Nissan Pathfinder (2011 year). Manual - part 583

TM-10

< SYSTEM DESCRIPTION >

A/T CONTROL SYSTEM

4WD models

Shift Mechanism

INFOID:0000000006244662

The automatic transmission uses compact triple planetary gear systems to improve power-transmission effi-

ciency, simplify construction and reduce weight.

It also employs an optimum shift control and super wide gear ratios. They improve starting performance and

acceleration during medium and high-speed operation.

CONSTRUCTION 

SCIA5268E

1.

Front planetary gear

2.

Mid planetary gear

3.

Rear planetary gear

4.

Direct clutch

5.

High and low reverse clutch

6.

Reverse brake

7.

Drum support

8.

Forward brake

9.

Low coast brake

10. Input shaft

11. Torque converter

12. Oil pump

13. Front brake

14. 3rd one-way clutch

15. Input clutch

16. 1st one-way clutch

17. Control valve with TCM

18. Forward one-way clutch

19. Adapter case

20. Output shaft

2011 Pathfinder

A/T CONTROL SYSTEM

TM-11

< SYSTEM DESCRIPTION >

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

FUNCTION OF CLUTCH AND BRAKE 

CLUTCH AND BAND CHART (Without Manual Mode)

1.

Front brake

 2.

Input clutch

3.

Direct clutch

4.

High and low reverse clutch

5.

Reverse brake

6.

Forward brake

7.

Low coast brake

8.

1st one-way clutch

9.

Forward one-way clutch

10. 3rd one-way clutch

11. Front sun gear

12. Input shaft

13. Mid internal gear

14. Front internal gear

15. Rear carrier

16. Rear sun gear

17. Mid sun gear

18. Front carrier

19. Mid carrier

20. Rear internal gear

21. Output shaft

22. Parking gear

23. Parking pawl

PCIA0002J

Name of the Part

Abbreviation

 Function

Front brake (1)

FR/B

Fastens the front sun gear (11).

Input clutch (2)

I/C

Connects the input shaft (12), the front internal gear (14) and the mid internal 
gear (13).

Direct clutch (3)

D/C

Connects the rear carrier (15) and the rear sun gear (16).

High and low reverse clutch (4)

HLR/C

Connects the mid sun gear (17) and the rear sun gear (16).

Reverse brake (5)

R/B

Fastens the rear carrier (15).

Forward brake (6)

Fwd/B

Fastens the mid sun gear (17).

Low coast brake (7) 

LC/B

Fastens the mid sun gear (17).

1st one-way clutch (8)

1st WOC

Allows the rear sun gear (16) to turn freely forward relative to the mid sun gear 
(17) but fastens it for reverse rotation.

Forward one-way clutch (9)

Fwd OWC

Allows the mid sun gear (17) to turn freely in the forward direction but fastens it 
for reverse rotation.

3rd one-way clutch (10)

3rd OWC

Allows the front sun gear (11) to turn freely in the forward direction but fastens 
it for reverse rotation.

Shift position

I/C

HLR/C

D/C

R/B

FR/B

LC/B 

Fwd/B

1st 

OWC

Fwd 

OWC

3rd 

OWC

Remarks

P

PARK POSITION

R

REVERSE POSI-

TION

2011 Pathfinder

TM-12

< SYSTEM DESCRIPTION >

A/T CONTROL SYSTEM

•

—Operates

•

—Operates during “progressive” acceleration.

•

—Operates and effects power transmission while coasting.

•

—Line pressure is applied but does not affect power transmission.

•

—Operates under conditions shown in HLR/C Operating Condition

•

—Operates under conditions shown in LC/B Operating Condition. Delay control is applied during D (4,3,2,1) 

⇒

N shift.

• *1: A/T will not shift to 5th when overdrive control switch is set in “OFF” position.

CLUTCH AND BAND CHART (With Manual Mode)

N

NEUTRAL POSI-

TION

D*1

1st

Automatic shift

1

⇔

2

⇔

3

⇔

4

⇔

5

2nd

3rd

4th

5th

3

1st

Automatic shift

1

⇔

2

⇔

3

⇐

4

2nd

3rd 

4th

2

1st

Automatic shift

1

⇔

2

⇐

3

⇐

4

2nd

3rd

4th

1

1st

Locks (held sta-

tionary in 1st 

gear)

1

⇐

2

⇐

3

⇐

4

2nd

3rd

4th

Shift position

I/C

HLR/C

D/C

R/B

FR/B

LC/B 

Fwd/B

1st 

OWC

Fwd 

OWC

3rd 

OWC

Remarks

SCIA5642E

Shift position

I/C

HLR/C

D/C

R/B

FR/B

LC/B

Fwd/B

1st 

OWC

Fwd 

OWC

3rd 

OWC

Remarks

P

PARK POSITION

R

REVERSE PO-

SITION

2011 Pathfinder

A/T CONTROL SYSTEM

TM-13

< SYSTEM DESCRIPTION >

C

E

F

G

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K

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M

A

B

TM

N

O

P

•

—Operates

•

—Operates during “progressive” acceleration.

•

—Operates and effects power transmission while coasting.

•

—Line pressure is applied but does not affect power transmission.

•

—Operates under conditions shown in HLR/C Operating Condition

•

—Operates under conditions shown in LC/B Operating Condition. Delay control is applied during D (4,3,2,1) 

⇒

N shift.

