NISSAN X-TRAIL 2001 Service Repair Manual

PARKING BRAKE SHOE
PB-7
C
D
E
G
H
I
J
K
L
MA
B
PB
INSPECTION
●Visually check lining for abnormal wear, damage, and peeling.
●Using a scale, check thickness of lining.
CAUTION:
If necessary, remove brake shoe, and check as follows.
●Check shoe sliding surface for abnormal wear and damage.
●Check anchor pin for abnormal wear and corrosion.
●Check return spring for sagging.
●Check adjuster for rough operation.
●Visually check inside of drum for abnormal wear, damage, and
cracks. Using a pair of vernier calipers, check inside of drum.
INSTALLATION
1. Apply brake grease to the contact area of show at left.Standard lining thickness : 3.5 mm (0.138 in)
Lining limit (A) : 1.5 mm (0.059 in)
Standard inner diameter : 172 mm (6.77 in)
Maximum inner diameter : 173 mm (6.81 in)
SBR021A
SBR768A
SBR047C

PB-8
PARKING BRAKE SHOE
2. Attach upper-side return springs to brake shoe as shown in the
figure. Be sure to install return spring B over return spring A.
3. Orientation of adjusters is different for LH adjuster and RH
adjuster. Assemble adjusters so that threaded part is expanded
when rotating it to direction shown by arrow. Contract adjuster to
assemble.
CAUTION:
When adjuster was disassembled, apply brake grease to thread.
4. Assemble torque lever in direction of installation as shown in the
figure.
SFIA0281E
SFIA0153E
SBR096C

PARKING BRAKE SHOE
PB-9
C
D
E
G
H
I
J
K
L
MA
B
PB
5. After assembly, be sure that each part is installed properly.
6. Fix disc rotor with wheel nut, and adjust brake shoe clearance.
Remove adjusting hole plug. Turn star wheel on adjuster in
direction A (for both wheels) until disc rotor locks. Then turn star
wheel in the opposite direction for 6 notches.
7. Rotate disc rotor to be sure that there is no drag. Then install
adjusting hole plug.
8. Adjust parking brake cable.
CAUTION:
If brake shoes were replaced with new ones. Carry out break-in
operation.
SBR048C
SBR097CA

PB-10
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Parking BrakeEFS000D2
Ty p eDS17H
Brake liningStandard thickness (new) 3.5 mm (0.138 in)
Repair limit thickness 1.5 mm (0.059 in)
Drum (disc)Standard inner diameter (new) 172 mm (6.7 7in)
Wear limit of inner diameter 173 mm (6.81 in)
Lever stroke [operating force 196 N (20 kg,44 lb)] 6 to 7 notches
To t a l s t r o k e18 notches
Brake warning lamp strokeWithin 1 notch

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION
A
B
BRC
BRAKE CONTROL SYSTEM
4WD/ABS
PRECAUTIONS .......................................................... 4
Precautions for brake system ................................... 4
Precautions for brake control ................................... 4
PREPARATION ........................................................... 5
Special Service Tool ................................................. 5
Commercial Service Tool ......................................... 5
ALL MODE 4X4 SYSTEM .......................................... 6
System Description .................................................. 6
ABS FUNCTION ................................................... 6
4WD FUNCTION ................................................... 6
Control System Diagram .......................................... 6
TROUBLE DIAGNOSIS .............................................. 7
Fail-safe Function ..................................................... 7
How to Proceed with Trouble Diagnosis .................. 7
BASIC CONCEPT ................................................. 7
DIAGNOSIS FLOW ............................................... 8
ASKING COMPLAINTS ........................................ 9
TROUBLE DIAGNOSIS SHEET - EXAMPLE ....... 9
Component Parts Location ..................................... 10
Schematic ............................................................... 11
Wiring Diagram — ABS — ..................................... 12
Trouble Diagnosis Chart by Symptom .................... 18
4WD/ABS Control Unit Input/Output Signal Stan-
dard ........................................................................ 19
4WD/ABS CONTROL UNIT CONNECTOR TER-
MINAL ARRANGEMENT .................................... 19
REFERENCE STANDARD TABLE ..................... 19
CONSULT-II Functions ........................................... 23
CONSULT-II FUNCTION APPLICATION TABLE ... 23
SELF-DIAGNOSIS .............................................. 24
DATA MONITOR ................................................. 26
ACTIVE TEST ..................................................... 29
Component Inspection ........................................... 30
ABS ACTUATOR ................................................ 30
4WD SOLENOID VALVE .................................... 32
Basic Inspection ..................................................... 32
BASIC INSPECTION 1 BRAKE FLUID LEVEL
AND LEAKAGE INSPECTION ............................ 32
BASIC INSPECTION 2 INSPECTION FOR LOOSE POWER SUPPLY TERMINAL ............... 32
BASIC INSPECTION 3 ABS/4WD WARNING
LAMP INSPECTION ............................................ 32
Wheel Sensor System ............................................ 32
INSPECTION PROCEDURE .............................. 32
Control Unit Power Supply System ........................ 34
INSPECTION PROCEDURE .............................. 34
G -Sensor System (4WD models) .......................... 34
INSPECTION PROCEDURE .............................. 34
4WD Solenoid, Actuator Relay System .................. 35
4WD Mode Switch System ..................................... 37
Trouble Diagnoses for Symptoms .......................
... 38
4WD INDICATOR LAMP DOES NOT COME ON
FOR APPROXIMATELY 1 SECOND WHEN THE
IGNITION SWITCH IS TURNED TO ON ............. 38
4WD WARNING LAMP DOES NOT ILLUMINATE
WITH IGNITION ON ............................................ 39
4WD WARNING LAMP DOES NOT GO OUT
SEVERAL SECONDS AFTER ENGINE
STARTED.(4WD MODE INDICATOR LAMP
GOES OUT) ........................................................ 39
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 ......................................... 39
4WD MODES CANNOT BE SWITCHED AFTER
ENGINE IS STARTED ......................................... 41
WHILE DRIVING, 4WD WARNING LAMP
FLASHES RAPIDLY. (WHEN IT FLASHERS FOR
APPROX. ONE MINUTE, THEN DOES NOT
ILLUMINATE.) ..................................................... 41
WHILE DRIVING, 4WD WARNING LAMP
FLASHES SLOWLY. (WHEN IT CONTINUES TO
ILLUMINATE UNTIL ENGINE TURNS OFF.) ...... 41
VEHICLE DOES NOT ENTER 4WD MODE
EVEN THOUGH 4WD WARNING LAMP IS OFF. ... 41
TIGHT-CORNER BRAKING SYMPTOM
OCCURS WHEN THE VEHICLE IS STARTED IN
AUTO WARNING LAMP REMAIN OFF). ............ 42

