2003 NISSAN X-TRAIL clutch

AT-532
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)

For 85X64 model
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
AccumulatorECS00F1V
O-RING
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.PartsItem
Part No.* Free length Outer diameter
Upper body7 Pilot valve spring 31742-3AX03 38.98 (1.535) 8.9 (0.350)
35 1-2 accumulator valve spring 31742-3AX00 20.5 (0.807) 6.95 (0.274)
10 1-2 accumulator piston spring 31742-3AX08 55.26 (2.176) 19.6 (0.772)
17 1st reducing valve spring 31742-80X05 27.0 (1.063) 7.0 (0.276)
19 3-2 timing valve spring 31736-01X00 23.29 (0.917) 6.65 (0.262)
24 Overrun clutch reducing valve spring 31742-80X15 37.5 (1.476) 6.9 (0.272)
26 Torque converter relief valve spring 31742-80X07 31.0 (1.220) 9.0 (0.354)
31 Torque converter clutch control valve spring 31742-85X00 56.98 (2.243) 6.5 (0.256)
3 Cooler check valve spring 31742-85X01 29.4 (1.157) 6.0 (0.236)
Lower body11 Pressure regulator valve spring 31742-80X13 45.0 (1.772) 15.0 (0.591)
16 Overrun clutch control valve spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
20 Accumulator control valve spring 31742-80X02 22.0 (0.866) 6.5 (0.256)
25 Shift valve A spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
30 Shuttle valve spring 31762-41X04 51.0 (2.008) 5.65 (0.222)
32 Shift valve B spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
2 Pressure modifier piston spring 31742-41X15 30.5 (1.201) 9.8 (0.386)
6 Pressure modifier valve spring 31742-80X16 32.0 (1.260) 6.9 (0.272)
— Oil cooler relief valve spring 31872-31X00 17.02 (0.670) 8.0 (0.315)
Accumulator Part No.*Inner diameter
(Small)Part No.*Inner diameter
(Large)
Servo release accumulator 31526 41X03 26.9 (1.059) 31526 41X02 44.2 (1.740)
N-D accumulator 31526 31X08 34.6 (1.362) 31672 21X00 39.4 (1.551)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-533
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

RETURN SPRING
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Clutch and BrakesECS00F1W
REVERSE CLUTCH
*: Always check with the Parts Department for the latest parts information.
HIGH CLUTCH
*: Always check with the Parts Department for the latest parts information.
FORWARD CLUTCH
Accumulator Part number* Free length Outer diameter
Servo release accumulator 31605-80X00 52.5 (2.067) 20.1 (0.791)
N-D accumulator 31605-31X15 43.5 (1.713) 28.0 (1.102)
Model code number85X23, 85X64
Number of drive plates2
Number of driven plates2
Drive plate thickness mm (in)Standard 1.6 (0.063)
Wear limit 1.4 (0.055)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 0.5 - 0.8 (0.020 - 0.031)
Wear limit 1.2 (0.047)
Thickness of retaining platesThickness mm (in) Part number*
6.6 (0.260)
6.8 (0.268)
7.0 (0.276)
7.2 (0.283)
7.4 (0.291)
7.6 (0.299)
7.8 (0.307)31537-80X05
31537-80X06
31537-80X07
31537-80X08
31537-80X09
31537-80X20
31537-80X21
Model code number85X23, 85X64
Number of drive plates3
Number of driven plates
7*
1 + 1*2
Drive plate
thickness mm (in)Standard 1.6 (0.063)
Wear limit 1.4 (0.055)
Driven plate
thickness mm (in)*1 Standard 1.4 (0.055)
*2 Standard 2.0 (0.079)
Clearance mm (in)Standard 1.8 - 2.2 (0.071 - 0.087)
Wear limit 2.8 (0.110)
Thickness of retaining platesThickness mm (in) Part number*
3.2 (0.126)
3.4 (0.134)
3.6 (0.142)
3.8 (0.150)
4.0 (0.157)31537-81X11
31537-81X12
31537-81X13
31537-81X14
31537-81X15
Model code number85X23
Number of drive plates4
Number of driven plates4
Drive plate thickness mm (in)Standard 1.6 (0.063)
Wear limit 1.4 (0.055)

AT-534
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)

