transfer case SSANGYONG KORANDO 1997 Service User Guide

5A-158 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
8. Remove the transfer case-to-transmission housing
bolts and remove the transfer case.
Installation Notice
10. Separate the locking clip on shift lever and remove
the shift rod.
Notice: Removal and installation performed when
the shift procedure should be lever is in ’D’ range.
11. Remove the oil cooler pipes.
Installation Notice 9. Disconnect the 10-Pins Plug connector from trans-
mission.
7. Remove the front propeller shaft bolts from transfer
case.
Installation Notice
KAA5A5V0
KAA5A2K0
KAA5A2L0
KAA5A2M0
Tightening Torque70 - 80 Nm
(52 - 59 lb-ft)
Tightening Torque35 - 60 Nm
(28 - 44 lb-ft)
Tightening Torque40 - 45 Nm
(29 - 33 lb-ft)

AUTOMATIC TRANSMISSION 5A-205
SSANGYONG MY2002
FASTENER TIGHTENING SPECIFICATIONS
N•m
35 - 40
16 - 22
20 - 27
20 - 22
54 - 68
70 - 80
4 - 6
40 - 45
4 - 6
8 - 12
35
13 - 16
13 - 16
24 - 34
24 - 27
70 - 80
30 - 35
54 - 68
42
35 - 60
30 - 35
11 - 16
8 - 13
8 - 12Lb-Ft
26 - 30
12 - 16
15 - 20
15 - 16
40 - 50
52 - 59
-
29 - 33
-
-
26
10 - 12
10 - 12
18 - 25
18 - 20
52 - 59
22 - 26
40 - 50
31
26 - 44
22 - 26
8 - 12
-
- Application
Adaptor Housing to Case Bolts
Cam Plate to Case (Parking Pawl) Screws
Centre Support to Case Bolts
Detent Spring Screw
Extension Housing to Case Bolts
Front Propeller Shaft Bolts
Inhibitor Switch to Case Bolts
Oil Cooler Pipes
Oil Pan to Case Bolts
On/Off Solenoid Retainer Screws
Output Flange Nuts
Pump Cover Plate to Crescent Screw
Pump Cover Plate to Pump Cover Screws
Pump Cover to Case Bolts
Pump to Pump Cover Bolts
Rear Propeller Shaft Bolts
Rear Servo Cover to Case Bolts
Torque Converter Housing to Case Bolts
Torque Converter Mounting Bolts
Transfer Case to Transmission Housing Bolts
Transmission Filler Plug
Upper Valve Body to Lower Valve Body Screws
Valve Body To Case Bolts
Variable Pressure Solenoid (S5) Retainer ScrewLb-Ft
-
-
-
-
-
-
35 - 53
-
35 - 53
71 - 106
-
-
-
-
-
-
-
-
-
-
-
-
71 - 115
71 - 106

SSANGYONG MY2002
5B-10 MANUAL TRANSMISSION
TRANSMISSION ASSEMBLY
YAD5B270
1 Clutch Housing
2 Oil Filler Plug.......................................... 25 N•m
3 Transmission Assembly
4 Back-up Switch
5 Washer
6 Bolt..................................................... 77-87 Nm
7 Oil Drain Plug.......................................... 25 Nm
8 Bolt..................................................... 81-89 Nm
9 Washer
10 Front Propeller Shaft
11 Transfer Case Assembly12 Speedometer Cable
13 Rear Propeller Shaft
14 Washer
15 Bolt..................................................... 70-80 Nm
16 Cross Member
17 Washer
18 Bolt..................................................... 21-35 Nm
19 Washer
20 Bolt..................................................... 62-93 Nm
21 Breather Hose

SSANGYONG MY2002
5B-20 MANUAL TRANSMISSION
7. Remove the front and rear propeller shafts from
the transfercase.
8. Support the transmission on an suitable jack.
Unscrew the center mounting nuts and each sides
mounting bolts and remove the cross member.
9. Remove the transmission mounting bolts.
Notice: For removing the transmission, there may
be any damage in the clutch housing inside CSC.
Thus remove the transmission with the clutch
housing.
10. Move the transmission jack backward careful and
disengage the transmission input shaft from the
engine.
Remove the transmission.
YAD5B320
YAD5B330
YAD5B340
YAD5B020

