ECU NISSAN TEANA 2008 Service Manual

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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Inspection ProcedureINFOID:0000000003940147
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. Cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Never use silicone spray to isolate a squeak or rattle. If the area is saturated with silicone, the recheck
of repair becomes impossible.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the following:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. The areas can usually be insulated with felt cloth tape or insulator foam blocks to
repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the customer.
In addition look for the following:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.

RF-74
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SEATS
When isolating seat noise it is important to note the position the seat is in and the load placed on the seat
when the noise occurs. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

PRECAUTIONS
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003940151
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. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
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 “SRS AIRBAG”.
 Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
Service NoticeINFOID:0000000003812880
 When removing or installing various parts, place a cloth or padding onto the vehicle body to prevent
scratches.
 Handle trim, molding, instruments, grille, etc. carefully during removing or installing. Be careful not to oil or
damage them.
 Apply sealing compound where necessary when installing parts.
 When applying sealing compound, be careful that the sealing compound does not protrude from parts.
 When replacing any metal parts (for example body outer panel, members, etc.), be sure to take rust preven-
tion measures.
Precaution for WorkINFOID:0000000003812881
 When removing or disassembling each component, be careful not to damage or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
 When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component
with a shop cloth or vinyl tape to protect it.
 Protect the removed parts with a shop cloth and keep them.
 Replace a deformed or damaged clip.
 If a part is specified as a non-reusable part, always replace it with new one.
 Be sure to tighten bolts and nuts securely to the specified torque.
 After re-installation is completed, be sure to check that each part works normally.
 Follow the steps below to clean components.
- Water soluble foul: Dip a soft cloth into lukewarm water, and wring the water out of the cloth to wipe the
fouled area.
Then rub with a soft and dry cloth.
- Oily foul: Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%), and wipe
the fouled area.
Then dip a cloth into fresh water, and wring the water out of the cloth to wipe the detergent off. Then rub with
a soft and dry cloth.
 Do not use organic solvent such as thinner, benzene, alcohol, and gasoline.
 For genuine leather seats, use a genuine leather seat cleaner.

SUNROOF MOTOR ASSEMBLY
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Removal and InstallationINFOID:0000000003812888
REMOVAL
CAUTION:
 Before removing sunroof motor, check that glass lid is fully closed.
 After removing sunroof motor, never attempt to rotate sunroof motor assembly as a single unit.
1. Remove the headlining. Refer to INT-54, "
SUNROOF : Removal and Installation".
2. Remove th sunroof motor assembly.
 Disconnect connector (A) from sunroof motor assembly (1).
 Remove sunroof motor assembly mounting screws (B), and
then remove sunroof motor assembly (1).
INSTALLATION
CAUTION:
Before installing the sunroof motor assembly, always place the link and wire assembly in the symmet-
rical and fully closed position.
1. Move the sunroof motor assembly laterally a little so that the gear is completely engaged into the wire on
the sunroof unit assembly and mounting surface becomes parallel. Then secure the sunroof motor
assembly with screws.
2. Install the headlining. Refer to INT-54, "
SUNROOF : Removal and Installation".
JMKIA2492ZZ

SUNSHADE MOTOR ASSEMBLY
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Removal and InstallationINFOID:0000000003812890
REMOVAL
CAUTION:
 Before removing sunshade motor, check that glass lid is fully closed.
 After removing sunshade motor, never attempt to rotate sunshade motor assembly as a single unit.
1. Remove the headlining. Refer to INT-54, "
SUNROOF : Removal and Installation".
2. Remove the sunroof motor assembly.
 Disconnect connector (A) from sunshade motor assembly (1).
 Remove sunshade motor assembly mounting screws (B), and
then remove sunshade motor assembly (1).
INSTALLATION
CAUTION:
Before installing the sunshade motor assembly, always place the link and wire assembly in the sym-
metrical and fully closed position.
1. Move the sunshade motor assembly laterally a little so that the gear is completely engaged into the wire
on the sunroof unit assembly and mounting surface becomes parallel. Then secure the sunshade motor
assembly with screws.
2. Install the headlining. Refer to INT-54, "
SUNROOF : Removal and Installation".
JMKIA2493ZZ

