fuel INFINITI QX56 2011 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2011, Model line: QX56, Model: INFINITI QX56 2011Pages: 5598, PDF Size: 94.53 MB
Page 1 of 5598

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QUICK REFERENCE INDEX
AGENERAL INFORMATIONGIGeneral Information
BENGINEEMEngine Mechanical
LUEngine Lubrication System
COEngine Cooling System
ECEngine Control System
FLFuel System
EXExhaust System
STRStarting System
ACCAccelerator Control System
CHYBRIDHBCHybrid Control System
HBBHybrid Battery System
HBRHybrid Brake System
DTRANSMISSION & DRIVE-
LINECLClutch
TMTransaxle & Transmission
DLNDriveline
FAXFront Axle
RAXRear Axle
ESUSPENSIONFSUFront Suspension
RSURear Suspension
SCSSuspension Control System
WTRoad Wheels & Tires
FBRAKESBRBrake System
PBParking Brake System
BRCBrake Control System
GSTEERINGSTSteering System
STCSteering Control System
HRESTRAINTSSBSeat Belt
SBCSeat Belt Control System
SRSRS Airbag
SRCSRS Airbag Control System
IVENTILATION, HEATER &
AIR CONDITIONERVTLVentilation System
HAHeater & Air Conditioning System
HACHeater & Air Conditioning Control System
JBODY INTERIORINTInterior
IPInstrument Panel
SESeat
ADPAutomatic Drive Positioner
KBODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITYDLKDoor & Lock
SECSecurity Control System
GWGlass & Window System
PWCPower Window Control System
RFRoof
HDHood
EXTExterior
BRMBody Repair
LDRIVER CONTROLSMIRMirrors
EXLExterior Lighting System
INLInterior Lighting System
WWWiper & Washer
DEFDefogger
HRNHorn
MELECTRICAL & POWER
CONTROLPWOPower Outlet
BCSBody Control System
LANLAN System
PCSPower Control System
CHGCharging System
PGPower Supply, Ground & Circuit Elements
NDRIVER INFORMATION &
MULTIMEDIAMWIMeter, Warning Lamp & Indicator
WCSWarning Chime System
SNSonar System
AVAudio, Visual & Navigation System
OCRUISE CONTROL &
DRIVER ASSISTANCECCSCruise Control System
DASDriver Assistance System
DMSDrive Mode System
PMAINTENANCEMAMaintenance
All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmit-
ted in any form, or by any
means, electronic, mechani-
cal, recording or otherwise,
without the prior written per-
mission of NISSAN MOTOR
CO., LTD.
Edition: May 2010
Publication No. SM1E-1Z62U0
Page 4 of 5598

QUICK REFERENCE CHART QX56
FRONT WHEEL ALIGNMENT
ELS0003X
*1: The minimum value and maximum value is the same as the nominal value.
Measure value under unladen*2 conditions.
*2: Fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and mats are in designated positions.
REAR WHEEL ALIGNMENTELS0003Y
Measure value under unladen* conditions.
*: Fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and mats are in designated positions. Item Standard
Measurement wheel Left side Right side
Camber
Degree minute (Decimal degree) Minimum
−0 °45 ′ ( −0.75 °) −0°55 ′ ( −0.91 °)
Nominal 0 ° 00 ′ (0.00 °) −0°10 ′ ( −0.17 °)
Maximum 0 ° 45 ′ (0.75 °)0 ° 35 ′ (0.58 °)
Left and right difference 0 ° 33 ′ (0.55 °) or less
Caster
Degree minute (Decimal degree) Minimum 2
° 20 ′ (2.34 °)2 ° 40 ′ (2.67 °)
Nominal 3 ° 05 ′ (3.08 °)3 ° 25 ′ (3.42 °)
Maximum 3 ° 50 ′ (3.83 °)4 ° 10 ′
(4.16 °)
Left and right difference 0 ° 45 ′ (0.75 °) or less
Kingpin inclination
Degree minute (Decimal degree) Minimum — —
Nominal
13° 20 ′ (13.33 °)
*113 ° 25 ′ (13.42 °)*1
Maximum — —
Toe-in Total toe-in
Distance
Minimum In 1.4 mm (0.055 in)
Nominal In 2.4 mm (0.094 in)
Maximum In 3.4 mm (0.134 in)
Toe angle (left wheel or right wheel)
Degree minute (Decimal degree) Minimum In 0
° 03 ′ (0.05 °)
Nominal In 0 ° 05 ′ (0.08 °)
Maximum In 0 ° 07 ′ (0.11 °)
Item Standard
Camber
Degree minute (Decimal degree) Minimum –1
° 00 ′ (–1.00 °)
Nominal –0 ° 30 ′ (–0.50 °)
Maximum 0 ° 00 ′ (0.00 °)
Left and right difference 0 ° 45 ′ (0.75 °) or less
To e - i n Total toe-in
Distance
Minimum 0 mm (0 in)
Nominal In 3.4 mm (0.134 in)
Maximum In 6.8 mm (0.268 in)
Toe angle (left wheel or right wheel)
Degree minute (Decimal degree) Minimum 0
° 00 ′ (0.00 °)
Nominal In 0 ° 07 ′ (0.12 °)
Maximum In 0 ° 14 ′ (0.23 °)
2011
Page 5 of 5598

