2004 INFINITI QX56 Air

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.

WINDSHIELD GLASS
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WINDSHIELD GLASSPFP:72712
Removal and InstallationEIS002UL
REMOVAL
1. Remove inside mirror. Refer to GW-77, "Removal and Installation" .
2. Partially remove the headlining (front edge). Refer to EI-37, "
HEADLINING" .
3. Remove cowl top cover. Refer to EI-18, "
Removal and Installation" .
4. Apply a protective tape around the windshield glass to protect the painted surface from damage.

Remove glass using piano wire or power cutting tool and an inflatable pump bag.

If a windshield glass is to be reused, mark the body and the glass with mating marks.
WA RN ING:
When cutting the glass from the vehicle, always wear safety glasses and heavy gloves to help prevent
glass splinters from entering your eyes or cutting your hands.
CAUTION:

When a windshield glass is to be reused, do not use a cutting knife or power cutting tool.

Be careful not to scratch the glass when removing.

Do not set or stand glass on its edge. Small chips may develop into cracks.
INSTALLATION

Use a genuine NISSAN Urethane Adhesive Kit (if available) or equivalent and follow the instructions fur-
nished with it.

While the urethane adhesive is curing, open a door window. This will prevent the glass from being forced
out by passenger compartment air pressure when a door is closed.

The molding must be installed securely so that it is in position and leaves no gap.
LIIA0652E
PIIA0186E

GW-12
WINDSHIELD GLASS
Revision: August 20072004 QX56

Inform the customer that the vehicle should remain stationary until the urethane adhesive has completely
cured (preferably 24 hours). Curing time varies with temperature and humidity.

Install parts removed.
WAR NIN G:

Keep heat and open flames away as primers and adhesive are flammable.

The materials contained in the kit are harmful if swallowed, and may irritate skin and eyes. Avoid
contact with the skin and eyes.

Use in an open, well ventilated location. Avoid breathing the vapors. They can be harmful if
inhaled. If affected by vapor inhalation, immediately move to an area with fresh air.

Driving the vehicle before the urethane adhesive has completely cured may affect the perfor-
mance of the windshield in case of an accident.
CAUTION:

Do not use an adhesive which is past its usable term. Shelf life of this product is limited to six
months after the date of manufacture. Carefully adhere to the expiration or manufacture date
printed on the box.

Keep primers and adhesive in a cool, dry place. Ideally, they should be stored in a refrigerator.

Do not leave primers or adhesive cartridge unattended with their caps open or off.

The vehicle should not be driven for at least 24 hours or until the urethane adhesive has com-
pletely cured. Curing time varies depending on temperature and humidity. The curing time will
increase under lower temperature and lower humidity.
Repairing Water Leaks for Windshield
Leaks can be repaired without removing and reinstalling glass.
If water is leaking between the urethane adhesive material and body or glass, determine the extent of leakage.
This can be done by applying water to the windshield area while pushing glass outward.
To stop the leak, apply primer (if necessary) and then urethane adhesive to the leak point.
LIIA1115E

POWER WINDOW SYSTEM
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Work FlowEIS002UU
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-15, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction.
Refer to GW-36, "
Trouble Diagnoses Symptom Chart" .
4. Does power window system operate normally? Yes, GO TO 5, If No, GO TO 3.
5. INSPECTION END.
CONSULT-II Function (BCM)EIS002UV
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL)”.
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORT Changes setting of each function.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
BBIA0369E
BCIA0029E

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POWER WINDOW SYSTEM
Revision: August 20072004 QX56
Trouble Diagnoses Symptom ChartEIS0 02 UW