RSU-8
< ON-VEHICLE REPAIR >
REAR LOWER LINK & COIL SPRING
ON-VEHICLE REPAIR
REAR LOWER LINK & COIL SPRING
Exploded ViewINFOID:0000000003811142
Removal and InstallationINFOID:0000000003811143
REMOVAL
1. Remove tires.
2. Set jack under rear lower link.
3. Loosen rear lower link mounting bolt and nut (rear suspension member side), and then remove rear lower
link mounting bolt and nut (axle housing side).
4. Slowly lower jack, then remove upper seat, coil spring and rubber seat from rear lower link.
5. Remove rear lower link mounting bolt and nut (rear suspension member side), and remove rear lower link.
INSTALLATION
Note the following, and install in the reverse order of removal.
 Make sure that upper seat is attached as shown in the figure.
CAUTION:
 Make sure keep the upper seat (1) to place protrusion for
projection (A) on outside of vehicle (lateral direction of vehi-
cle).
 Make sure that the projection (C) on upper seat inside is
securely fitted on the bracket (2) tabs (B).
 Match up rubber seat indentions and rear lower link grooves and
attach.
1. Upper seat 2. Coil spring 3. Rubber seat
4. Rear lower link 5. Rear suspension member 6. Radius rod
7. Front lower link
Refer to GI-4, "
Components" for symbols in the figure.
JPEIB0108GB
: Body
JPEIB0082ZZ

FRONT SEAT BELT
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ON-VEHICLE REPAIR
FRONT SEAT BELT
SEAT BELT RETRACTOR
SEAT BELT RETRACTOR : InspectionINFOID:0000000003848852
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached hardware after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision is minor and the belts show no damage and continue to operate properly. Not
doing so could result in serious personal injury in an accident. Seat belt assemblies not in use during
a collision must also be replaced if either damage or improper operation is noted. Seat belt pre-ten-
sioners must be replaced even if the seat belts are not in use during a frontal collision in which the air
bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:
 The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).
 The seat belt was damaged in an accident (i.e. torn webbing, bent retractor or guide, etc.).
 The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt assembly.
 Anchor bolts are deformed or worn out.
 The seat belt pre-tensioners should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Turn ignition switch ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime
should sound for about six seconds.
b. Fasten driver seat belt. The seat belt warning lamp should turn off and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis with CONSULT-III and air bag warning lamp.
Refer to SRC-10, "
Diagnosis Description".
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Check the shoulder seat belt guide and shoulder belt height adjuster for front seats. Ensure guide swivels
freely and that webbing lays flat and does not bind in guide. Ensure height adjuster operates properly and
holds securely.
5. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Ensure that webbing returns smoothly and completely into the retractor. If
the seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth. Because dirt
build-up in the loops of the upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check that seat belt returns smoothly and completely to the retractor. If the webbing
does not return smoothly, the cause may be an accumulation of dust or dirt. Use the “SEAT BELT TAPE
SET” and perform the following steps.
Inspect the front seat belt through-anchor
1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2. Fix the seat belt at the center pillar webbing opening with a clip or other device.
3. Pass a thin wire through the through-anchor webbing opening. Hold both ends of the wire and pull it
tauntly while moving it up and down several times along the webbing opening surface to remove dirt
stuck there.
4. Any dirt that cannot be removed with the wire can be removed by cleaning the opening with a clean
cloth.
5. Apply tape at the point where the webbing contacts the through-anchor webbing opening.
NOTE:
Apply the tape so that there is no looseness or wrinkling.

SB-6
< ON-VEHICLE REPAIR >
FRONT SEAT BELT
2. Remove the shoulder anchor.
 Remove the center pillar lower and upper garnishes, refer to INT-39, "
Removal and Installation".
 Remove the shoulder anchor fixing anchor nut.
3. Remove the seat belt assembly.
 Disconnect the seat belt pre-tensioner connector.
CAUTION:
 For installing/removing seat belt pre-tensioner connec-
tor, insert thin screwdriver wrapped in tape into notch,
lift lock and remove connector.
 Install connector with lock raised, and push lock into
connector.
 Remove the fixing screw and anchor bolt of the pre-tensioner seat belt retractor.
INSTALLATION
Install in the reverse order of removal.
SEAT BELT BUCKLE
SEAT BELT BUCKLE : InspectionINFOID:0000000003848855
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached hardware after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision was minor and the belts show no damage and continue to operate properly. Not
doing so could result in serious personal injury in an accident. Seat belt assemblies not in use during
a collision must also be replaced if either damage or improper operation is noted. Seat belt pre-ten-
sioners must be replaced even if the seat belts are not in use during a frontal collision in which the air
bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:
 The seat belt is in use at the time of a collision (except for minor collisions and the belts, retractors and buck-
les show no damage and continue to operate properly).
 The seat belt is damaged in an accident (i.e. torn webbing, bent retractor or guide, etc.).
 The seat belt attaching point is damaged in an accident. Inspect the seat belt attaching area for damage or
distortion and repair if necessary before installing a new seat belt assembly.
 Anchor bolts are deformed or worn out.
 The seat belt pre-tensioner must be replaced even if the seat belts are not in use during the collision in which
the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Turn ignition switch ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime
should sound for about six seconds.
b. Fasten driver seat belt. The seat belt warning lamp should turn OFF and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis with CONSULT-III and air bag warning lamp.
Refer to SRC-10, "
Diagnosis Description".
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Repeat steps above if necessary to check the other seat belts.
PHIA0953J