POWER TRANSMISSION 

“N” Position

N

NEUTRAL POSI-

TION

D

1st

Automatic shift

1

⇔

2

⇔

3

⇔

4

⇔

5

2nd

3rd

4th

5th

M5

1st

Automatic shift

1

⇔

2

⇔

3

⇔

4

⇔

5

2nd

3rd

4th

5th

M4

1st

Automatic shift

1

⇔

2

⇔

3

⇔

4

2nd

3rd

4th

M3

1st

Automatic shift

1

⇔

2

⇔

3

2nd

3rd

M2

1st

Automatic shift

1

⇔

2

2nd

M1

1st

Locks (held sta-

tionary in 1GR)

2nd

Shift position

I/C

HLR/C

D/C

R/B

FR/B

LC/B

Fwd/B

1st 

OWC

Fwd 

OWC

3rd 

OWC

Remarks

SCIA5642E

2011 Pathfinder

TM-14

< SYSTEM DESCRIPTION >

A/T CONTROL SYSTEM

Since both the forward brake and the reverse brake are released, torque from the input shaft drive is not trans-

mitted to the output shaft.

“P” Position

• The same as for the “N” position, both the forward brake and the reverse brake are released, so torque from

the input shaft drive is not transmitted to the output shaft.

• The parking pawl linked with the select lever meshes with the parking gear and fastens the output shaft

mechanically.

“D1”Position (With Manual Mode) / "D

1

", “3

1

" and “2

1

” Positions (Without Manual Mode)

• The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

• The 1st one-way clutch regulates reverse rotation of the rear sun gear.

• The 3rd one-way clutch regulates reverse rotation of the front sun gear.

• During deceleration, the mid sun gear turns forward, so the forward one-way clutch idles and the engine

brake is not activated.

1.

Front brake

2.

Input clutch

3.

Direct clutch

4.

High and low reverse clutch

5.

Reverse brake

6.

Forward brake

7.

Low coast brake

8.

1st one-way clutch

9.

Forward one-way clutch

10. 3rd one-way clutch

11. Front sun gear

12. Input shaft

13. Mid internal gear

14. Front internal gear

15. Rear carrier

16. Rear sun gear

17. Mid sun gear

18. Front carrier

19. Mid carrier

20. Rear internal gear

21. Output shaft

22. Parking gear

23. Parking pawl

PCIA0003J

2011 Pathfinder

A/T CONTROL SYSTEM

TM-15

< SYSTEM DESCRIPTION >

C

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B

TM

N

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P

“M1” Position (With Manual Mode) / "1

1

" Position (Without Manual Mode)

• The front brake fastens the front sun gear.

• The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

• High and low reverse clutch connects the rear sun gear and the mid sun gear.

• The low coast brake fastens the mid sun gear.

• During deceleration, the low coast brake regulates forward rotation of the mid sun gear and the engine brake

functions.

 1.

Front brake

2.

Input clutch

3.

Direct clutch

4.

High and low reverse clutch

5.

Reverse brake

6.

Forward brake

7.

Low coast brake

8.

1st one-way clutch

9.

Forward one-way clutch

10. 3rd one-way clutch

11. Front sun gear

12. Input shaft

13. Mid internal gear

14. Front internal gear

15. Rear carrier

16. Rear sun gear

17. Mid sun gear

18. Front carrier

19. Mid carrier

20. Rear internal gear

21. Output shaft

22. Parking gear

23. Parking pawl

SCIA1512E

2011 Pathfinder

TM-16

< SYSTEM DESCRIPTION >

A/T CONTROL SYSTEM

“D

2

” Position (with Manual Mode) / "D

2

" and “3

2

” Positions (Without Manual Mode)

• The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

• The 3rd one-way clutch regulates reverse rotation of the front sun gear.

• The direct clutch is coupled and the rear carrier and rear sun gear are connected.

• During deceleration, the mid sun gear turns forward, so the forward one-way clutch idles and engine brake is

not activated.

1.

Front brake

2.

Input clutch

3.

Direct clutch

4.

High and low reverse clutch

5.

Reverse brake

6.

Forward brake

7.

Low coast brake

8.

1st one-way clutch

9.

Forward one-way clutch

10. 3rd one-way clutch

11. Front sun gear

12. Input shaft

13. Mid internal gear

14. Front internal gear

15. Rear carrier

16. Rear sun gear

17. Mid sun gear

18. Front carrier

19. Mid carrier

20. Rear internal gear

21. Output shaft

22. Parking gear

23. Parking pawl

SCIA1513E

2011 Pathfinder

A/T CONTROL SYSTEM

TM-17

< SYSTEM DESCRIPTION >

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E

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B

TM

N

O

P

“M

2

” Position (With Manual Mode) / "2

2

" and “1

2

” Positions (Without Manual Mode)

• The front brake fastens the front sun gear.

• The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

• The direct clutch is coupled, and the rear carrier and rear sun gear are connected.

• The low coast brake fastens the mid sun gear.

• During deceleration, the low coast brake regulates forward rotation of the mid sun gear and the engine brake

functions.

1.

Front brake

2.

Input clutch

3.

Direct clutch

4.

High and low reverse clutch

5.

Reverse brake

6.

Forward brake

7.

Low coast brake

8.

1st one-way clutch

9.

Forward one-way clutch

10. 3rd one-way clutch

11. Front sun gear

12. Input shaft

13. Mid internal gear

14. Front internal gear

15. Rear carrier

16. Rear sun gear

17. Mid sun gear

18. Front carrier

19. Mid carrier

20. Rear internal gear

21. Output shaft

22. Parking gear

23. Parking pawl

SCIA1514E

2011 Pathfinder