2012 SSANGYONG NEW ACTYON SPORTS engine

01-14
3. MODE DESCRIPTIONS
1) Functions
Tip Switch in “M” Position (Manual Gear
Shift) (5)
The shiftable gear can be adjusted by
moving this switch to forward and
rearward when the gear select lever is in
“M” position. 5.Shift Lock Release Button Hole when Locked in the "P" Position (1)
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. 1.
Gear Position (4)
P :
R :
N :
D : 4.Mode Switch (3)
W :
S : 3.Selection of Manual/Automatic Shift Function (M↔D) (2)
D :
M : 2.
Automatic shift according to the driving condition
Manual shift
Winter mode (Start off the vehicle in 2nd gear)
Standard mode (Use the standard mode in normal driving conditions.)
Park
Reverse
Neutral
Drive

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2) Mode “M” (Manual Shift Mode)
This allows the driver to define the highest possible gear by selecting "+" or "-" on the gear
selector when the lever is in the "M" position. When the lever is first moved to the manual "M"
position the transmission will select the lowest possible gear.
When maximum engine rpm is reached the transmission will upshift automatically regardless of
the driver selected limit. 4WD models with low range will not automatically upshift when low range
is selected.
1st gear position ▶
2nd gear position ▶
3st gear position ▶
4th gear position ▶
5th gear position ▶
6th gear position ▶Use on a rugged road, mountain path and steep hill. Engine braking effect on steep hill is
available. -
Use on a long and gentle slope. 2-1 automatic kickdown shift is available. Engine braking
effect is available. -
Use on a long and gentle slope. 3-2 and 2-1 automatic kickdown shift is available.
Engine braking effect is available. -
Use on a long and gentle slope. 4-3, 4-2 and 4-1 automatic kickdown shift is available. -
5-4 and 5-3 automatic kickdown shift is available. -
6-5 and 6-4 automatic kickdown shift is available. -
Kickdown Function
If you need to accelerate rapidly, depress the accelerator pedal completely to the floor.
Then, a one- or two-lever gear will automatically be engaged. This is called the Kickdown
function.

01-16
4. LIMP HOME MODE
In case of transmission malfunction ▶
If a serious fault occurs in the automatic transmission, the TCU enters the limp home
mode to secure safe driving and protect the automatic transmission.
As power is no longer supplied to the solenoid, the current basic function (P, R, N, D) is
maintained and the 4th gear can be maintained only by the operation of the hydraulic
system without electrical operation.
The ECU communicates with other electric modules with CAN. If a serious fault occurs, the
transmission automatically enters the limp home mode for service.
The TCU monitors all factors which can affect to the performance of the transmission and
diagnose the system according to OBD II regulation. 1.
2.
3.
4.
In case of overheated transmission ▶
The TCU enters the limp home mode when the batter voltage drops below 8 V.
If the transmission is overheated, the shift pattern is changed to the hot mode to cool the
transmission more efficiently.
While the transmission is overheated, the selector lever symbol and engine temperature
warning lamp on the instrument cluster blink until the transmission is cooled down to the
normal operation temperature. If the transmission is excessively overheated, the gear
cannot be shifted but remains in the neutral position. 1.
2.
3.
Towing the vehicle with A/T ▶
The best way to transport the vehicle is to load it to a truck and transport it, especially if the
vehicle is 4WD.
If towing the vehicle with the propeller shaft connected, the transmission or oil pump of
transfer case may malfunction, resulting in internal damage due to poor lubrication. -

01-18
(2) CAN Input/Output
TCU receives and sends the data among the units through P-CAN communication.
CAN Input/Output Data between Engine ECU and TCU ▶

01-20
3) Transmission Control Monitoring System
TCU monitors all input and output signals to identify possible failures. If a fault is detected, TCU
<0088008a009b0090009d0088009b008c009a0047009b008f008c0047009a0088008d008c009b00a0004700940096008b008c0047009b009600470092008c008c00970047009b008f008c0047008b00990090009d008c009902c5009a0047009a0088008d00
8c009b00a0004700880095008b0047009b008f008c00470093>ife span of transmission.
Monitoring the Supply Voltage ▶
Monitoring the Supply Voltage to Solenoid ▶
Monitoring the Gear Ratio ▶
Monitoring the Torque Converter ▶ If the battery voltage is too high or too low, the TCU sets the DTC.
TCU monitors the circuits for open or short to ground or supply. The monitoring function
evaluates the voltage characteristics while the switch is ON.
TCU monitors the gear is engaged properly in the allowed time.
TCU checks if the torque converter can be locked up properly. If it is failed, TCU releases the
torque converter clutch to activate the fail-safe operation.
4) Shift Energy Management
This function involves reducing or increasing the engine output torque during shifting. This
reduces the energy which is dissipated in the friction elements of the transmission during up-
shift. This is done by reducing the engine torque during the gear ratio change without interrupting
the tractive drive.
This function is used for:
Increasing the life span of transmission by shortening the slipping time
Improving the shift comfort by reducing the step changes due to gearshift
Transferring a higher engine power -
-
-
Real-time control of engine torque is required to maintain the proper shift operations and the
durability of transmission. TCU controls the engine torque during the gearshift by synchronizing
the operation of transmission clutches.

