drive shaft end gear and the hub end gear
Locking hub actuator
Locking hub actuatorVacuum
solenoid valve
for IWE
Vacuum
pumpBooster
Electric
signalTo atmosphereTCCU Operating Process
Vacuum generation process in front hub actuator
Hub actuator (FR)
Hub actuator (FL) Vacuum pump
TCCU
to atmosphere to atmosphere
Vacuum solenoid valve
4WD mode
switch

07-10
2) Vacuum System Related to 4WD
During 2WD mode, the vacuum
pressure from vacuum pump is
continuously transmitted to the
locking hub system.
This vacuum pressure pulls in
the locking hub actuator so that
it will not be engaged with the
front end hub gear.
22WD (applying vacuum pressure to hub
actuator) The vacuum pressure pulls in the
locking hub actuator so that it will not be
engaged with the front end hub gear.The vacuum pressure is released from
the hub actuator. At this time, the front
hub end gear is engaged.
tmosphere
(in 4WD
mode) Hub actuator (LH)Hub actuator (RH)
In 4WD mode, the TCCU blocks the transferring
of vacuum pressure from vacuum pump to
locking hub by supplying the power to solenoid
valve.

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Under View (4WD, Automatic Transmission)
Rear suspension
1. SUSPENSION
The suspension is the device to connect the axle and vehicle. It absorbs the vibrations and
impacts from road surface, which enhances the comforts, driving force, braking force and
drivability.
Front suspension

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3) Parts Arrangement
Part nameVehicle with CBSVehicle with ABS/EBDVehicle with ESP
HECU
Not appliedAppliedApplied Front wheel speed sensor
Rear wheel speed sensor
ABS warning lamp
EBD indicator
Longitudinal G sensor 2WD: N/A, 4WD: Applied Not applied
Sensor cluster
(Yaw rate sensor,
lateral/longitudinal G sensor)
Not applied Applied
ESP indicator
ESP OFF switch and warning
lamp
Steering wheel angle sensor
4) Components
ABS ESP+ARP
2WD 4WD 2WD 4WD
Whhel speed sensor 4 4 4 4
Sensor cluster N/A N/A Applied Applied
G-sensor N/A Applied N/A N/A
2H G-sensor - Operating - -
4H G-sensor - Operating - -
4L G-sensor - Operating - -
2H sensor cluster - - Operating Operating
4H sensor cluster - - Operating Operating
4L sensor cluster - - Operating Operating

09-28
Front Brake AssemblyFront Wheel Speed Sensor (4WD)
HECU
2. SYSTEM LAYOUT
Master Cylinder and Booster
Brake Pedal

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Rear Wheel Speed Sensor (4WD)
Rear Brake Assembly
ABS/EBD Indicators
Parking Brake Lever
Parking Brake