QUICK REFERENCE CHART QX56
BRAKE PEDAL
Unit : mm (in)
FRONT DISK BRAKE
Unit : mm (in)
REAR DISK BRAKE
Unit : mm (in)
REFILL CAPACITIESELS00040
Item Standard
Brake pedal height 168.5 (6.63) – 178.5 (7.03)
Depressed brake pedal height
[Depressing 490 N (50 kg, 110 lb) while turning the engine ON] 100 (3.94) or more
Item Limit
Brake pad Wear thickness 1.5 (0.059)
Disc rotor Wear thickness 28.5 (1.122)
Thickness variation (measured at 8 positions) 0.015 (0.0006)
Runout (with it attached to the vehicle) 0.053 (0.0021)
Item Limit
Brake pad Wear thickness 2.0 (0.079)
Disc rotor Wear thickness 18.0 (0.709)
Thickness variation (measured at 8 positions) 0.015 (0.0006)
Runout (with it attached to the vehicle) 0.05 (0.0020)
UNIT
Liter US measure
Fuel tank 98.4 26 gal
Engine Coolant ( With reservoir tank ) at MAX level 14.9 15-6/8 qt
Engine oil Drain and refill
With oil filter change 6.5 6-7/8 qt
Without oil filter change 6.2 6-4/8 qt
Dry engine (Overhaul) 7.6 8 qt
Transmission 10.0 10-5/8 qt
Transfer 1.5 3-1/8 pt
Final drive Front 0.75 1-5/8 pt
Rear 1.75 3-3/4 pt
Power steering system 1.0 7/8 qt
Air conditioning system Compressor oil 0.21 7.1 fl oz
Refrigerant 1.05 kg 2.32 lb
2011
Page 162 of 5598

AV-14
< SYSTEM DESCRIPTION >
SYSTEM
MULTI AV SYSTEM : System Description
INFOID:0000000006216216
Multi AV system means that the following systems are integrated.
COMMUNICATION SIGNAL
AV control unit function by transmitting/receiving dat a one by one with each unit (slave unit) that configures
them completely as a master unit by connecting between units that configure MULTI AV system with two AV
communication lines (H, L).
Two AV communication lines (H, L) adopt a twisted pair line that is resistant to noise.
AV control unit is connected by CAN communication, and it receives data signal from ECM and combination
meter It computes and displays fuel economy information value with the obtained information. Transmitting/
receiving of data signal is performed by BCM. Also, it transmits the required signal of vehicle setting and
receives the response signal.
AV control unit is connected with front display unit and serial communication, and it transmits the required
signal of display and display control and receives the response signal from front display unit.
NAVIGATION SYSTEM FUNCTION
Description
The AV control unit controls navigation function whil e GPS tuner has built-in map data, GYRO (angle speed
sensor), on the HDD (Hard Disk Drive).
The AV control unit inputs operation signal with communication signal, through display (touch panel) and multifunction switch and steering switch.
Guide sound is output to front speaker through BOSE am p. from AV control unit when operating navigation
system.
A vehicle position is calculated with the GYRO (angl e speed sensor), vehicle sensor, signal from GPS satel-
lite and map data stored on HDD (Hard Disk Drive), and transmits the map image signal (RGB image, RGB
area, RGB image synchronizing) to the display.
Position Detection Principle
The navigation system periodically calculates the current vehicle
position according to the following three types of signals.
Travel distance of the vehicle as determined by the vehicle speed
sensor
Vehicle turning angle determined by the gyroscope (angular speed
sensor)
The travel direction of the v ehicle determined by the GPS antenna
(GPS information)
The current position of the vehicle is then identified by comparing the
calculated vehicle position with map data, which is stored in the HDD
(Hard Disk Drive) (map-matching), and indicated on the screen with
a current location mark. More accurate data is used by comparing
position detection results from GPS to the map-matching.
FUNCTION NAME
Navigation system function Audio function
DVD play function
Front auxiliary input function USB connection function
Mobile entertainment system Hands-free phone function Touch panel function
Around view monitor function
Camera assistance sonar system Vehicle information function
Auto Light adjustment system
JSNIA0177GB
Revision: 2010 May2011 QX56
Page 174 of 5598

