belt INFINITI QX56 2011 Factory Owners Manual

HAC-138
< SYMPTOM DIAGNOSIS >[AUTOMATIC AIR CONDITIONING]
INSUFFICIENT COOLING
INSUFFICIENT COOLING
FRONT AIR CONDITIONER
FRONT AIR CONDITIONER : DescriptionINFOID:0000000006275984
Symptom Insufficient cooling
 No cool air comes out. (Air flow volume is normal.)
FRONT AIR CONDITIONER
: Diagnosis ProcedureINFOID:0000000006275985
NOTE:
Perform self-diagnoses with CONSULT-III before perform ing symptom diagnosis. If any DTC is detected, per-
form the corresponding diagnosis.
1.CHECK MAGNET CLUTCH OPERATION
1. Turn ignition switch ON.
2. Operate fan switch.
3. Press A/C switch.
4. Check that A/C indicator turns ON. Check visually and by sound that compressor operates.
5. Press A/C switch again.
6. Check that A/C indicator turns OFF. Check that compressor stops.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform diagnosis of “COMPRESSOR DOSE NOT OPERATE” in “SYMPTOM DIAGNOSIS”.
Refer to HAC-142, "
Diagnosis Procedure".
2.CHECK DRIVE BELT
Check tension of drive belt. Refer to EM-20, "
Checking".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Adjust or replace drive belt depending on the inspection results.
3.CHECK REFRIGERANT CYCLE
Connect recovery/recycling recharging equipment to the vehicle and perform pressure inspection with gauge.
Refer to HA-27, "
Symptom Table".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace parts depending on the inspection results.
4.CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of the fr ont air conditioning system for leakage.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace parts depending on the inspection results.
5.CHECK AMBIENT TEMPERATURE DISPLAY
Check that there is not much diference between act ual ambient temperature and indicated temperature on
information display in combination meter.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform diagnosis for the A/C auto amp. connection recognition signal circuit. Refer to MWI-74,
"DiagnosisProcedure".
6.CHECK SETTING OF TEMPERATURE SETTING TRIMMER (FRONT)
1. Check setting value of temperature setting trimmer (front). Refer to HAC-68, "
FRONT AUTOMATIC AIR
CONDITIONING SYSTEM : Temperature Setting Trimmer (Front)".
2. Check that temperature setting trimme r (front) is set to “+ direction”.
Revision: 2010 May2011 QX56

HRN-1
DRIVER CONTROLS
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SECTION HRN
A
B
HRN
N
O P
CONTENTS
HORN
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
WIRING DIAGRAM .......................................3
HORN .................................................................3
Wiring Diagram .................................................... .....3
REMOVAL AND INSTALLATION ................6
HORN .................................................................6
Exploded View ..................................................... .....6
Removal and Installation ..........................................6
Revision: 2010 May2011 QX56

HRN-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006220273
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Revision: 2010 May2011 QX56

INL-1
DRIVER CONTROLS
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G H
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SECTION INL
A
B
INL
N
O P
CONTENTS
INTERIOR LIGHTING SYSTEM
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
SYSTEM DESCRIPTION ..............................4
COMPONENT PARTS ................................... .....4
Component Parts Location .................................. ......4
Component Description ............................................4
SYSTEM ..............................................................6
INTERIOR ROOM LAMP CONTROL SYSTEM .... ......6
INTERIOR ROOM LAMP CONTROL SYSTEM :
System Diagram ........................................................
6
INTERIOR ROOM LAMP CONTROL SYSTEM :
System Description ...................................................
6
INTERIOR ROOM LAMP BATTERY SAVER SYS-
TEM ........................................................................ ......
8
INTERIOR ROOM LAMP BATTERY SAVER
SYSTEM : System Diagram ......................................
9
INTERIOR ROOM LAMP BATTERY SAVER
SYSTEM : System Description .................................
9
ILLUMINATION CONTROL SYSTEM ................... ....10
ILLUMINATION CONTROL SYSTEM : System
Diagram ...................................................................
10
ILLUMINATION CONTROL SYSTEM : System
Description ..............................................................
10
AUTO LIGHT ADJUSTMENT SYSTEM ................ ....10
AUTO LIGHT ADJUSTMENT SYSTEM : System
Diagram ...................................................................
11
AUTO LIGHT ADJUSTMENT SYSTEM : System
Description ..............................................................
11
DIAGNOSIS SYSTEM (BCM) ............................12
COMMON ITEM ..................................................... ....12
COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) .....................................................
12
INT LAMP ............................................................... ....13
INT LAMP : CONSULT-III Function (BCM - INT
LAMP) ......................................................................
14
BATTERY SAVER ................................................. ....15
BATTERY SAVER : CONSULT-III Function (BCM
- BATTERY SAVER) ...............................................
15
ECU DIAGNOSIS INFO RMATION ..............17
BCM ...................................................................17
List of ECU Reference ......................................... ....17
WIRING DIAGRAM ......................................18
INTERIOR ROOM LAMP CONTROL SYSTEM
...
18
Wiring Diagram .................................................... ....18
ILLUMINATION .................................................34
Wiring Diagram ........................................................34
BASIC INSPECTION ...................................54
DIAGNOSIS AND REPAIR WORKFLOW ........54
Work Flow ............................................................ ....54
DTC/CIRCUIT DIAGNOSIS .........................56
INTERIOR ROOM LAMP POWER SUPPLY
CIRCUIT ...................... ......................................
56
Description ........................................................... ....56
Component Function Check ....................................56
Diagnosis Procedure ...............................................56
INTERIOR ROOM LAMP CONTROL CIRCUIT
...
58
Description ........................................................... ....58
Component Function Check ....................................58
Diagnosis Procedure ...............................................58
Revision: 2010 May2011 QX56

