display SSANGYONG MUSSO 1998 Workshop Repair Manual

2A-12 SUSPENSION DIAGNOSIS
SELF DIAGNOSIS TEST
DIAGNOSIS TEST
Special Tool Requirements : Scanner
1. Position the ignition switch to 'OFF'.
2. Connect Scanner harness connector to the engine
compartment diagnosis socket.
3. Turn the ignition switch to 'ON' position.
4. Select "Electronic control vehicle diagnosis" from function
selection display and press "Enter".
5. Select "Musso ('98 model year)" from vehicle model selection
display and press 'Enter'.
6. Select "Electronic suspension system (ECS)" from control
system selection display and press 'Enter'.
7. Select "Self-diagnosis" from diagnosis item selection display.
Notice
Check sensor value output display, if necessary.
8. Determine the fault code and check defective component.
Notice
Refer to self-diagnosis list.

AUTOMATIC TRANSMISSION 5A-75
SELF DIAGNOSIS TEST
1. Turn the ignition switch to “OFF” position.
2. Connect the scanner harness connector to the engine
compartment diagnosis socket.
3. Turn the ignition switch to “ON” position.
4. Select “Electronics control vehicle diagnosis” from the
function selection display and press “Enter”.
5. Select “Musso(98 face lift)” from the vehicle model selection
model selection display and press “Enter”.
6. Select “Transmission control unit(TCU)” from the control
system selection and press “Enter”.
7. Select “Self-diagnosis” from diagnosis items.
Notice
Check sensor output value displays if necessary.
8. Determine the fault code and check the detective Items.
Notice
Refer to sefadf3fnosfs list.

5D1-4 TRANSFER CASE (PART TIME 4408)
SELF-DIAGNOSIS
SYSTEM DESCRIPTION
1. TCCU detects transfer case system malfunctions and
indicates malfunctioning part(s) through flashing 4H,4L
indicator lights.
Using a service connector, connect it to the diagnosis box
in the engine room and read the flashing of the ‘4WD
CHECK’ indicator light.
The flashing indicator light will show you defective code(s).
2. Identify 7 defective codes after reading the flashing indicator
light.
lTCCU
lShift motor
lMagnetic synchronizer clutch
lSpeed sensor
lHub solenoid
lSelector switch
lMotor position sensor
3. Transfer case system is malfunctioning when:
l4H ,4L indicator lights are remain on after 0.6 second
when turning the ignition switch ‘ON’
l4H,4L indicator lights are continuously come on during
driving.
4. If only 1 part is malfunctioning, ‘4WD CHECK’ indicator light
will display defective code 3 times continuously.
5. If more then 2 part is malfunctioning, the first malfunctioning
part will be displayed 3 times and following malfunctioning
parts will be displayed .
6. To read defective code, connect the service connector and
turn the ignition switch 'ON'.
7. After repairing, eliminate the defective code stored in the
TCCU.
Notice
Before replacing the malfunction parts with defective code,
check the wires and connectors for proper condition.

5D1-6 TRANSFER CASE (PART TIME 4408)
Diagnostic Table
Connect a service connector. If turn the ignition switch ‘ON’
‘4WD CHECK’ indicator light will come on for 0.6 second and
turn off for 3 seconds and then display a defective code 3
times continuously.
No.Defective Code
Malfunctioning Part
1
2
3
4
5TCCU
Shift Motor
Synchronizer Clutch
Speed Sensor
Hub Solenoid
4WD
CHECK
Light
ON
OFF
Defective Code
4WD
CHECK
Light
ON
OFF
Defective Code
4WD
CHECK
Light
ON
OFF
Defective Code
4WD
CHECK
Light
ON
OFF
Defective Code
4WD
CHECK
Light
ON
OFF
Defective Code

5D1-8 TRANSFER CASE (PART TIME 4408)
SELF-DIAGNOSIS TEST
Test Procedure
1. Connect the scanner harness connector to the engine
compartment diagnosis socket.
2. Turn the ignition switch to "ON" position.
3. Select "Electronic control vehicle diagnosis" from the function
selection display and press "Enter".
4. Select "Musso" from vehicle model selection display and
press "Enter".
5. Select "TCCU" from control system selection display and
press "Enter".
6. Select "TCCU Part Time" from TCCU diagnosis selection
display.
Notice
Check sensor valve output display if necessary.
7 . Select "Self-diagnosis" from diagnosis items selection display.
8. Turn the ignition switch to "OFF" position and press
"ENTER". Turn the ignition swtich to "ON" position again
and press "ENTER".
9. Determine fault code and check the defective component.
Notice
Refer to self-diagnosis list.

TRANSFER CASE (TOD) 5D2-7
1. K-LINE : Communication line for coding and diagnosis with SCANNER.
Classification of Pin No.
ClassificationPin No. Pin NameDescription
Power Supply17,18Ground
TOD control unit ground
4,19Battery
TOD control unit battery supply : (Fuse No 13,20A)
5IgnitionIgnition ON / OFF
27Position 1
Position encoder 1 : check of shift motor position
10Position 2
Position encoder 2 : check of shift motor position
28Position 3
Position encoder 3 : check of shift motor position
30Position 4
Position encoder 4 : check of shift motor position
94H/4L SwitchTransfer case mode input
24Auto T/M Neutral
Check of neutral gear position in Auto T/M
16Speed5V supply (TPS / speed sensor)
11Front Speed
Front speed sensor signal input Signal Input
29Rear Speed
Rear speed sensor signal input
25ABS Operation
ABS ON / OFF
6Position Return
Position encoder ground
13Speed / TPS ReturnGround for speed sensor / TPS
22CAN-LCAN bus low line
23CAN-HCAN bus high line
2,15Motor LO-HIMotor output port
- LO to HI : join with battery
- HI to LO (or motor brake) : join with ground
1,14Motor HI-LO
Motor output port
- HI to LO : join with battery
- LO to HI (or motor brake) : join with ground
3EMCTOD output
Signal Output
214L IlluminationIlluminates “4L” indicator
7Diagnosis Display
4WD check lamp illuminator
- Upon defect ; Ground circuit
20K-LINE1)Diagnosis

