2013 SSANGYONG KORANDO engine

3680-01
3. TIGHTENING TORQUE
DescriptionsSize x
NumbersTightening torque
(Nm)
Automatic transaxleEngine side mounting bolt 17 mm X 4 85.0 to 100
Oil pan and engine side mounting
bolt14 mm X 4 56.0 to 62.0
Oil filler plug 16 mm 25.0 to 30.0
Oil drain plug Hexagon 5 mm 25.0 to 30.0
Valve bodyAssembly mounting screw T30 mm X 9 16.0
Oil pan bolt 10 mm X 15 7.0 to 8.0
VBS screw T30 mm 4.0
Valve body screw T30 mm X 25 16.0
Torque converter Mounting bolt 13 mm X 6 40.0 to 42.0
CableLink nut (switch side) 13 mm X 1 13.7 to 19.6
Link nut (cable side) 12 mm X 1 14.7 to 22.5
Mounting nut (floor side) 12 mm X 1 17.6 to 21.6
Mounting nut (dash panel side) 12 mm X 2 17.6 to 21.6
TGS lever Mounting nut 12 mm X 4 17.6 to 21.6
TCU Mounting nut 8 mm X 2 5.0 to 6.0
Inhibitor switch Mounting nut 12 mm X 2 3.9 to 7.8
Transaxle bracketLeft bracket 17 mm X 3 85.0 to 100
Right bracket 17 mm X 4 85.0 to 100
Upper bracket 17 mm X 4 85.0 to 100
Oil cooler pipeMounting bolt 10 mm X 2 Max.: 13.0
Bracket mounting bolt 10 mm X 1 13.0

1. OVERVIEW
Engine power reaches the transaxle 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 Model M11 6 speed automatic transaxle is electronically controlled. The control system is
comprised of the following components:
External transaxle 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 (VBS)
Torque converter -
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TCU controls the oil pressure for various internal clutches and bands to select the gear. It also controls
the electronic elements, shift pressure and torque converter slip. If the system is defective, TCU provides
FMEC (Failure Mode Effect Control) to maintain the functionality of transaxle. This keeps the basic
function of transaxle (gear selection) even when there are failure in controls and power supply.
There are selector shaft position sensor (inhibitor switch) and oil temperature sensor in transaxle. In
manual mode, TCU receives the information from TGS (Transmission Gear Selector) through PCB
(Printed Circuit Board) when driver selects the manual shift mode. TCU communicates with other
electric control modules through CAN. In order to ensure a safe driving state and to prevent damage to
the automatic transmission, TCU switches to Limp-Home mode in the event of critical faults.

3680-01
2. FEATURES
1) Advantages
Early Downshift with Hard Braking and Skip Shifts
When heavy braking is detected, the transaxle downshifts early and skips gears to provide increased
engine braking to provide gear selection for tip-in.
Gear Hold going Uphill/Downhill
If the accelerator pedal is released when traveling uphill, upshifts are prevented to reduce busyness on
grades. If the accelerator pedal is released when traveling downhill, upshifts are prevented to enhance
engine braking.
Drive and Reverse Engagement
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. Drive and
Reverse engagements from either Park or Neutral are performed in less than 2.2 seconds. There is no
drive engagement prevention strategy implemented on the transaxle system as there is sufficient engine
strategy to protect the system. However, reverse engagement is prevented until engine speed is less
than 1,400 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 transaxle features converter clutch lock-up in all gears. This feature provides improved fuel economy
and vehicle performance. It also improves transaxle cooling efficiency when towing heavy loads at low
speeds, e.g. in city driving or hill terrain.
Embedded Memory Module (EMM)
The embedded memory module (EMM) is
transaxle assembly to ensure refined shift quality.
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 utilize this data in the operation
of the transaxle.

2) Transaxle Cooling
The transaxle 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 lubrication to the transaxle
drivetrain in the event of a blockage in the transaxle cooler.
3) Shift Strategy
Gear Change
Transaxle 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.
Coast down
Coast down down shifts occur at 0% pedal
when the vehicle is coasting down to a stop.
Torque Demand
Torque demand down shifts occur
(automatically) when the driver demand for
torque is greater than the engine can provide at
that gear ratio. If applied, the transaxle will
disengage the TCC to provide added
acceleration.

