ECU INFINITI QX56 2008 Factory Service Manual

GI-28
< PRECAUTION >
PRECAUTIONS
• To reinstall the rubber hose securely, make sure that hose insertionlength and orientation is correct. (If tube is equipped with hose
stopper, insert rubber hose into tube until it butts up against hose
stopper.)
HOSE CLAMPING
• If old rubber hose is re-used, install hose clamp in its original posi-tion (at the indentation where the old clamp was). If there is a trace
of tube bulging left on the old rubber hose, align rubber hose at
that position.
• Discard old clamps; replace with new ones.
• After installing plate clamps, apply force to them in the direction of the arrow, tightening rubber hose equally all around.
Engine OilsINFOID:0000000001539215
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS
• Avoid prolonged and repeated contact with oils, particularly used engine oils.
• Wear protective clothing, including impervious gloves where practicable.
• Do not put oily rags in pockets.
• Avoid contaminating clothes, pa rticularly underpants, with oil.
• Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu- larly.
• First aid treatment should be obtained immediately for open cuts and wounds.
• Use barrier creams, applying them before each work period, to help the removal of oil from the skin.
• Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepara-
tions containing lanolin replace the natural skin oils which have been removed.
• Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.
• If skin disorders develop, obtain medical advice without delay.
• Where practical, degrease components prior to handling.
• Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.
ENVIRONMENTAL PROTECTION PRECAUTIONS
SMA020D
SMA021D
SMA022D
Revision: March 2010 2008 QX56

SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-43
< BASIC INSPECTION >
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• When inspecting a ground connection follow these rules:
- Remove the ground bolt or screw.
- Inspect all mating surfaces for tarnish, dirt, rust, etc.
- Clean as required to assure good contact.
- Reinstall bolt or screw securely.
- Inspect for “add-on” accessories which may be interfering with the ground circuit.
- If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one eye-
let make sure no ground wires have excess wire insulation.
• For detailed ground distribution information, refer to “Ground Distribution” in PG section.
VOLTAGE DROP TESTS
• Voltage drop tests are often used to find components or circuits which have excessive resistance. A voltage drop in a circuit is caused by a resistance when the circuit is in operation.
• Check the wire in the illustration. When measuring re sistance with DMM, contact by a single strand of wire
will give reading of 0 ohms. This would indicate a good circuit. When the circuit operates, this single strand
of wire is not able to carry the current. The single strand will have a high resistance to the current. This will
be picked up as a slight voltage drop.
• Unwanted resistance can be caused by many situations as follows:
- Undersized wiring (single strand example)
- Corrosion on switch contacts
- Loose wire connections or splices.
• If repairs are needed always use wire that is of the same or larger gauge.
Measuring Voltage Drop — Accumulated Method
• Connect the DMM across the connector or part of the ci rcuit you want to check. The positive lead of the
DMM should be closer to power and the negative lead closer to ground.
• Operate the circuit.
• The DMM will indicate how many volts are being used to “push” current through that part of the circuit.
SGI853
Revision: March 2010 2008 QX56