PRECAUTIONSINL-3
< PRECAUTION >
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INL
N
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006377028
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Revision: 2010 May2011 QX56

INT-1
BODY INTERIOR
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K L
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SECTION INT
A
B
INT
N
O P
CONTENTS
INTERIOR
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
Special Service Tools .......................................... ......5
Commercial Service Tools ........................................5
CLIP LIST ............................................................6
Clip List ............................................................... ......6
SYMPTOM DIAGNOSIS ...............................7
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ........................ ........................................
7
Work Flow ........................................................... ......7
Inspection Procedure ................................................9
Diagnostic Worksheet .............................................11
REMOVAL AND INSTALLATION ...............13
FRONT DOOR FINISHER .............................. ....13
Exploded View .................................................... ....13
Removal and Installation .........................................14
REAR DOOR FINISHER ....................................16
Exploded View .................................................... ....16
Removal and Installation .........................................16
BODY SIDE TRIM ..............................................18
Exploded View .................................................... ....18
DASH SIDE FINISHER .......................................... ....18
DASH SIDE FINISHER : Removal and Installation
....
18
FRONT PILLAR GARNISH .................................... ....19
FRONT PILLAR GARNISH : Removal and Instal-
lation ........................................................................
19
BODY SIDE WELT ................................................. ....20
BODY SIDE WELT : Removal and Installation ........20
KICKING PLATE INNER ....................................... ....20
KICKING PLATE INNER : Removal and Installa-
tion ...........................................................................
20
KICKING PLATE OUTER ...................................... ....21
KICKING PLATE OUTER : Removal and Installa-
tion ...........................................................................
21
CENTER PILLAR LOWER GARNISH ................... ....22
CENTER PILLAR LOWER GARNISH : Removal
and Installation ........................................................
22
CENTER PILLAR UPPER GARNISH ........................22
CENTER PILLAR UPPER GARNISH : Removal
and Installation .................................................... ....
22
FLOOR TRIM ....................................................24
Exploded View .........................................................24
FRONT FLOOR CARPET ...................................... ....25
FRONT FLOOR CARPET : Removal and Installa-
tion ....................................................................... ....
25
REAR FLOOR CARPET ........................................ ....27
REAR FLOOR CARPET : Removal and Installa-
tion ...........................................................................
27
HEADLINING ....................................................28
Exploded View .........................................................28
Removal and Installation .........................................29
LUGGAGE FLOOR TRIM .................................33
Exploded View .........................................................33
Revision: 2010 May2011 QX56

PRECAUTIONSINT-3
< PRECAUTION >
C
DE
F
G H
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K L
M A
B
INT
N
O P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006415653
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision that would result in air ba g inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wh eel Rotation after Battery Disconnect
INFOID:0000000006415652
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnos is according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the batte ry disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wil l remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
Revision: 2010 May2011 QX56

