Mitsubishi Montero Sport (2004+). Manual — part 616

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-29

Only overdrive clutch hydraulic
pressure is abnormal.

Malfunction of the oil seal D
Malfunction of the oil seal E
Malfunction of the oil seal F
Malfunction of the overdrive solenoid valve
Malfunction of the overdrive pressure control valve
Malfunction of the check ball
Clogged orifice
Incorrect valve body installation

Only low-reverse brake hydraulic
pressure is abnormal.

Malfunction of the oil seal I
Malfunction of the oil seal J
Malfunction of the oil seal P
Malfunction of the low-reverse solenoid valve
Malfunction of the low-reverse pressure control valve
Malfunction of the switch valve
Malfunction of the fail safe valve A
Malfunction of all the check ball
Clogged orifice
Incorrect valve body installation

Only second brake hydraulic pressure
is abnormal.

Malfunction of the oil seal G
Malfunction of the oil seal H
Malfunction of the oil seal O
Malfunction of the second solenoid valve
Malfunction of the second pressure control valve
Malfunction of the fail safe valve B
Clogged orifice
Incorrect valve body installation

Only torque converter pressure is
abnormal.

Clogged oil cooler
Malfunction of the oil seal N
Malfunction of the torque converter clutch solenoid valve
Malfunction of the torque converter clutch control valve
Malfunction of the torque converter clutch pressure control valve
Clogged orifice
Incorrect valve body installation

Pressure applied to element which
should not receive pressure.

Incorrect transmission control cable adjustment
Malfunction of the manual valve
Malfunction of the check ball
Incorrect valve body installation

SYMPTOM

PROBABLE CAUSE

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-30

OIL SEAL LAYOUT

AC100421AB

N A B C D E F G H I

J K

L M

Q

O

P

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-31

HYDRAULIC CIRCUIT

M1231103900131

PARKING AND NEUTRAL

1

2

3

4

5

6

6

6

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

R N

P

D
3
2
L

: LINE PRESSURE

: OIL PUMP SUCTION PRESSURE

: TORQUE CONVERTER CLUTCH
PRESSURE

: TORQUE CONVERTER AND LUBRICATION
PRESSURE

: TORQUE CONVERTER CLUTCH SOLENOID
VALVE PRESSURE

1. REVERSE

CLUTCH

2. LOW-REVERSE

BRAKE

3. SECOND

BRAKE

4. UNDERDRIVE

CLUTCH

5. OVERDRIVE

CLUTCH

6. ACCUMULATOR

7. CHECK

BALL

8. TORQUE

CONVERTER

CLUTCH

9. FAIL SAFE VALVE A

10. FAIL SAFE VALVE B

11. TORQUE CONVERTER CLUTCH CONTROL

VALVE

12. SWITCH VALVE

13. TRANSMISSION FLUID COOLER

14. LUBRICATION

15. LOW-REVERSE PRESSURE CONTROL VALVE

16. SECOND PRESSURE CONTROL VALVE

17. UNDERDRIVE PRESSURE CONTROL VALVE

18. OVERDRIVE PRESSURE CONTROL VALVE

19. TORQUE CONVERTER CLUTCH SOLENOID

VALVE

20. LOW-REVERSE SOLENOID VALVE

21. SECOND SOLENOID VALVE

22. UNDERDRIVE SOLENOID VALVE

23. OVERDRIVE SOLENOID VALVE

24. TORQUE CONVERTER PRESSURE

CONTROL VALVE

25. REGULATOR VALVE

26. MANUAL VALVE

27. OIL FILTER

28. OIL PUMP

29. OIL STRAINER

30. RELIEF VALVE

31. OIL PAN

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-32

1ST GEAR

1

2

3

4

5

6

6

6

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

R N

P

D
3
2
L

: LINE PRESSURE

: OIL PUMP SUCTION PRESSURE

: TORQUE CONVERTER CLUTCH
PRESSURE

: TORQUE CONVERTER AND LUBRICATION
PRESSURE

: TORQUE CONVERTER CLUTCH SOLENOID
VALVE PRESSURE

1. REVERSE

CLUTCH

2. LOW-REVERSE

BRAKE

3. SECOND

BRAKE

4. UNDERDRIVE

CLUTCH

5. OVERDRIVE

CLUTCH

6. ACCUMULATOR
7. CHECK

BALL

8. TORQUE

CONVERTER

CLUTCH

9. FAIL SAFE VALVE A
10. FAIL SAFE VALVE B
11. TORQUE CONVERTER CLUTCH CONTROL

VALVE

12.

SWITCH

VALVE

13. A/T FLUID COOLER
14.

LUBRICATION

15. LOW-REVERSE PRESSURE CONTROL VALVE
16. SECOND PRESSURE CONTROL VALVE

17. UNDERDRIVE PRESSURE CONTROL VALVE
18. OVERDRIVE PRESSURE CONTROL VALVE
19. TORQUE CONVERTER CLUTCH SOLENOID

VALVE

20. LOW-REVERSE SOLENOID VALVE
21.

SECOND

SOLENOID

VALVE

22. UNDERDRIVE SOLENOID VALVE
23. OVERDRIVE SOLENOID VALVE
24. TORQUE CONVERTER PRESSURE

CONTROL VALVE

25.

REGULATOR

VALVE

26.

MANUAL

VALVE

27.

OIL

FILTER

28.

OIL

PUMP

29.

OIL

STRAINER

30.

RELIEF

VALVE

31.

OIL

PAN