1998 SSANGYONG MUSSO Workshop Repair Manual

5D2-18 TRANSFER CASE (TOD)
CODING
Coding Tool
SCANNER
Connection of Coding Tool
Construct SCANNER into diagnosis connector (20 pins) near fuse box in engine room as below figure.
1 Diagnosis Connector2 SCANNER
Notice
Coding ; An input activity of data for the proper
performance by matching specification, devices and
system with control unit.

TRANSFER CASE (TOD) 5D2-19
Classification
Engine Type
Transmission/Vehicle Type
Axle Ratio
Tire Size
Coding Required
1. Replacement of TOD control unit.
2. Adjustment by input error.
3. Change of tire specification.
Items
Gasoline Engine (E32)
661 Diesel Engine
661LA Diesel Turbo Engine
662 Diesel Engine
662LA Diesel Turbo Engine
Manual Transmission
Automatic Transmission
MUSSO
KORANDO
3.73
4.55
4.89
5.38
5.86
P215
P235
P255
P275
Coding Method
1. Check and record engine type, axle ratio and tire size.
2. Ignition “OFF”.
3. Connect SCANNER with diagnosis connector in engine
room.
4. Ignition “ON”.
5. Read the current memorized specification in TOD control
unit.
6. Compare memorized specification with the checked record.
If not matched, perform a coding.
7. Read again memorized coding specification in TOD control
unit for confirmation of coding.
8. Check coding specification whether it matches with vehicle
or not. If not, perform a coding again.
Coding items

5D2-20 TRANSFER CASE (TOD)
ELIMINATE THE MEMORIZED FAULT
CODE
When diagnose by SCANNER, it is required that you make
adequate service on defects against all fault codes. And then
you should delete the memorized fault codes in TOD control
unit using SCANNER as follows;
1. Connect SCANNER with diagnosis connector.
2. Select “trouble code clear” in SCANNER.
3. In “trouble code clear” screen, press “enter” key to erase
the fault code.
4. Confirm deletion of fault code and, if not, repeat 2.-3.
process.

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

5D2-24 TRANSFER CASE (TOD)
Ye s
No B4
B5
Ye s
No
B6
4.75-5.25Vdc
Ye s
No
B70.3-0.9Vdc
4.6-4.9Vdc
Ye s
No
4.6-4.9Vdc
0.3-0.9Vdc
Ye s
No Test Stage / Contents
Result
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check CAN communication line by diagnosis of E/G ECU.
1. Diagnose E/G ECU with SCANNER.
2. Does it display on fault code “27” ?
Check power supply and signal output on throttle valve
position sensor (potentiometer) 1,2.
1. Diagnose E/G ECU with SCANNER.
- Fault codes : 104, 105, 108, 109, 119, 185
Does it display on above code ?
Check power supply (5V) of throttle valve position sensor.
1. Ignition “ON”
2. Measure voltage between pin 112(+) and 84(-) keeping
coupling connection status using multi - tester.
- Specified value
- Measured value is within specified range ?
Check output signal from throttle position sensor 1 and 2.
1. Keep E/G idle status.
2. Measure output voltage between pin 87 (+) and 84 (-)
keeping E/G ECU coupling connection status using multi-
tester. (potentiometer 1)
- Specified value min. acc. Pedal
max. acc. Pedal
- Measured value is within specified range ?
3. Measure output voltage between pin 85 (+) and 84 (-)
keeping E/G ECU coupling connection status using multi-
tester. (potentiometer 2)
- Specified value min. acc. Pedal
max. acc. Pedal
- Measured value is within specified range ?
Replace TOD control
unit
Replace throttle body
actuator or check
cable Perform B1, B2, B3
stages
Perform B5 stage
Perform B6 stage
Replace TOD control
unit or perform A1-
A5 stages
Perform B7 stage
Replace E/G ECU or
perform B1-2 stage
after checking cable.
Perform B7-3 stage
Replace throttle body
actuator or check
cable.

TRANSFER CASE (TOD) 5D2-25
Error in electro - magnetic clutch : fault code
“1721”, “1722”
lPhenomenon
1. Upon diagnosis by SCAN-100, it displays on fault
codes “1721,1722”.
lCause
1. Defect in electro - magnetic clutch
2. Defect in connector or wiring
- Open or short from EMC to the supply : 1721
- Short EMC to ground : 1722
Ye s
No
C1
Ye s
No Ye s
No
11-15Vdc
Ye s
No
C2
Ye s
No
Test Stage / ContentsResult
Stage Test Contents and ProcedureSpecified Value
/Yes/NoCountermeasure
Check relevant connector connection status.
1. Check relevant connector connection status with TOD
control unit.
- Does it connect correctly ?
2. Check connection status of speed sensor and clutch
coil connector (7 pin) in transfer case.
- Does it connect correctly ?
3. In case of bad connection, connect it correctly then
perform the follows :
a. Delete the memorized fault code in control unit with
Scan - 100.
b. Ignition “OFF”.
c. Ignition “ON”.
d. Diagnose by SCAN-100
- Does it display on fault codes “1721,1722” ?
Check supply voltage into electro-magnetic clutch.
1. Ignition “ON”
2. Measure voltage between pin 4/19(+) and 17/18(-) in
TOD control unit connector.
- Specified value
- Measured value is within specified range ?
3. If the specified value would not be measured, perform
the follows :
a. Check battery voltage (charging condition)
b. Check open circuit on No.13 fuse (20A)
c. Check relevant wires.
- Is the above 3a, 3b, 3c normal ?Perform C1-2 stage
Perform C1-3 stage
Perform C2 stage
Normal system Perform C2 stage
Perform C1-3 stage
Perform C3 stage
Perform C2-3 stage
Perform C3 stage
lCharging/
Replace battery
lReplace fuse
lRepair wires