2003 NISSAN X-TRAIL brakes

MODEL T30 SERIES
2001 NISSAN EUROPE N.V.
All rights reserved. No part of this Electronic Service Manual may be reproduced or stored in a retrieval system, or transmitted in any
form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Nissan
Europe N.V., Paris, France.
A GENERAL INFORMATION
B ENGINE
C TRANSMISSION/
TRANSAXLE
D DRIVELINE/AXLE
E SUSPENSION
F BRAKES
G STEERING
H RESTRAINTS
I BODY
J AIR CONDITIONER
K ELECTRICAL
L MAINTENANCE
M INDEXGI General Information
EM Engine Mechanical
LU Engine Lubrication System
CO Engine Cooling System
EC Engine Control System
FL Fuel System
EX Exhaust System
ACC Accelerator Control System
CL Clutch
MT Manual Transaxle
AT Automatic Transaxle
TF Transfer
PR Propeller Shaft
RFD Rear Final Drive
FAX Front Axle
RAX Rear Axle
FSU Front Suspension
RSU Rear Suspension
WT Road Wheels & Tires
BR Brake System
PB Parking Brake System
BRC Brake Control System
PS Power Steering System
SB Seat Belts
SRS Supplemental Restraint System (SRS)
BL Body, Lock & Security System
GW Glasses, Window System & Mirrors
RF Roof
EI Exterior & Interior
IP Instrument Panel
SE Seat
ATC Automatic Air Conditioner
MTC Manual AIr Conditioner
SC Starting & Charging System
LT Lighting System
DI Driver Information System
WW Wiper, Washer & Horn
BCS Body Control System
LAN LAN System
AV Audio, Visual & Telephone System
PG Power Supply, Ground & Circuit Elements
MA Maintenance
IDX Alphabetical Index
QUICK REFERENCE INDEX
A
B
C
D
E
F
G
H
I
J
K
L
M

AT-4
Differential Side Oil Seal Replacement .................457
Revolution Sensor Replacement ..........................457
REMOVAL AND INSTALLATION ...........................458
Removal ...............................................................458
Installation .............................................................459
OVERHAUL .............................................................461
Components .........................................................461
Oil Channel ...........................................................464
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................465
DISASSEMBLY .......................................................466
Disassembly .........................................................466
REPAIR FOR COMPONENT PARTS ......................482
Manual Shaft ........................................................482
Oil Pump ...............................................................485
Control Valve Assembly ........................................489
Control Valve Upper Body ....................................498
Control Valve Lower Body ....................................502
Reverse Clutch .....................................................504
High Clutch ...........................................................507
Forward and Overrun Clutches ............................512
Low & Reverse Brake ...........................................518
Rear Internal Gear, Forward Clutch Hub and Over-
run Clutch Hub ......................................................521
Output Shaft, Idler Gear, Reduction Pinion Gear and
Bearing Retainer ...................................................525
Band Servo Piston Assembly ...............................530
Final Drive ............................................................535ASSEMBLY ............................................................. 540
Assembly (1) ......................................................... 540
Adjustment (1) ....................................................... 541
Assembly (2) ......................................................... 546
Adjustment (2) ....................................................... 553
Assembly (3) ......................................................... 556
SERVICE DATA AND SPECIFICATIONS (SDS) .... 563
General Specifications .......................................... 563
Shift Schedule ....................................................... 563
Stall Revolution ..................................................... 563
Line Pressure ........................................................ 563
Control Valves ....................................................... 564
Accumulator .......................................................... 564
Clutch and Brakes ................................................. 564
Final Drive ............................................................. 566
Planetary Carrier and Oil Pump ............................ 567
Input Shaft ............................................................. 568
Reduction Pinion Gear .......................................... 568
Band Servo ........................................................... 569
Output Shaft .......................................................... 569
Bearing Retainer ................................................... 569
Total End Play ....................................................... 569
Reverse Clutch End Play ...................................... 570
Removal and Installation ....................................... 570
Shift Solenoid Valves ............................................ 570
Solenoid Valves .................................................... 570
A/T Fluid Temperature Sensor .............................. 570
Revolution Sensor ................................................. 571
Dropping Resistor ................................................. 571

AT-58
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.oRead the Fail-safe and listen to customer complaints.AT-57, "Infor-
mation from
Customer"
2.oCHECK A/T FLUIDAT-64, "A/T
Fluid Check"oLeakage (Follow specified procedure)
oFluid condition
oFluid level
3.oPerform STALL TEST and LINE PRESSURE TEST.AT-65, "
Stall
Te s t",AT- 6 8 ,
"Line Pres-
sure Test"
oStall test — Mark possible damaged components/others.
oTorque converter one-way clutch
oReverse clutch
oForward clutch
oOverrun clutch
oForward one-way clutchoLow & reverse brake
oLow one-way clutch
oEngine
oLine pressure is low
oClutches and brakes except high clutch and
brake band are OK
oLine Pressure test — Suspected parts:

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-93
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Clutches or brakes slip somewhat in
starting.ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Control cable adjustmentAT-456,
"Control
Cable
Adjustment"
¬
3. Throttle position sensor (Accelerator
pedal position (App) sensor) AdjustmentEC-154, "
DTC P0121 APP
SENSOR"
4. Line pressure testAT-68, "
Line
Pressure
Te s t"
¬
5. Line pressure solenoid valveAT-436,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
AT-186,
"DTC P0745
LINE PRES-
SURE
SOLENOID
VA LV E"
6. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬
7. Accumulator N-DAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬
OFF vehicle8. Forward clutchAT-512,
"Forward
and Overrun
Clutches"
¬
9. Reverse clutchAT-504,
"Reverse
Clutch"
¬
10. Low & reverse brakeAT-518,
"Low&
Reverse
Brake"
¬
11. Oil pumpAT-485, "
Oil
Pump"¬
12. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