*: Always check with the Parts Department for the latest parts information.
*: Always check with the Parts Department for the latest parts information.
OVERRUN CLUTCH
*: Always check with the Parts Department for the latest parts information.
LOW & REVERSE BRAKE
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 0.45 - 0.85 (0.0177 - 0.0335)
Wear limit 1.85 (0.0728)
Thickness of retaining platesThickness mm (in) Part number*
3.2 (0.126)
3.4 (0.134)
3.6 (0.142)
3.8 (0.150)
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)31537-80X76
31537-80X75
31537-80X70
31537-80X71
31537-80X72
31537-80X73
31537-80X74
Model code number85X64
Number of drive plates5
Number of driven plates5
Drive plate thickness mm (in)Standard 1.6 (0.063)
Wear limit 1.4 (0.055)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 0.45 - 0.85 (0.0177 - 0.0335)
Wear limit 1.85 (0.0728)
Thickness of retaining platesThickness mm (in) Part number*
3.2 (0.126)
3.4 (0.134)
3.6 (0.142)
3.8 (0.150)
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)31537-80X76
31537-80X75
31537-80X70
31537-80X71
31537-80X72
31537-80X73
31537-80X74
Model code number85X23, 85X64
Number of drive plates3
Number of driven plates5
Drive plate thickness mm (in)Standard 1.6 (0.063)
Wear limit 1.4 (0.055)
Driven plate thickness mm (in) Standard 1.6 (0.063)
Clearance mm (in)Standard 0.7 - 1.1 (0.028 - 0.043)
Wear limit 1.7 (0.067)
Thickness of retaining platesThickness mm (in) Part number*
3.0 (0.118)
3.2 (0.126)
3.4 (0.134)
3.6 (0.142)
3.8 (0.150)31537-80X65
31537-80X66
31537-80X67
31537-80X68
31537-80X69
Model code number85X23
Number of drive plates5
Number of driven plates5

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-535
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

*: Always check with the Parts Department for the latest parts information.
*: Always check with the Parts Department for the latest parts information.
CLUTCH AND BRAKE RETURN SPRINGS
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
BRAKE BAND
Final DriveECS00F1X
DIFFERENTIAL SIDE GEAR CLEARANCE
Drive plate thickness mm (in)Standard 1.8 (0.071)
Wear limit 1.6 (0.063)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 1.7 - 2.1 (0.067 - 0.083)
Wear limit 3.3 (0.130)
Thickness of retaining platesThickness mm (in) Part number*
2.0 (0.079)
2.2 (0.087)
2.4 (0.094)
2.6 (0.102)
2.8 (0.110)
3.0 (0.118)
3.2 (0.126)
3.4 (0.134)31667-80X00
31667-80X01
31667-80X02
31667-80X03
31667-80X04
31667-80X05
31667-80X06
31667-80X07
Model code number85X64
Number of drive plates6
Number of driven plates6
Drive plate thickness mm (in)Standard 1.8 (0.071)
Wear limit 1.6 (0.063)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 1.7 - 2.1 (0.067 - 0.083)
Wear limit 3.3 (0.130)
Thickness of retaining platesThickness mm (in) Part number*
2.0 (0.079)
2.2 (0.087)
2.4 (0.094)
2.6 (0.102)
2.8 (0.110)
3.0 (0.118)
3.2 (0.126)
3.4 (0.134)31667-80X00
31667-80X01
31667-80X02
31667-80X03
31667-80X04
31667-80X05
31667-80X06
31667-80X07
Parts Part number* Free length Outer diameter
Forward clutch (Overrun clutch)
(22 pcs)31505-80X02 21.4 (0.843) 10.3 (0.406)
High clutch (12 pcs) 31505-80X05 22.5 (0.886) 10.8 (0.425)
Low & reverse brake (24 pcs) 31505-80X07 24.1 (0.949) 6.6 (0.260)
Anchor end pin tightening torque N·m (kg-m, in-lb) 4.9 (0.50, 43)
Number of returning revolutions for anchor end pin 2.5
Lock nut tightening torque N·m (kg-m, ft-lb) 34 (3.5, 25)
Clearance between side gear and differential case with
washer mm (in)0.1 - 0.2 (0.004 - 0.008)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-539
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

BEARING RACE FOR ADJUSTING TOTAL END PLAY
*: Always check with the Parts Department for the latest parts information.
Reverse Clutch End PlayECS00F25
THRUST WASHERS FOR ADJUSTING REVERSE CLUTCH DRUM END PLAY
*: Always check with the Parts Department for the latest parts information.
Removal and InstallationECS00F26
Unit: mm (in)
Shift Solenoid ValvesECS00F27
Solenoid ValvesECS00F28
Thickness mm (in) Part number*
0.8 (0.031)
1.0 (0.039)
1.2 (0.047)
1.4 (0.055)
1.6 (0.063)
1.8 (0.071)
2.0 (0.079)
0.9 (0.035)
1.1 (0.043)
1.3 (0.051)
1.5 (0.059)
1.7 (0.067)
1.9 (0.075)31435-80X00
31435-80X01
31435-80X02
31435-80X03
31435-80X04
31435-80X05
31435-80X06
31435-80X09
31435-80X10
31435-80X11
31435-80X12
31435-80X13
31435-80X14
Reverse clutch end play mm (in) 0.61 - 1.0 (0.0240 - 0.039)
Thickness mm (in) Part number*
0.80 (0.0315)
0.95 (0.0374)
1.10 (0.0433)
1.25 (0.0492)
1.40 (0.0551)
1.55 (0.0610)
1.70 (0.0669)
1.85 (0.0728)31508-80X13
31508-80X14
31508-80X15
31508-80X16
31508-80X17
31508-80X18
31508-80X19
31508-80X20
Engine Distance between end of converter housing and torque converter
QR20DE19 (0.75)
QR25DE14 (0.55)
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Solenoid valves Resistance (Approx.)ΩTerminal No.
Shift solenoid valve A 20 - 30 2
Shift solenoid valve B 5 - 20 1
Overrun clutch solenoid valve 20 - 30 3
Line pressure solenoid valve 2.5 - 5 4
Torque converter clutch solenoid valve 5 - 20 5

