4WD SSANGYONG RODIUS 2005 Service Manual

0-21
CIRCUIT
RODIUS 2005.07
8010-01
8010-01
CLUSTER
1) GAUGE(SPEED, RPM, FUEL, TEMP, WARNING LAMP(4WD, FUEL FILTER, ABS/ESP)
(2) CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION
(1) CONNECTOR INFORMATION

0-3
DC 5-SPEED AUTOMATIC TRANSMISSION
RODIUS 2005.07
3650-01
2WD 4WD
3650-01DC 5-SPEED AUTOMATIC TRANSMISSION
1. OVERVIEW
DCAG 5-speed automatic transmission is an electronically controlled 5-speed transmission with
a lockup clutch in the torque converter.
The ratios for the gears are realized by three planetary gear sets. The 5th gear is designed with
a step-up ratio of 0.83 as an overdrive. The selector lever is controlled by electronically and
mechanically.
The gears are shifted by the corresponding combination of three hydraulically actuated
multiple-disc brakes, three hydraulically actuated multiple-disc clutches and two mechanical
one-way clutches.
This electronically controlled automatic transmission adjusts the operating pressure to provide
proper shifting in relation to engine power. This function improves shifting quality significantly.
And, the driver can select “S” (Standard) mode or “W” (Winter) mode according to the
driving conditions.
This automatic transmission provides two gears even during reverse driving.
The internal sensors and controls are connected to TCU by cylindrical 13-pin connector.
DCAG 5-speed automatic transmission offers the following advantages ▶
Improved shifting quality
More gears
Extended working life and reliability
Reduced fuel consumption -
-
-
-

0-4
RODIUS 2005.07
3410-01
TRANSFER CASE
1. PART TIME TRANSFER CASE OVERVIEW
By using the planetary gear sets, two-gears shift type part time transfer case achieves direct
connection when selecting 4WD “HIGH” and 2.48 of reduction gear ratio when selecting
4WD “LOW”.
The silent chain in transfer case transfers the output power to front wheels.
Simple operation of switches on instrument panel allows to shift to “2H”, “4H” and “4L”
easily while driving.
The warning lamp alarms the driver when the system is defective.

0-12
RODIUS 2005.07
3410-01
TRANSFER CASE
Power Flow ▶
2) 4H Mode (4Wd Drive - High Speed)

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TRANSFER CASE
RODIUS 2005.07
3410-01
Power Flow ▶
3) 4L Mode (4Wd Drive - Low Speed)

0-16
RODIUS 2005.07
3410-01
TRANSFER CASE
8. SYSTEM OPERATION
1) Transfer Case Control Unit (Tccu)
(1) 4WD Operation
TCCU is located under the front left seat and
permits the vehicle to shift from two-wheel
drive to four-wheel drive (and back shift)
according to drivers switch operation during
driving (For the shifting between 4WD HIGH
and 4WD LOW, stop the vehicle).
2H → 4H ▶
Change the 4WD switch in instrument panel from 2H to 4H.
This shift is available during driving.
“4WD HIGH” indicator in meter cluster comes on. -
-
-
When the system is defective
“4WD CHECK” warning lamp comes
on -
Change the 4WD switch in instrument panel from 4H to 2H.
This shift is available during driving.
“4WD HIGH” indicator in meter cluster goes out.
“4WD CHECK” warning lamp comes on when the system is defective. -
-
-
- 4H → 2H ▶

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TRANSFER CASE
RODIUS 2005.07
0000-00
This function is only available when the speed signal from speed sensor is about to stop
(below 2 km/h).
This function is only available when clutch pedal is depressed (manual transmission) o
r
selector lever is selected to “N” position (automatic transmission).
(TCCU must recognize the clutch pedal signal or “N” signal.)
Change the 4WD switch in instrument panel from 4H to 4L.
“4WD LOW” warning lamp in meter cluster blinks during this process, then remains
when the shift is completed.
“4WD CHECK” warning lamp comes on when the system is defective. -
-
-
-
- 4H → 4L ▶

0-4
RODIUS 2005.07
3170-01
MANUAL TRANSMISSION
1. MANUAL TRANSMISSION OVERVIEW
4WD
2WD
TSM54/52 transmission is designed to link the gear ratio, installation dimensions and shapes
with current T5 transmission and BTRA automatic transmission. It provides maximum
drivability by the optimized engine torque and gear ratio.
TSM54/52 transmission uses linkage type shift elements directly connected to the
transmission. It prevent the transmission from shifting to the reverse gear from 5th gea
r
when shifting to reverse gear. It also prevents the break and wear. 1.
2.

0-5
TORQUE ON DEMAND
RODIUS 2005.07
3240-01
2. GENERAL DESCRIPTION
TOD system means the full time 4WD system and the registered trade mark of Borg Warner.
TOD is an abbreviation of Torque On Demand.
TOD (Torque On Demand) system, which is superior than existing Full Time 4WD, checks the
road surface and vehicle conditions via various sensors and, subsequently, according to the
situations and conditions, distributes the most optimal driving force to front wheels and rea
r
wheels by activating the electro-magnetic clutch located inside of TOD Transfer Case.
TOD receives the speed signals from speed sensors installed in front axle and rear axle, the
TPS signals from engine, and the operating signals from ABS control unit via CAN.
Based on these data, TOD control unit controls the electro-magnetic clutch to distribute the
3:97 ~ 44:56 of driving force to front wheels and rear wheels.
The conventional system uses “FR driving” (theoretically, the 100 % of driving force is
transferred to rear wheels) on normal paved road.
When the system detects a slip in the rear wheels, a proper percentage of driving force is
transferred to front wheels.
TOD control unit receives the wheel speed signals from the speed sensors in propeller shaft o
f
transfer case and engine output information from the engine control unit.
TOD control unit changes the pressure force of the electromagnetic clutch based on the
analyzed data.
1) Distribution of Driving Force According to Road Surface
On normal road surface ▶
In vehicle with existing part time transfer case, when a driver turns the steering wheel to park in
the 4WD mode, the vehicle may halt sensation of tight corner braking phenomena. However, in
vehicle with TOD system, this phenomena does not occur and the driving force is properly and
automatically distributed.
On paved road with high speed ▶
Driving at high speed on roads such as highway mainly uses rear wheels as driving wheel.
At this moment, some of torques is also distributed to front wheels so that the vehicle could
maintain safe ground grab capacity against side winds and rain.
Distribution ratio: 15 % for front wheels and 85% for rear wheels.

0-6
RODIUS 2005.07
3240-01
TORQUE ON DEMAND
When turning on the road with low friction rate ▶
During cornering on roads such as unpaved, snowy, icy and muddy, ground grab capacity is
increased by distributing required torque and, at the same time, comfortable steering operation
is maintained by controlling the ground grab capacity at high level.
Distribution ratio: 30 % for front wheels and 70 % for rear wheels.
When climbing or starting off on the road with low friction rate ▶
In order to secure the maximum ground grab capacity and driving force during climbing o
r
starting off on the roads such as unpaved, snowy and icy road, the system controls the driving
force to distribute properly in full 4WD mode.
Distribution ratio: 44 % for front wheels and 56 % for rear wheels.