TROUBLE DIAGNOSIS — INTRODUCTION
AT-281
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Diagnostic Worksheet
1.oRead the Fail-safe and listen to customer complaints.AT- 8 , "Wiring
Diagrams
and Trouble
Diagnosis",
AT- 2 8 0 ,
"DIAGNOS-
TIC WORK-
SHEET"
2.oCHECK A/T FLUIDAT- 2 8 6 , "A/T
Fluid Check"oLeakage (Follow specified procedure)
oFluid condition
oFluid level
3.oPerform STALL TEST and LINE PRESSURE TEST.AT- 2 8 7 , "
St a l l
Te s t",AT-
290, "Line
Pressure
Te s t"
oStall test — Mark possible damaged components/others.
oTorque converter one-way clutch
oReverse clutch
oForward clutch
oOverrun clutch
oForward one-way clutchoLow & reverse brake
oLow one-way clutch
oEngine
oLine pressure is low
oClutches and brakes except high clutch and
brake band are OK
oLine Pressure test — Suspected parts:

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-315
[EXC.F/EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
Clutches or brakes slip somewhat in
starting.ON vehicle1. Fluid levelAT-286,
"FLUID
LEVEL
CHECK"
¬
2. Control cable adjustmentAT-456,
"Control
Cable
Adjustment"
¬
3. Throttle position sensor (Accelerator
pedal position (App) sensor) AdjustmentEC-154, "
DTC P0121 APP
SENSOR"
4. Line pressure testAT-290,"Line Pres-
sure Test"
¬
5. Line pressure solenoid valveAT-436,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
AT-186,
"DTC P0745
LINE PRES-
SURE
SOLENOID
VA LV E"
6. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬
7. Accumulator N-DAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬
OFF vehicle8. Forward clutchAT-512,
"Forward
and Overrun
Clutches"
¬
9. Reverse clutchAT-504,
"Reverse
Clutch"
¬
10. Low & reverse brakeAT-518,
"Low&
Reverse
Brake"
¬
11. Oil pumpAT-485, "
Oil
Pump"¬
12. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

AT-564
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)
Control Valves
ECS004MM
CONTROL VALVE AND PLUG RETURN SPRINGS
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
AccumulatorECS0 04 MN
O-RING
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
RETURN SPRING
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Clutch and BrakesECS004MO
REVERSE CLUTCH
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)
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)
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
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)

BR-1
BRAKE SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION
A
B
BR
BRAKE SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Models with SRS Air Bag and Pre-
Tensioner Seat Belt .................................................. 3
Precautions for Brake System .................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
BRAKE PEDAL .......................................................... 6
On-Vehicle Inspection and Adjustment .................... 6
Components ............................................................. 7
Removal and Installation .......................................... 7
REMOVAL ............................................................. 7
INSPECTION AFTER REMOVAL ......................... 8
INSTALLATION ..................................................... 8
BRAKE FLUID ............................................................ 9
Checking Brake Fluid Level ..................................... 9
Checking Brake Line ................................................ 9
Changing Brake Fluid ............................................... 9
Brake Burnishing Procedure .................................. 10
Bleeding Brake System .......................................... 10
BRAKE PIPING AND HOSE .....................................11
Hydraulic Piping ......................................................11
Removal and Installation of Front Brake Piping and
Brake Hose .............................................................11
REMOVAL ............................................................11
INSTALLATION ....................................................11
Removal and Installation of Rear Brake Piping and
Brake Hose ............................................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 12
Inspection ............................................................... 12
BRAKE MASTER CYLINDER .................................. 13
Components ........................................................... 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13INSTALLATION ................................................... 13
Disassembly and Assembly .................................... 14
DISASSEMBLY ................................................... 14
INSPECTION AFTER REMOVAL ....................... 14
ASSEMBLY ......................................................... 15
BRAKE BOOSTER ................................................... 17
On-Vehicle Inspection and Service ......................... 17
FUNCTION INSPECTION ................................... 17
AIRTIGHTNESS INSPECTION ........................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 17
INSTALLATION ................................................... 18
VACUUM LINES ....................................................... 19
Removal and Installation ........................................ 19
Inspection ............................................................... 19
VISUAL INSPECTION ......................................... 19
CHECK VALVE INSPECTION ............................. 20
FRONT DISC BRAKE ............................................... 21
Component ............................................................. 21
Inspection ............................................................... 21
PAD THICKNESS ................................................ 21
Pad Replacement ................................................... 22
REMOVAL ........................................................... 22
INSTALLATION ................................................... 22
Caliper Removal and Installation ............................ 22
REMOVAL ........................................................... 22
INSTALLATION ................................................... 23
Caliper Disassembly and Assembly ....................... 23
DISASSEMBLY ................................................... 23
INSPECTION AFTER DISASSEMBLY ................ 24
DISC ROTOR INSPECTION ............................... 24
ASSEMBLY ......................................................... 25
BRAKE BURNISHING PROCEDURE ................. 25
REAR DISC BRAKE ................................................. 27
Component ............................................................. 27
Inspection ............................................................... 27
PAD WEAR INSPECTION ................................... 27
Pad Replacement ................................................... 28
REMOVAL ........................................................... 28