2004 INFINITI QX56 seats

CYLINDER HEAD
EM-63
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Revision: August 20072004 QX56
7. Remove valve oil seal using Tool.
8. Replace valve seat if necessary. Refer to EM-68, "
VALVE SEAT REPLACEMENT" .
9. Replace valve guide if necessary. Refer to EM-68, "
VALVE SEAT REPLACEMENT" .
10. Remove spark plug tube, as necessary.

Remove spark plug tube out of cylinder head using suitable tool.
CAUTION:

Take care not to damage cylinder head.

Once removed, spark plug tube will be deformed and cannot be reused. Do not remove it unless
absolutely necessary.
ASSEMBLY
1. Install the valve guide if necessary. Refer to EM-66, "VALVE GUIDE REPLACEMENT" .
2. Install the valve seat if necessary. Refer to EM-68, "
VALVE SEAT REPLACEMENT" .
3. Install valve oil seal using Tool.

Apply new engine oil on new valve oil seal joint and seal lip.

Install valve oil seal to specified height "H".
4. Install valves in their original position.
5. Install valve spring seats.
6. Install valve springs.

Install narrow pitch end (Paint mark side) to cylinder head
side.
7. Install valve spring retainers.Tool number : KV10107902 (J-38959)
WBIA0478E
Tool number : KV10115600 (J-38958)
Height "H" (Without valve spring seat installed)
Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
WBIA0490E
SEM 08 5D

EM-68Revision: August 2007
CYLINDER HEAD
2004 QX56
VALVE SEAT CONTACT

After confirming that the dimensions of valve guides and valves
are within specifications, perform this procedure.

Apply prussian blue (or white lead) onto contacting surface of
valve seat to check the condition of the valve contact on the sur-
face.

Check if the contact area band is continuous all around the cir-
cumference.

If not, grind to adjust valve fitting and check again. If the contact-
ing surface still has NG conditions even after the re-check,
replace valve seat.
VALVE SEAT REPLACEMENT
When valve seat is removed, replace with oversized (0.5 mm, 0.020 in) valve seat.
1. Bore out old seat until it collapses. Boring should not continue beyond the bottom face of the seat recess
in cylinder head. Set the machine depth stop to ensure this.
2. Ream cylinder head recess diameter for service valve seat.

Be sure to ream in circles concentric to the valve guide center.

This will enable valve seat to fit correctly.
3. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.
4. Provide valve seats cooled well with dry ice. Force fit valve seat into cylinder head.
CAUTION:

Avoid directly touching cold valve seats.

Cylinder head contains heat. When working, wear protective equipment to avoid getting burned.
5. Finish seat to the specified dimensions using suitable tool. Refer
to EM-103, "
Valve Seat" .
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cut in a single drive. Improper
pressure on the cutter or cutting many different times may
result in stage valve seat.
SBIA0322E
Oversize [0.5 mm (0.020 in)] (Service):
Intake : 38.500 - 38.516 mm (1.5157 - 1.5164 in)
Exhaust : 32.700 - 32.716 mm (1.2874 - 1.2880 in)
SEM 79 5A
SEM 00 8A
SEM 93 4C

CYLINDER BLOCK
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14. Install the connecting rod cap.

Match the stamped cylinder number marks on the connecting
rod with those on the cylinder cap to install.
15. Tighten the connecting rod bolts using Tool.

Apply engine oil to the threads and seats of the connecting
rod bolts.

After tightening the bolts, make sure that the crankshaft
rotates smoothly.

Check the connecting rod side clearance. Refer to EM-89, "CONNECTING ROD SIDE CLEARANCE"
16. Install knock sensor.
CAUTION:
If the knock sensor is dropped, replace it with a new one.

Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of the knock sen-
sor.

Install it with its connector facing the center of cylinder block
side.

Do not tighten the knock sensor bolts while holding the con-
nector.

Make sure that the knock sensor does not interfere with other
parts.