GI-46
< BASIC INSPECTION >
CONSULT-III CHECKING SYSTEM
CONSULT-III CHECKING SYSTEM
DescriptionINFOID:0000000001539228
• When CONSULT-III is connected with a data link connectorequipped on the vehicle side, it will communicate with the control
unit equipped in the vehicle and then enable various kinds of diag-
nostic tests.
• Refer to “CONSULT-III Operation Manual” for more information.
Function and System ApplicationINFOID:0000000001555032
1 : Hood release handle
2 : Data link connector
ALBIA0047ZZ
Diagnostic test mode Function
ENGINE
TRANSMISSION
ICC
*1
ABS
AIR BAG
IPDM E/R
BCM
METER/M&A
INTELLIGENT KEY
AUTO DRIVE POS.
REARVIEW CAMERA
AIR LEVELIZER MULTI AV
ALL MODE AWD/4WD
*2
HVAC
SONAR
Work support This mode enables a technician to adjust some devic-
es faster and more accurately by following the indica-
tions on CONSULT-III. x - xx - - x - xxxx - - - -
Self-diagnostic Self-diagnostic can be performed quickly. ----x-----------
Self-diagnostic re-
sults Self-diagnostic results can be read and erased quick-
ly.
xxxx - xxxxx - xxxxx
Trouble diagnostic
record Current self-diagnostic results and all trouble diag-
nostic records previously stored can be read.
--- - x--- - -------
Data monitor Input/Output data in the ECM can be read. xxxx - xxxxxxxxxxx
Data monitor (spec)Data monitor specification can be read. x---------------
CAN diagnosis The condition of CAN communication can be indicat-
ed by a topology.
xxxxxxxxxx - - xxx -
CAN diagnosis sup-
port monitor The communication condition of CAN communication
line can be read.
xxxx - xxxxx - - xxx -
Active test Diagnostic Test Mode in which CONSULT-III drives
some actuators apart from the ECMs and also shifts
some parameters in a specified range. x-xx-xx-xx-x- - - -
Function test This mode can show results of self-diagnosis of ECU
with either “OK” or “NG”. For engines, more practical
tests regarding sensors/switches and/or actuators
are available. xxxxx - - - x
-------
DTC & SRT confir-
mation The results of SRT (System Readiness Test) and the
self-diagnosis status/result can be confirmed.
x-x-----x-------
DTC work support The operating condition to confirm Diagnosis Trouble
Codes can be selected. xxx-----x-------
ECM/ECU part num-
ber ECM/ECU part number can be read.
xxxx - - x - xxxxx - xx
ECU discriminated
No. Classification number of a replacement ECU can be
read to prevent an incorrect ECU from being in-
stalled.
----x-----------
Revision: March 2010
2008 QX56

CONSULT-III CHECKING SYSTEMGI-47
< BASIC INSPECTION >
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x : Applicable
*1: With intelligent cruise control
*2: With 4-wheel drive
*3: With security card installed
CONSULT-III Data Link Connector (DLC) CircuitINFOID:0000000001555031
INSPECTION PROCEDURE
If the CONSULT-III cannot diagnose the sys tem properly, check the following items.
NOTE:
The CAN and DDL2 circuits from DLC pins 6, 7 and 14 may be connected to more than one system. A short in
any circuit connected to a control unit in one system may affect CONSULT-III access to other systems.
Passenger AirbagDisplays the STATUS (readiness) of the front passen-
ger air bag. ----x-----------
AV COMM monitor The condition of AV communication can be indicated.------------x---
Configuration Sets control module parame
ters to match vehicle op-
tions. ------x---------
PIN read
*3This mode shows the BCM-specific 5-digit code. ------x---------
Control unit initial-
ization
*3All registered ignition key IDs in NATS components
can be initialized and new IDs can be registered. ------x---------
Diagnostic test
mode Function
ENGINE
TRANSMISSION
ICC
*1
ABS
AIR BAG
IPDM E/R BCM
METER/M&A
INTELLIGENT KEY
AUTO DRIVE POS.
REARVIEW CAMERA AIR LEVELIZER MULTI AV
ALL MODE AWD/4WD
*2
HVAC
SONAR
Symptom Check item
CONSULT-III cannot access
any system. • CONSULT-III DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4)
CONSULT-III cannot access in-
dividual system. (Other sys-
tems can be accessed.) • Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wiring
diagram for each system.)
• Open or short circuit between the system and CONSULT-III DLC (For detailed circuit, refer to wiring diagram for each system.)
• Open or short circuit CAN communication line. Refer to LAN-14, "
Trouble Diagnosis Flow Chart".
Revision: March 2010 2008 QX56

GW-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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CONTENTS
GLASS & WINDOW SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Handling for Adhesive and Primer ............................3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
ON-VEHICLE REPAIR ..................................5
WINDSHIELD GLASS ........................................5
Removal and Installation ..................................... .....5
REAR WINDOW GLASS AND MOLDING .........7
Removal and Installation ..........................................7
FRONT DOOR GLASS AND REGULATOR ......9
Removal and Installation ..........................................9
REAR DOOR GLASS AND REGULATOR .......13
Removal and Installation .........................................13
SIDE WINDOW GLASS ....................................15
Removal and Installation .........................................15
Revision: March 2010 2008 QX56

