4WD SSANGYONG MUSSO 1998 Workshop Owner's Guide

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

5D2-26 TRANSFER CASE (TOD)
0Vdc
11 - 15Vdc
Ye s
No
2.5W
Ye s
No C3Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check resistance of electro-magnetic clutch.
1. Disconnect 30 pin connector from TOD control unit.
2. Measure resistance between pin 3 and 7 in wiring
connector using multi-tester.
- Specified value
- Measured value is within specified range?Perform C4 stage
l0W : short
l¥W : open
C4Check operational voltage of elector-magnetic clutch.
1. Ignition "ON"
2. Measure voltge between pin 3(+) and 17(-)in TOD
control unit connector.
- Specified value 4WD high
4WD low
- Measure value is within specified range ?Replace TOD
control unit
Replace wire

TRANSFER CASE (TOD) 5D2-27
Defect in speed sensor : fault code 1731, 1732,
1733, 1734, 1735,1736
lPhenomenon
1. Upon diagnosis by SCANNER, it displays on fault code
1731, 1732, 1733, 1734, 1735 and 1736.
2. “4WD CHECK” lamp illuminates continuously when
ignition “ON”.
lCause
1. Defect of speed sensor (front, rear).
2. Defect of power supply.
4.75-5.25Vdc
Ye s
No D1
Ye s
No
D2
Ye s
Ye s
Ye s
No D3Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check power supply of speed sensor.
1. Ignition “ON” or driving mode
2. Measure supply voltage between pin 16 (+) and 13 (-) in
TOD control unit connector using digital multi-tester.
- Specified value
- Measured value is within specified range ?
Check connection status of connector.
1. Check connection status of speed sensor/clutch coil
connector and TOD control unit connector.
- Does it connect correctly ?
2. In case of bad connection, connect it correctly then
perform the follows:
a. Delete the memorized fault code in control unit by
SCANNER.
b. Ignition “OFF”.
c. Ignition “ON”.
d. Diagnose by SCANNER.
- It does not display fault code.
- It displays one or more fault code among 1731 to
1736.
Check output wave of front and rear speed sensor.
1. Upon driving mode.
2. Check output wave of each speed sensor by SCANNER.
3. Is it normal on output wave ?Perform D3 stage
Perform D2 stage
Perform D3 stage
Perform D2-2 stage
Normal system
Perform D3 stage
Perform D4 stage
Replace speed
sensor then
perform D2-2 stage

TRANSFER CASE (TOD) 5D2-29
Shift motor malfunction : Fault code ® 1741,
1742, 1743
lPhenomenon
1. When change the 4H/4L switch from 4H to 4L, ‘4L’
indicator lamp turn off after blinking for a time and then
‘4WD CHECK’ indicator lamp turn on.
2. Fault codes display by diagnosis of SCAN-100 : 1741,
1742, 1743
3. The shifting operation is not occurred when 4H / 4L switch,
is operating.
lCause
Defect in shift motor, improper voltage provided, incorrect
connection in connector, short of wiring.
11-14 V
(Battery voltage)
Ye s
No E1
11-14 V
(Battery voltage)
Ye s
No
Ye s
No
E2
Ye s
No Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check the input voltage of shift motor.
1. Turn the ignition switch to “ON” position.
2. Measure the Hi/Low voltage of motor which is located
between No.1/No.14 and No.2/No.15 connector of TOD
control unit with digital Multi-tester or which is located
between No.G connector and body after detaching T/C
motor connector.
- The specified value (When operates 4H/4L switch)
- Measured value is within specified range ?
3. Measure the Hi/Low voltage of motor which is located
between No.2/No.5 and No.1/No.14 connector or which
is located No.B connector and body after detaching T/C
motor connector
- The specified value (When operates 4H/4L switch)
- Measured value is within specified range ?
Check the fault condition of the relevant connector.
1. Check the installation condition of TOD control unit 30pin
connector and T/C shift motor connector.
- Is it installed properly ?
2. If the connector installation is improper, install properly
and then perform follows :
a. Delete the fault code of control unit by scan scope
b. Turn off the ignition switch
c. Turn on the ignition switch
d. Re-diagnosis of system
It displays one or more fault code among 1741 to 1743.Perform E1-3 stage
Perform E2 stage
Perform E4 stage
Perform E2 stage
Perform E3 stage
Perform E2-2 stage
Perform E3 stage
Normal system