AV-26
< SYSTEM DESCRIPTION >
SYSTEM
Color and blinking cycle of sonar indicator
Sonar Buzzer Operation
Each sonar sensor transmits a sensor signal to the sonar control unit when detecting an obstacle.
The sonar control unit converts a signal received from each sonar sensor into distance and transmits detec-
tion distance signal to the AV control unit via AV communication.
The AV control unit transmits a buzzer signal to t he BOSE amp. corresponding to each sonar sensor based
on the received signal.
When receiving a buzzer signal, the BOSE amp. trans mits the buzzer signal to the each speaker. When
each speaker receives a buzzer signal, a buzzer sounds.
When the front corner sensor detects an obstacle, a buzzer is heard from the speakers on the front side.
When the rear corner sensor detects an obstacle, a buzzer is heard from the speakers on the rear side.
It changes the buzzer cycle in 3 stages according to the detection distance.
Sonar buzzer cycle
VEHICLE INFORMATION FUNCTION
Status of audio, climate control system, fuel economy, maintenance and navigation are displayed.
AV control unit displays the fuel consumption status while receiving data signal through CAN communication from ECM and combination meter.
AV control unit is connected to BCM via CAN communica tion transmitting/receiving for the vehicle settings
function.
AUTO LIGHT ADJUSTMENT SYSTEM
JSNIA3149GB
JSNIA3150GB
Revision: 2010 May2011 QX56
Page 347 of 5598

AV
MULTI AV SYSTEM SYMPTOMSAV-199
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
MULTI AV SYSTEM SYMPTOMS
Symptom TableINFOID:0000000006216375
RELATED TO NAVIGATION
RELATED TO HANDS-FREE PHONE
Simple Check for Bluetooth™ Communication
If cellular phone and AV control unit cannot be connected with Bluetooth™ communication, following proce-
dure allows the technician to judge which device has malfunction.
1. Turn ON cellular phone, not connecting Bluetooth
™ communication.
2. Start CONSULT-III, then start Windows
®.
3. Set CONSULT-III near a cellular phone.
4. When operated Bluetooth
™ registration by cellular phone, check
if CONSULT-III
* would be displayed on the device name.
(If other Bluetooth
™ device is located near cellular phone, a
name of the device would be displayed also.)
NOTE:
*:Displayed device name is “NISSAN- ”.
If no device name is displayed, cellular phone is malfunctioning. Repair the cellular phone first, then perform diagnosis.
If CONSULT-III is displayed on device name, cellular phone is nor- mal. Perform diagnosis as per the following table.
Symptoms Check items Probable malfunction location
Multifunction switch and preset
switch operation does not work. All switches cannot be operated.
“MULTI AV” is displayed on system
selection screen when the CON-
SULT-III is started. Multifunction switch power supply and ground circuit
malfunction.
AV communication circuit between AV control unit and
multifunction switch.
Perform CONSULT-III self-diagnosis. Refer to AV- 3 9 ,
"CONSULT-III Function".
All switches cannot be operated.
“MULTI AV” is not displayed on sys- tem selection screen when the CON-
SULT-III is initialized. AV control unit power supply and ground circuit malfunc-
tion. Refer to
AV- 1 6 1 , "
AV CONTROL UNIT : Diagnosis
Procedure".
Only specified switch cannot be operat-
ed. Multifunction switch or preset switch malfunction.
Perform multifunction switch and preset switch self-di-
agnosis function. Refer to
AV- 2 8 , "
On Board Diagnosis
Function".
Fuel economy display is abnor-
mal. There is malfunction in the CONSULT-
III “self-diagnosis result” of “MULTI AV”.
Refer to
AV- 3 9 , "
CONSULT-III Func-
tion". Perform detected DTC diagnosis.
Refer to
AV- 5 7 , "
DTC Index".
There is no malfunction in the CON-
SULT-III “self-diagnosis results” of
“MULTI AV”.
Refer to AV- 3 9 , "
CONSULT-III Func-
tion". Ignition signal circuit malfunction.
Guide sound is not heard or too
low. On the setting display select “system
sound (guide sound volume, etc.),” and
confirm that guide sound is ON. AV control unit malfunction.
Replace AV control unit. Refer to
AV- 2 1 2 , "
Removal and
Installation".
JPNIA0441GB
Revision: 2010 May2011 QX56
Page 435 of 5598