WINDSHIELD GLASSGW-5
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
WINDSHIELD GLASS
Removal and InstallationINFOID:0000000004882620
REMOVAL
1. Remove inside mirror. Refer to MIR-10, "Removal and Installation".
2. Partially remove the headlining (front edge). Refer to INT-17, "
Removal and Installation".
3. Remove cowl top cover. Refer to EXT-18, "
Removal and Installation".
4. Apply a protective tape around the windshield gl ass to protect the painted surface from damage.
• Remove glass using piano wire or power cutting tool and an inflatable pump bag.
• If the windshield glass is to be reused, mark the body and the glass with mating marks.
WARNING:
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 the 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 ed ge. Small chips may develop into cracks.
INSTALLATION
Installation is in the reverse order of removal.
• Use a genuine NISSAN Urethane Adhesive Kit (if availabl e) 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.
• Inform the customer that the vehicle should rema in stationary until the urethane adhesive has completely
cured (preferably 24 hours). Curing time varies with temperature and humidity.
LIIA0652E
PIIA0186E
Revision: March 2010 2008 QX56

GW-8
< ON-VEHICLE REPAIR >
REAR WINDOW GLASS AND MOLDING
INSTALLATION
Installation is in the reverse order of removal.
GLASS STAY
Disposal
1. Secure glass stay (1) using a vise (C)
2. Using hacksaw (A) slowly make 2 holes in the glass stay (1), innumerical order as shown in the figure
CAUTION:
• When cutting a hole on gl ass stay (1), always cover a
hacksaw using a shop cloth (B) to avoid scattering metal
fragments or oil
• Wear eye protection (safety glasses)
• Wear gloves
A: 20 mm (0.787 In)
B: Cut at the groove
JMKIA3336ZZ
JMKIA3609ZZ
Revision: March 2010 2008 QX56

