SsangYong Korando III (2010 year). Service manual — part 517

01-6

HECU (Hydraulic & Electronic Control Unit)

HECU for ABS

HECU for EPS

The HECU (Hydraulic & Electronic Control Unit) determines the slip conditions of vehicle wheels by
calculating each wheel's speed and the increment/decrement of speed based on the information
detected by the sensors, and controls the pumping and boosting/reducing/keeping pressure by
operating the valve and motor of HECU.

2. MOUNTING LOCATIONS (CHASSIS)

Moto

HU (Hydraulic Unit)

ECU (Electronic

Control Unit)

Moto

HU

(Hydraulic Unit)

ECU (Electronic

Control Unit)

Motor

angle (8P)

Motor power (3P)

Torque angle

sensor (8P)

Battery (2P)

Connector to

vehicle (8P)

Fuse for EPS

Steering wheel angle sensor (SWAS)

The steering wheel angle sensor is mounted between the
steering column and the steering column shaft. It is
commonly used by the ESP (Electronic Stability Program)
system. And it receives signals of the steering wheel angle
sensor from the ESP HECU (Hydraulic & Electronic
Control Unit).

EPS unit

The ECU controls the electric power steering
system depending on the driving conditions,
based on the signals from the torque and
angle sensor.

E-coupling unit

The E-coupling unit is a control unit
which determines the magnetic force by
considering CAN signals (wheel speed,
engine torque, pedal opening, ABS/ESP
CAN signals, etc.) from other ECUs.

01-7

0000-00

TPMS ECU

The TPMS ECU is located to the rear bumper rail
under the vehicle. It outputs the tire pressure and
each wheel’s condition to the instrument
cluster, based on the wheel module information
and CAN data.

G-sensor(4WD, ABS)

For the vehicle with the ABS, a speed difference
between the wheels is not noticeable as all the wheels
are slipping during abrupt braking. Therefore, the
vehicle needs the speed information from other sensors
other than the wheel speed sensor. The longitudinal
acceleration sensor (G-sensor) is used for this case. It
controls the ABS by using the signals from the sensor
during abrupt braking and acceleration.

TCU unit

The transmission control unit (TCU) is installed
under the driver seat, and controls the
transmission. The TCU is operated by the ignition
power supply and receives and processes the
following information from the inner sensors
through CAN buses.

TGS Lever assembly

The TGS communicates with TCU
(Transmission Control Unit), ECU,
ESP HECU and instrument cluster
to let the driver select the desired
transmission gear and to maintain
the desired driving condition. Also,
the tip switch is installed on the
lever knob and the steering wheel
so that the driver select the gear
manually when the shift lever is in
"M".

Sensor cluster

The sensor cluster is linked to
the sensors on the unit board
and CAN interface. And they
are housed in one case and
mounted to the body.

01-8

A/T assembly

Automatic transmission is available as 4WD- and 2WD-type,
and provides 6 speeds for forward travel and 1 reverse
travel. It is also equipped with the torque converter with inner
lock-up clutch and electronically controlled solenoid which
controls all hydraulic functions.

3. CHASSIS COMPONENT LAYOUT

PTU (Power Transfer Unit)

The PTU is a device that transfers the power
generated from the engine to the rear axle through
propeller shaft and E-coupling by changing the power
flow direction by 90° in the front wheel drive type
4WD vehicle.

Rear axle assembly

The rear axle installed in this car is a removable
axle, called IRDA (Independent Rear Differential
Axle). The rear differential carrier is installed
directly on the sub frame, and there is an
independent suspension that allows each wheel
on the same axle to move vertically independently
of each other with the universal joint and the slip
joint.

E-coupling control unit (E-Coupling ECU)

The E-coupling unit is a control unit which determines
the magnetic force by considering CAN signals (wheel
speed, engine torque, pedal opening, ABS/ESP CAN
signals, etc.) from other ECUs.

Inhibitor switch

Torque converter

Oil pan

E-coupling side

Rear axle side

Propeller shaft

1) 4WD Vehicle With Automatic Transmission

GSL

DSL

Inhibitor switch

Torque converter

Oil pan

01-9

0000-00

M6LF1 manual transmission

M6LF1 manual transmission is a model modified from the
one that used in other vehicle so that it can be applied to FF
(Front engine-Front wheel driving) type vehicle, and has an
axle in one piece. The engine torque and gear ratio of this
transmission have been optimized to maximize driving
performance. It provides 6 speeds for forward travel and 1
reverse travel.

Clutch assembly

M6LF1 manual transmission is a model modified from the
one that used in other vehicle so that it can be applied to FF
(Front engine-Front wheel driving) type vehicle, and has an
axle in one piece. The engine torque and gear ratio of this
transmission have been optimized to maximize driving
performance. It provides 6 speeds for forward travel and 1
reverse travel.

The 2WD vehicle with manual transmission is a front wheel drive type vehicle that doesn't have PTU,
propeller shaft, E-coupling and rear axle which are applied to 4WD vehicle. Its under structure is very
simple.

Manual gear selector lever

Transmission side

Control shaft assembly

Transaxle side

Concentric slave assembly

Pressure plate

2) 2WD Vehicle With Manual Transmission

Clutch disc