SECTION 5D1
TRANSFER CASE (TOD)
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless
other-wise noted.
TABLE OF CONTENTS
Description and Operation.................................5D1-2
Torque on Demand (TOD) System
Transfer Case.................................................5D1-2
Transfer Case Control Unit (TCCU).....................5D1-2
TCCU Coding....................................................5D1-2
Pin Description..................................................5D1-3
Components of the TOD Transfer Case System ..5D1-4
Definition of Terminology....................................5D1-4
Operation of the TOD Transfer Case System......5D1-4
Component Locator...........................................5D1-7
Torque on Demand (TOD) Type Transfer Case....5D1-7
Transfer Case Disassembled View.....................5D1-8
TOD Control Unit..............................................5D1-10
Diagnosis..........................................................5D1-11
Self-Diagnostic Tests.......................................5D1-11
Diagnostic Trouble Codes (DTCs)....................5D1-12
Clearing Diagnostic Trouble Codes..................5D1-12
4WD Check Indicator Stays on with Ignition
Switch ON....................................................5D1-14
4WD Low Indicator Stays on with Ignition
Switch ON....................................................5D1-16
No 4WD Check or 4WD Low Indicator with
Ignition Switch ON........................................5D1-18
4WD Low Indicator Blink Steadily.....................5D1-20
TCCU Diagnostic System Check......................5D1-21
DTC 1714 Eeprom Checksum Fault..................5D1-22
DTC 1715 Tp Sensor Loss of Signal.................5D1-24
DTC 1716 Tp Sensor Out of Range...................5D1-26
DTC 1721 Electromagnetic Clutch Open / Short
to Battery.....................................................5D1-28
DTC 1722 Electromagnetic Clutch Short to
Ground.........................................................5D1-32
DTC 1731 Front Speed Sensor Voltage Low......5D1-36
DTC 1732 Front Speed Sensor Voltage High.....5D1-38DTC 1733 Rear Speed Sensor Voltage Low......5D1-40
DTC 1734 Rear Speed Sensor Voltage High.....5D1-42
DTC 1735 Speed Sensor Reference Voltage
Low ..............................................................5D1-44
DTC 1736 Speed Sensor Reference Voltage
High.............................................................5D1-46
DTC 1741 Motor Output Open / Shorted
to Battery.....................................................5D1-48
DTC 1742 Motor Output Shorted to Ground......5D1-52
DTC 1743 Shift System Timeout.......................5D1-55
DTC 1750 General Position Encoder Fault
(Invalid Code)...............................................5D1-56
DTC 1751 Position 1 Shorted to Ground............5D1-58
DTC 1752 Position 2 Shorted to Ground............5D1-60
DTC 1753 Position 3 Shorted to Ground............5D1-62
DTC 1754 Position 4 Shorted to Ground............5D1-64
Repair Instructions............................................5D1-66
On-Vehicle Service.............................................5D1-66
Oil Replacement..............................................5D1-66
Transfer Case Control Unit (TCCU)...................5D1-67
Transfer Case..................................................5D1-67
Shift Motor.......................................................5D1-69
Front and Rear Propeller Shaft Speed Sensor ...5D1-70
Unit Repair........................................................5D1-71
Transfer Case Overhaul...................................5D1-71
Specifications...................................................5D1-79
General Specification.......................................5D1-79
TCCU Electric Characteristics..........................5D1-79
Fastener Tightening Specifications...................5D1-79
Schematic and Routing Diagram....................5D1-80
TOD Transfer Case Control Unit (TCCU)............5D1-80
Special Tools and Equipment..........................5D1-82
Special Tool Table ...........................................5D1-82

TRANSFER CASE 5D1-3
SSANGYONG MY2002
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18Shift motor output (- High to low: Battery voltage/ - Low to high or motor brake : Ground)
Shift motor output (- Low to high: Battery voltage/ - High to Low or motor brake : Ground)
TOD output: Electromagnetic clutch control
B (+) : Fuse F17
Ignition Voltage: Fuse F23
Shift motor output (- High to low: Battery voltage/ - Low to high or motor brake : Ground)
Shift motor output (- Low to high: Battery voltage/ - High to Low or motor brake : Ground)
Reference voltage (5V) supply to Throttle Position (TP) sensor and speed sensor
Ground
Ground
B (+) : Fuse F17
Diagnosis (K-line)
Position encoder ground
Illuminate 4WD CHECK lamp
Not in used
Mode (4H/4L) input
Position encoder 2 input
Front propeller shaft speed sensor input
Not in used
Speed sensor ground. Throttle position (TP) sensor return
Illuminate 4WD LOW indicator
CAN bus high line
CAN bus low line
Neutral position sensor signal input (A/T only)
ABS operation signal (ON/OFF)
Brake switch signal input
Position encoder 1 input
Position encoder 3 input
Rear propeller shaft speed sensor signal input
Position encoder 4 input
PIN DESCRIPTION
Pin No.Description

