ECU INFINITI QX56 2011 Factory Service Manual

FRONT COMBINATION LAMPEXL-127
< REMOVAL AND INSTALLATION > [XENON TYPE]
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Disassembly and AssemblyINFOID:0000000006369466
DISASSEMBLY
1. Rotate resin cap counterclockwise and unlock it.
2. Rotate xenon bulb socket counterclockwise and unlock it.
3. Remove retaining spring lock. Remove xenon bulb.
4. Remove bumper bracket.
5. Rotate parking lamp bulb socket counterclockwise and unlock it.
6. Remove bulb from parking lamp bulb socket.
7. Rotate front turn signal lamp bulb socket counterclockwise and unlock it.
8. Remove bulb from front turn signal lamp bulb socket.
9. Rotate side marker lamp bulb socket counterclockwise and unlock it.
10. Remove bulb from bulb socket.
ASSEMBLY
Assemble in the reverse order of disassembly.
CAUTION:
 HID control unit and xenon bu lb socket cannot be disassembled.
 After installing the bulb, install the resin cap and the bulb socket securely for watertightness.
Revision: 2010 May2011 QX56

EXT-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION EXT
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CONTENTS
EXTERIOR
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
3
Precaution for Procedure without Cowl Top Cover ......4
Precaution for Work ..................................................4
PREPARATION ............................................5
PREPARATION .............................................. .....5
Commercial Service Tools ................................. ......5
SYMPTOM DIAGNOSIS ...............................6
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ........................ ........................................
6
Work Flow ........................................................... ......6
Inspection Procedure ................................................8
Diagnostic Worksheet .............................................10
REMOVAL AND INSTALLATION ...............12
FRONT BUMPER ........................................... ....12
Exploded View .................................................... ....12
Removal and Installation .........................................13
REAR BUMPER .................................................16
Exploded View .................................................... ....16
Removal and Installation .........................................17
FRONT GRILLE .................................................19
Exploded View .................................................... ....19
Removal and Installation .........................................19
COWL TOP .........................................................21
Exploded View .................................................... ....21
Removal and Installation .........................................21
FENDER PROTECTOR ......................................23
FENDER PROTECTOR ......................................... ....23
FENDER PROTECTOR : Exploded View ...............23
FENDER PROTECTOR : Removal and Installa-
tion ...........................................................................
23
REAR WHEEL HOUSE PROTECTOR .................. ....23
REAR WHEEL HOUSE PROTECTOR : Exploded
View .........................................................................
24
REAR WHEEL HOUSE PROTECTOR : Removal
and Installation ........................................................
24
FLOOR SIDE FAIRING .....................................25
Exploded View .........................................................25
Removal and Installation .........................................25
OVER FENDER .................................................26
Exploded View .........................................................26
Removal and Installation .........................................26
ROOF RAIL .......................................................29
Exploded View .........................................................29
Removal and Installation .........................................29
ROOF SIDE MOLDING .....................................31
Exploded View .........................................................31
Removal and Installation .........................................31
DOOR OUTSIDE MOLDING .............................32
Exploded View .........................................................32
Removal and Installation .........................................32
DOOR PARTING SEAL ....................................34
Exploded View .........................................................34
Removal and Installation .........................................34
SILL MOLDING .................................................36
Exploded View .........................................................36
Removal and Installation .........................................36
DOOR SASH COVER .......................................37
Exploded View .........................................................37
Removal and Installation .........................................37
Revision: 2010 May2011 QX56

SQUEAK AND RATTLE TROUBLE DIAGNOSESEXT-7
< SYMPTOM DIAGNOSIS >
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If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or lo cation of the noise. This information can be used to
duplicate the same conditions when the repair is reconfirmed.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following items:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-cl utch on M/T models, drive position on A/T models).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
 Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
 If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, che ck ASIST for Technical Service Bulletins (TSBs) related
to the concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Chassis ear: J-39570, engine ear, and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
 Removing the component(s) in the area that is / are suspected to be the cause of the noise.
Do not use too much force when removing clips and fasteners, otherwise clips and fasteners can be broken
or lost during the repair, resulting in the creation of new noise.
 Tapping or pushing/pulling the component(s) that is / are suspected to be the cause of the noise.
Do not tap or push/pull the component(s) with excessive force, otherwise the noise is eliminated only tempo-
rarily.
 Feeling for a vibration by hand by touching the component(s ) that is / are suspected to be the cause of the
noise.
 Placing a piece of paper between components that are suspected to be the cause of the noise.
 Looking for loose components and contact marks. Refer to EXT-8, "
Inspection Procedure".
REPAIR THE CAUSE
 If the cause is a loose component, tighten the component securely.
 If the cause is insufficient clearance between components:
- Separate components by repositioning or loosening and retightening the components, if possible.
- Insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape, or ure-
thane tape. A NISSAN Squeak and Rattle Kit (J-43980) is available through the authorized NISSAN Parts
Department.
CAUTION:
Never use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
The following materials are contained in the NISSA N Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
 76268-9E005: 100 ×135 mm (3.937 ×5.315 in)
 76884-71L01: 60 ×85 mm (2.362 ×3.346 in)
 76884-71L02: 15 ×25 mm (0.591 ×0.984 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
 73982-9E000: 45 mm (1.772 in) thick, 50 ×50 mm (1.969 ×1.969 in)
 73982-50Y00: 10 mm (0.394 in) thick, 50 ×50 mm (1.969 ×1.969 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.181 in) thick, 30 ×50 mm (1.181 ×1.969in)
FELT CLOTHTAPE
Revision: 2010 May2011 QX56

