2008 NISSAN LATIO service

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
RAX-3
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001703711
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
RAX-4—
RAX-4
RSU-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
BR-4, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Parts interference
Wheel bearing damage
REAR SUSPENSION
TIRES
ROAD WHEEL
BRAKES
STEERING
Symptom REAR AXLENoise×× ×××××
Shake×× ×××××
Vibration×× ×× ×
Shimmy×× ×××××
Shudder× ×××××
Poor quality ride or handling××××××

RAX-4
< SERVICE INFORMATION >
WHEEL HUB
WHEEL HUB
On-Vehicle Inspection and ServiceINFOID:0000000001703712
• Check the axle and suspension parts for excessive play, wear, or damage.
• Shake each rear wheel to check for excessive play as shown.
REAR WHEEL BEARING INSPECTION
• Move wheel hub and bearing assembly in the axial direction by hand. Make sure the axial end play is within
specification.
• Check that the wheel hub bearing operates smoothly.
• Replace the wheel hub assembly if the axial end play exceeds specification, or if the wheel bearing does not
turn smoothly. Refer to RAX-4, "
Removal and Installation".
CAUTION:
The wheel hub assembly does not require maintenance. If any of the following symptoms are noted,
replace the wheel hub assembly.
• Growling noise is emitted from the wheel hub bearing during operation.
• Wheel hub bearing drags or turns roughly.
Removal and InstallationINFOID:0000000001703713
COMPONENTS
REMOVAL
1. Remove tires from vehicle using power tool.
2. Remove wheel sensor from wheel hub and bearing assembly. Refer to BRC-32
.
CAUTION:
SMA525A
Axial end play : 0.05 mm (0.002 in) or less
1. Rear suspension beam 2. Back plate 3. Wheel hub and bearing assembly
WDIA0360E

WHEEL HUB
RAX-5
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Do not pull on wheel sensor harness.
3. Remove the drum brake assembly. Refer to BR-29, "
Removal and Installation of Drum Brake Assembly".
4. Remove wheel hub and bearing assembly bolts, and then remove wheel hub and bearing assembly from
vehicle.
5. If necessary remove back plate, following procedure.
1. Remove parking brake rear cable from back plate. Refer to PB-4
.
2. Separate brake tube from wheel cylinder. Refer to BR-10
.
INSPECTION AFTER REMOVAL
Check for any deformity, cracks, or other damage on the wheel hub assembly, replace if necessary.
CAUTION:
The wheel hub assembly does not require maintenance. If any of the following symptoms are noted,
replace the wheel hub assembly.
• Growling noise is emitted from the wheel hub bearing during operation.
• Wheel hub bearing drags or turns roughly.
INSTALLATION
Installation is in the reverse order of removal.

RAX-6
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel BearingINFOID:0000000001703714
Axial end play0.05 mm (0.002 in) or less

RF-1
BODY
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SECTION RF
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CONTENTS
ROOF
PRECAUTION ...............................................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution .................................................................2
PREPARATION ............................................3
PREPARATION ...................................................3
Commercial Service Tool ..........................................3
SYMPTOM DIAGNOSIS ...............................4
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ................................................................
4
Work Flow .................................................................4
Generic Squeak and Rattle Troubleshooting ............6
Diagnostic Worksheet ...............................................8
FUNCTION DIAGNOSIS ..............................10
TROUBLE DIAGNOSIS .....................................10
Component Parts and Harness Connector Loca-
tion ..........................................................................
10
System Description ..................................................10
CAN Communication System Description ...............12
Wiring Diagram - SROOF - ......................................13
Terminal and Reference Value for BCM ..................14
Terminal and Reference Value for Sunroof Motor
Assembly .................................................................
15
Work Flow ................................................................15
CONSULT-III Function (BCM) .................................15
Work Support ...........................................................16
Active Test ...............................................................16
Data Monitor ............................................................16
Trouble Diagnosis Chart by Symptom .....................16
BCM Power Supply and Ground Circuit Inspection
....
16
Sunroof Switch System Inspection ..........................16
Sunroof Motor Assembly Power Supply and
Ground Circuit Inspection ........................................
18
Door Switch Check ..................................................19
ON-VEHICLE REPAIR .................................21
SUNROOF .........................................................21
Removal and Installation .........................................21
Fitting Adjustment ....................................................26
Inspection ................................................................27

RF-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001704185
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To 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 must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do 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 and/or orange harnesses or har-
ness connectors.
PrecautionINFOID:0000000001704186
• Disconnect both battery cables in advance.
• Do not tamper with or force air bag lid open, as this may adversely affect air bag performance.
• Be careful not to scratch pad and other parts.
• When removing or disassembling any part, be careful not to damage or deform it. Protect parts which may
get in the way with cloth.
• When removing parts with a screwdriver or other tool, protect parts by wrapping them with vinyl or tape.
• Keep removed parts protected with cloth.
• If a clip is deformed or damaged, replace it.
• If an unreusable part is removed, replace it with a new one.
• Tighten bolts and nuts firmly to the specified torque.
• After re-assembly has been completed, make sure each part functions correctly.
• Remove stains in the following way.
Water-soluble stains:
Dip a soft cloth in warm water, and then squeeze it tightly. After wiping the stain, wipe with a soft dry cloth.
Oil stain:
Dissolve a synthetic detergent in warm water (density of 2 to 3% or less), dip the cloth, then clean off the stain
with the cloth. Next, dip the cloth in fresh water and squeeze it tightly. Then clean off the detergent completely.
Then wipe the area with a soft dry cloth.
• Do not use any organic solvent, such as thinner or benzine.

PREPARATION
RF-3
< PREPARATION >
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PREPARATION
PREPARATION
Commercial Service ToolINFOID:0000000001704187
Tool name Description
Engine ear Locating the noise
SIIA0995E

RF-4
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SYMPTOM DIAGNOSIS
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000001704188
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any
customer's comments; refer to IP-8, "
Diagnostic Worksheet". This information is necessary to duplicate the
conditions that exist when the noise occurs.
• The customer may not be able to provide a detailed description or the location of the noise. Attempt to obtain
all the facts and conditions that exist when the noise occurs (or does not occur).
• If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer is
concerned about. This can be accomplished by test driving the vehicle with the customer.
• After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.
• Squeak —(Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard surfaces
= higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping
• Creak—(Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch depen-
dent on materials/often brought on by activity.
• Rattle—(Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
• Knock —(Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.
• Tick—(Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.
• Thump—(Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.
• Buzz—(Like a bumble bee)
Buzz characteristics include high frequency rattle/firm contact.
• Often the degree of acceptable noise level will vary depending upon the person. A noise that you may judge
as acceptable may be very irritating to the customer.
• Weather conditions, especially humidity and temperature, may have a great effect on noise level.
DUPLICATE THE NOISE AND TEST DRIVE
SBT842