2001 NISSAN X-TRAIL clutch

AT-522
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)
Stall Revolution
ECS004MK
Line PressureECS004ML
Control ValvesECS004MM
CONTROL VALVE AND PLUG RETURN SPRINGS
For 85X23 model
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. EngineStall revolutio n
rpm
QR20DE 2,450 - 2,950
QR25DE 2,300 - 2,750
Engine speed
rpmLine pressure kPa (kg/cm2 , psi)
D, 2 and 1 positions R position
Idle 500 (5.1, 73) 778 (7.9, 113)
Stall 1,233 (12.6, 179) 1,918 (19.6, 278)
PartsItem
Part No.* Free length Outer diameter
Upper body23 Pilot valve spring 31742-3AX03 38.98 (1.535) 8.9 (0.350)
7 1-2 accumulator valve spring 31742-3AX00 20.5 (0.807) 6.95 (0.274)
28 1-2 accumulator piston spring 31742-85X02 55.60 (2.189) 19.6 (0.772)
33 1st reducing valve spring 31742-80X05 27.0 (1.063) 7.0 (0.276)
35 3-2 timing valve spring 31736-01X00 23.0 (0.906) 6.65 (0.262)
18 Overrun clutch reducing valve spring 31742-80X15 37.5 (1.476) 6.9 (0.272)
16 Torque converter relief valve spring 31742-80X07 31.0 (1.220) 9.0 (0.354)
11 Torque converter clutch control valve 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 body15 Pressure regulator valve spring 31742-80X13 45.0 (1.772) 15.0 (0.591)
20 Overrun clutch control valve spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
24 Accumulator control valve spring 31742-80X02 22.0 (0.866) 6.5 (0.256)
29 Shift valve A spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
32 Shuttle valve spring 31762-41X04 51.0 (2.008) 5.65 (0.222)
12 Shift valve B spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
7
Pressure modifier valve spring31742-41X15 30.5 (1.201) 9.8 (0.386)
3 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)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-523
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT
For 85X64 model
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
AccumulatorECS004MN
O-RING
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. PartsItem
Part No.* Free length Outer diameter
Upper body23 Pilot valve spring 31742-3AX03 38.98 (1.535) 8.9 (0.350)
7 1-2 accumulator valve spring 31742-3AX00 20.5 (0.807) 6.95 (0.274)
28 1-2 accumulator piston spring 31742-3AX08 55.26 (2.176) 19.6 (0.772)
33 1st reducing valve spring 31742-80X05 27.0 (1.063) 7.0 (0.276)
35 3-2 timing valve spring 31736-01X00 23.29 (0.917) 6.65 (0.262)
18 Overrun clutch reducing valve spring 31742-80X15 37.5 (1.476) 6.9 (0.272)
16 Torque converter relief valve spring 31742-80X07 31.0 (1.220) 9.0 (0.354)
11 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 body15 Pressure regulator valve spring 31742-80X13 45.0 (1.772) 15.0 (0.591)
20 Overrun clutch control valve spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
24 Accumulator control valve spring 31742-80X02 22.0 (0.866) 6.5 (0.256)
29 Shift valve A spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
32 Shuttle valve spring 31762-41X04 51.0 (2.008) 5.65 (0.222)
12 Shift valve B spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
7
Pressure modifier valve spring31742-41X15 30.5 (1.201) 9.8 (0.386)
3 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)

AT-524
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)
RETURN SPRING
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Clutch and BrakesECS004MO
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)
Allowable 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)
Allowable 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)
Allowable 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)
Allowable 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)
Allowable limit 1.4 (0.055)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-525
[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.
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)
Allowable 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)
Allowable 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)
Allowable 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)
Allowable 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)
Allowable 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

AT-526
[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.
CLUTCH AND BRAKE RETURN SPRINGS
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
BRAKE BAND
Final DriveECS004MP
DIFFERENTIAL SIDE GEAR CLEARANCE
Drive plate thickness mm (in)Standard 1.8 (0.071)
Allowable 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)
Allowable 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)
Allowable 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)
Allowable 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) 4.0 - 5.8 (0.4 - 0.6, 35 - 52)
Number of returning revolutions for anchor end pin 2.5
Lock nut tightening torque N·m (kg-m, ft-lb) 32 - 36 (3.3 - 3.7, 23 - 27)
Clearance between side gear and differential case with
washer mm (in)0.1 - 0.2 (0.004 - 0.008)