GW-10
< ON-VEHICLE REPAIR >
FRONT DOOR GLASS AND REGULATOR
NOTE:
If any of the following work has been done, reset the power window motor limit switch.
• Removal and installation of the regulator assembly.
• Removal and installation of the power window motor from the regulator.
• Installation of a new glass window.
• Installation of a new glass run.
Check the label on the power window motor for the part number. If the power window motor part number
matches one of the following, the motor must be removed from the regulator and the limit switch reset using
the "INSTALLATION WITHOUT RESET SWITCH" pr ocedure in "FRONT DOOR GLASS REGULATOR
ASSEMBLY".
• 80730-ZT01A
• 80731-ZT01A
• 80730-ZM70B
• 80731-ZM70B
If the power window motor part number does not match one of the part numbers above, the limit switch can be
reset in the vehicle using the "INSTA LLATION WITH RESET SWITCH" procedure.
NOTE:
• The label can be checked with the power window motor in the vehicle by using a mirror.
• Some of the power window motors with the part num bers above may appear to have a reset switch, but it will
not reset the limit switch.
Fitting Inspection
• Check that the glass is securely fit into the glass run groove.
• Lower the glass slightly [approximately 10 to 20 mm (0 .39 to 0.79 in)] and check that the clearance to the
sash is parallel. If the clearance between the glass and sash is not parallel, loosen the regulator bolts, guide
rail bolts, and glass and guide rail bolts to correct the glass position.
FRONT DOOR GLASS REGULATOR ASSEMBLY
Removal
1. Remove the front door finisher panel. Refer to INT-11, "Removal and Installation".
2. Position aside the vapor barrier.
3. Remove the hole cover over rear glass bolt.
4. Operate the power window main switch to raise/ lower the door window until the glass bolts can be seen.
5. Remove the inside seal.
6. Remove the glass bolts.
7. Raise the front door glass and hold it in place with suitable tool.
8. Disconnect the harness connector fr om the regulator assembly.
9. Remove the bolts and the regulator assembly.
Disassembly And Assembly
Remove the regulator motor from the regulator assembly.
Inspection After Removal
Check the regulator assembly for the following items. If a malfunc-
tion is detected, replace or grease it.
• Wire wear
• Regulator deformation
• Grease condition for each sliding part The arrows in the figure show the application points of the body
grease.
Installation
If any of the following work has been done, reset the power window motor limit switch.
• Removal and installation of the regulator assembly.
LIIA0670E
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FRONT DOOR GLASS AND REGULATORGW-11
< ON-VEHICLE REPAIR >
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• Removal and installation of the power window motor from the regulator.
• Installation of a new glass window.
• Installation of a new glass run.
Check the label on the power window motor for the part number. If the power window motor part number
matches one of the following, the limit switch must be reset using the "INSTALLATION WITHOUT RESET
SWITCH" procedure.
• 80730-ZT01A
• 80731-ZT01A
• 80730-ZM70B
• 80731-ZM70B
If the power window motor part number does not match one of the part numbers above, the limit switch must
be reset using the "INSTALLATION WITH RESET SWITCH" procedure.
NOTE:
Some of the power window motors with the part num bers above may appear to have a reset switch, but it will
not reset the limit switch.
INSTALLATION WITHOUT RESET SWITCH - (Motors listed above)
Check the label on the power window motor for the pa rt number. If the power window motor part number does
not match one of the above, use the "INS TALLATION WITH RESET SWITCH" procedure.
NOTE:
Some of the power window motors may appear to have a re set switch, but it will not reset the limit switch.
1. Connect the door harness connector to the power window motor, and rotate the motor more than 5 turns
in the glass raising (up) direction.
2. Install the power window motor onto the regulator.
3. Install the regulator assembly into the door and secure regulator assembly with the nuts and bolt.
4. Install the glass into the door and align with the regulator, then install the glass bolts.
5. Raise the glass to the top position. CAUTION:
Do not operate the glass automatical ly to raise the glass to the top.
6. Reposition the vapor barrier.
7. Install the front door finisher panel. Refer to INT-11, "
Removal and Installation".
INSTALLATION WITH RESET SWITCH - (Motors not listed above)
1. Install the power window motor onto the regulator.
2. Install the regulator assembly into the door and secure regulator assembly with the nuts and bolt.
3. Connect the door harness connector to the power window motor.
4. Install the glass into the door and align with the regulator, then install the glass bolts.
Power Window Motor Up Direction
• LH motor rotate counterclockwise
• RH motor rotate clockwise
Regulator assembly nuts
and bolt : 7.5 N·m (0.77 kg-m, 66 in-lb)
Glass bolts : 6.1 N·m (0.62 kg-m, 54 in-lb)
Regulator assembly nuts
and bolt : 7.5 N·m (0.77 kg-m, 66 in-lb)
Glass bolts : 6.1 N·m (0.62 kg-m, 54 in-lb)
Revision: March 2010 2008 QX56

REAR DOOR GLASS AND REGULATORGW-13
< ON-VEHICLE REPAIR >
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REAR DOOR GLASS AND REGULATOR
Removal and InstallationINFOID:0000000001608356
REAR DOOR GLASS
Removal
1. Remove the rear door finisher. Refer to INT-11, "Removal and Installation".
2. Temporarily reconnect the power window switch.
3. Operate the power window switch to raise/lower the door win- dow until the glass bolts can be seen.
4. Partially remove the inside seal.
5. Remove the glass run from the partition glass.
6. Remove the partition sash bolt (lower) and screw (upper) to remove the sash.
7. Remove the glass bolts and glass.
Installation
Installation is in the reverse order of removal.
Fitting Inspection
• Check that the glass is securely fit into the glass run groove.
• Lower the glass slightly [approximately 10 to 20 mm (0 .39 to 0.79 in)], and check that the clearance to the
sash is parallel. If the clearance between the glass and sash is not parallel, loosen the regulator bolts, guide
rail bolts, and glass and carrier plate bolts to correct the glass position.
REAR DOOR GLASS REGULATOR
Removal
WIIA0942E
SIIA0290E
Glass bolts : 6.1 N·m (0.62 kg-m, 54 in-lb)
Revision: March 2010 2008 QX56