2007 INFINITI QX56 service

IDENTIFICATION INFORMATION
GI-49
< SERVICE INFORMATION >
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PDrive Type Grade Road wheel Tire Spare tire size
All LE7-Spoke 18x8J Chromium Aluminum Al-
loyP265/70R18 P265/70R18

GI-50
< SERVICE INFORMATION >
TERMINOLOGY
TERMINOLOGY
SAE J1930 Terminology ListINFOID:0000000003531507
All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new
terms, new acronyms/abbreviations and old terms are listed in the following chart.
NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM
Air cleaner ACL Air cleaner
Barometric pressure BARO ***
Barometric pressure sensor-BCDD BAROS-BCDD BCDD
Camshaft position CMP ***
Camshaft position sensor CMPS Crank angle sensor
Canister *** Canister
Carburetor CARB Carburetor
Charge air cooler CAC Intercooler
Closed loop CL Closed loop
Closed throttle position switch CTP switch Idle switch
Clutch pedal position switch CPP switch Clutch switch
Continuous fuel injection system CFI system ***
Continuous trap oxidizer system CTOX system ***
Crankshaft position CKP ***
Crankshaft position sensor CKPS ***
Data link connector DLC ***
Data link connector for CONSULT-II DLC for CONSULT-II Diagnostic connector for CONSULT-II
Diagnostic test mode DTM Diagnostic mode
Diagnostic test mode selector DTM selector Diagnostic mode selector
Diagnostic test mode I DTM I Mode I
Diagnostic test mode II DTM II Mode II
Diagnostic trouble code DTC Malfunction code
Direct fuel injection system DFI system ***
Distributor ignition system DI system Ignition timing control
Early fuel evaporation-mixture heater EFE-mixture heater Mixture heater
Early fuel evaporation system EFE system Mixture heater control
Electrically erasable programmable read
only memoryEEPROM ***
Electronic ignition system EI system Ignition timing control
Engine control EC ***
Engine control module ECM ECCS control unit
Engine coolant temperature ECT Engine temperature
Engine coolant temperature sensor ECTS Engine temperature sensor
Engine modification EM ***
Engine speed RPM Engine speed
Erasable programmable read only memory EPROM ***
Evaporative emission canister EVAP canister Canister
Evaporative emission system EVAP system Canister control solenoid valve
Exhaust gas recirculation valve EGR valve EGR valve

TERMINOLOGY
GI-51
< SERVICE INFORMATION >
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Exhaust gas recirculation control-BPT
valveEGRC-BPT valve BPT valve
Exhaust gas recirculation control-solenoid
valveEGRC-solenoid valve EGR control solenoid valve
Exhaust gas recirculation temperature sen-
sor
EGRT sensor Exhaust gas temperature sensor
EGR temperature sensor
Flash electrically erasable programmable
read only memoryFEEPROM ***
Flash erasable programmable read only
memoryFEPROM ***
Flexible fuel sensor FFS ***
Flexible fuel system FF system ***
Fuel pressure regulator *** Pressure regulator
Fuel pressure regulator control solenoid
valve*** PRVR control solenoid valve
Fuel trim FT ***
Heated Oxygen sensor HO2S Exhaust gas sensor
Idle air control system IAC system Idle speed control
Idle air control valve-air regulator IACV-air regulator Air regulator
Idle air control valve-auxiliary air control
valveIACV-AAC valve Auxiliary air control (AAC) valve
Idle air control valve-FICD solenoid valve IACV-FICD solenoid valve FICD solenoid valve
Idle air control valve-idle up control sole-
noid valveIACV-idle up control solenoid valve Idle up control solenoid valve
Idle speed control-FI pot ISC-FI pot FI pot
Idle speed control system ISC system ***
Ignition control IC ***
Ignition control module ICM ***
Indirect fuel injection system IFI system ***
Intake air IA Air
Intake air temperature sensor IAT sensor Air temperature sensor
Knock *** Detonation
Knock sensor KS Detonation sensor
Malfunction indicator lamp MIL Check engine light
Manifold absolute pressure MAP ***
Manifold absolute pressure sensor MAPS ***
Manifold differential pressure MDP ***
Manifold differential pressure sensor MDPS ***
Manifold surface temperature MST ***
Manifold surface temperature sensor MSTS ***
Manifold vacuum zone MVZ ***
Manifold vacuum zone sensor MVZS ***
Mass air flow sensor MAFS Air flow meter
Mixture control solenoid valve MC solenoid valve Air-fuel ratio control solenoid valve
Multiport fuel injection System MFI system Fuel injection controlNEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

GI-52
< SERVICE INFORMATION >
TERMINOLOGY
Nonvolatile random access memory NVRAM ***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Park/neutral position switch PNP switchPark/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain control module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valvePAIRC solenoid valve AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM ***
Read only memory ROM ***
Scan tool ST ***
Secondary air injection pump AIR pump ***
Secondary air injection system AIR system ***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI ***
Simultaneous multiport fuel injection sys-
tem*** Simultaneous fuel injection
Smoke puff limiter system SPL system ***
Supercharger SC ***
Supercharger bypass SCB ***
System readiness test SRT ***
Thermal vacuum valve TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OC Catalyst
Three way + oxidation catalytic converter
systemTWC + OC system ***
Throttle body TBThrottle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valveLock-up cancel solenoid
Lock-up solenoid NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