AT-530
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)
BEARING RACE FOR ADJUSTING TOTAL END PLAY
*: Always check with the Parts Department for the latest parts information.
Reverse Clutch End PlayECS004MX
THRUST WASHERS FOR ADJUSTING REVERSE CLUTCH DRUM END PLAY
*: Always check with the Parts Department for the latest parts information.
Removal and InstallationECS004MY
Unit: mm (in)
Shift Solenoid ValvesECS004MZ
Solenoid ValvesECS004N0
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) 0.55 - 0.90 (0.0217 - 0.0354)
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-30
ALL MODE 4X4 SYSTEM
ALL MODE 4X4 SYSTEM
PFP:47850
PrecautionsEDS000IV
●This section describes ESP/TCS/ABS model.
●Refer to the BRC section for model without ESP/TCS/ABS.Refer toBRC-6, "ALL MODE 4X4 SYSTEM"
System ComponentEDS000IJ
System DescriptionEDS000IK
ELECTRONIC COUPLING
●In response to command current from 4WD control unit, control
clutch pull-in force is generated at the electromagnet and torque
is generated at the control clutch.
●The cam operates in response to control clutch torque and
applies pressure to main clutch.
● Main clutch transmits torque from input shaft to output shaft,
according to the amount of pressure.
●The actual amount of torque transfer is determined by control
current as shown in figure below (I-T characteristics figure).
4WD CONTROL UNIT
●Controls distribution of drive power between front-wheel drive
(100:0) and 4WD (50:50) conditions circuit according to signals
from sensors.
●If malfunction occurs in 4WD system, 4WD warning lamp turns
ON and vehicle changes to front-wheel drive.
● Self-diagnosis can be done with CONSULT-II.
SFIA0283E
SFIA0284E
SFIA0285E
SFIA0286E

TF-42
TROUBLE DIAGNOSIS
NOTE:
1. Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode. This is not
malfunction.
2. 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.
3. When the difference of revolution speed between the front and the rear wheels is large, the 4WD mode
does not change to other mode.this is not a malfunction.
4WD control unit input/output signal standardEDS000H9
4WD CONTROL UNIT CONNECTOR TERMINAL ARRANGEMENT
When ignition switch is turned to ON with connectors of 4WD control unit connected.
While driving, 4WD warning lamp
flashes rapidly. (when it flashes for
approx. one minute, then does not illu-
minate.) Rapid flashing: Two times
flashing per 1 secondEngine running
(to other than 2WD
mode)Protection function was activated due to heavy
load to electronically controlled coupling. (4WD
system is not malfunctioning.)TF-57, "
WHILE
DRIVING, 4WD
WARNING
LAMP
FLASHES RAP-
IDLY. (WHEN IT
FLASHERS
FOR APPROX.
ONE MINUTE,
THEN DOES
NOT ILLUMI-
NATE.)"
While driving, 4WD warning lamp
flashes slowly. (when it flashes for
approx. one minute, then does not illu-
minate.)Slow flashing: One flashing
per 2 seconds●Engine running
●Driving at vehicle
speed 20km/
h(12MPH)Tire size is different for front and rear of vehicle.TF-57, "
WHILE
DRIVING, 4WD
WARNING
LAMP
FLASHES
SLOWLY.
(WHEN IT
CONTINUES
TO ILLUMI-
NATE UNTIL
ENGINE
TURNS OFF.)"
Vehicle does not enter 4WD mode
even though 4WD warning lamp is off.Engine runningMechanical malfunction of electronically con-
trolled coupling (Mechanical engagement of
clutch is not possible.)TF-58, "
VEHI-
CLE DOES
NOT ENTER
4WD MODE
EVEN
THOUGH 4WD
WARNING
LAMP IS OFF."
Symptom Condition Check items Reference page
SDIA0120E