BRC-2
4WD ACTUATOR RELAY (4WD SOLENOID
A C T U AT O R R E L AY ) T U R N S O N / O F F F R E -
QUENTLY ............................................................ 42
ABS Warning Lamp Does Not Illuminate. (ABS
Warning Lamp Does Not Come On When The Igni-
tion Switch Is Turned ON.) ...................................... 42
ABS Warning Lamp Illuminates With Ignition ON,
But Does Not Illuminates After A Few Seconds.
(ABS Warning Lamp Has Illuminated.) ................... 42
4WD Warning Lamp Does Not Illuminate With Igni-
tion ON. .................................................................. 43
4WD Warning Lamp Does Not Go Out Several Sec-
onds After Engine Is Started. (Drive Mode Indicator
Lamp Goes Out.) .................................................... 43
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. ............................................ 44
Drive Modes Cannot Be Switched After Engine Is
Started. ................................................................... 45
Wheel Driving, 4WD Warning Lamp Flashes Rap-
idly. (When It Flashes For Approx. One Minute, Then
Does Not Illuminate.) .............................................. 45
Wheel Driving, 4WD Warning Lamp Flashes Slowly.
(When It Continues To Illuminate Until Engine Turns
OFF.) ....................................................................... 45
Vehicle Does Not Enter 4WD Mode Even Though
4WD Warning Lamp Is OFF. ................................... 46
Tight-corner Braking Symptom Occurs When The
Vehicle Is Started In Auto Mode (4WD Warning
Lamp Remain OFF). ............................................... 46
E-TS Actuator Relay (4WD Solenoid Actuator
Relay) Turns ON/OFF Frequently. .......................... 46
Inspection Of Drive Mode Change-over Switch Path ... 47
4WD/ABS CONTROL UNIT ...................................... 48
Removal and Installation ........................................ 48
REMOVAL ........................................................... 48
INSTALLATION .................................................... 48
WHEEL SENSORS ................................................... 49
Removal and Installation ........................................ 49
G-SENSOR (4WD MODEL ONLY) ............................ 50
Removal and Installation ........................................ 50
SENSOR ROTOR ................................................... ... 51
Removal and Installation ........................................ 51
REMOVAL ........................................................... 51
INSTALLATION .................................................... 51
ACTUATOR ............................................................... 52
Removal and Installation ........................................ 52
REMOVAL ........................................................... 53
INSTALLATION .................................................... 53
ESP/TCS/ABS
PRECAUTIONS ......................................................... 54
Precautions for Brake System ................................ 54
Precautions for Brake Control ................................ 54
Precautions for CAN System .................................. 54
FOR INSPECTION .............................................. 54
FOR HARNESS REPAIR .................................... 55PREPARATION ......................................................... 56
Special Service Tool ................................................ 56
Commercial Service Tool ........................................ 56
ON-VEHICLE SERVICE ............................................ 57
Adjustment of Neutral Position of Steering Wheel
Angle Sensor .......................................................... 57
GENERAL INFORMATION ....................................... 59
Fail-Safe .................................................................. 59
ABS SYSTEM ...................................................... 59
ESP/TCS SYSTEM .............................................. 59
Hydraulic Circuit ...................................................... 59
ABS Functions ........................................................ 59
TCS Functions ........................................................ 60
ESP Functions ........................................................ 60
System Diagram ..................................................... 61
CAN COMMUNICATION ........................................... 62
System Description ................................................. 62
FOR A/T MODELS ............................................... 62
FOR M/T MODELS .............................................. 62
TROUBLE DIAGNOSIS ............................................ 64
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ...................................................... 64
INTRODUCTION ................................................. 64
WORK FLOW ...................................................... 65
ASKING COMPLAINTS ....................................... 66
EXAMPLE OF DIAGNOSIS SHEET .................... 66
Component Parts and Harness Connector Location ... 67
Schematic ............................................................... 68
Wiring Diagram —ESP/TCS/ABS— ..................... 69
Control Unit Input/Output Signal Standard .............. 75
STANDARDS USING A CIRCUIT TESTER AND
OSCILLOSCOPE ................................................. 75
STANDARDS WITH CONSULT-II ........................ 78
Functions of CONSULT-II ....................................... 80
CONSULT-II MAINLY FUNCTION APPLICA-
TION TO ESP/TCS/ABS ...................................... 80
SELF-DIAGNOSIS ............................................... 81
DATA MONITOR .................................................. 83
ACTIVE TEST ...................................................... 87
For Correct and Quick Diagnosis ............................ 90
PRECAUTIONS FOR TROUBLE DIAGNOSIS ... 90
Basic Inspection ...................................................... 91
PRELIMINARY CHECK 1: (BRAKE FLUID
LEVEL AND LEAK INSPECTION) ....................... 91
PRELIMINARY CHECK 2: (INSPECTION FOR
LOOSE POWER SUPPLY TERMINAL) ............... 92
PRELIMINARY CHECK 3: (INSPECTION FOR
ABS WARNING LAMP, ESP OFF INDICATOR
LAMP, AND SLIP INDICATOR LAMP) ................. 92
Inspection 1 Wheel Sensor and Circuit ................... 92
Inspection 2 Engine System ................................... 94
Inspection 3 ESP/TCS/ABS Control Unit System ... 94
Inspection 4 Pressure Sensor and the Circuit
between Pressure Sensor and ESP/TCS/ABS Con-
trol Unit. ................................................................... 95
Inspection 5 Steering wheel Angle Sensor and the
Circuit between Steering Wheel Angle Sensor and
ESP/TCS/ABS Control Unit. ................................... 96
Inspection 6 Yaw Rate Sensor and Side G sensor