SB-8
< ON-VEHICLE REPAIR >
REAR SEAT BELT
REAR SEAT BELT
SEAT BELT RETRACTOR
SEAT BELT RETRACTOR : InspectionINFOID:0000000003848858
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attached hardware after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision was minor and the belts show no damage and continue to operate properly. Not
doing so could result in serious personal injury in an accident. Seat belt assemblies not in use during
a collision must also be replaced if either damage or improper operation is noted. Seat belt pre-ten-
sioners must be replaced even if the seat belts are not in use during a frontal collision in which the air
bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:
 The seat belt is in use at the time of a collision (except for minor collisions and the belts, retractors and buck-
les show no damage and continue to operate properly).
 The seat belt is damaged in an accident (i.e. torn webbing, bent retractor or guide, etc.).
 The seat belt attaching point is damaged in an accident. Inspect the seat belt attaching area for damage or
distortion and repair if necessary before installing a new seat belt assembly.
 Anchor bolts are deformed or worn out.
 The seat belt pre-tensioners must be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Turn ignition switch ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime
should sound for about six seconds.
b. Fasten driver seat belt. The seat belt warning lamp should turn OFF and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis with CONSULT-III and air bag warning lamp.
Refer to SRC-10, "
Diagnosis Description".
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Check that webbing returns smoothly and completely into the retractor. If the
seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth. Because dirt
build-up in the loops of that upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check the seat belt returns smoothly and completely to the retractor. If the webbing
does not return smoothly, the cause may be an accumulation of dust or dirt. Use the “SEAT BELT TAPE
SET” and perform the following steps.
5. Repeat steps above if necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are Emergency Locking Retractors (ELR) type. In an emergency (sudden stop) the
retractor locks and prevent the webbing from extending any further. All 3-point type seat belt retractors except
the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also called child
restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt is fully
extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt in a
specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat belt
to fully return into the retractor.
Check the seat belt retractors with the following test(s) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check

REAR SEAT BELT
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NISSAN/INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision was minor and the belts show no damage and continue to operate properly. Not
doing so could result in serious personal injury in an accident. Seat belt assemblies not in use during
a collision should also be replaced if either damage or improper operation is noted. Seat belt pre-ten-
sioners should be replaced even if the seat belts are not in use during a frontal collision in which the
air bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:
 The seat belt is in use at the time of a collision (except for minor collisions and the belts, retractors and buck-
les show no damage and continue to operate properly).
 The seat belt is damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.)
 The seat belt attaching point is damaged in an accident. Inspect the seat belt attaching area for damage or
distortion and repair if necessary before installing a new seat belt assembly.
 Anchor bolts are deformed or worn out.
 The seat belt pre-tensioner must be replaced even if the seat belts are not in use during the collision in which
the air bags are deployed.
PRELIMINARY CHECKS
1. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
2. Repeat step above as necessary to check the other seat belts.
SEAT BELT BUCKLE : Exploded ViewINFOID:0000000003860685
SEAT BELT BUCKLE : Removal and InstallationINFOID:0000000003848863
REMOVAL
Remove the seat belt buckle.
 Remove the rear seat cushion. Refer to SE-99, "
Removal and Installation".
1. Anchor bolt 2. Outer seat belt retractor 3. Center seat belt retractor
4. Outer anchor 5. Inner seat belt buckle 6. Outer seat belt buckle
7. Inner anchor 8. Retaining washer
Refer to GI-4, "
Components" for symbols in the figure.
JMHIA0647GB