TF-10
ALL MODE 4X4 SYSTEM

ALL MODE 4X4 SYSTEMPFP:47850
Power Transfer DiagramEDS001VA
System DescriptionEDS001VB
ELECTRIC CONTROLLED COUPLING
Operation Principle
1. The 4WD control unit supplies command current to electric con-
trolled coupling (4WD solenoid).
2. The control clutch is engaged by electromagnet and torque is
detected in control clutch.
3. The cam operates in response to control clutch torque and
applies pressure to main clutch.
4. The main clutch transmits torque to front wheels according to
pressing power.

Transmission torque to the rear wheels is determined accord-
ing to command current.
4WD CONTROL UNIT

4WD controls distribution of drive power between front-wheel
drive (100:0) and 4WD (50:50) conditions according to signals
from sensors.

Self-diagnosis can be done with CONSULT-II.
SDIA1607E
SFIA0284E
SDIA1844E
SDIA2285E

TROUBLE DIAGNOSIS
TF-27
C
E
F
G
H
I
J
K
L
MA
B
TF

Trouble Diagnosis Chart for SymptomsEDS001VJ
If 4WD warning lamp turns ON, perform self-diagnosis. Refer to TF-30, "SELF-DIAG RESULT MODE" .
NOTE:

Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode. This is not malfunction.

Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions: LOCK mode, steering
wheel is turned fully to either sides, and accelerator pedal was depressed.Symptom Condition Check item Reference page
4WD indicator lamp and LOCK indicator
lamp do not turn ON for approx. 1 second
when the ignition switch is turned to ON.
(4WD indicator lamp and LOCK indicator
lamp check)Ignition switch: ONCAN communication line
TF-44
Power supply and ground for 4WD con-
trol unit
Unified meter control unit
4WD warning lamp does not turn ON when
the ignition switch is turned to ON.
(4WD warning lamp check)Ignition switch: ONCAN communication line
TF-45
Unified meter control unit
4WD warning lamp does not turn OFF sev-
eral seconds after engine started.Engine runningCAN communication line
TF-46
Power supply and ground for 4WD con-
trol unit
Unified meter control unit
4WD solenoid
4WD actuator relay (integrated in 4WD
control unit)
Wheel sensor
4WD mode cannot be switched after engine
is started.Engine running4WD mode switch
TF-47
CAN communication line
Unified meter control unit
Heavy tight-corner braking symptom occurs
when the vehicle is driven in AUTO mode
and the steering wheel is turned fully to
either side after the engine is started. (See
NOTE.)

While driving

AUTO mode

Steering wheel is
turned fully to either
sidesCAN communication line
TF-48
4WD mode switch
Accelerator pedal position signal
4WD solenoid
Mechanical malfunction of electric con-
trolled coupling (clutch sticking etc.)
Vehicle does not enter 4WD mode even
though 4WD warning lamp turned to OFF.Vehicle speed: 10 km/h
(6 MPH) or less4WD solenoid
TF-49
Mechanical malfunction of electric con-
trolled coupling (Mechanical engage-
ment of clutch is not possible.)
Vehicle speed: 10 km/h
(6 MPH) or moreOperating condition of parking brake
4WD solenoid
Mechanical malfunction of electric con-
trolled coupling (Mechanical engage-
ment of clutch is not possible.)
While driving, 4WD warning lamp flashes
rapidly. (When flashing in approx. 1 minute
and then turning OFF.)
Rapid flashing: 2 times/second

While driving

AUTO mode and
LOCK modeProtection function is activated due to
heavy load to electric controlled cou-
pling. (4WD system is not malfunction-
ing.)TF-50
While driving, 4WD warning lamp flashes
slowly. (When continuing to flash until turn-
ing ignition switch OFF)
Slow flashing: 1 time/2 seconds
While driving

Vehicle speed: 20 km/h
(12 MPH) or moreTire size is different between front and
rear of vehicle.TF-51

TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-49
C
E
F
G
H
I
J
K
L
MA
B
TF

4. CHECK SYSTEM FOR 4WD SOLENOID
Perform trouble diagnosis for 4WD solenoid system. Refer to TF-36, "
4WD Solenoid" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK ELECTRIC CONTROLLED COUPLING
1. Turn ignition switch “OFF”.
2. Set the selector lever (shift lever) to “N” (neutral) position and disengage the parking brake.
3. Lift up the vehicle.
4. Rotate the propeller shaft by hand.
5. Hold rear wheel of right and left lightly.
Does rear wheel rotate?
YES >> Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to
RFD-22, "
Disassembly and Assembly" .
NO >> GO TO 6.
6. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-28, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >>INSPECTION END
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
Vehicle Does Not Enter 4WD Mode Even Though 4WD Warning Lamp Turned to
OFF
EDS001VY
CAUTION:
Make sure that parking brake is securely released if the symptom has occurred at vehicle speed of 10
km/h (6 MPH) or more.