Position sub-harness as shown before installing intake mani-
fold.
17. Installation of the remaining components is in the reverse order of removal.
18. Remove engine assembly from engine stand.
KBIA2536E
Tool number : KV10112100 (BT-8653-A)
Connecting rod bolts
Step 1 : 19.6 N·m (1.5 kg-m, 11 ft-lb)
Step 2 : 90° clockwise
WBIA0586E
KBIA2493E
KBIA2549E

GW-1
GLASSES, WINDOW SYSTEM & MIRRORS
I BODY
CONTENTS
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SECTION GW
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GW
Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Handling for Adhesive and Primer ........................... 3
Trouble Diagnosis Precaution .................................. 3
PREPARATION ........................................................... 4
Special Service Tool ................................................. 4
Commercial Service Tool ......................................... 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 5
Work Flow ................................................................ 5
CUSTOMER INTERVIEW ..................................... 5
DUPLICATE THE NOISE AND TEST DRIVE ....... 6
CHECK RELATED SERVICE BULLETINS ........... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 6
REPAIR THE CAUSE ........................................... 6
CONFIRM THE REPAIR ....................................... 7
Generic Squeak and Rattle Troubleshooting ........... 7
INSTRUMENT PANEL .......................................... 7
CENTER CONSOLE ............................................. 7
DOORS ................................................................. 7
TRUNK .................................................................. 8
SUNROOF/HEADLINER ....................................... 8
OVERHEAD CONSOLE (FRONT AND REAR) ..... 8
SEATS ................................................................... 8
UNDERHOOD ....................................................... 8
Diagnostic Worksheet .............................................. 9
WINDSHIELD GLASS ...............................................11
Removal and Installation .........................................11
REMOVAL ............................................................11
INSTALLATION ....................................................11
REAR WINDOW GLASS AND MOLDING ............... 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 14
POWER WINDOW SYSTEM .................................... 15
Component Parts and Harness Connector Location ... 15
System Description ................................................ 15
MANUAL OPERATION ....................................... 16AUTO OPERATION ............................................. 18
POWER WINDOW SERIAL LINK ....................... 18
POWER WINDOW LOCK ................................... 18
RETAINED POWER OPERATION ...................... 18
ANTI-PINCH SYSTEM ........................................ 18
POWER WINDOW CONTROL BY THE FRONT
DOOR LOCK ASSEMBLY LH (KEY CYLINDER
SWITCH) ............................................................. 19
CAN Communication System Description .............. 19
Schematic ............................................................... 20
Wiring Diagram — WINDOW — ............................. 22
Terminal and Reference Value for Main Power Win-
dow and Door Lock/Unlock Switch ......................... 30
Terminal and Reference Value for Power Window
and Door Lock/Unlock Switch RH .......................... 30
Terminal and Reference Value for BCM ................. 32
Work Flow ............................................................... 33
CONSULT-II Function (BCM) ................................. 33
CONSULT-II INSPECTION PROCEDURE .......... 33
ACTIVE TEST ..................................................... 34
WORK SUPPORT ............................................... 34
DATA MONITOR ................................................. 34
Trouble Diagnoses Symptom Chart ....................... 36
BCM Power Supply and Ground Circuit Check ...... 38
Main Power Window and Door Lock/Unlock Switch
Power Supply and Ground Circuit Check ............... 39
Power Window and Door Lock/Unlock Switch RH
Power Supply and Ground Circuit Check ............... 40
Front Power Window Motor LH Circuit Check ........ 41
Front Power Window Motor RH Circuit Check ....... 42
Limit Switch Circuit Check Front LH ....................... 43
Limit Switch Circuit Check Front RH ...................... 44
Encoder Circuit Check Front LH ............................. 46
Encoder Circuit Check Front RH ............................ 48
Door Switch Check ................................................. 50
Front Door Lock Assembly LH (Key Cylinder Switch)
Check ..................................................................... 52
Power Window Serial Link Check Front LH and RH ... 54
Rear Power Window Control Unit LH or RH Power
Supply and Ground Circuit Check .......................... 56

GW-8
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Revision: August 20072004 QX56
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The 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/HEADLINER
Noises in the sunroof/headliner 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. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner 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.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the console panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the console at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lense loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. 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. 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 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.

