2011 INFINITI QX56 ECO mode

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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

ADP-56
< DTC/CIRCUIT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000006248336
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN H-line, CAN L-line) al lowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC LogicINFOID:0000000006248337
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.STEP 1
Turn ignition switch ON and wait at least 3 seconds.
>> GO TO 2.
2.STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to ADP-56, "DiagnosisProcedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006248338
Refer to LAN-18, "Trouble Diagnosis Flow Chart".
Special Repair RequirementINFOID:0000000006248339
Refer to ADP-52, "SYSTEM INITIALIZATION : Description".
DTC No. CONSULT-III display
description DTC detecting condition Possible cause
U1000 CAN COMM CIR-
CUIT  Driver seat control unit cannot communicate to other
control units.
 When driver seat control unit cannot communicate CAN communication signal continuously for 2 seconds or
more. CAN communication system
Revision: 2010 May2011 QX56

AV
AV-3
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U125A HEADREST DISPLAY UNIT .............. ..147
DTC Logic ........................................................... ..147
Diagnosis Procedure .............................................147
U1263 USB .......................................................148
DTC Logic ........................................................... ..148
Diagnosis Procedure .............................................148
U1264 ANTENNA AMP. ...................................149
DTC Logic ........................................................... ..149
Diagnosis Procedure .............................................149
U1265 BOSE AMP. ..........................................150
DTC Logic ........................................................... ..150
Diagnosis Procedure .............................................150
U1300 AV COMM CIRCUIT .............................151
Description .......................................................... ..151
U1310 AV CONTROL UNIT .............................152
DTC Logic ........................................................... ..152
B2700 CORNER SENSOR [FL] .......................153
DTC Logic ........................................................... ..153
B2701 SENSOR HARNESS OPEN [CR-FL] ...154
DTC Logic ........................................................... ..154
Diagnosis Procedure .............................................154
B2702 CORNER SENSOR [FR] ......................155
DTC Logic ........................................................... ..155
B2703 SENSOR HARNESS OPEN [CR-FR] ...156
DTC Logic ........................................................... ..156
Diagnosis Procedure .............................................156
B2704 CORNER SENSOR [RL] ......................157
DTC Logic ........................................................... ..157
B2705 SENSOR HARNESS OPEN [CR-RL] ...158
DTC Logic ........................................................... ..158
Diagnosis Procedure .............................................158
B2706 CORNER SENSOR [RR] ......................159
DTC Logic ........................................................... ..159
B2707 SENSOR HARNESS OPEN [CR-RR] ..160
DTC Logic .............................................................160
Diagnosis Procedure .............................................160
POWER SUPPLY AND GROUND CIRCUIT ....161
AV CONTROL UNIT .............................................. ..161
AV CONTROL UNIT : Diagnosis Procedure .........161
FRONT DISPLAY UNIT ......................................... ..161
FRONT DISPLAY UNIT : Diagnosis Procedure ....161
HEADREST DISPLAY UNIT ................................. ..162
HEADREST DISPLAY UNIT : Diagnosis Proce-
dure ..................................................................... ..
162
VIDEO DISTRIBUTOR .......................................... ..163
VIDEO DISTRIBUTOR : Diagnosis Procedure ......163
BOSE AMP. ........................................................... ..163
BOSE AMP. : Diagnosis Procedure ......................163
AROUND VIEW MONITOR CONTROL UNIT .........164
AROUND VIEW MONITOR CONTROL UNIT : Di-
agnosis Procedure ............................................... ..
164
SONAR CONTROL UNIT (WITH AROUND VIEW
MONITOR) ............................................................. ..
165
SONAR CONTROL UNIT (WITH AROUND VIEW
MONITOR) : Diagnosis Procedure ........................
165
RGB DIGITAL IMAGE SIGNAL CIRCUIT ......166
Description .............................................................166
Diagnosis Procedure .............................................166
COMPOSITE IMAGE SIGNAL CIRCUIT (AV
CONTROL UNIT TO FRONT DISPLAY UNIT) .
167
Description ........................................................... ..167
Diagnosis Procedure .............................................167
COMPOSITE IMAGE SIGNAL CIRCUIT (AV
CONTROL UNIT TO VIDEO DISTRIBUTOR) .
168
Description .............................................................168
Diagnosis Procedure .............................................168
COMPOSITE IMAGE SIGNAL CIRCUIT (VID-
EO DISTRIBUTOR TO HEADREST DISPLAY
UNIT) ...............................................................
169
Description .............................................................169
Diagnosis Procedure .............................................169
AUX IMAGE SIGNAL CIRCUIT (FRONT AUX-
ILIARY INPUT JACKS TO AV CONTROL
UNIT) ...............................................................
171
Description .............................................................171
Diagnosis Procedure .............................................171
AUX IMAGE SIGNAL CIRCUIT (REAR AUX-
ILIARY INPUT JACKS TO VIDEO DISTRIBU-
TOR) ................................................................
172
Description .............................................................172
Diagnosis Procedure .............................................172
IMAGE SWITCH SIGNAL CIRCUIT ................173
Description .............................................................173
Diagnosis Procedure .............................................173
LOCATION RECOGNITION SIGNAL CIR-
CUIT ................................................................
175
Description .............................................................175
Diagnosis Procedure .............................................175
DISK EJECT SIGNAL CIRCUIT .....................176
Description .............................................................176
Diagnosis Procedure .............................................176
MODE CHANGE SIGNAL CIRCUIT ...............177
Description .............................................................177
Revision: 2010 May2011 QX56