SQUEAK AND RATTLE TROUBLE DIAGNOSESEXT-9
< SYMPTOM DIAGNOSIS >
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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, se curing, or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof / headlining area can of ten be traced to one of the following items:
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.
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 duplic ated when verifying and isolating the cause of the
noise.
Causes of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The 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 thes e 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 c an usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
Revision: 2010 May2011 QX56

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< REMOVAL AND INSTALLATION >
COWL TOP
 EPT sealer
INSTALLATION
Note the following items and then, install in the reverse order of removal.
CAUTION:
 When installing cowl top cover, check that blind clips are securely fitted in panel holes on body, and
then press them in.
 Always replace cowl top cover EPT sealer with a new one when installing old cowl top cover.
 After installing, perform adjustment of wiper arms. Refer to WW-66, "
Adjustment".
Revision: 2010 May2011 QX56

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< REMOVAL AND INSTALLATION >
OVER FENDER
INSTALLATION
Install in the reverse order of removal.
CAUTION:
 When installing, check visually the over fender and the clips, then replace them with new parts if
they have been damaged.
 When installing over fender, ch eck that blind clips are securely fi tted in panel holes on body, and
then press them in.
Revision: 2010 May2011 QX56

DOOR PARTING SEALEXT-35
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 When installing, check visually th e clips, then replace them with new parts if they have been dam-
aged.
 When installing door parting seal, check that blin d clips are securely fitted in panel holes on body,
and then press them in.
 Always replace double-sided tape with a new one, if door parting seal.
Revision: 2010 May2011 QX56

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< REMOVAL AND INSTALLATION >
SILL MOLDING
SILL MOLDING
Exploded ViewINFOID:0000000006367621
Removal and InstallationINFOID:0000000006367622
REMOVAL
1. Fully open front and rear door.
2. Disengage sill molding (1) fixing clips with a remover tool (A),and then remove sill molding.
CAUTION:
 Disengage the clips slowly and carefully.
 Never pull the sill molding strongly.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
 When installing, check visually th e sill molding and the clips, then replace them with new parts if
they have been damaged.
 When installing the sill molding, check that blind clips are secure ly fitted in panel holes on body, and
then press them in.
1. Sill molding 2. Double-sided tape
[t: 1.2 mm (0.047) in]
Refer to GI-4, "
Components" for symbols in the figure.
JMKIA5380ZZ
: Clip
JMKIA2029ZZ
Revision: 2010 May2011 QX56

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< REMOVAL AND INSTALLATION >
DOOR SASH COVER
2. Insert a remover tool (A) between front door sash cover (1) anddoor panel, cut double-sided tape using a cutter (B) while lifting
front door sash cover, and remove front door sash cover.
CAUTION:
 Use a remover tool which is made of a material that doesnot damage door panel.
 Never lift front door sash cover with excessive force.
Installation
Note the following items, and then install in the reverse order of removal.
CAUTION:
 When installing, slid e and install front door sash cover (2)
from door rear side, so that front door outside molding (1) is
not deformed.
 Replace double-sided tape on back of front door sash cover with a new double-sided adhesive tape
if front door sash cover is reused.
 Replace EPT sealer of front door sash cover with a new EPT sealer if front door sash cover is
reused.
 Remove double-sided adhesive ta pe remaining on body and back of front door sash cover using
double-sided adhesive tape remover wh en removing front door sash molding.
 Install after cleaning adhesive parts of doo r side and back of front door sash cover.
 To secure contact, do not wash vehicle within 24 hours after installation.
REAR DOOR SASH COVER
Removal
1. Remove rear door sash cover fixing clips.
2. Insert a remover tool (A) between rear door sash cover (1) and
door panel, cut double-sided tape using a cutter (B) while lifting
rear door sash cover, and remove rear door sash cover.
CAUTION:
 Never use an item as a remover tool that could damagedoor panel.
 Never lift rear door sash cover with excessive force.
Installation
Note the following items, and install in the reverse order of removal.
CAUTION:
JMKIA2034ZZ
JMKIA5005ZZ
JMKIA2034ZZ
Revision: 2010 May2011 QX56

DOOR SASH COVEREXT-39
< REMOVAL AND INSTALLATION >
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 When installing, slide and inst all rear door sash cover (2) from
door front, so that rear door outside molding (1) is not
deformed.
 Replace double-sided adhesive tape on back of r ear door sash cover with a new double-sided adhe-
sive tape if rear door sash cover is reused.
 Replace EPT sealer of rear door sash cover with a new EPT sealer if rear door sash cover is reused.
 Remove double-sided adhesive tape remaining on bo dy and back of rear door sash cover using dou-
ble-sided adhesive tape remover when removing rear door sash cover.
 Install after cleaning adhesive parts of d oor side and back of rear door sash cover.
 To secure contact, do not wash vehicle within 24 hours after installation.
JMKIA5007ZZ
Revision: 2010 May2011 QX56