INT-22
< REMOVAL AND INSTALLATION >
BODY SIDE TRIM
CAUTION:
 Visually check the pawls for deformation and damage during installation. Replace with new ones if
necessary.
 When installing front kicking pl ate outer and rear kicking plate outer, check that pawls are securely
fitted in body panel ho les, and press them in.
CENTER PILLAR LOWER GARNISH
CENTER PILLAR LOWER GARNISH : Removal and InstallationINFOID:0000000006220251
CAUTION:
Never damage the body.
REMOVAL
1. Remove front kicking plate inner and rear kicking plate inner. Refer to INT-20, "KICKING PLATE INNER :
Removal and Installation".
2. Slide front seat assembly to the frontmost position.
3. Remove seat belt outer anchor. Refer to SB-6, "
SEAT BELT RETRACTOR : Removal and Installation".
4. Disengage center pillar lower garnish fixing clips.
5. Remove center pillar lower garnish according to the order of the arrows shown in the figure.
INSTALLATION
Note the following items, and install in the reverse order of removal.
CAUTION:
 Visually check the clips for deformation and dama ge during installation. Replace with new ones if
necessary.
 When installing center pillar lowe r garnish, check that clips are secu rely fitted in body panel holes,
and press them in.
CENTER PILLAR UPPER GARNISH
CENTER PILLAR UPPER GARNISH : Removal and InstallationINFOID:0000000006220252
CAUTION:
 When removing, always use a remover tool that is made of plastic.
 Never damage the body.
REMOVAL
1. Remove front kicking plate inner and rear kicking plate inner. Refer to INT-20, "KICKING PLATE INNER :
Removal and Installation".
2. Slide front seat assembly to the frontmost position.
3. Remove center pillar lower garnish. Refer to INT-22, "
CENTER PILLAR LOWER GARNISH : Removal
and Installation".
: Clip
JMJIA4025ZZ
Revision: 2010 May2011 QX56

INT-36
< REMOVAL AND INSTALLATION >
LUGGAGE FLOOR TRIM
LUGGAGE SIDE LOWER FINISHER
LUGGAGE SIDE LOWER FINISHER : Removal and InstallationINFOID:0000000006220261
REMOVAL
1. Lift up the seat base, tilt seatback fo rward, and fold down second seat forward.
2. Remove second seat belt anchor. Refer to SB-13, "
SEAT BELT RETRACTOR : Removal and Installation".
3. Remove third seat. Refer to SE-138, "
Removal and Installation".
4. Remove third seat belt anchor. Refer to SB-19, "
SEAT BELT RETRACTOR : Removal and Installation".
5. Remove luggage floor board center and both luggage lower boards. Refer to INT-34, "
LUGGAGE FLOOR
REAR BOARD : Removal and Installation".
6. Remove luggage rear plate. Refer to INT-35, "
LUGGAGE REAR PLATE : Removal and Installation".
7. Remove rope hook (1) mounting bolt using a socket wrench (A), and then remove rope hook.
8. Disengage luggage side lower finisher fixing clip (1) using a small flat-bladed screwdriver (A) as shown by the arrow in the
figure, and then remove clip.
9. Remove luggage side lower finisher. 1. Disengage luggage side lower finisher (1) fixing clips andpawls.
2. Disconnect luggage room power socket harness connector (LH side only).
3. Disconnect fold down switch harness connector (RH side only).
4. Disconnect reclining switch harness connector (LH and RH).
5. Remove luggage side lower finisher.
INSTALLATION
Note the following items, and install in the reverse order of removal.
CAUTION:
JMJIA4043ZZ
JMJIA4042ZZ
: Clip
: Pawl
JMJIA4044ZZ
Revision: 2010 May2011 QX56

IP-1
BODY INTERIOR
C
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G H
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K L
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SECTION IP
A
B
IP
N
O P
CONTENTS
INSTRUMENT PANEL
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
Service ......................................................................3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tools ........................................ ......4
Commercial Service Tools .......................................4
CLIP LIST ............................................................6
Clip List ............................................................... ......6
SYMPTOM DIAGNOSIS ...............................7
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ...............................................................
7
Work Flow ............................................................ .....7
Inspection Procedure ................................................9
Diagnostic Worksheet ..............................................11
REMOVAL AND INSTALLATION ...............13
INSTRUMENT PANEL ASSEMBLY .................13
Exploded View ..................................................... ....13
Removal and Installation .........................................14
CENTER CONSOLE ASSEMBLY ....................23
Exploded View .........................................................23
Removal and Installation .........................................25
Disassembly and Assembly .....................................27
REAR CONSOLE ASSEMBLY .........................29
Exploded View .........................................................29
Removal and Installation .........................................29
Disassembly and Assembly .....................................30
Revision: 2010 May2011 QX56