IP-1
INSTRUMENT PANEL
I BODY
CONTENTS
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SECTION IP
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Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 4
Work Flow ................................................................ 4
CUSTOMER INTERVIEW ..................................... 4
DUPLICATE THE NOISE AND TEST DRIVE ....... 5
CHECK RELATED SERVICE BULLETINS ........... 5
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 5
REPAIR THE CAUSE ........................................... 5
CONFIRM THE REPAIR ....................................... 6
Generic Squeak and Rattle Troubleshooting ........... 6INSTRUMENT PANEL .......................................... 6
CENTER CONSOLE ............................................. 6
DOORS ................................................................. 6
TRUNK .................................................................. 7
SUNROOF/HEADLINING ..................................... 7
OVERHEAD CONSOLE (FRONT AND REAR) ..... 7
SEATS ................................................................... 7
UNDERHOOD ....................................................... 7
Diagnostic Worksheet ............................................... 8
INSTRUMENT PANEL ASSEMBLY ......................... 10
Removal and Installation ........................................ 10
REMOVAL AND INSTALLATION ........................ 12
Disassembly and Assembly .................................... 15
CENTER CONSOLE ........................................... 15
Disassembly and Assembly .................................... 17
REAR CONSOLE ................................................ 17

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
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Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the NISSAN Squeak and Rattle Kit (J-43980) to repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The 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. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner 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.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the console panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the console at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lens loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. 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. 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 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.

IP-16
INSTRUMENT PANEL ASSEMBLY
Revision: August 20072004 QX56
1. Remove instrument lower cover RH. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove glove box assembly. Refer to IP-14, "
Instrument Lower Cover RH and Glove Box" .
3. Remove instrument lower cover LH. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
4. Remove shift knob and A/T console finisher. Refer to IP-13, "
A/T Finisher" .

Remove cup holder insert.

Remove shift indicator.
5. Remove cluster lid D. Refer to IP-12, "
Cluster Lid D" .
6. Disconnect shift cable and electrical harness from shifter.
7. Remove shifter.
8. Remove screws from center console.

Disconnect electrical harnesses.
9. Move front seats forward and remove center console assembly in a rearward direction.
10. Remove tray and mat from console bin.
11. Remove latch from console lid.
12. Remove hinge from console lid. Remove console lid.

Remove console lid mat.
13. Remove console bin.

Disconnect electrical harness from DVD player, if equipped.

Remove hinge from console bin.
14. Remove rear upper finisher.
15. Remove rear cup holder assembly.
16. Remove upper side finishers LH/RH.
17. Remove screws on each side, disconnect clips and remove console covers LH/RH.
18. Remove rear finisher assembly.

Disconnect electrical connectors.
19. Remove power point assembly.
20. Remove mask and storage compartment.
21. Remove console front bracket.
22. Remove heat duct and console rear duct.
23. Remove console rear bracket.
Assembly is in the reverse order of disassembly.
1. Console lid assembly 2. A/T finisher 3. Tray
4. Storage compartment 5. Storage compartment mask 6. Console reinforcement assembly
7. Console front bracket 8. Upper side finisher LH 9. Instrument lower cover LH
10. Console cover LH 11. Rear console duct 12. Power point assembly
13. Rear cup holder assembly 14. Rear finisher assembly 15. Console rear bracket
16. Heat duct 17. Rear upper finisher 18. Console bin mat
19. Console bin 20. Console cover RH 21. Instrument lower cover RH
22. Upper side finisher RH 23. A/T transmission control 24 Mask
25 Cup holder insert