SsangYong Musso. Manual — part 474
AUTOMATIC TRANSMISSION 5A-73
Table 6.2.3 - Shift Quality Faults
Action
Check the resistance. Replace the inhibitor
switch as necessary.
Inspect and replace the sensor as necessary.
Inspect and adjust the band as necessary.
Inspect and replace the’0’rings as necessary.
Inspect, repair or replace S5 as necessary.
Inspect, repair or replace S1 or S4 as neces-
sary.
Inspect, repair or replace the BAR as neces-
sary.
Inspect and repair as necessary.
Inspect and clean CCCV.
Inspect, repair or replace as necessary.
Possible Cause
Faulty inhibitor switch.
Faulty throttle position sensor.
Incorrect front band adjustment.
Damaged front servo piston’0’rings.
Faulty or damaged variable pressure so-
lenoid (S5).
Faulty S1 or S4 solenoid.
Faulty band apply regulator valve (BAR).
Misassembled front servo return spring.
Jammed converter clutch control valve
(CCCV).
Faulty solenoid 7.
Symptom
Harsh 1-2 shift
stalls when Drive
or Reverse
selected Shudder
on Rolldown
5A-74 AUTOMATIC TRANSMISSION
Action
Inspect, repair C2 and adjust the linkage as neces-
sary.
Repair C2. Inspect, repair or replace S6 as neces-
sary.
Repair C2. Inspect, replace the sealing rings and/
or shaft as necessary.
Repair C2. Inspect, repair or replace the C2 piston
as necessary.
Inspect C4 and repair as necessary.
Inspect and adjust the C4 pack clearance as nec-
essary.
Repair C4. Inspect and replace the wave plate as
necessary.
Repair C4. Inspect and realign the wave plate as
necessary.
Repair C4. Inspect and realign the sealing rings
and/or shaft as necessary.
Repair C4. Inspect and refit the OWC as neces-
sary.
Repair C4. Inspect and replace the C2 piston as
necessary.
Repair C4. Inspect and refit the ball as necessary.
Inspect and repair B1 and replace the spring as
necessary.
Replace sealing ring.
Repair B1. Refit the ball as necessary.
Inspect and repair C1 and replace the spring.
Repair C1. Inspect and replace the sealing tongs
and/or shaft as necessary.
Repair C1. Inspect and replace the C1 piston as
necessary.
Repair C1. Inspect and refit the capsule as neces-
sary.
Repair C1. Inspect and refit the valve as neces-
sary.
Repair C1. Inspect and replace the ball as neces-
sary.
Inspect and adjust the band as necessary.
Inspect and refit the ball as necessary.
Inspect and replace the ‘O’ ring as necessary.
Inspect and refit the valve as necessary.
Inspect and replace the ‘O’ ring as necessary.
Inspect and refit the valve as necessary.
Possible Cause
T-bar linkage out of adjustment.
56 foiled - stuck low.
Overdrive/output shaft sealing rings damaged.
C2 piston cracked.
Incorrect C4 pack clearance.
C4 wave plate broken.
C4 wave plate not lined up properly.
Overdrive or output shaft sealing rings dam-
aged.
3-4 one way clutch (OWC) in backwards.
C2 piston cracked.
Over-run clutch (OC)/low-1st ball misplaced.
B1R spring broken.
Input shaft sealing ring cut.
C1/B1R ball misplaced.
B1R spring left out.
Overdrive or input shaft sealing rings damaged.
C1 piston cracked.
Ball capsule jammed.
4-3 sequence valve in backwards.
Clutch apply feed (CAF)/B1R ball left out.
Rear band incorrectly adjusted or damaged.
Reverse-low/first ball misplaced.
Input shaft ‘O’ ring missing or damaged.
Converter clutch regulator valve in backwards.
Input shaft ‘O’ ring missing or damaged.
C1 bias valve in backwards.
Symptom
C2 burnt
C4 burnt
B1 burnt
C1 burnt
Slips in reverse -
no manual 1st
Firm converter
lock or unlock
No lock up at light
throttle
Table 6.2.4 - After Teardown Faults
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.
5A-76 AUTOMATIC TRANSMISSION
Action
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check voltage between terminal 27 and 29 of TCU,
-
Standard value : 0.2 - 4.7V
!
Check TPS.
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check engine speed sensor.
!
Check resistance between terminal 8 and 24 of TCU (when the
connector is disconnected).
-
Standard value : 1 .9 - 0.2 k
Ω
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check vehicle speed sensor.
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check engine speed sensor.
!
Check inhibitor switch resistance between terminal 34 and 37 of
TCU(when the connector is disconnected).
- Standard value : 1st gear - 4 - 4.4 k
Ω
2nd gear - 4,8 - 2.2 k
Ω
3rd gear - 3 - 3.4 k
Ω
D gear - 4.5 - 4.g k
Ω
N gear - 6.8 - 7.2 k
Ω
R gear - 10.8 -11.2 k
Ω
P gear - 18.6 - 19 k
Ω
!
Check voltage between terminal 31 and 37 of TCU.
-
Standard value : 0-5V(P,R,N,D,L)
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check mode switch.
!
Check condition between terminal 1 and 13 of TCU.
Winter mode :12V, Normal mode : Open status, Power mode : 0V
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check voltage between terminal 32 and 38 of TCU.
-
Standard value : 0-5V
!
Check oil temperature sensor.
!
Check cable for open / short.
!
Check connection of other connectors.
!
Check battery condition.
!
Check alternator.
Possible Cause
Throttle position sensor
Engine RPM
Vehicle speed
Shift lever
W, E, P mode switch
T/M oil temperature
Battery voltage
Symptom
P1702
P1703
P1704
P4705
P1706
P1707
P1708
Self-diagnosis List
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