1997 SSANGYONG KORANDO oil

AUTOMATIC TRANSMISSION 5A-35
SSANGYONG MY2002
Power Flow - Drive 4 (Overdrive)
In Drive 4 (Overdrive), transmission drive is via the
input shaft to the forward clutch cylinder.
The elements of the transmission function as follows;
The C1 clutch is applied to drive the planet carrier
clockwise.
The B1 band is applied to hold the reverse sun gear
stationary.
As the planet carrier tuns, the long pinion walks
around the stationary reverse sun gear and rotates
around its axis driving the internal ring gear and
output shaft in a clockwise or forward direction at a
speed faster than the input shaft i.e. in overdrive
ratio.
The forward sun gear is also driven faster than the
input shaft and overruns the 3-4 OWC.
The C2 clutch is engaged to reduce the speed differ-
ential across the 3-4 OWC.
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows;
Solenoid S1 is switched ON. S2 is switched OFF.
With S1 switched ON, the 3-4 shift valve is held in
the fourth gear position by line 500 pressure on the
small end of the valve.
With S2 switched OFF, the 2-3 shift valve is held in
the fourth gear position by line 500 pressure on the
large end of the valve.
The 1-2 shift valve is held in the fourth gear position
by S2 oil pressure.
2nd oil (line pressure) from the 1-2 shift valve is di-
rected to the band apply feed regulator valve, and
to the 2-3 shift valve.
The band apply feed regulator valve supplies 2nd
oil (regulated to line pressure multiplied by the valve
ra-tio) to the Band Apply Feed (BAF) circuit.
Band apply feed oil is directed to;
- the outer apply area of the front servo
- the inner apply area of the front servo piston via
the 3-4 shift valve
- the 1-2 shift valve to provide an exhaust port
when the transmission is shifted to first gear
2nd oil at the 2-3 shift valve is directed to the 3rd
oil circuit.
3rd oil from the 2-3 shift valve is directed to the
clutch apply regulator valve, and to the 4-3
sequence valve.
The clutch apply regulator valve supplies oil (regu-
lated to line 500 pressure multiplied by the valve
ratio) to the Clutch Apply Feed (CAF) circuit.
The CAF oil is directed to;
- the C1 clutch
- the 4-3 sequence valve
Drive oil (line pressure) from the manual valve en-
gages the C2 clutch.
Gear State
Drive 4 Overdrive
C1
XC2
XC3
-C4
-B1
XB2
-1-2
OWC
-3-4
OWC
-LU
CLUTCH
- ELEMENTS ENGAGED
KAA5A460

AUTOMATIC TRANSMISSION 5A-37
SSANGYONG MY2002
Power Flow - Drive 4 Lock Up
In Drive 4 Lock Up, transmission drive is the same as
for Drive 4 but with the application of the converter
lock up clutch to provide positive no-slip converter
drive.
Control
To maintain this arrangement in the steady state sole-
noids and valves are activated as follows;
When S7 is switched ON, S7 feed oil to the converter
clutch control valve is switched OFF and allowed
to exhaust through the S7 solenoid. This allows the
valve to move to the clutch engage position.
Regulated apply feed oil, drived from drive oil at
the converter clutch regulator valve, is directed by
the converter clutch control valve to the engage side
of the converter clutch.
Converter clutch release oil is exhausted at the con-
verter clutch control valve.
Converter feed oil is re-routed by the converter clutch
control valve directly to the oil cooler and lubrication
circuit.
C1
XC2
XC3
-C4
-B1
XB2
-1-2
OWC
-3-4
OWC
-LU
CLUTCH
- ELEMENTS ENGAGED
Gear State
Drive 4 Lock Up
KAA5A480