BCS
BCM
BCS-47
< ECU DIAGNOSIS INFORMATION >
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55
(G) Ground Rear door UNLOCK Output Rear door UNLOCK (Actuator is acti-
vated)
12 V
Other then UNLOCK (Ac-
tuator is not activated) 0 V
56
(W/R) Ground Interior room lamp
power supply OutputInterior room lamp battery saver is activated.
(Cuts the interior room
lamp power supply) 0 V
Interior room lamp battery saver is not acti-
vated.
(Outputs the interior room lamp power sup-
ply) 12 V
57
(LG) Ground Battery power sup-
ply
Input Ignition switch OFF Battery voltage
59
(G) Ground Passenger door UN-
LOCK
Output Passenger door UNLOCK (Actuator is acti-
vated)
12 V
Other then UNLOCK (Ac-
tuator is not activated) 0 V
60
(G) Ground Turn signal LH Output Ignition switch
ONTurn signal switch OFF 0 V
Turn signal switch LH
6.0 - 7.0 V
61
(G/Y) Ground Turn signal RH Output Ignition switch
ONTurn signal switch OFF 0 V
Turn signal switch RH
6.0 - 7.0 V
62
(R) Ground Step lamp Output Step lamp ON 0 V
OFF 12 V
63
(BR) Ground Interior room lamp
timer control
OutputInterior room
lamp OFF 12 V
ON 0 V
64
(GR/R) Ground Cranking request input
Ignition switch
ONEngine stopped (Selector
lever is in P position)
0 V
Engine stopped (Selector
lever is not in P position) 12 V
Engine running 12 V
65
(R) Ground All doors, fuel lid
LOCK
Output All doors, fuel lid LOCK (Actuator is activat-
ed)
12 V
Other then LOCK (Actua-
tor is not activated) 0 V
Terminal No.
(Wire color) Description
Condition
Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIC6370E
PKIC6370E
Revision: 2010 May2011 QX56
Page 436 of 5598

BCS-48
< ECU DIAGNOSIS INFORMATION >
BCM
66
(V) Ground Driver door, fuel lid
UNLOCK OutputDriver door, fuel
lid UNLOCK (Actuator is acti-
vated)
12 V
Other then UNLOCK (Ac-
tuator is not activated) 0 V
67
(B) Ground Ground Output Ignition switch ON 0 V
68
(Y) Ground P/W power supply
(IGN)
Output Ignition switch ON 12 V
69
(W) Ground
P/W power supply
(BAT) Output Ignition switch OFF 12 V
70
(Y) Ground Battery power sup-
ply Input Ignition switch OFF Battery voltage
72
(P) Ground Puddle lamp control Output Puddle lamp OFF 12 V
ON 0 V
73
(W) Ground ON indicator lamp Output Ignition switch OFF (LOCK indicator is
not illuminated)
Battery voltage
ON 0 V
74
(Y/B) Ground Trailer turn signal
RH control
OutputIgnition switch
ON Turn signal switch OFF Battery voltage
Turn signal switch RH
6.0 - 7.0 V
75
(LG/R) Ground
Driver door request
switch Input
Driver door re-
quest switch ON (Pressed) 0 V
OFF (Not pressed) 12 V
76
(P/L) Ground
Passenger door re-
quest switch Input
Passenger door
request switch ON (Pressed) 0 V
OFF (Not pressed) 12 V
77
(O/L) Ground Trailer turn signal LH
control
OutputIgnition switch
ON Turn signal switch OFF Battery voltage
Turn signal switch LH
6.0 - 7.0 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIC6370E
PKIC6370E
Revision: 2010 May2011 QX56
Page 679 of 5598

