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