ESP SSANGYONG MUSSO 1998 Workshop Owner's Guide

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.

5D2-32 TRANSFER CASE (TOD)
lPhenomenon
“4L” lamp on cluster continuous blinking and can not go off,
when operated 4H/4L switch as 4L« 4H.
lCause
Shifting failure.
1. Stop the vehicle
2. Return the 4H/4L switch to first position (before
operating).
- The blinking of 4L indicator lamp is stopped.
Note
If the first position before switch operating is ‘4L’,
lamp goes on after stopping blink, otherwise it
is ‘4H’ lamp goes off.
3. Reoperate 4H/4L switch to 4H«4L on the below
condition.
• Positioned Auto T/M to neutral.
• At this time, keep the neutral position for 2 second.
• Stop the vehicle (The R.P.M of front & Rear propeller
shaft is below 80).
4. ‘4L’ lamp blinks based on 0.3 second.
5. When the shifting is engaged, the blinking of ‘4L’ lamp
is stopped.
-4H®4L : goes on ‘4L’ lamp
-4L®4H : goes on ‘4L’ lamp
6. When the ‘4L’ indicator lamp continuous blinking,
repositioned to first position and diagnose the system
and then fix it.Ye s
No
G1
Ye s
No Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Perform 2 stage
Diagnose TOD
control unit
Normal system
Perform system test
Auto T/N positioned
to neutral
Check/Replace the
relay

TRANSFER CASE (TOD) 5D2-33
9 - 16 Vdc
6 - 16 Vdc
2 mA
1 A
7 A
20 A
Removal & Installation Procedure
1. Turn the ignition switch to "OFF" position.
2. Remove 30 pin connector from TOD control unit.
3. Unscrew 2 bolts (1).
Installation Notice
1 Bolt (M6 x 16, 2pieces)................ 9-11 Nm
2 TOD control unit
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
TOD CONTROL UNIT
TOD Electric Characteristics
Voltage
Parasitic Current
(Under max. operation Voltage)
Max. Operation Current
(Under max. operation Voltage)Normal Operation Range
CAN communication Operation Range
Ignition “OFF”
Ignition “ON”
Motor “OFF”
Motor “ON”
4. Installation should follow the removal procedure in the
reverse order.
Notice
When replace TOD control unit, it is required to make a
coding correspondent with vehicle specification.
Tightening Torque 9 - 11 Nm