2011 INFINITI QX56 sensor

PRECAUTIONSINT-3
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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-26
< REMOVAL AND INSTALLATION >
FLOOR TRIM
10. Remove the following parts after removing the center console assembly. Remove ground bolt (G).
 Disconnect floor harness connectors (A) and (E).
 Disconnect yaw rate/side/decel G sensor harness connector (C). Refer to BRC-138, "
Exploded View".
 Disconnect diagnosis sensor unit harness connector (D). Refer to SR-26, "
Exploded View".
 Remove floor harness clamps (B) and (F).
11. Remove A/T shift selector assembly mounting bolts. Refer to TM-176, "
Removal and Installation".
12. Remove floor duct 1 (LH and RH). Refer to VTL-11, "
FLOOR DUCT 1 : Removal and Installation".
13. Disconnect drain hose (1) and remove instrument stay mounting nuts (A), and then remove instrument stay (2) (LH and RH).
14. Disengage front floor carpet from front floor carpet fixing clips (A).
JMJIA4226ZZ
JMJIA4225ZZ
JMJIA1560ZZ
Revision: 2010 May2011 QX56

HEADLININGINT-29
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Removal and InstallationINFOID:0000000006220257
REMOVAL
1. Remove sun visor cap (1) using a remover tool (A), and then remove sunvisor assembly fixing TORX screws.
2. Disconnect vanity mirror lamp harness connector, and then remove sun visor assembly (LH and RH).
3. Rotate sun visor holder (1) (LH and RH) at approximately 90 degrees, and then pull it out to remove.
4. Insert a remover tool (A) into the gap between lane camera fin- isher (1), and then remove lane camera finisher (if equipped).
5. Remove light & rain sensor cover / rain sensor cover. Refer to WW-72, "
Removal and Installation".
10. Sun visor cover LH 11. Map lamp bracket 12. Dual lock fastener
13. Rear ventilator base LH 14. Rear ventilator grille LH 15. Roof garnish
16. Headlining assembly 17. Dual lock fastener 18. Dual lock fastener
19. Map lamp assembly 20. Sum visor holder RH 21. Rain sensor cover
22. Front camera finisher 23. Sum visor holder LH 24. Rear ventilator garnish A LH
25. Rear ventilator garnish B LH 26. Front camera finisher
(with LDP/LDW)
: Clip
: Pawl
: Metal clip
JMJIA4055ZZ
JMJIA4061ZZ
: Pawl
JMJIA4053ZZ
Revision: 2010 May2011 QX56

INT-30
< REMOVAL AND INSTALLATION >
HEADLINING
6. Disconnect harness connectors. Lane camera unit harness connector (1) (if equipped).
 Inside mirror harness connector (2).
 Light & rain sensor harness connector / rain sensor harness
connector (3).
7. Remove assist grips  Insert a small flat-bladed screwdriver (A) into the gap between
assist grip cap (1), and then remove assist grip cap.
 Remove assist grip mounting bolts, and then remove assist grips (2).
8. Insert a remover tool (A) between luggage room lamp (1) and roof garnish to disengage the fixing metal clips, and then discon-
nect luggage room lamp harness connector.
CAUTION:
Apply protective tape (B) to the roof garnish to protect from
damage.
9. Insert a remover tool (A) between roof garnish (1) and body panel to disengage the fixing clips and pawls, and then remove
roof garnish.
10. Remove front pillar garnish (LH and RH). Refer to INT-19, "
FRONT PILLAR GARNISH : Removal and
Installation".
11. Remove front kicking plate inner (LH and RH) and rear kicking plate inner (LH and RH). Refer to INT-20,
"KICKING PLATE INNER : Removal and Installation".
12. Remove dash side finisher (LH and RH). Refer to INT-18, "
DASH SIDE FINISHER : Removal and Installa-
tion".
13. Remove center pillar lower garnish (LH and RH). Refer to INT-22, "
CENTER PILLAR LOWER GARNISH :
Removal and Installation".
JMJIA4054ZZ
JMJIA4063ZZ
: Metal clip
JMLIA1059ZZ
: Clip
: Pawl
JMJIA4066ZZ
Revision: 2010 May2011 QX56

IP-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006113088
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.
Precaution Necessary for Steering W heel Rotation after Battery Disconnect
INFOID:0000000006113089
NOTE:
 Before removing and installing any control units, first tu rn the push-button ignition switch to the LOCK posi-
tion, then disconnect bot h 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 bat tery 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 wi ll 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