TERMINOLOGY
GI-53
< SERVICE INFORMATION >
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***: Not applicableTransmission control module TCM A/T control unit
Turbocharger TC Turbocharger
Vehicle speed sensor VSS Vehicle speed sensor
Volume air flow sensor VAFS Air flow meter
Warm up oxidation catalyst WU-OC Catalyst
Warm up oxidation catalytic converter sys-
temWU-OC system ***
Warm up three way catalyst WU-TWC Catalyst
Warm up three way catalytic converter sys-
temWU-TWC system ***
Wide open throttle position switch WOTP switch Full switchNEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

GW-1
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SECTION GW
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CONTENTS
GLASSES, WINDOW SYSTEM & MIRRORS
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Handling for Adhesive and Primer ............................3
PREPARATION ...................................................4
Special Service Tool .................................................4
Commercial Service Tool ..........................................4
SQUEAK AND RATTLE TROUBLE DIAGNO-
SIS .......................................................................
5
Work Flow .................................................................5
Generic Squeak and Rattle Troubleshooting ............7
Diagnostic Worksheet ...............................................9
WINDSHIELD GLASS ........................................11
Removal and Installation .........................................11
REAR WINDOW GLASS AND MOLDING .........13
Removal and Installation .........................................13
POWER WINDOW SYSTEM ..............................15
Component Parts and Harness Connector Loca-
tion ..........................................................................
15
System Description .................................................15
CAN Communication System Description ...............18
Schematic ...............................................................19
Wiring Diagram - WINDOW- ...................................21
Main Power Window and Door Lock/Unlock
Switch Harness Connector Terminal Layout ...........
28
Terminal and Reference Value for Main Power
Window and Door Lock/Unlock Switch ...................
29
Power Window and Door Lock/Unlock Switch RH
Harness Connector Terminal Layout ......................
30
Terminal and Reference Value for Power Window
and Door Lock/Unlock Switch RH ...........................
30
Terminal and Reference Value for BCM .................31
Work Flow ...............................................................31
CONSULT-II Function (BCM) ..................................31
Trouble Diagnosis Symptom Chart ..........................32
BCM Power Supply and Ground Circuit Inspection
....
34
Main Power Window and Door Lock/Unlock
Switch Power Supply and Ground Circuit Inspec-
tion ...........................................................................
34
Power Window and Door Lock/Unlock Switch RH
Power Supply and Ground Circuit Inspection ..........
35
Front Power Window Motor LH Circuit Inspection ....36
Front Power Window Motor RH Circuit Inspection ....37
Limit Switch Circuit Inspection Front LH ..................37
Limit Switch Circuit Inspection Front RH .................38
Encoder Circuit Inspection Front LH ........................40
Encoder Circuit Inspection Front RH .......................41
Door Switch Check ..................................................43
Front Door Lock Assembly LH (Key Cylinder
Switch) Check ..........................................................
44
Power Window Serial Link Check Front LH and
RH ...........................................................................
46
Rear Power Window Control Unit LH or RH Power
Supply and Ground Circuit Inspection .....................
48
Rear Power Window Switch LH or RH Power Sup-
ply and Ground Circuit Inspection ...........................
49
Rear Power Window Motor LH Circuit Inspection ....50
Rear Power Window Motor RH Circuit Inspection ....50
Limit Switch Circuit Inspection Rear LH and RH .....51
Encoder Circuit Inspection Rear LH or RH ..............53
Power Window Serial Link Check Rear LH or RH ....54
Rear Power Vent Window Switch Circuit Inspec-
tion ...........................................................................
55
Rear Power Vent Window Motor LH Circuit In-
spection ...................................................................
55
Rear Power Vent Window Motor RH Circuit In-
spection ...................................................................
56
Rear Power Vent Window Relay (OPEN) Check ....56
Rear Power Vent Window Relay (CLOSE) Check ....57
FRONT DOOR GLASS AND REGULATOR .....59
Removal and Installation .........................................59
REAR DOOR GLASS AND REGULATOR .......62

PRECAUTIONS
GW-3
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003533015
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
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 section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Handling for Adhesive and PrimerINFOID:0000000003533016
• Do not use an adhesive which is past its usable date. 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.
• Open the seal of the primer and adhesive just before application. Discard the remainder.
• Before application, be sure to shake the primer container to stir the contents. If any floating material is found,
do not use it.
• If any primer or adhesive contacts the skin, wipe it off with gasoline or equivalent and wash the skin with
soap.
• When using primer and adhesive, always observe the precautions in the instruction manual.

GW-4
< SERVICE INFORMATION >
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000003533017
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000003533018
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-39570)
Chassis earLocating the noise
—
(J-43980)
NISSAN Squeak and Rat-
tle KitRepairing the cause of noise
SIIA0993E
SIIA0994E
(Kent-Moore No.)
Tool nameDescription
(J-39565)
Engine earLocating the noise
(—)
Suction LifterHolding door glass
SIIA0995E
LIIA1991E