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Pressure Modulation ▶
To provide a higher level of shift comfort and durability, the hydraulic pressure in the shift related
friction elements of the transmission must be matched accurately to the input torque to
transmission. This hydraulic pressure is composed of a hydraulically pre-set basic pressure and a
control pressure which is set by one of the variable bleed solenoids.
The transmission input torque can be directly calculated from the following operating parameters:
engine torque signals
engine speed or any signal transmitted from ECU through CAN lines
converter slip -
-
-
Separate pressure characteristics for each gear change make it possible to adapt precisely to the
particular shift operation.
5) Shift Mode Selection by TCU
The driver can select Standard (S) or Winter mode (W) with the mode switch. TCU automatically
changes the shift mode according to the transmission oil temperature, uphill or downhill gradient,
and altitude to keep the good driving conditions.
Standard Mode (S) ▶
Uphii and Downhill Mode ▶
Altitude Mode ▶ Standard Mode is selected when setting the mode switch in Standard (S) position with the gear
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990088009b009c0099008c0047009000950047009500960099>mal operating range. Proper shift
timing provides the optimized fuel economy and good driving conditions.
In this mode, the operating points of torque converter lock-up clutch and the shifting points are
adjusted according to the vehicle weight.
In this mode, the shifting points are automatically adjusted according to the altitude to compensate
the engine torque changes due to barometric pressure and temperature.

01-22
Winter Mode (W) ▶
Low Range Driving Mode ▶
Warm Up Mode ▶ When the Winter mode is selected, the second gear is engaged to start off the vehicle easily to
prevent wheel spin on slippery surfaces and WINTER mode indicator comes ON. The first gear is
not available in this mode.
When the vehicle is in 4L driving mode, the transmission uses a different shift mode to optimize
the low range driving. Similar to Winter mode, the first gear is not available.
This mode is normally used when the transmission oil temperature is below 20°C.
<007b008f008c0047009b009600990098009c008c0047008a00960095009d008c0099009b008c00990047008a0088009500950096009b00470089008c004700930096008a0092008c008b0054009c009700470089008c00930096009e00470059005700b600
6a0047009b00960047009700990096009d0090008b008c0047>the warming up process of
transmission.
Hot Mode ▶
<0070008d0047009b008f008c0047009b009900880095009a00940090009a009a00900096009500470096009000930047009b008c00940097008c00990088009b009c0099008c00470090009a00470089008c009b009e008c008c0095004700580058005700
b6006a004700880095008b00470058005b005c00b6006a0053> the system provides the cooling
and reduces the load to the transmission. This is called Hot Mode.
Above 110°C:
Above 130°C:
Above 145°C: -
-
-
In Hot Mode, any of shift mode is not available.
Cruise Control ▶
When the cruise control is activated, the engine ECU requests the downshift to increase the
engine brake effect.PWM fan ON
the engine torque is reduced and WINTER indicator is blinking
the transmission is held in Neutral (N) gear until the oil temperature falls
below 120°C (Final protection)

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1) Power Flow - Manual (M Position)
Functioning elements ▶
Control ▶C2 applied, FSG (Forward Sun Gear)
driven
B2 applied to hold Rear Planet Carrier
stationary
Provides engine breake effect -
-
-
S1 ON, C1 shift valve moved to the left end, C1 clutch not engaged
S1 ON, B2 shift valve moved to the left end, B2 band operated (S7 should be ON)
C2 shift valve open (S2 OFF), C2 clutch engaged by drive oil
Drive oil (for C2 clutch engagement) is regulated by VBS S6 -
-
-
-
Connecting Components ▶
Gear
ratioON / OFF solenoids Variable pressure sol. valve-VBS
S1 S2 S3 S4 S5(A) S6(A) S7(A) S8(A) S9(A) S10(A)
3.53 ON 1 0 1 0-1
Gear
ratioEngaged element
C1 C2 C3 B1 B2 OWC Lock-up
clutch
AO AI R AO AI
3.53 ON ON ON
Power Flow Diagram ▶
Manual 1st gear is not engaged even when
moving the manual valve to a certain position.
This gear state is obtained electronically by
solenoids S1 and S7.