1st Gear State
The 1st gear state will display on the
instrument cluster. Unlike the normal 1st gear,
engine braking will be available in this manual
1st state. -
2nd Gear State
The 2nd gear state will display on the
instrument cluster. 2-1 automatic kick-down
shifts are available. 2nd gear has engine
braking available. -
3rd Gear State
The 3rd gear state will display on the
instrument cluster. 3-2 and 3-1 automatic
kick-down shifts are available. 3rd gear has
engine braking available. -
4th Gear State
The 4th gear state will display on the
instrument cluster. 4-3 and 4-2 automatic
kick-down shifts are available. 4th gear has
engine braking available. -
5th Gear State
The 5th gear state will display on the
instrument cluster. 5-4 and 5-3 automatic
kick-down shift is available. 5th gear has
engine braking available. -
6th Gear State
The 6th gear state will display on the
instrument cluster. 6-5 and 6-4 automatic
kick-down shifts are available. 6th gear has
engine braking available. -
STD type
SVC type

5. TRANSAXLE ELECTRONIC CONTROL SYSTEM
1) General Information
The transmission control unit (TCU) and its input/output network control the following transmission
operations:
Shift timing
Line pressure
Clutch pressure (shift feel)
Torque converter clutch -
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also uses these signals when determining transaxle operating strategy. Using all of these input signals,
the TCU can determine when the time and conditions are right for a shift, or when to apply or release the
torque converter clutch. It will also determine the pressure needed to optimise shift feel. To accomplish
this, the TCU operates six variable bleed control solenoids and four on/off solenoids to control transaxle
operation.
2) TCU (Transmission Control Unit)
The transaxle control unit (TCU) is mounted
under the driver's seat and controls the operation
of the transaxle.
The TCU is activated and deactivated by the
ignition power supply and is connected to the
transaxle link harness by a 26 pin connector. The
TCU processes information received from internal
sensors and signals received across the CAN
bus in analogue and digital forms such as:
Transaxle input speed
Transaxle output speed
Accelerator pedal position
Gear selector position
Engine torque
Engine speed
Transaxle fluid temperature
Brake pedal status
Engine oil temperature
Engine coolant temperature
Ambient air temperature
Barometric pressure -
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3) Shift Map Selection
The driver can manually select between normal (S) and winter modes (W) via the mode switch.
Depending on the transaxle temperature, uphill and downhill grades and altitude, shift maps will be
selected by the TCU to suit the driving conditions. The following maps are available.
Standard (Normal) Mode
Normal Mode is selected when the lever is in the D position with the mode switch in the normal (S)
position and the transaxle is within normal temperature ranges. Shift schedule points are optimised for
fuel efficiency and general driving conditions.
Uphill and Downhill Mode
In this mode, depending on the load of the vehicle, adaptive shift maps are selected to progressively
adjust the shift points and torque converter lock points.
Altitude Mode
Shift points are automatically adjusted at higher altitudes to compensate for changes in engine torque
where the torque produced by the engine is greatly reduced by the effects of reduced barometric
pressure and temperature.
Winter (W) Mode
When winter mode is selected, starting in second gear is facilitated and the WINTER mode indicator
light is switched ON. To prevent wheel spin on slippery surfaces, the transmission will not allow first gear
unless manually overridden.
Warm up Schedule
Hot Mode
converter lock-up is increased to prevent heat generation by the torque converter.
Activation of the hot mode inhibits other transmission performance features including uphill and downhill
compensation and altitude compensation. Some degradation in shift feel may be experienced as the
torque converter is not unlocked during shifting.
Cruise Control Mode
When cruise control is activated the engine ECU may request the transaxle to downshift under trailing
throttle conditions to increase engine braking.
the electrical radiator fans are switch ON
the engine torque will be reduced and the W light on the instrument cluster will flash
protection.

3680-01
6. CAN NETWORK
The TCU sends signals to be used by other vehicle systems via the CAN bus, such as:
Selector lever position
Selected gear state
Manual mode activation
Output torque
Transaxle fluid temperature
Engine torque reduction requests -
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Schematic Diagram of Network Communication