TRANSFER CASE (TOD) 5D2-31
Position incoder and position 1,2,3,4 malfunction
:Fault code®1750,1751,1752,1753, 1754
lPhenomenon
The ‘4WD check’ lamp can not go out when the ignition
switch positioned to ‘ON’.
The fault code display 1750, 1751, 1752, 1753, 1754 by
diagnosis of SCAN-100.
lCause
The portion of position incoder malfunction, each wiring is
shorted with ground.
Ye s
No
F1
Ye s
No
Ye s
No F2Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check the installation condition of connector.
1. Check the installation condition between 30 pin connector
of TOD control unit and motor connector of T/C portion.
- Is it installed properly ?
2. If the connector installation is improper, install properly
and then execute follow procedure.
a. Delete the all fault code from memory by scan scope.
b. Turn off ignition switch.
c.Turn on ignition switch.
d. Rediagnosis the system.
- Does the fault codes display one or more among
1750 ~ 1754.
Check the each wiring whether it is shorted or not.
1. Turn off the ignition switch
2. Detach the 30 pin connector of TOD control unit.
3. Perform short test each connector, No.27 (Position 1),
No.10 (Position 2), No.28 (Position 3),No.30 (Position
4), No.6 with body.
- Is there resistance of 0W?Perform F2 stage
Perform F1-2 stage
Perform F2 stage
Normal system
Repair or replace
due to wiring short
1. Replace the
motor Ass’y due
the defective
position incoder
portion.
2. And then, perform
F1-2 stage.

9A-8 BODY WIRING SYSTEM
1 Fuse Box
2 Door Lock Relay
3 Relay Box
3.1 Front Wiper Relay
3.2 ABS Warning Lamp Relay....................................ABD 5.0
3.3 Flasher Unit
3.4 Fuel Pump Relay.................................................Gasoline E/G
3.5 Shift Lock Relay...................................................Automatic Transmission
3.6 Clutch Interlock & Neutral Relay...........................Manual Transmission or Automatic Transmission
3.7 Sun Roof Relay
3.8 Automatic Transmission ‘B’ Switch Interlock.......Automatic Transmission
3.9 Power Window Relay
3.10 Rear Fog Lamp Relay..........................................Rear Fog Lamp
3.11 ECS Relay
4 Defogger Relay
5 Ground 1
6 Roof Wiring Connector
7 Diode 1
8 Front Door Wiring Connector
9 Front Door Wiring Connector
10 Front Door Wiring Connector
11 Front Door Wiring Connector
12 Kick Down Relay..................................................Automatic Transmission
13 Floor Wiring Connector
14 Floor Wiring Connector
15 Floor Wiring Connector
16 ABD Floor Wiring Connector................................ABD 5.0
17 ECS Floor Wiring Connector
18 Rear Iper & Washer Switch
19 Clutch Switch........................................................Manual Transmission
19-1Clutch Switch........................................................E32 Gasoline E/G with Manual Transmission
20 Stop Lamp Switch
21 Outside Mirror Switch
22 Ignition Switch
23 Multi Function Switch
24 Multi Function Switch
25 Black Out Switch..................................................Black Out Lamp
26 Black out switch...................................................Black Out Lamp
27 Joint Connector (Tail)
28 Joint Connector (Ignition)
29 Cluster
30 Cluster .................................................................Automatic Transmission
31 Cluster
32 Cluster
33 4WD Switch..........................................................Except TOD
33-14WD Switch.......................................................... TOD
3 4 Hazard Switch
35 Ground 2
36 Pedal Module.......................................................Gasoline E/G with MSE ECU
37 Audio Switch
3 8 Immobilizer...........................................................Crypto Type, Gasoline E/G with MSE ECU or Diesel E/G
39 Ignition Switch
40 Multi Function Switch
4 1 STICS
4 2 STICS
4 3 REKES.................................................................Remote Keyless