2003 SSANGYONG MUSSO Service Manual

5A-78 AUTOMATIC TRANSMISSION
Action
Check solenoid.
Check cable for open / short.
Check connection of other connectors.
Check resistance between terminal 36 and 44 of TCU (when the connector is disconnected).
- Standard value : 3.6 - 4.2
Check solenoid.
Check cable for open / short.
Check connection of other connectors.
Check resistance between terminal 1 and 39 of TCU (when theconnector is disconnected).
- Standard value : 26 - 30
Check solenoid.
Check cable for open / short.
Check connection of other connectors.
Check resistance between terminal 1 and 42 of TCU (when theconnector is disconnected).
- Standard value : 26 - 30
Check solenoid.
Check cable for short.
Check connection of other connectors,
Check solenoid.
Check cable for short.
Check connection of other connectors.
Check solenoid.
Check cable for short.
Check connection of other connectors.
Check solenoid.
Check cable for short.
Check connection of other connectors.
Check solenoid.
Check cable for short.
Check connection of other connectors.
Check solenoid.
Check cable for short.
Check connection of other connectors,
Check solenoid.
Check cable for short.
Check connection of other connectors.
Check solenoid.
Possible Cause
Solenoid 5 Solenoid 6Solenoid 7
Short of solenoid 1 Short of solenoid 2Short of solenoid 3 Short of solenoid 4 Short of solenoid 5 Short of solenoid 6 Short of solenoid 7
Symptom
P1737 P1738P1739 P1741 P1742 P1743 P1744 P1745P1746 P1747

AUTOMATIC TRANSMISSION 5A-79
ADJUSTMENTS
HYDRAULIC SYSTEM
The procedures detailed below should be followed in the event that the self test procedure detailed in section 6, or a
defect symptom, indicates that there is a fault in the hydraulic system.
When making adjustments to the transmission, select the appropriate procedures from the following preliminary checks. Conduct a transmission fluid test procedure, refer to section 7.2.
Check the manual linkage adjustment (refer to the vehicle workshop manual).
Check engine idle speed (refer to Section 7.3).
Conduct a stall test (it is outside the scope of this publication to detail this procedure)
conduct a road test (it is outside the scope of this publication to detail this procedure).
TRANSMISSION FLUID TEST PROCEDURE
Checking Transmission Fluid Level
This procedure is to be used when checking a concern with the fluid level in a vehicle. A low fluid level will result in
gearshift loss or delay if driven when the vehicle is cold.
The vehicle is first checked for transmission diagnostic messages (refer to section 6). If the vehicle has a speedo fault
it is possible for the oil level to be low.
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 oil level is a momentary loss of drive when driving the vehicle around a comer. Also when
the transmission fluid level is low, a loss of drive may occur when the transmission oil temperature is low.
If there is no loss of drive when the vehicle is driven warm and a speedo fault is registered, then fluid should be addedto the transmission.
Checking, Adding Fluid and Filling
When adding or changing transmission oil use only Castrol TQ 95 automatic transmission fluid (A TF) or other approved
fluids. The use of incorrect oil will cause the performance and durability of the transmission to be severely degraded. Do not underfill the transmission. Incorrect tilling may cause damage to the transmission. The fluid level setting
procedure is detailed below. Notice
When a transmission is at operating temperature hot transmission fluid may come out of the case if the fill plug is
removed. 9 the transmission is at operating temperature allow two hours for cooling prior to removing the plug.
1. If the vehicle is at operating temperature allow the vehicle to cool down for two, but no greater than four hours before adding transmission fluid (this will allow the transmission to be within the correct temperaturerange).
While hot the ATF level is higher and removing the plug may result in oil being expelled from the filler hole. This
will result in the level being low.
2. The transmission selector is to be in Park. Switch the engine off.
3. Raise the vehicle on a hoist (or leave over a service pit).
4. Clean all dirt from around the service fill plug prior to removing the plug. Remove the oil service fill plug. Clean the fill plug and check that there is no damage to the ‘O’ ring.
Install the filler pump into the filler hole.
5. Lower the vehicle with the filler pump still connected and partially fill the transmission.
Start the vehicle in Park with the Parking brake and foot brake applied with the engine idling, cycle the transmission
gear selector through all positions, adding ATF until gear application is felt.