BRM-4
< PRECAUTION >
REPAIRING HIGH STRENGTH STEEL
PRECAUTION
REPAIRING HIGH STRENGTH STEEL
High Strength Steel (HSS)INFOID:0000000006248484
High strength steel is used for body panels in order to reduce vehicle weight.
Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:
Read the following precautions when repairing HSS:
1. Additional points to consider
Tensile strength Major applicable parts 440 - 780 MPa Rear floor reinforcement
2nd seat mounting member assembly
Front seat mounting rear crossmember assembly
Front floor reinforcement
2nd crossmember (Lower)
Side radiator core support
Radiator core support main assembly
Front side member assembly
4th crossmember
2nd seat mounting crossmember
Rear side member
Rear crossmember
Inner side roof rail
Upper inner front pillar
Inner center pillar
Upper front pillar reinforcement
Lower center pillar brace
Front pillar brace
Outer sill reinforcement
Front roof rail
Rear roof rail
Radiator guard crossmember assembly
2nd crossmember assembly
2nd crossmember reinforcement
Front side member assembly
Front bound bumper bracket assembly
Lower front link mounting bracket assembly
Center side member assembly
Fuel tank protector assembly
Rear suspension mounting bracket assembly
Rear shock absorber bracket assembly
Rear side member assembly
Rear end gusset
Rear end crossmember assembly
980 - 1350 MPa Lower dash center reinforcement
(Lower dash Component part)
Inner sill
Rear seat crossmember
(2nd seat mounting crossmember component part)
Inner center pillar (Upper)
Upper outer center pillar reinforcement
(Lower center pillar brace component part)
Front bumper crossmember assembly
Revision: 2010 May2011 QX56
Page 687 of 5598

BRM-12
< PREPARATION >
BODY COMPONENT PARTS
NOTE:
For the parts without a number described in the figure, it is supplied only with the assembly part that the part is included with.
Tensile strength column shows the largest strength value of a part in the component part. No. Parts name
Tensile strength
(MPa) Both sided anti-corrosive
precoated steel sections
1. Hood Under 440×
2. Front fender (RH & LH) Under 440 ×
3. Inner side roof rail (RH & LH) 590 —
4. Upper inner front pillar (RH & LH) c. T=1.6 mm
(0.063 in)
980
caution—
5. Inner center pillar (RH & LH) d. T=1.6 mm
(0.063 in)
980
caution×
6. Center sill reinforcement assembly (RH & LH) Under 440 ×
7. Side body assembly (RH & LH) Refer to No.8 −13
8. Upper front pillar reinforcement (RH & LH) 590 —
9. Lower center pillar brace (RH & LH) e. T=1.8 mm
(0.071 in)
980
caution—
10. Front pillar brace (RH & LH) 590 —
11. Outer sill reinforcement (RH & LH) 590 ×
12. Outer front side body (RH & LH) Under 440 ×
13. Front fender bracket assembly (RH & LH) Under 440 ×
14. Outer sill (RH & LH) Under 440 ×
15. Front door assembly (RH & LH) 440 ×
16. Outer front door panel (RH & LH) Under 440 ×
17. Rear door assembly (RH & LH) 440 ×
18. Outer rear door panel (RH & LH) Under 440 ×
19. Back pillar reinforcement (RH & LH) Under 440 —
20. Inner back pillar (RH & LH) Under 440 —
21. Inner rear side roof rail (RH & LH) Under 440 —
22. Inner rear pillar (RH & LH) 590 —
23. Lower inner rear pillar (RH & LH)v Under 440 —
24. Side panel reinforcement (RH & LH) Under 440 —
25. Outer rear wheelhouse (RH & LH) Under 440 ×
26. Inner rear wheelhouse (RH & LH) Under 440 ×
27. Outer rear wheelhouse extension (RH & LH) Under 440 ×
28. Roof assembly Under 440 —
29. Front roof rail 440 —
30. Roof bow No.3 Under 440 —
31. Roof bow No.4 Under 440 —
32. Roof bow No.5 Under 440 —
33. Rear roof rail 440 —
34. Rear fender (RH & LH) Under 440 ×
35. Back pillar assembly (RH & LH) Under 440 —
36. Rear fender bracket (RH & LH) Under 440 —
37. Fuel filler lid Under 440 ×
38. Rear fender extension (RH & LH) Under 440 ×
39. Back door Under 440 ×
Revision: 2010 May2011 QX56