2003 NISSAN X-TRAIL flat tire

RSU-6
REAR SUSPENSION ASSEMBLY
On-Vehicle Inspection and Service
EES0007F
Check axle and suspension parts for excessive play, wear, and damage.
lMove rear wheels (RH/LH) to check abnormal free play.
lRetighten all nuts and bolts to the specified torque.
lCheck strut for oil leakage and damage.
Wheel AlignmentEES0007G
DESCRIPTION
lMeasure wheel alignment under unladen conditions. “Unladen conditions” means that fuel, coolant, and
lubricant are full. However, spare tire, jack, and hand tools should be unloaded.
PRELIMINARY INSPECTION
1. Check the tires for improper air pressure and wear.
2. Check road wheels for runout.
3. Check wheel bearing axial endplay.
4. Check strut operation.
5. Check each mounting point of axle and suspension for looseness and deformation.
6. Check each link and arm for cracks, deformation, and other damage.
7. Check the vehicle posture.
CAMBER
Camber is preset at factory and cannot be adjusted.
lIf the camber is not within specification, inspect and replace any damaged or worn rear suspension parts.
TOE-IN
Measure toe-in using the following procedure.
lAlways perform following procedure on a flat surface.
lMake sure that no person is in front of the vehicle before push-
ing it.
1. Bounce rear of vehicle up and down to stabilize the posture.
2. Push the vehicle straight ahead about 5 m (16 ft).
3. Put a mark on base line of tread (rear side) of both tires at the
same height as hub center.this mark is a measuring points.
1 Strut spacer 2 Strut mounting insulator 3 Spring upper seat
4 Upper rubber seat 5 Bound bumper 6 Coil spring
7 Strut 8 Rear axle assembly 9 Rear suspension member
10 Stopper 11 Stopper 12 Eccentric disc
13 Rear parallel link 14 Toe-in adjusting bolt 15 Front parallel link
16 Radius rod 17 Stabilizer bar 18 Clamp
19 Bushing 20 Connecting rod
Camber :RSU-14, "SERVICE DATA AND SPECIFICATIONS (SDS)"
AFA050

PRECAUTIONS
SRS-3
C
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G
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MA
B
SRS
PRECAUTIONSPFP:00001
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER”
EHS000BG
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types
of collision.
WA RN ING:
lTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN/INFINITI dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow harness connector.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceEHS000BH
lDo not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
lBefore servicing the SRS, turn ignition switch “OFF”, disconnect battery ground cable and wait at least 3
minutes.
For approximately 3 minutes after the cables is removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
lDiagnosis sensor unit must always be installed with their arrow marks “Ü” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before instal-
lation and replace as required.
lThe spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
lHandle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module standing with stud bolt side setting bottom.
lConduct self-diagnosis to check entire SRS for proper function after replacing any components.
lAfter air bag inflates, the front instrument panel assembly should be replaced if damaged.
Trouble Diagnosis PrecautionEHS000BI
Whenyoureadwiringdiagrams,refertothefollowings:
l“HOW TO READ WIRING DIAGRAMS” in GI section
lPG-2, "POWER SUPPLY ROUTING"in PG section
When you perform trouble diagnosis, refer to the followings:
l“HOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNOSIS” in GI section
l“HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT” in GI section
Check for any service bulletins before servicing the vehicle.

TF-44
TROUBLE DIAGNOSIS
Specifications defined by CONSULT-II
Check air pressure of tire under normal condition.Items to be monitored ContentsData monitor
(Reference)
Check points when result
was malfunctioning ConditionReference values in
normal operation
DECEL G-SENSOR (G)G-sensor operating
conditionWith vehicle stopped
on flat road.±0.15 G G-sensor and harness
THRTL POS SEN (V)Throttle valve open/
close conditionClosed throttle to wide
open throttleWhen closed throttle:
Approx. 0.5V
Throttle position sensor
and harness
When wide open throt-
tle: Approx. 4.0 V
ENGINE SPEED SIG
(STOP/RUN)With engine runningEngine speed below
400 rpmSTOP
Engine speed signal circuit
Engine speed 400 rpm
or higherRUN
E-TS ACTUATOR (ON/OFF)4WD actuator relay
(4WD actuator relay)
activation conditionVehicle stop (Ignition
switch ON)OFF4WD actuator relay (4WD
actuator relay) and har-
ness
Engine running ON
G-SEN VOLT (V)G-sensor power sup-
ply conditionWith vehicle stopped
on flat road.Approx. 8V (reference
value)G-sensor and harness
BATTERY VOL (V)Battery voltage sup-
plied to control unitIgnition switch ON Approx. 10 - 16 VControl unit power supply
circuit
4WDWARNLAMP(ON/
OFF)4WD warning lamp
ON condition4WD warning lamp
ONON4WD warning lamp and
harness
Refer to "4WD Warning
Lamp". 4WD warning lamp
OFFOFF
4WD MODE SW
(AUTO LOCK 2WD)Input condition of
4WD mode change-
over switchEngine running, vehi-
cle stopped, switch
pressed–4WD mode change-over
switch and circuit
4WD MODE MONI (AUTO,
LOCK, 2WD)Output condition of
4WD mode indicator
lamp signalEngine running, vehi-
cle stoppedUsing 4WD mode
change-over switch4WD mode indicator lamp
and circuit
DIS-TIRE MONI (mm)Improper size tire
installed condition–0-4mm,4-8mm,
8mm -Front/Rear tire size differ-
ence, wear condition
PBRAKESW(ON/OFF)Parking brake switch
operating conditionParking brake
depressedON
Parking brake switch and
harness
Parking brake not
depressedOFF
SPEED MTR O/P (km/h)Output condition of
vehicle speed for
speedometerWhile vehicle is
stopped0km/h(0MPH)
Speedometer and harness
Vehicle runningAlmost in accordance
with the wheel speed
sensor display
ABS 4WD COMMEPS/TCS/ABS con-
trol unit operating con-
ditionIgnition switch ON OKESP/TCS/ABS control unit
and circuit
CAN COMM (OK-NG)CAN communication
signal conditionIgnition switch ON OKCAN communication sig-
nal (OK-NG) condition is
displayed