BRC-3
C
D
E
G
H
I
J
K
L
MA
B
BRC and the Circuit between Yaw Rate Sensor and Side
G sensor and ESP/TCS/ABS Control Unit. ............ 98
Inspection 7 Solenoid Valve, ESP Switch-over Sole-
noid Valve and Circuit ......................................... ... 99
Inspection 8 Actuator Motor, Motor Relay and Circuit
. 102
Inspection 9 Actuator Relay and Circuit ............... 104
Inspection 10 Stop Lamp Switch and Circuit ........ 106
Inspection 11 ESP/TCS/ABS Control Unit Power
Supply Circuit ....................................................... 106
Inspection 12 When “EMERGENCY BRAKE” is
indicated in the Self-Diagnosis Results ................ 108
Inspection 13 When “ST ANG SEN SIGNAL” is Indi-
cated in the Self-Diagnosis Results .....................108
Inspection 14 Brake Fluid Level of Reservoir Tank,
Communication Circuit between ESP/TCS/ABS
Control Unit and Brake Fluid Level Warning Switch . 109
Inspection 15 CAN Communication Circuit, ESP/
TCS/ABS Control Unit and Steering Wheel Angle
Sensor ................................................................... 110
Component Check ............................................... . 111
ESP OFF SWITCH ............................................ . 111
ESP RELAY BOX .............................................. . 111
ESP ACTUATOR ............................................... 112
Symptom 1: ABS Works Frequently. ..................... 114
Symptom 2: Unexpected Pedal Action .................. 114
Symptom 3: Longer Stopping Distance ................. 115
Symptom 4: ABS Does Not Work. ........................ 116Symptom 5: Pedal Vibration and Noise ................116
Symptom 6: ESP OFF Indicator Lamp Does Not Illu-
minate ...................................................................117
Symptom 7: SLIP Indicator Lamp Does Not Illumi-
nate .......................................................................118
Symptom 8: During ESP/TCS/ABS Control, Vehicle
Behavior is Jerky. .................................................118
ESP/TCS/ABS CONTROL UNIT ............................120
Removal and Installation ......................................120
REMOVAL .........................................................120
INSTALLATION .................................................120
WHEEL SPEED SENSORS ....................................121
Removal and Installation ......................................121
SENSOR ROTOR ...................................................122
Removal and Installation ......................................122
REMOVAL .........................................................122
INSTALLATION .................................................122
ESP/TCS/ABS ACTUATOR AND RELAY BOX .....123
Removal and Installation ......................................123
YAW RATE/SIDE G SENSOR .................................124
Removal and Installation ......................................124
REMOVAL .........................................................124
INSTALLATION .................................................124
ESP OFF SWITCH ................................................. .125
Removal and Installation ......................................125
REMOVAL .........................................................125
INSTALLATION .................................................125