SSANGYONG MY2002
5D1-4 TRANSFER CASE
COMPONENTS OF THE TOD
TRANSFER CASE SYSTEM
Shift Motor
It locates backside transfer case, which drives rotary
helical cam. When mode select switch changes to 4L,
shift fork is on position for 2.48 : 1 by rotation of helical
cam.
Rear Speed Sensor
A hall effect speed sensor which produces a square
wave. 0 to 5 volts direct current signal in response to
a rotating 30-tooth wheel coupled to the rear propeller
shaft inside the transfer case. Each rotation of the rear
propeller shaft will result in 30 speed sensor pulse.
Front Speed Sensor
A hall effect speed sensor which produces a square
wave. 0 to 5 volts direct current signal in response to
a rotating 30-tooth wheel coupled to the front propeller
shaft inside the transfer case. Each rotation of the front
propeller shaft will result in 30 speed sensor pulse.
Electro-Magnetic Clutch
An electromagnetic clutch used to control the amount
of torque applied to the front propeller shaft.
Position Encoder
A set of 4 gray code switches which provide feedback
to the TCCU indicating the position of the shift motor.
Clutch Pedal Position Switch
A switch on vehicles equipped with a manual transmis-
sion which indicates that the clutch pedal is depressed
Park/Neutral Position Switch
A switch on vehicles equipped with an automatic trans-
mission which indicates that the transmission is in neu-
tral.
4H/4L Switch
A switch selects the desired gear ratio.
DEFINITION OF TERMINOLOGY
Shift Inhibit Speed
The vehicle speed limit, which transfer case shifts, is
disallowed. Vehicle speed is indicated by propeller
shaft speed measurement.
Duty Cycle
Duty cycle is the time the electromagnetic clutch is on
divided by the period in which it is being modulated.
Touch-off
A minimum amount of duty cycle applied to the electro
magnetic clutch.
Front Overrun
A condition where the front propeller shaft is turning at
a rate which is faster than the rear propeller shaft.
Rear Overrun
A condition where the rear propeller shaft is turning at
a rate which is faster than the front propeller shaft.
High Range
The highest (numerically lowest = 1 : 1) gear ratio be-
tween the input and outputs of the transfer case.
Low Range
The lowest (numerically highest = 2.48 : 1) gear ratio
between the input and outputs of the transfer case.
OPERATION OF THE TOD
TRANSFER CASE SYSTEM
Initial Operation of TOD Control Unit
When ignition switch is turned to ON, 4WD LOW and
4WD CHECK lamp illuminates for 0.6 second to check
bulb in instrument panel, then perform diagnosis of
system. Refer to “Self-Diagnosis Test” in this section.
Electric Shift System Operation
The electric shift system is responsible for changing
the transfer case gear ratio by controlling the electric
shift motor. The TCCU monitors the 4H/4L switch, park/
neutral position switch, speed sensors, position
encoder, and ignition switch.
A range change is initiated when:
The 4H/4L switch is changed from 4H to 4L or from
4L to 4H.
The motor position (as indicated by the position
encoder) does not match the 4H/4L switch
immediately after the ignition is turned on.
Shift Criteria
When a range change is initiated a diagnostic test will
be completed on the motor, speed sensors, and
position encoder. If the diagnostic test fails, the shift
will not be attempted. If all components are operating
properly, the TCCU will attempt a range change after
the following shift criteria are met:
The transmission is in neutral for 2 seconds after
the shift is requested.
Both propeller shaft speeds are below 87 rpm (2580
pulses/minute). If the transmission is taken out of
neutral before 2 seconds has passed, or either
propeller shaft speed increases above the limit, the
shift will be suspended and the 4L indicator will
continue to blink until the criteria are met again or
the 4H/4L switch is returned to the original position.
Range Change
When the shift criteria are met, the motor is rotated in
the appropriate direction (as determined by the selector
switch) until one of the following occurs:

TRANSFER CASE 5D1-5
SSANGYONG MY2002
The motor reaches its destination.
The motor is on for 5 seconds without reaching its
destination. The shift has failed and the TCCU will
respond as default mode.
A fault occurs with either the motor or position
encoder. Refer to the diagnosis requirement.
When the motor is energized, the Ignition, 4H/4L
switch, propeller shaft speeds, and transmission
neutral inputs are ignored.
Indicator Function
Once a range change has been initiated the 4WD LOW
indicator will begin to blink at a rate of 0.3 seconds
on, 0.3 seconds off until the shift is completed or
canceled. If a successful shift has been completed,
the 4WD LOW indicator will be illuminated if the motor
is in low range and it will be turned off if the motor is in
high range.
4WD LOW indicator illuminates as below figure.
KAA5D000
TODTM System Operation
The TODTM System is responsible for distributing torque
between the front and rear axles. The TCCU monitors
the propeller shaft speeds, operating range (high/low),
and ABS activity and then applies a calculated amount
of torque to the front axle by pulse width modulating
(PWM) the current applied to the electromagnetic clutch
(EMC).
Touch-off Torque
The minimum EMC duty cycle is based on the vehicle
speed and throttle position. The TCCU receives the
throttle position (TP) sensor signal from the engine con
trol module (ECM) through CAN bus line.
Wheel Slip Detection and Control
The TCCU continuously monitors the front and rear pro-
peller shaft speeds to detect wheel slip.
When wheel slip is detected the TCCU controls the
EMC duty cycles as necessary until the wheel slip is
reduced below the allowable limit. The EMC duty cycle
will then be reduced to the touch-off value.Brake/ABS Strategy
When the ABS System is active, the EMC duty cycle
is set to a fixed duty cycle (30%) to aid in braking
without counteracting the ABS System.
4L Strategy
When the system is operating in 4WD low range, the
TCCU continues TOD
TM operation provided that the pro
peller shaft speed is below 175 rpm (5220 pulses/min-
ute). When the speed increases above 175 rpm, the
EMC duty cycle is set to the maximum value (88 %)
which applies the maximum available torque to the front
axle.
Position Encoder
The position encoder is used by the TCCU to determine
the position of the shift motor. Each motor position is
identified by a position code as shown.
Motor Position
Left Stop
Left of High
High
Right of High
Zone 1
Neutral
Zone 2
Low
Right Stop Position code 1/2/3/4
1111
1010
0010
0000
1110
1001
0001
0101
0100
Notice:
All other position codes are invalid
Position input : open circuit (> 4.5V) = 1
Position input : Shorted to speed/position return
(< 0.5V) = 0
Position Sensor Interpretation
1. When the module powers up, it will read the position
sensor and the 4H/4L switch input and respond to
the possible codes as following tables.
2. A command to shift will only be acted upon if the
TCCU is reading a valid code at the time the com-
mand to shift is made.
3. After a shift has started, the TCCU will power the
shift motor until the code for the requested position
is read. If an invalid code is read, the TCCU will go
into a default mode.
4. During a shift attempt, the shift motor will be ener-
gized for a maximum of 5 second

SSANGYONG MY2002
5D1-6 TRANSFER CASE
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4H
4HLeft Stop
Left of High
High
Right of High
Zone 1
Neutral
Zone 2
Low
Right Stop
Left Stop
Left of High
High
Right to High
Zone 1
Neutral
Zone 2
Low
Right stopNo action required. 4WD LOW indicator off.
Blink 4WD LOW indicator.
After the shift conditions are input, attempt a shift to 4H mode if follow-
ing conditions are maintained for 2 seconds conditions are maintained
for 2 seconds.
Shift lever position is in neutral.
The speed of front and rear propeller shaft is below 87 rpm.
After successfully shifting into 4L mode, stop blinking 4WD LOW indicator.
Blink 4WD LOW indicator.
After the shift conditions are input, attempt a shift to 4L mode if following
conditions are maintained for 2 conditions are maintained for 2 seconds.
Shift lever position is in neutral.
The speed of front and rear propeller shaft is below 87 rpm.
After successfully shifting into 4L mode, stop blinking 4WD LOW indicator.
No action required. 4WD LOW indicator on.
4H/4L Switch
InputAction Motor Position

TRANSFER CASE 5D1-7
SSANGYONG MY2002
COMPONENT LOCATOR
TORQUE ON DEMAND (TOD) TYPE TRANSFER CASE
KAA5D010
1 Transmission
2 Transfer Case
3 Rear Propeller Shaft
4 Bolt5 Bolt
6 Front Propeller Shaft
7 Bolt