Check that other systems using the signal of the following systems operate normally.
Symptom Repair order Refer to page
None of the power windows can be operated using any switch1. BCM power supply and ground circuit checkGW-38
2. Main power window and door lock/unlock
power supply and ground circuit checkGW-39
3. Power window serial link check front LH and
RHGW-40
Front power window LH alone does not operate1. Main power window and door lock/unlock
power supply and ground circuit checkGW-392. Front power window motor LH circuit checkGW-41
3. Replace main power window and door lock/
unlock switchEI-31
Front power window RH alone does not operate1. Power window and door lock/unlock switch
RH power supply and ground circuit checkGW-402. Power window serial link check front LH and
RHGW-54
3. Front power window motor RH circuit checkGW-42
4. Replace BCMBCS-19
Rear power window LH alone does not operate1. Rear power window control unit LH or RH
power supply and ground circuit checkGW-56
2. Rear power window switch LH or RH power
supply and ground circuit checkGW-58
3. Rear power window motor LH circuit checkGW-58
4. Power window serial link check rear LH and
RHGW-64
5. Replace BCMBCS-19
Rear power window RH alone does not operate1. Rear power window control unit LH or RH
power supply and ground circuit checkGW-56
2. Rear power window switch LH or RH power
supply and ground circuit checkGW-58
3. Rear power window motor RH circuit checkGW-59
4. Power window serial link check rear LH and
RHGW-64
5. Replace BCMBCS-19
Rear power vent windows do not operate 1. Rear power vent window switch circuit checkGW-65
Rear power vent window LH alone does not operate1. Rear power vent window motor LH circuit
checkGW-65
Rear power vent window RH alone does not operate1. Rear power vent window motor RH circuit
checkGW-66
Rear power vent windows do not open1. Rear power vent window relay (OPEN)
checkGW-65
Rear power vent windows do not close1. Rear power vent window relay (CLOSE)
checkGW-65

POWER WINDOW SYSTEM
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Anti-pinch system does not operate normally (Front LH)1. Door window sliding part malfunction

A foreign material adheres to window glass
or glass run rubber.

Glass run rubber wear or deformation.

Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-71
3. Limit switch circuit check front LHGW-43
4. Encoder circuit check front LHGW-46
Anti-pinch system does not operate normally (Front RH)1. Door window sliding part malfunction

A foreign material adheres to window glass
or glass run rubber.

Glass run rubber wear or deformation.

Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-71
3. Limit switch circuit check front RHGW-44
4. Encoder circuit check front RHGW-48
Anti-pinch system does not operate normally (Rear LH)1. Door window sliding part malfunction

A foreign material adheres to window glass
or glass run rubber.

Glass run rubber wear or deformation.

Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-72
3. Limit switch circuit check rear LH or RHGW-60
4. Encoder circuit check rear LH or RHGW-62
Anti-pinch system does not operate normally (Rear RH)1. Door window sliding part malfunction

A foreign material adheres to window glass
or glass run rubber.

Glass run rubber wear or deformation.

Sash is tilted too much, or not enough.—
2. Limit switch adjustingGW-72
3. Limit switch circuit check rear LH or RHGW-60
4. Encoder circuit check rear LH or RHGW-62
Power window retained power operation does not operate properly1. Check the retained power operation mode
setting.GW-342. Door switch checkGW-50
3. Replace BCM.BCS-19
Power windows do not operate by key cylinder switch LH1. Door key cylinder switch LH checkGW-522. Replace main power window and door lock/
unlock switchEI-31
Power window lock switch does not function 1. Power window lock switch circuit checkGW-54
Symptom Repair order Refer to page

GW-38
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
BCM Power Supply and Ground Circuit CheckEIS002UX
1. CHECK FUSE AND FUSIBLE LINK
Check 50A fusible link (letter f located in the fuse and fusible link box).
Check 10A fuse (No. 59, located in the fuse and relay box).
NOTE:
Refer to GW-15, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "PRECAUTIONS" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M18, M20 terminals 11, 38, 70 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 terminal 67 and ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.11 (O) - Ground : Battery voltage
38 (W/L) - Ground : Battery voltage
70 (W/B) - Ground : Battery voltage
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67 (B) - Ground : Continuity should exist.
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POWER WINDOW SYSTEM
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Main Power Window and Door Lock/Unlock Switch Power Supply and Ground
Circuit Check
EIS002UY
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/unlock switch connector D7 terminal 10, D8
terminal 19 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch.
3. Check continuity between main power window and door lock/unlock switch connector D8 terminal 17 and
ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair or replace harness.
3. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 terminals 68, 69 and main power window and door lock/
unlock switch connector D7 terminal 10 and D8 terminal 19.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.10 (W/L) - Ground : Battery voltage
19 (W/R) - Ground : Battery voltage
LIIA2297E
17 (B) - Ground : Continuity should exist.
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68 (W/L) - 10 (W/L) : Continuity should exist.
69 (W/R) - 19 (W/R) : Continuity should exist.
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