BRC-4
[4WD/ABS]
PRECAUTIONS
[4WD/ABS]PRECAUTIONSPFP:00001
Precautions for brake systemEFS001B6
●Recommended fluid is brake fluid “DOT 3 ”or “DOT 4”.
●Never reuse drained brake fluid.
●Be careful not to splash brake fluid on painted areas.
●To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.
●Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
●Use flare nut wrench when removing and installing brake tube.
●Always torque brake lines when installing.
●Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage. Refer to BR-10, "
Brake Burnishing
Procedure" .
●Before working, turn OFF ignition switch. Disconnect connectors
for ABS actuator and control module or battery terminals.
WARNING:
●Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
Precautions for brake controlEFS001B7
●If malfunction is indicated by 4WD warning lamp and/or ABS warning lamp, collect necessary information
from customer (what symptoms are present under what conditions). Find out possible causes before start-
ing service. Besides electrical system inspection, check operation of ABS actuator.
●If malfunction is detected, proceed to trouble diagnosis after checking tire pressure and tire wear.
●Stopping distance or steering stability may be deteriorated by the following conditions. Tire size and type
are in improper combination. Brake pads are not Nissan genuine parts.
●Fitting tires of different size on vehicle can be cause of longitudinal vibration. Always use tires of the same
size and brand. Exchange front and rear tires on the following conditions: Longitudinal vibration occurs in
vehicle with tires of the same size and brand. After replacement, perform trouble diagnosis. 1580|None
●4WD/ABS function may have a failure or error under following condition: There is radio, antenna, or
antenna lead-in wire (including wiring) near control module.
●If aftermarket parts (e.g. Car stereo equipment, CD player) have been installed, check electrical har-
nesses for pinches, open, and improper wiring.
SBR820BA

PREPARATION
BRC-5
[4WD/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
PREPARATIONPFP:00002
Special Service ToolEFS001B8
Commercial Service ToolEFS00216
Tool number
Tool nameDescription
GG9431 0000
Flare nut torque wrench
a: 10mm (0.39 in)Removing and installing each brake
piping
NT406
Tool nameDescription
Brake fluid pressure gauge Measuring brake fluid pressure
S-NT151

BRC-6
[4WD/ABS]
ALL MODE 4X4 SYSTEM
ALL MODE 4X4 SYSTEM
PFP:47850
System DescriptionEFS001CJ
ABS FUNCTION
●During ABS operation, brake pedal lightly vibrates and its mechanical noise may be heard. This is a nor-
mal condition.
●When starting engine, or just after starting vehicle, brake pedal may vibrate. Also motor operating noise
may be heard from engine compartment. This is a normal status of operation check.
● When vehicle drives on rough, gravel, or snowy (fresh deep snow) road, the following conditions occur.
Stopping distance may be longer than that of vehicles without ABS.
4WD FUNCTION
● Electronically controlled 4WD is controlled by the same control module as that for ABS (4WD/ABS control
unit). 4WD/ABS control unit controls both electronically-controlled 4WD and ABS, based on input signals
from several sensors.
●If electrical system-related malfunction occurred in 4WD/ABS system, control unit illuminates the following
lamps: 4WD warning lamp and/or ABS warning lamp on meter control unit assembly. This notifies driver of
malfunction. At the same time, control unit indicates malfunctioning part detected by self-diagnosis with
flashing pattern of LED. Indication on electronic system diagnosis tester (CONSULT) corresponds to this
flashing pattern as shown below.
Control System DiagramEFS001CK
Self-diagnostic test mode Remarks
Result of self-diagnosis Conformable to 4WD/ABS
Data monitor Conformable to 4WD/ABS
Active testChecks ABS solenoid valve ON/OFF, ABS motor ON/OFF, 4WD sole-
noid
Control unit part No. 4WD/ABS control unit
SFIA0350E