5A-80 AUTOMATIC TRANSMISSION6. Switch off the engine and raise the vehicle on the hoist, if applicable, ensuring that the vehicle is level.
7. Three minutes after the engine has stopped, but no longer than one hour, remove the filler pump, The correct level is reached when ATF is aligned with the bottom of the filler hole. If the correct level is not reached, then add
a small quantity of ATF to the correct level.
8. Replace the transmission filler plug and clean all remnants of ATF on the transmission and vehicle.
9. Tighten the transmission filler plug to specification.
Checking, Adding Fluid and Filling - Drained or Dry Transmission
To set the correct fluid level proceed as follows. 1. Set the transmission selector to Park and switch the engine off.
2. Raise the vehicle on a hoist (or leave over a service pit).
3. Clean all dirt from around the service fill plug prior to removing the plug, Remove the oil service fill plug. Clean the fill plug and check that there is no damage to the ‘O’ ring. Install the filler pump into the filler hole.
4. Lower the vehicle with the filler pump still connected and partially fill the transmission. This typically requires approximately :
a. If the transmission torque converter is empty:
9.0 litres - 4WD9.0 litres - RWD
b. If the transmission torque converter is full: 4.5 litres - 4WD4.5 litres - RWD
5. Start the vehicle in Park with the Parking brake and foot brake applied with the engine idling, cycle the transmission gear selector through all positions, adding ATF until gear application is felt.
6. Then add an additional 0.5 litres of ATF.
7. Switch off the engine and raise the vehicle on the hoist. Remove the filler pump and replace the filler plug. The plug shall be tightened to specification.
8. The vehicle is then to be driven between 3.5 and 4.5 kilometers at light throttle so that the engine does not exceed 2500 rpm. This should result in the transmission temperature being in the range 50 to 60 °C.
9. With the engine idling, cycle the transmission selector through all gear positions with the brake applied.
10. Stop the engine. Raise the vehicle on the hoist, if applicable ensuring the vehicle is level.
11. Three minutes after the engine has stopped, but no longer than one hour, remove the filler plug. The correct level is reached when ATF is aligned with the bottom of the filler hole. If the correct level is not reached, then add
a small quantity of ATP to the correct level.
12. Replace the transmission filler plug and clean all remnants of ATF on the transmission and vehicle. Tighten the transmission Filler plug to specification.
ELECTRONIC ADJUSTMENTS Idle Speed Adjustment
Carry out the adjustments to the idle speed as detailed in the workshop manual.
Throttle Position Calibration
Should the throttle position data stored in the TCU be lost or be out of specification, as indicated by a diagnostic
trouble message, it may be re-established by the following procedure. Check that the hot engine idle speed is within specification.
Allow the engine to idle in ‘Drive ’ for 60 seconds with the air conditioner (if fitted) turned off. The closed throttle
reference point in the TCU has now been set.
Switch the engine off but leave the ignition on. Hold the accelerator pedal on the floor for 60 seconds. The wide open
throttle reference point in the TCU has now been set.

AUTOMATIC TRANSMISSION 5A-81
Throttle Clearing
The leant throttle clearing routine uses the mode switch and gear lever. Carry out the following steps to complete the
automated throttle clearing procedure:
1. Switch ignition ‘ON ’ with handbrake applied and engine ‘OFF ’.
2. Select ‘M1 ’ and ‘WINTER ’ mode.
3. Move the T-bar to ‘M2 ’ and then select ‘NORMAL ’ or ‘POWER ’ mode.
4. Move the T-bar to ‘M3 ’ and then select ‘WINTER ’ mode.
Vehicle Coding
The vehicle coding is integrated as part of the diagnostic software. The coding applies to the following vehicle models: 1. 4WD Gasoline E32.
2. 4WD Gasoline 523
3. 4WD Gasoline 520.
4. 4WD Diesel D29NA.
5. 4WD Diesel D29LA.
6. 4WD Diesel D23LA.
7. RWD E20.
8. RWD E23.

5A-82 AUTOMATIC TRANSMISSIONMAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
Tightening Torque 70 - 80 Nm
5. Remove the rear propeller shaft .
Installation Notice
REMOVAL & INSTALLATION OF TRANSMISSION
1. Disconnect the negative battery cable.
2. Disconnect the connectors from transfer case.
3. Disconnect the speedometer connector from transfer case.
4. Disconnect the inhibitor and Sear position sensor connector.
6. Unscrew the eight bolts and two nuts, and remove the cross member.

AUTOMATIC TRANSMISSION 5A-83
Tightening Torque 70 - 80 Nm
11. Remove the two pipes for oil cooler. Installation Notice
Tightening Torque 24.5 - 34.3 Nm
12. Remove the service hall cover on torque converter.
13. Put the alignment mark for installation, and unscrew the six mounting bolts for torque converter from drive plate through the service hole (arrow) by rotating the engine
and remove the torque converter. Installation Notice
Tightening Torque 42 Nm
7. Remove the rear propeller shaft.
Installation Notice
8. Unscrew the five bolts and remove the transfer case.
9. Disconnect the 10-Pins Plug connector from transmission.
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.
Screw the six bolts mounting the torque converter through the service hole by using a mirror and rotating the engine.

5A-84 AUTOMATIC TRANSMISSION
Tightening Torque 55 - 65 Nm
14. Remover the starter.
15. Unscrew the eight transmission housing bolts and remove
the transmission assembly.Installation Notice Be careful not to drop the torque converter while removing the transmission.
16. Installation should follow the removal procedure in the reverse order.

AUTOMATIC TRANSMISSION 5A-85
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 batted 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
section 7 of this manual if the powertrain control module
transmission control unit (PCM/TCU) is swapped.
DISASSEMBLY PROCEDURE
Transmission 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 table 9.10 in section 9.6 for details
of all sp ecial tools required when performing disassembly
procedures.
Technicians overhauling these transmissions will also require a selection of good quality T orx bit sockets, in particular
numbers 30, 40 and 50, and an 8 mm,10 mm and 12 mm double hex socket.
To disassemble the transmission, proceed as follows:
1. Remove the converter and the converter housing.
2. Mount the transmission on the bench cradle
No.0555-331895.
3. Remove the sump and the sump seal.