2012 SSANGYONG NEW ACTYON SPORTS engine

04-218210-01
ABS Warning Light
This warning light comes on
when the ignition switch is
turned to "ON" position and
should go out if the system is
normal.
The vehicle with ABS performs
self-diagnosis. During this
diagnosis, brake pedal
vibration and noise may be
apparent when the driving
motors discharges the
hydraulic pressure from the
internal hydraulic device.4WD IndicatorLow Fuel Level
Warnig Light
This warning light
comes on when the
fuel will soon be
exhausted. The time
it takes turn on,
however, varies
according to the
gradient of the
vehicle.
4WD HIGH Indicator
The lamp blinks momentarily during
the change of driving mode.
4WD LOW Indicator
The lamp blinks momentarily during
the change of driving mode.
4WD CHECK Warning Light
This indicates that there is
something wrong in the transfer
case system. (check the system) -
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Auto Cruise Control
Indicator
Operating the cruise
control switch turns on
the indicator lamp to
indicate the cruise
control system is
activated.
Water Separator Warning Light
This lamp comes on to warn the driver of
water in the fuel tank which causes the
loss of engine power. When a certain
amount of water is accumulated, the lamp
comes on and a chime sounds.
Engine CHECK Warning Light
This warning light comes on when
the ignition switch is turned to "ON"
position and should go out if the
system related to engine control is
normal.
This comes on when different
sensors and devices related to
engine control are defective.
Winter Mode
Indicator
Pressing the "W" side of the
automatic transmission mode
selector switch switches the
driving mode to winter mode and
turns on the indicator lamp.
Use this mode to drive off
smoothly on icy and slippery
roads.
Charge Warning Light
This warning light comes on when the
ignition switch is turned on and go off
when the engine is started.
If this light doesn't go off after engine
starting, it means there is a malfunction in
the system.
Engine Hood Open Warning Light
When the engine hood is open, this light
comes on to inform the driver.

04-22
How to enter self-diagnosis mode ▶
Turn the ignition ON with the TRIP switch pressed.
Press and hold the TRIP switch for 5 to 10 sec. with the ignition ON.
Press and hold the TRIP switch for less than 10 sec. and then cycle the switch between ON
and OFF 5 times within 3 sec.
Confirm that the self-diagnosis mode is activated through the instrument cluster. 1.
2.
3.
4.
4. SELF-DIAGNOSIS CHECK
Self-diagnosis OFF ▶
If the engine speed increases to 396 rpm or more while the engine is cranking or the ignition key
is turned OFF in self-diagnosis mode, the self-diagnosis mode is turned OFF automatically.
Operating process ▶
Speed gauge: changes from 0 to 220 km
RPM gauge: changes from 0 to 6,000 rpm
Fuel gauge: changes from E to F
Temperature gauge: changes from C to H
Warning/Indicator lamps: All indicator/warning lamps controlled by MICOM are turned ON.
Dimming: Illuminates at the highest lighting level.
LCD display: All elements are activated. 1.
2.
3.
4.
5.
6.
7.

08-4
STICS Engine Compartment Fuse Box
STICS ▶
The rain sensing unit detects the amount of rain drops and sends the operating signal to STICS,
and STICS drives the wiper directly. At this moment, STICS determines the wiper operation mode
(washer, MIST, AUTO), then sends the information to the rain sensor.
Auto Light Sensor and Rain Sensor Coupled Control ▶
Rain detected headlamp: If it rains heavy which requires the highest INT speed (almost
LOW), the headlamps are turned on automatically. -
Night detected wiping: When the auto light control turns on the headlamps and the rain
sensor detects the rain, the wiper sensitivity is automatically increased by one level in
comparison with daytime.
(i.e. the AUTO wiper switch is at the 3rd level, but the wiper operates at the 4th level.) -Wiper relay (HI)
Wiper relay (LO)

01-33680-01
1. GENERAL INFORMATION
Six forward speeds
One reverse gear
A toruqe converter with an integral converter
lock-up clutch
Electronic shift and pressure controls
A single planetary gear-set
A double planetary gear-set
Two hydraulically controlled brake bands
Three multi-plate clutches
All hydraulic functions are directed by
electronic solenoids to control -
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- Automatic transaxle (DSI M78) ▶
TCU ▶
TCU is located under the driver's seat and controls the operations of transmission.
TCU receives the ignition voltage and has three connectors (16-pin, 12-pin, 20-pin).
TCU receives input signals from certain transmission-related sensors, gear select lever and
inhibitor switch. TCU also uses these signals when determining transmission operating strategy.
TCU uses PCAN to communicate with other units. And, TCU communicates with engine ECU,
ESP unit, TCCU and instrument cluster through CAN lines to control the gear shifting and to
recognize the current gear position.
DSI M78 Automatic Transmission is based on the transmission in the vehicle with D20DT engine
for EURO III or EURO IV or EURO V.
Differences: changed some components (torque converter and torque converter housing, some
pinion gears, sun gear), increased torsional damping force.
TCU