IP-14
< REMOVAL AND INSTALLATION >
INSTRUMENT PANEL ASSEMBLY
Removal and Installation
INFOID:0000000006113098
WORK STEP
When removing instrument panel assembly, combination meter, front display unit, AV control unit, instrument
finisher A, instrument fini sher B, and center console assembly take st eps as per the order shown in the follow-
ing chart.
1. Optical sensor 2. Front defroster grille RH 3. Front defroster grille LH
4. Speaker grille LH 5. Squawker LH 6. Instrument finisher A
7. Combination meter 8. Cluster lid A 9. Push-button ignition switch
10. Illumination lamp 11. Socket and bulb 12. Instrument lower panel LH
13. Steering column upper cover 14. Steering column lower cover 15. Fuse block lid
16. Instrument center finisher LH 17. Instrument center finisher RH 18. Instrument lower cover
19. Illumination lamp 20. Socket and bulb 21. Glove box assembly
22. Socket and bulb 23. Illumination lamp 24. Instrument finisher B
25. Front passenger air bag module 26. Instrument panel assembly 27. Squawker RH
28. Speaker grille RH 29. Sunload sensor 30. Upper ventilator grille
31. Center speaker 32. Front display unit 33. AV control unit
34. Cluster lid D 35. Cluster lid C 36. Cluster lid C lower
37. Inner socket 38. Socket knob
: Clip
: Pawl
: Metal clip
Refer to GI-4, "
Components" for symbols in the figure.
PA R T S INSTRU-
MENT
PA N E L
ASSEMBLY COMBINA-
TION
METER FRONT
DISPLAY
UNIT AV c o n t r o l
unit INSTRU-
MENT
FINISHER A INSTRU-
MENT
FINISHER B CENTER
CONSOLE
ASSEMBLY
Instrument lower cover [1] [1] [1] [1] [1]
Glove box assembly [2] [2]
Front passenger air bag module
harness connector [3] [3]
Front passenger air bag module
mounting bolt [4] [4]
Selector lever knob [5] [2] [2] [5] [2]
Console finisher assembly [6] [3] [3] [6] [3]
Instrument center finisher RH [7] [4] [4] [7] [4]
Front body side welt RH [8] [8]
Front pillar garnish RH [9] [9]
Speaker grille RH [10] [10]
Squawker RH [11] [11]
Front defroster grille RH [12] [12]
Front defroster grille LH [13] [13]
Instrument center finisher LH [14] [5] [5] [14] [5]
Console rear finisher [15] [15] [6]
Center console assembly [16] [16] [7]
Front body side welt LH [17] [1] [1] [17]
Front pillar garnish LH [18] [18]
Speaker grille LH [19] [19]
Revision: 2010 May2011 QX56

LAN
HOW TO USE THIS SECTIONLAN-23
< HOW TO USE THIS MANUAL > [CAN]
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HOW TO USE THIS MANUAL
HOW TO USE THIS SECTION
CautionINFOID:0000000006220525
 This section describes information peculiar to a vehicle and inspection procedures.
 For trouble diagnosis procedure, refer to
LAN-18, "
Trouble Diagnosis Procedure".
Abbreviation ListINFOID:0000000006220526
Unit name abbreviations in CONSULT-III CAN diagnosis and in this section are as per the following list.
Abbreviation Unit name
4WD Transfer control unit
A-BAG Air bag diagnosis sensor unit ABS ABS actuator and electric unit (control unit)
ADP Driver seat control unit AFS AFS control unitAPA Accelerator pedal actuator AV AV control unit
BCM BCM
CGW CAN gateway DLC Data link connector
E-SUS Air levelizer control module ECM ECM
HVAC A/C auto amp. ICC ADAS control unit
IPDM-E IPDM E/R LANE Lane camera unit
LASER ICC sensor M&A Combination meter
PSB Pre-crash seat belt control unit (driver side)
PWBD Automatic back door control module
RDR-L Side radar LH
RDR-R Side radar RH STRG Steering angle sensor TCM TCM
TPMS Low tire pressure warning control unit
Revision: 2010 May2011 QX56

LAN-24
< PRECAUTION >[CAN]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006238426
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.
Precautions for Trouble DiagnosisINFOID:0000000006220528
CAUTION:
 Never apply 7.0 V or more to the measurement terminal.
 Use a tester with open terminal voltage of 7.0 V or less.
 Turn the ignition switch OFF and disconnect th e battery cable from the negative terminal when
checking the harness.
Precautions for Harness RepairINFOID:0000000006220529
 Solder the repaired area and wrap tape around the soldered area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
SKIB8766E
Revision: 2010 May2011 QX56