5A-38 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
DIAGNOSIS
BASIC KNOWLEDGE REQUIRED
You must be familliar with some basic electronics to
use this section of the Service Manual. They will help
you to follow diagnostic procedures.
Notice: Lack of the basic knowledge of this transmis-
sion when performing diagnostic procedures could re-
sult in incorrect diagnostic performance or damage to
transmission components. Do not, under any circum-
stances, attempt to diagnose a transmission problem
without this basic knowledge.
Notice: If a wire is probed with a sharp instrument
and not properly sealed afterward, the wire will corrode
and an open circuit will result.
Diagnostic test probes are now available that allow
you to probe individual wires without leaving the wire
open to the environment. These probe devices are
inexpensive and easy to install, and they permanently
seal the wire from corrosion.
Special Tools
You should be able to use a Digital Volt Meter (DVM),
a circuit tester, jumper wires or leads and a line
pressure gauge set. The functional check procedure
is designed to verify the correct operation of electronic
components in the transmission. This will eliminate the
unnecessary removal of transmission components.
FUNCTIONAL CHECK
PROCEDURE
Begin with the Functional Check Procedure which pro-
vides a general outline of how to diagnose automatic
transmission. The following functional check procedure
will indicate the proper path of diagnosing the transmis-
sion by describing the basic checks and then referenc-
ing the locations of the specific checks.
Check the fluid level according to the Fluid Level
Service Procedure.
Check the transmission fluid leak.
Check if the transmission fluid is not burnt by smell.
Notice: The specific fluid used in this transmission
turns brown during normal operation. Brown fluid
does not indicate a transmission fault.
Ensure that the transmission is not in Limp Home
Mode (LHM).
Check the battery terminals and the earth connec-
tions for corrosion or looseness.
Check that the cooler flow is not restricted.
Check all electrical plug connections for tightness.
Use on-board diagnostic tool or a scan tool to see
if any transmission trouble codes have been set.
DIAGNOSTIC INFORMATION AND PROCEDURES
Refer to the appropriate “Diagnostic Trouble Code
(DTC)” information and repair the vehicle as
directed. After repairing the vehicle, perform the
road test and verify that the code has not set again.
Perform the Electrical/Garage Shift Tests.
Perform the Road Test Procedure in this section.
Inspect the oil and check for metal or other contami-
nants in the oil pan.
TRANSMISSION FLUID LEVEL
SERVICE PROCEDURE
This procedure is to be used when checking a concern
with the fluid level in a vehicle. A low fluid level will
result in slipping and loss of drive/ reverse or delay on
engagement of drive/ reverse when the vehicle is cold.
The vehicle is first checked for transmission diagnostic
messages on the scan tool. If the oil level is low, it is
possible to register a vehicle speed signal fault.
The vehicle is to be test driven to determine if there is
an abnormal delay when selecting drive or reverse, or
loss of drive. One symptom of low fluid level is a
momentary loss of drive when driving the vehicle around
a corner. Also when the transmission fluid level is low,
a loss of drive may occur when the transmission fluid
temperature is low.
If there is no loss of drive when the vehicle is driven
warm and a vehicle speed signal fault is registered,
then fluid should be added to the transmission.
When adding or changing transmission fluid use only
Castrol TQ 95 automatic transmission fluid. The use of
incorrect fluid will cause the performance and durability
of the transmission to be severely degraded.
Fluid Level Diagnosis procedure
1. If the vehicle is at operating temperature allow the
vehicle to cool down for two hours, but no greater
than four hours. Or if the vehicle is at cool status,
start the engine and allow the engine to idle for
approximately 5 minutes or, if possible, drive the
vehicle for a few kilometers. This will allow the
transmission to be within the correct temperature
range. Transmission fluid level should be checked
at temperature 50 - 60 °C (82 - 140 °F).
Caution: Removal of the fluid filler plug when
the transmission fluid is hot may cause injury if
fluid drains from the filler hole.
2. With the brake pedal pressed, move the gear shift
control lever through the gear ranges, pausing a
few seconds in each range. Return the gear shift
control lever to P (Park). Turn the engine OFF.
3. Park the vehicle on a hoist, inspection pit or similar
raised level surface. The vehicle must be control
level to obtain a correct fluid level measurement.

5A-46 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
AFTER TEARDOWN FAULTS
Condition
C2 burntPossible Causes
Gear shift lever linkage out of
adjustment.
S6 foiled - stuck low.
Overdrive/output shaft sealing
rings damaged.
C2 piston cracked.
Incorrect C4 pack clearance.
C4 wave plate not lined up
properly.
Overdrive or output shaft sealing
rings damaged.
C2 piston cracked.
Over-run Clutch (OC) /low-1st
ball misplaced.
B1R spring broken.
Input shaft sealing ring cut.
C1/B1R ball misplaced.
B1R spring left out.
Overdrive or input shaft sealing
rings damaged.
C1 piston cracked.
Ball capsule jammed.
4-3 sequence valve in backwards.
Clutch Apply Feed (CAF) /B1R
ball left out.
Rear band incorrectly adjusted
or damaged.
Reverse-low/first ball misplaced.Action
Inspect, repair C2 and adjust
the linkage as necessary.
Repair C2. Inspect, repair or
replace S6 as necessary.
Repair C2. Inspect, replace the
sealing rings and/or shaft as
necessary.
Repair C2. Inspect, repair or
replace the C2 piston as
necessary.
Inspect C4 and repair as
necessary.
Inspect and adjust the C4 pack
clearance as necessary.
Repair C4. Inspect and realign
the wave plate as necessary.
Repair C4. Inspect and realign
the sealing rings and/or shaft as
necessary.
Repair C4. Inspect and replace
the C2 piston as necessary.
Repair C4. Inspect and refit the
ball as necessary.
Inspect and repair B1 and
replace the spring as necessary.
Replace sealing ring.
Repair B1. Refit the ball as
necessary.
Inspect and repair C1 and
replace the spring.
Repair C1. Inspect and replace
the sealing tongs and/or shaft
as necessary.
Repair C1. Inspect and replace
the C1 piston as necessary.
Repair C1. Inspect and refit the
capsule as necessary.
Repair C1. Inspect and refit the
valve as necessary.
Repair C1. Inspect and replace
the ball as necessary.
Inspect and adjust the band as
necessary.
Inspect and refit the ball as
necessary.
C4 burnt
B1 burnt
C1 burnt
B2 burnt
(Slips in reverse - no manual 1st )