01-4
This indicator shows the current position of
the gear.
In normal mode: P, R, N, D
Gear indication in “M” mode: 1, 2, 3, 4, 5, 6
Driving gear can be adjusted by operating
the tip switch after moving the gear select
lever in “M” position.
Shift down Shift up
Tip switch on steering wheel ▶
Gear position display on instrument cluste▶
Gear select lever ▶
Mode Switch
W :
S :
Selection of Manual/
Automatic Shift Function
D :
M :Shift Lock Release Button Hole
when Locked in the "P" Position
If you cannot move the gear
select lever from the "P" position,
try to move the lever while
pushing down here with a sharp
object such as a ballpoint pen.
For your safety, turn off the
engine and depress the brake
pedal before the attempt. Tip Switch in “M” Position (Manual Gear Shift)
The shiftable gear can be adjusted by moving this switch to forward and rearward when the
gear select lever is in “M” position.
Positions of gear
select lever
P : Parking
R : Reverse
N : Neutral
D : Drive
Winter mode
Standard mode (Use the
standard mode in normal
driving conditions.)
Automatic shift according to
the driving condition
Manual shift

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1. OVERVIEW
The six speed automatic (M78) transmission
is available in two variants: four wheel drive
and two wheel drive.
The transmission has the following features:
Six Forward Speeds
One reverse gear
A torque converter with an integral converter lock-up clutch
Electronic shift and pressure controls
A single planetary gear-set
A double planetary gear-set
Two hydraulically controlled brake bands
Three multi-plate clutches
All hydraulic functions are directed by electronic solenoids to control: -
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Engagement feel
Shift feel
Shift scheduling
Modulated torque converter clutch applications ·
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The transmission contains fully synthetic automatic transmission fluid (ATF) and is filled for life;
therefore it does not require periodic servicing.
Engine power reaches the transmission via a torque converter with integral converter lock-up
clutch.
The six forward gears and one reverse gear are obtained from a single planetary set, followed by
a double planetary set. This type of gear-set arrangement is commonly known as Lepelletier type
gear-set.
The automatic transmission is electronically controlled. The control system is comprised of the
following elements:
External transmission control unit (TCU)
Internal embedded memory module (EMM)
Input and output speed sensors
Valve body unit comprised of four on/off solenoid valves and six variable bleed solenoids
Torque converter -
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2. FEATURES
Early Downshifts with Hard Braking and Skip Shifts ▶
When heavy braking is detected, the transmission downshifts early and skips gears to provide
increased engine braking to provide gear selection for tip-in.
Gear Hold on Uphill/Downhill ▶
If the accelerator pedal is released when travelling uphill, upshifts are prevented to reduce
busyness on grades. If the accelerator pedal is released when travelling downhill, upshifts are
prevented to enhance engine braking.
Soft Engagement when Shifting to “D” and “R” Position ▶
A soft engagement feature avoids harsh take up of drive when selecting Drive or Reverse. This is
achieved by limiting engine speed and engine torque which results in a rapid, but progressive
engagement of either Drive or Reverse when moving from the Park or Neutral positions. There is
no drive engagement prevention strategy implemented on the transmission system as there is
sufficient engine strategy to protect the system. However, reverse gear engagement is prevented
until engine speed is less than 1400 rpm and the accelerator pedal position is less than 12% and
vehicle speed is less than 10 km/h.
Converter Clutch Lock-Up In All Gears ▶
The transmission features converter clutch lock-up in all gears. This feature provides improved
fuel economy and vehicle performance. It also improves transmission cooling efficiency when
towing heavy loads at low speeds, e.g. in city driving or hill terrain.
Embeded Memory Module (EMM) ▶
The embedded memory module (EMM) is
matched to the transmission's valve bodies
during transmission assembly to ensure
refined shift quality. The EMM is integrated
into the input speed sensor which is mounted
on the valve body in the transmission. The
EMM is used to store data such as valve body
calibration data and valve body serial number.
Upon installation, the TCU will download the
data from the EMM and utilise this data in the
operation of the transmission.
1) Features

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2) Cooling System
The transmission cooling system ensures rapid warm-up and constant operating temperature
resulting in reduced fuel consumption and refined shift quality.
It also includes a cooler by-pass within the hydraulic system to allow sufficient cooling and
lubrication to the transmission drivetrain in the event of a blockage in the transmission cooler.
Gear Shift ▶
Coastdown ▶
Torque Demand ▶ Transmission gear change is controlled by the TCU. The TCU receives inputs from various engine
and vehicle sensors to select shift schedules and to control the shift feel and torque converter
clutch (TCC) operation at each gear change
Coastdown downshifts occur at 0% accelerator pedal when the vehicle is coasting down to a
stop. To reduce the shift shock and to improve the shift feeling during downshift, TCU
electronically controls the transmission.
Torque demand downshifts occur (automatically) when the driver demand for torque is greater
than the engine can provide at that gear ratio. If applied, the transmission will disengage the TCC
to provide added acceleration.
3) Shift Strategy