Nissan Pathfinder (2010 year). Manual — part 611
TM-16
< FUNCTION DIAGNOSIS >
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
2010 Pathfinder
A/T CONTROL SYSTEM
TM-17
< FUNCTION DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
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
2010 Pathfinder
TM-18
< FUNCTION DIAGNOSIS >
A/T CONTROL SYSTEM
“D
3
” Position (With Manual Mode) / "D
3
" and “3
3
” Positions (Without Manual Mode)
• The front brake fastens the front sun gear.
• The direct clutch is coupled, and the rear carrier and rear sun gear are connected.
• The high and low reverse clutch is coupled and the mid sun gear and rear sun gear are connected.
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
SCIA1515E
2010 Pathfinder
A/T CONTROL SYSTEM
TM-19
< FUNCTION DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
“D
4
”
and
“M
4
”
Positions (With Manual Mode) / "D
4
" Position (Without Manual Mode)
• The direct clutch is coupled, and the rear carrier and rear sun gear are connected.
• The high and low reverse clutch is coupled and the mid sun gear and rear sun gear are connected.
• The input clutch is coupled and the front internal gear and mid internal gear are connected.
• The drive power is conveyed to the front internal gear, mid internal gear, and rear carrier and the three plan-
etary gears rotate forward as one unit.
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
SCIA1516E
2010 Pathfinder
TM-20
< FUNCTION DIAGNOSIS >
A/T CONTROL SYSTEM
“D
5
” and "M
5
" Positions (With Manual Mode) / "D
5
" Position (Without Manual Mode)
• The front brake fastens the front sun gear.
• The input clutch is coupled and the front internal gear and mid internal gear are connected.
• The high and low reverse clutch is coupled and the mid sun gear and rear sun gear are connected.
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
SCIA1517E
2010 Pathfinder
A/T CONTROL SYSTEM
TM-21
< FUNCTION DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
“R” Position
• The front brake fastens the front sun gear.
• The high and low reverse clutch is coupled, and the mid sun gear and rear sun gear are connected.
• The reverse brake fastens the rear carrier.
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
SCIA4984E
2010 Pathfinder
TM-22
< FUNCTION DIAGNOSIS >
A/T CONTROL SYSTEM
TCM Function
INFOID:0000000005257949
The function of the TCM is to:
• Receive input signals sent from various switches and sensors.
• Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
• Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE (WITHOUT MANUAL MODE)
The A/T senses vehicle operating conditions through various sensors or signals. It always controls the opti-
mum shift position and reduces shifting and lock-up shocks.
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
SCIA1519E
2010 Pathfinder
A/T CONTROL SYSTEM
TM-23
< FUNCTION DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
CONTROL SYSTEM DIAGRAM (WITHOUT MANUAL MODE)
CONTROL SYSTEM OUTLINE (WITH MANUAL MODE)
The A/T senses vehicle operating conditions through various sensors or signals. It always controls the opti-
mum shift position and reduces shifting and lock-up shocks.
SENSORS (or SIGNALS)
⇒
TCM
⇒
ACTUATORS
Transmission range switch
Accelerator pedal position sensor
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Output speed sensor
Vehicle speed signal
Stop lamp switch signal
Input speed sensor
1st position switch signal
Overdrive control switch signal
ATF pressure switch signal
Shift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-III communication
line
Duet-EA control
CAN system
Input clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch sole-
noid valve
Low coast brake solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
O/D OFF indicator lamp
Starter relay
Back-up lamp relay
JSDIA1430GB
SENSORS (or SIGNALS)
⇒
TCM
⇒
ACTUATORS
Transmission range switch
Accelerator pedal position sensor
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Output speed sensor
Vehicle speed signal
Manual mode switch signal
Stop lamp switch signal
Input speed sensor
ATF pressure switch signal
Shift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-III communication
line
Duet-EA control
CAN system
Input clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch sole-
noid valve
Low coast brake solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
A/T CHECK indicator lamp
Starter relay
Back-up lamp relay
2010 Pathfinder
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