2003 NISSAN X-TRAIL clutch

OVERALL SYSTEM
AT-23
D
E
F
G
H
I
J
K
L
MA
B
AT

CLUTCH AND BAND CHART

*1: Operates when overdrive control switch is set in “OFF” position.

*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not con-
tract because oil pressure area on the “release” side is greater than that on the “apply” side.

*3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts.

*4: A/T will not shift to 4th when overdrive control switch is set in “OFF” position.

: Operates.

A: Operates when throttle opening is less than 3/16, activating engine brake.

B: Operates during “progressive” acceleration.

C: Operates but does not affect power transmission.

D: Operates when throttle opening is less than 3/16, but does not affect engine brake. Shift positionRever
se
clutch
5High
clutch
6For-
ward
clutch
15Over-
run
clutch
17Band servo
Forward
one-way
clutch
16Low
one-
way
clutch
18Low &
revers
e
brake
19Lock-
upRemarks
2nd
apply3rd
releas
e4th
apply
PPA R K
POSITION
RREVERSE
POSITION
NNEUTRAL
POSITION
D*41st *1D B B
Automatic
shift
1 ⇔ 2 ⇔ 3 ⇔
4 2nd *1A B
3rd *1A *2C C B
*1
4th C *3C C
21stBB
Automatic
shift
1 ⇔ 2⇐3 2ndB
3rd *2C C B
11stB
Locks (held
stationary) in
1st speed
1 ⇐ 2⇐3 2ndB
3rd *2C C B

AT-24
OVERALL SYSTEM

POWER TRANSMISSION
“N” and “P” Positions

“N” position
Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.

“P” position
Similar to the “N” position, the clutches do not operate. The parking pawl engages with the parking gear to
mechanically hold the output shaft so that the power train is locked.
SAT991I

OVERALL SYSTEM
AT-25
D
E
F
G
H
I
J
K
L
MA
B
AT

“11 ” Position

Forward clutch

Forward one-way clutch

Overrun clutch

Low & reverse brakeAs overrun clutch engages, rear internal gear is locked by the operation of low and
reverse brake.
This is different from that of D
1 and 21 .
Engine brake Overrun clutch always engages, therefore engine brake can be obtained when deceler-
ating.
SCIA1816E

AT-26
OVERALL SYSTEM

“D1 ” and “21 ” Positions

Forward one-way clutch

Forward clutch

Low one-way clutchRear internal gear is locked to rotate counterclockwise because of the functioning of
these three clutches.
Overrun clutch
engagement conditions
(Engine brake)D
1 : Overdrive control switch “OFF” and throttle opening is less than 3/16
2
1 : Always engaged
At D
1 and 21 positions, engine brake is not activated due to free turning of low one-
way clutch.
SAT377J

OVERALL SYSTEM
AT-27
D
E
F
G
H
I
J
K
L
MA
B
AT

“D2 ”, “22 ” and “12 ” Positions

Forward clutch

Forward one-way
clutch

Brake bandRear sun gear drives rear planetary carrier and combined front internal gear. Front internal gear now
rotates around front sun gear accompanying front planetary carrier.
As front planetary carrier transfers the power to rear internal gear through forward clutch and forward one-
way clutch, this rotation of rear internal gear increases the speed of rear planetary carrier compared with
that of the 1st speed.
Overrun clutch
engagement conditionsD
2 : Overdrive control switch “OFF” and throttle opening is less than 3/16
2
2 and 12 : Always engaged
SAT378J

AT-28
OVERALL SYSTEM

“D3 ”, “23 ” and “13 ” Positions

High clutch

Forward clutch

Forward one-way
clutchInput power is transmitted to front planetary carrier through high clutch. And front planetary carrier is con-
nected to rear internal gear by operation of forward clutch and forward one-way clutch.
This rear internal gear rotation and another input (the rear sun gear) accompany rear planetary carrier to
turn at the same speed.
Overrun clutch
engagement conditionsD
3 : Overdrive control switch “OFF” and throttle opening is less than 3/16
2
3 and 13 : Always engaged
SAT379J

OVERALL SYSTEM
AT-29
D
E
F
G
H
I
J
K
L
MA
B
AT

“D4 ” (OD) Position

High clutch

Brake band

Forward clutch (Does not affect power
transmission)Input power is transmitted to front carrier through high clutch.
This front carrier turns around the sun gear which is fixed by brake band and makes
front internal gear (output) turn faster.
Engine brakeAt D
4 position, there is no one-way clutch in the power transmission line and engine
brake can be obtained when decelerating.
SAT380J

AT-30
OVERALL SYSTEM

“R” Position

Reverse clutch

Low & reverse brakeFront planetary carrier is stationary because of the operation of low and reverse brake.
Input power is transmitted to front sun gear through reverse clutch, which drives front
internal gear in the opposite direction.
Engine brakeAs there is no one-way clutch in the power transmission line, engine brake can be
obtained when decelerating.
SAT381J