ROAD WHEEL
WT-3
C
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F
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MA
B
WT
ROAD WHEELPFP:40300
InspectionEES000J2
ALUMINUM WHEEL
1. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.
a. Remove tire from aluminum wheel and mount on a tire balance
machine.
b. Set dial indicator as shown in the illustration.
STEEL WHEEL
1. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.
a. Remove tire from steel wheel and mount wheel on a tire balance
machine.
b. Set two dial indicators as shown in the illustration.
c. Set each dial indicator to 0.
d. Rotate wheel and check dial indicators at several points around
the circumference of the wheel.
e. Calculate runout at each point as shown below.
f. Select maximum positive runout value and the maximum nega-
tive value.
Add the two values to determine total runout.
In case a positive or negative value is not available, use the
maximum value (negative or positive) for total runout.
If the total runout value exceeds the limit, replace steel wheel.Wheel runout (Dial indicator value)
:Refer toWT-5, "
SERVICE DATA AND SPECIFICA-
TIONS (SDS)"SFA975B
Radial runout = (A+B)/2 :0.5 mm (0.020 in)
Lateral runout = (C+D)/2 :0.8 mm (0.031 in)
Wheel runout :Refer toWT-5, "
SERVICE DATA AND
SPECIFICATIONS (SDS)"SFA981B

WT-4
ROAD WHEEL TIRE ASSEMBLY
ROAD WHEEL TIRE ASSEMBLY
PFP:40300
Balancing Wheels (Bonding Weight Type)EES000J5
REMOVAL
1. Remove inner and outer balance weights from the road wheel.
CAUTION:
Be careful not to scratch the road wheel during removal procedures.
2. Using releasing agent, remove double-faced adhesive tape from the road wheel.
CAUTION:
Be careful not to scratch the road wheel during removal.
lAfter removing double-faced adhesive tape, wipe clean traces of releasing agent from the road wheel.
WHEEL BALANCE ADJUSTMENT
lIf a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting,
select and adjust a drive-in weight mode suitable for road wheels.
1. Set road wheel on wheel balancer using the center hole as a guide. Start the tire balance machine.
2. When inner and outer unbalance values are shown on the wheel balancer indicator, multiply outer unbal-
ance value by 1.6 to determine balance weight that should be used. Select the outer balance weight with
a value closest to the calculated value above and install it to the designated outer position of, or at the
designated angle in relation to the road wheel.
CAUTION:
lDo not install the inner balance weight before installing the outer balance weight.
lBefore installing the balance weight, be sure to clean the mating surface of the road wheel.
Indicated unbalance value´5/3 = balance weight to be installed
Calculation example:
23 g (0.81 oz)´5/3 = 38.33 g (1.35 oz) = 40 g (1.41 oz) balance
weight (closer to calculated balance weight value)
Note that balance weight value must be closer to the calculated bal-
ance weight value.
Example:
37.4=35g(1.23oz)
37.5=40g(1.41oz)
RotationEES000J3
lAfter rotating the tires, adjust the tire pressure.
lRetighten the wheel nuts when the vehicle has been driven for
1,000 km (600 miles) (also in cases of a flat tire, etc.).
CAUTION:
When installing wheels, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
SMA054D
Tightening torque of wheel nut:
98 - 118N·m (10 - 12 kg-m, 72 - 87 ft-lb)
SMA829C