SsangYong Korando II (1996-2006 year). Manual - part 283

5A-36  AUTOMATIC TRANSMISSION

SSANGYONG  MY2002

DRIVE 4 LOCK UP

KAA5A47A

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

X

C2

X

C3

-

C4

-

B1

X

B2

-

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.

AUTOMATIC TRANSMISSION  5A-39

SSANGYONG  MY2002

4. Place a fluid container below the fluid filler plug.

5. Clean all dirt from around the fluid filler plug.

Remove the fluid filler plug. Clean the filler plug
and check that there is no damage to the ‘O’ ring.

•

If fluid drains through the filler hole the transmis-
sion may have been overfilled. When the fluid
stops draining the fluid level is correct. Install
the fluid filler plug and tighten it to 33 N•m (24
lb-ft).

•

If fluid does not drain through the filler hole, the
transmission fluid level may be low. Install the
filler pump into the filler hole. Lower the vehicle
with the filler pump still connected and partially
fill the fluid through the filler hole.

Start the vehicle in P (Park) with the parking
brake and the brake applied. With the engine
idling, move the gear shift. control lever through
the gear ranges, pausing a few seconds in each
range and adding the fluid until gear application
is felt.

Return the gear shift lever to P (Park).

Turn the engine OFF and raise the vehicle. When
the three minutes passed after the engine
stopped, remove the filler pump.

Check if the fluid level is aligned with the bottom
of the filler hole. If not, add a small quantity of
fluid to the correct level. Install the fluid filler
plug and tighten it to 33 N•m (24 lb-ft).

•

If fluid does not drain through the filler hole al-
though adding a total of 1.5 liters, the transmission
should be inspected for fluid leaks and any leaks
should be fixed before setting the transmission
fluid level.

6. When the fluid level checking procedure is com-

pleted, wipe any fluid around the filler plug with a
rag or shop towel.

Fluid Level Set After Service

1. Depending on the service procedure performed,

add the following amounts of fluid through the filler
plug hole prior to adjusting the fluid level:

Converter empty

8.0 liters  (8.5 quarts)

Converter full

3.8 liters  (4.0 quarts)

2. Follow steps 1 through 4 of the Fluid Level Diagnosis

Procedure.

3. Clean all dirt from around the fluid filler plug.

Remove the fluid filler plug. Clean the filler plug
and check that there is no damage to the ‘O’ ring.

4. Lower the vehicle with the filler pump still connected

and start the vehicle in P (Park) with the parking
brake and the brake applied. With the engine idling,
move the gear shift control lever through the gear
ranges, pausing a few seconds in each range and
adding the fluid until gear application is felt.

Then add an additional 0.5 litres of fluid. Return
the gear shift lever to P (Park). Turn the engine OFF
and raise the vehicle. Install the fluid filler plug and
tighten it to 33 N•m (24 lb-ft).

5. Drive the vehicle at 3.5 to 4.5 kilometers with light

throttle so that the engine does not exceed 2500
rpm.

This should result in the transmission temperature
being in the range 50 - 60 °C (82 - 140 °F). With the
brake applied, move the shift lever through the gear
ranges, pausing a few seconds in each range at
the engine idling.

6. Return the gear shift lever to P (Park).

Turn the en-gine OFF and raise the vehicle on the
hoist, if applicable, ensuring the vehicle is level.
When the three minutes passed after the engine
stopped, remove the filler plug.

Check if the fluid level is aligned with the bottom of
the filler hole. If not, add a small quantity of fluid to
the correct level. Install the fluid filler plug and
tighten it to 33 N•m (24 lb-ft).

7. Wipe any fluid around the filler plug with a rag or

shop towel.

FLUID LEAK DIAGNOSIS AND
REPAIR

The cause of most external leaks can generally be lo-
cated and repaired with the transmission in the vehicle.

Methods for Locating Leaks

General Method

1. Verify that the leak is transmission fluid.

2. Thoroughly clean the suspected leak area.

3. Drive the vehicle for approximately 25 km (15 miles)

or until the transmission reaches normal operating
temperature (88 °C, 190 °F).

4. Park the vehicle over clean paper or cardboard.

5. Turn the engine OFF and look for fluid spots on the

paper.

6. Make the necessary repairs to correct the leak.

Powder Method

1. Thoroughly clean the suspected leak area.

2. Apply an aerosol type powder (foot powder) to the

suspected leak area.

3. Drive the vehicle for approximately 25 km (15 miles)

or until the transmission reaches normal operating
temperature (88 °C, 190 °F).

4. Turn the engine OFF.

5. Inspect the suspected leak area and trace the leak

path through the powder to find the source of the
leak.

6. Make the necessary repairs.