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Daewoo Musso. Manual - part 307

5D2-30 TRANSFER CASE (TOD)

Yes

Test Stage / Contents

Result

Stage

Test Contents and Procedure

Specified Value

/Yes/No

Countermeasure

Check the wiring of shift motor whether it is shorted or not.

1. Turn off the ignition switch.
2. Detach the 30pin connector from TOD control unit
3. Perform short test between the wiring connector No.1/

No.14 and No.2/No.5.
- Is there resistance of 0

4. Perform the short test between No.1/No.14 Connector

and body, No2/No.15 connector and body.
- Is there resistance of 0

5. Execute E1 stage to check whether wiring is shorted

between Hi-Low motor and LOW-HI motor.
- Is the provided voltage proper ?

Check the resistance of shift motor

1. Turn off the ignition switch.
2. Measure the resistance between No.1/No.14 and No.2/

No.15 connector after detaching 30pin connector of TOD
control unit Or, check the resistance between No.G and
No.B after detaching motor connector of T/C side.
- Specified value
- Measured value is within specified range ?

Execute the test after detaching shift motor, when the fault
is not solved after executing E1~E4 stage.

1. Detach the motor connector from T/C.
2. Remove the shift motor.
3. Connect motor connector with the removed shift motor.
4. Operate the 4H/4L switch.

- Does motor rotate ?

Hi-Low motor and
Lo-Hi wiring are
shorted each other.
Repair or replace.
Perform E3-4 stage.

Related wiring is
shorted with ground.
Repair or replace.
Perform E3-5 stage.

Perform E4 stage.
Wiring is shorted.
Repair or replace.

The defective T/C or
perform E5 stage.
Replace the shift
motor.

Check and fix due to
the defective T/C
ass’y.
Replace the motor
or delete fault code
and rediagnosis
system.

TRANSFER CASE (TOD) 5D2-31

Position incoder and position 1,2,3,4 malfunction
:Fault code®1750,1751,1752,1753, 1754

Phenomenon

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.

Cause

The portion of position incoder malfunction, each wiring is
shorted with ground.

Yes

Test Stage / Contents

Result

Stage

Test Contents and Procedure

Specified Value

/Yes/No

Countermeasure

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 0

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)

Phenomenon

“4L” lamp on cluster continuous blinking and can not go off,
when operated 4H/4L switch as 4L« 4H.

Cause

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.

Yes

Test Stage / Contents

Result

Stage

Test Contents and Procedure

Specified Value

/Yes/No

Countermeasure

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

Content .. 305 306 307 308 ..