5A-62 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
Circuit Description
The Transmission Fluid Temperature (TFT) sensor is a
thermistor located in the solenoid wiring loom within
the valve body of the transmission. This sensor is a
typical Negative Temperature Coefficient (NTC) resistor
with low temperatures producing a high resistance and
high temperatures producing a low resistance.
If the transmission fluid temperature exceeds 135 °C
(275 °F), the TCM will impose converter lock-up at lower
vehicle speeds. Favour a lower gear to increase engine
speed, and in some vehicles flashes the mode indicator
lamp. This results in maximum oil flow through the exter-
nal oil cooler and eliminates slippage in the torque
converter. Both these actions combine to reduce the
oil temperature in the transmission.
The DTC P0710 sets when the TFT sensor signal is not
feasible.
Conditions for Setting the DTC
Transmission fluid temperature sensor signal is
greater than 4.88 volts (immediate detection).
Transmission fluid temperature sensor signal is less
than 0.21 volts (immediate detection).
Transmission temperature has not changed by 2 °C
in 15 minutes since ignition on and temperature is
less than 20 °C or greater than 125 °C.
Action Taken When the DTC Sets
Transmission fluid temperature is assumed to be
120 °C (248 °F).
All shifts will be firm until the transmission has
warmed up because a high transmission fluid
temperature is assumed.
DIAGNOSTIC TROUBLE CODE (DTC) P0710
TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT
MALFUNCTION
Conditions for Clearing the DTC
The DTC will clear when the malfunction has not oc
curred for 3 seconds.
A history DTC will clear after 40 TCM power-up cycles
with a warm transmission (>50 °C) and without a
fault.
History DTCs can be cleared by using a scan tool.
Diagnostic Aids
The voltage measured by the TCM across the trans-
mission fluid temperature input terminals has been
outside acceptable levels.
If the DTC sets when an accessory is operated,
check for a poor connection or excessive current
draw.
Inspect the wiring for poor electrical connections
at the TCM and at the 10-way transmission
connector. Look for possible bent, backed out,
deformed or damaged terminals. Check for weak
terminal tension as well. Also, check for chafed wires
that could short to bare metal or other wiring. Inspect
for broken wires inside the insulation.
In searching for a possible intermittent short or open
condition, move or massage the wiring harness
while observing test equipment for a change.
Test Description
The number(s) below refer to the step number(s) on
the Diagnostic Table.
5. This step simulates a DTC P0710 condition. If the
scan tool displays the specified value, the TFT
sensor signal circuit and the TCM are OK.
KAA5A5M0

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)

5A-160 AUTOMATIC TRANSMISSION
SSANGYONG MY2002
UNIT REPAIR
REBUILD WARNINGS
Prior to rebuilding a transmission system, the following warnings are to be noted.
Ensure that, before replacing a transmission the cooler lines are flushed out to remove any debris. This can
be done by applying compressed air to the rear cooler line forcing oil and any contaminants out of the front
cooler line.
The cooler flow should be checked after the transmission has been fitted. With the front cooler line connected
and the rear line run into a suitable container, measure the flow over 15 seconds with the vehicle idling in park.
The flow rate should exceed 1 liter in 15 seconds.
Be wary of any situation where water enters the transmission. This may result in fluid foaming and leaking
through the breather.
Ensure that both earth straps (one at the battery terminal and one on the vehicle body) are connected in the
vehicle before connecting the positive side of the battery.
Follow the throttle position calibration procedure in this manual if the engine control module/ transmission
control module (ECM/TCM) is swapped.
KAA5A710

AUTOMATIC TRANSMISSION 5A-161
SSANGYONG MY2002
DISASSEMBLY PROCEDURE
Transmission
Tools Required
0555-336256Transmission Bench Cradle
0555-336257Pump Puller
Notice:
Remove the inhibitor switch before washing the
transmission in solvent or hot wash.
 It is assumed that the transmission fluid has been
drained when the transmission was removed from
the vehicle and that the ‘special tools’ quoted are
available.
The transmission is dismantled in a modular fashion,
and the details of disassembly for each module are
given under the appropriate subject. Refer to Special
Tools Table in this chapter for details of all special
tools required when performing disassembly
procedures.
Technicians overhauling these transmissions will
also require a selection of good quality Torx bit
sockets, in particular numbers 30, 40 and 50, and
an 8 mm, 10 mm and 12 mm double hex socket.
1. Remove the converter and the converter housing.
2. Mount the transmission on the transmission bench
cradle 0555-336256.
3. Remove the oil pan and the oil pan seal.
4. Remove each end of the filter retaining clip from
the valve body and remove the filter.
5. Disconnect the wires from each solenoid and ground
and lay the wiring to one side.
6. Remove the valve body securing screws and
remove the valve body from the case.
KAA5A500
KAA5A510