5D2-12 TRANSFER CASE (TOD)
Pin
1
2
3
4
5
6
7
8Function
Motor HI-LO
Motor LO-HI
EMC
Battery (+)
Ignition
Position Return
Diagnosis Display
-Pin
9
10
11
12
13
14
15
16Function
HI / LO Switch
Position 2
Front Speed
TPS Supply (Diesel)
Speed/TPS Return
Motor HI-LO
Motor LO-HI
Speed ReferencePin
17
18
19
20
21
22
23
24Function
Ground
Ground
Battery (+)
K-LINE
4L Illumination
CAN-H
CAN-L
Auto T/M, NeutralPin
25
26
27
28
29
30
-
-Function
ABS Input
Brake Switch
Position 1
Position 3
Rear Speed
Position 4
-
-
TOD CONTROL UNIT
Shape and function of TOD Control Unit

TRANSFER CASE (TOD) 5D2-21
DIAGNOSIS
Malfunction interior TOD control unit ; fault code
1714
lPhenomenon
1. When ignition “ON”, “4WD CHECK” lamp illuminates
continuously.
2. On diagnosis by SCAN-100, it displays fault code “1714”.
lCause ; Error of EEPROM checksum in TOD control unit
Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check power supply for TOD control unit.
1. Disconnect 30 pin connector from TOD control unit.
2. Ignition “ON”.
3. Using multi-tester, measure voltage between pin 5(+)
and 17/18 (-).
- Specified value
- Measured value is within specified range ?11-14 Vdc
Ye s
NoPerform A2 stage
Perform A3 stage
Check connection status in TOD control unit connector.
1. Check connection status.
- Is it connected exactly?
2. In case of mal-connection, connect tightly then perform
the follows.
a. Delete fault code using Scan-100.
b. Ignition “OFF”.
c. Ignition “ON”.
d. Diagnose by Scan-100.
- Does it display fault code “1714”?Ye s
No
Ye s
No
Check short of 10A fuse (fuse No.20).
1. Detach No.20 fuse from engine room fuse box.
2. Check the existence of short.
- Is fuse normal? Yes
No
Check ground of TOD control unit.
1. Ignition “ON”.
2. Check voltage between 4/19 (+) pin and 17/18 (-)
using multi-tester (keep connection status).
- Specified value (battery is good)
- Measured value
3. Check short between 17/18 pin and body after
disconnect 30 pin connector.
- Is resistance "¥"?12Vdc (battery
voltage)
Ye s
No
Ye s
No A1
A2
A3
A4
Perform A3 stage
Perform A2 stage
Perform A3 stage
Normal system
Perform A4 stage
Replace fuse, then
perform A1 stage
Perform A4-3 stage
Replace TOD control
unit
Repair ground wiring
Ground is O.K.,
perform A5 stage

5D2-22 TRANSFER CASE (TOD)
Check function of TOD control unit.
1. Even A1, A2, A3 and A4 test, if you could not find defect,
it is required to replace TOD control unit on basis of
below phenomena.
a. ”4WD CHECK” lamp illuminates continuously when
ignition “ON”.
b. Shift is not possible even 4H/4L switch operation.
c. Upon diagnosis by Scan-100, it displays on
“impossible communication with TOD control unit”
or fault code “1714, 1715, 1716”.
- Do occur the above defects? Yes
NoReplace TOD control
unit
Normal system A5Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure

TRANSFER CASE (TOD) 5D2-23
Error of signal in engine throttle position ; fault
code 1715, 1716
lPhenomenon
1. Upon diagnosis by SCAN-100, it display on 1715,
1716 codes.
lCause
1. Bad communication line between E/G ECU and CAN.
2. Defect of TOD control unit.
3. Defect of E/G ECU.
Check connection status of connector through CAN
communication line.
1. Check connection of connector.
- Does connector connect correctly between TOD
control unit and E/G ECU?
2. In case of bad connection, connect correctly then
perform the follows ;
a. Delete the memorized fault code using SCANNER.
b. Ignition “OFF”.
c. Ignition “ON”.
d. Diagnose by SCANNER.
- Does it display fault codes “1715” or “1716”.Ye s
No
B1
Ye s
No
Check connection status of CAN communication line towards
E/G ECU.
1. Ignition “OFF”.
2. Disconnect 30 pin connector towards TOD control unit.
3. Measure resistance between pin No.22 and 23 in wiring
connector using multi-tester.
- Specified value
- Measured value is within specified range? B2
115-125W
Ye s
No
Check connection status of CAN communication line towards
TOD control unit.
1. Ignition “OFF”.
2. Disconnect coupling of E/G ECU (gray, 1-60 pin).
3. Measure resistance between pin No.37 and 38 in
coupling using multi-tester.
- Specified value
- Measured value is within specified range? B3
115-125W
Ye s
No Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Perform B2 stage
Perform B1-2 stage
Perform B2 stage
Normal system
Perform B3 STAGE
Perform B4 stage,
check and replace E/
G ECU
Perform B5 STAGE
Replace TOD control
unit