AV-10
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Component Description
INFOID:0000000006216214
1. Squawker RH 2. Center speaker 3. Corner sensor front RH
4. Squawker LH 5. Front camera 6. Corner sensor front LH
7. Side camera LH 8. Front door speaker LH 9. Headrest display unit LH
10. Rear door tweeter LH 11. Rear door speaker LH 12. Roof speaker LH
13. Woofer 14. Corner sensor rear LH 15. Satellite radio antenna
16. Rear camera 17. Corner sensor rear RH 18. BOSE amp.
19. Roof speaker RH 20. Antenna amp. 21. Rear door speaker RH
22. Rear door tweeter RH 23. Headrest display unit RH 24. Front door speaker RH
25. Side camera RH and infrared LED
(auxiliary lighting) 26. Front display unit 27. Steering switch
28. Sonar control unit 29. Steering angle sensor 30. Preset switch
31. Around view monitor control unit 32. USB connector 33. Front auxiliary input jacks
34. Rear auxiliary input jacks 35. AV control unit 36. Video distributor
37. Multifunction switch 38. GPS antenna 39. Microphone A. Luggage side lower finisher LH re-
moved condition B.Luggage side lower finisher RH re-
moved condition C.Headlining assembly removed condi-
tion
D. Instrument lower
panel LH removed
condition E. Spiral cable part F. Cluste
r lid C removed condition
G. Within center console H. Instrument panel rear side
Part name Description
AV control unit  Integrates hard disk drive (HDD) allowing map data and music data to be stored.
 It is the master unit of the MULTI AV system, and it is connected to each control
unit by communication. It operates each system according to communication sig-
nals from the AV control unit.
 The AV control unit includes the audio, hands-free phone, navigation, USB con- nection, DVD play and vehicle information functions.
 It is connected to ECM and combination meter via CAN communication to obtain
necessary information for the vehicle information function.
 It inputs the illumination signals that are required for the front display dimming con- trol.
 It inputs the signals for driving status recognition (vehicle speed, reverse and park- ing brake).
 The RGB digital image signal and composite image signal are output to front dis-
play unit.
 Switches image and sound output to video distributor, inputting image switch sig- nal from headrest display unit via AV communication.
 Amp. ON signal and mode change signal transmitted to BOSE amp.
 Update of map data is performed with the DVD-ROM.
Front display unit  Front display image is controlled by the serial communication from AV control unit.
 RGB digital image signal is input from AV control unit.
 Composite image signal is input from AV control unit.
 Camera image signal is input from around view monitor control unit.
 Touch panel function can be operated for each system by touching a display di-
rectly.
Headrest display unit  Composite image signal [USB (video data), DVD and auxiliary input images] is in-
put from the video distributor.
 It receives the DVD/AUX/USB sound signal from the video distributor, and then transmits it to the headphones.
 Outputs image switch signal to video distributor via hard wire, according to rear seat remote controller operation.
 Outputs image switch signal to AV control unit via AV communication, according to
rear seat remote controller operation.
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AV
SYSTEMAV-27
< SYSTEM DESCRIPTION >
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When the light switch is in the 1st or 2nd position, the dimming of the display is judged according to a dimming
signal transmitted from BCM to the AV control unit. Dis play illuminance is independent of vehicle exterior illu-
minance detected by the auto light detecting sensor ev en when the light switch is in 1st or 2nd position.
MULTI AV SYSTEM : Fail-SafeINFOID:0000000006216217
When the ambiance temperature becomes extremely low or extremely high, AV control unit displays the mes-
sage and limits the AV control unit function.
FAIL-SAFE CONDITIONS
When the ambiance temperature is −20 °C ( −4 °F) or lower, or when it is 70 °C (158 °F) or higher
Display
The messages displayed on fail-safe conditions are as shown below:
DESCRIPTION OF CONTROLS
Ability Operation Mode
There is an ability operation mode for Fail-safes due to low or high ambiance temperature.
If HDD data can be read, fail-safe is shown, then normal displays are displayed only for functions which can be
operated.
RELEASE CONDITIONS OF FAIL-SAFE
Fail-safe is released on following conditions and normal mode is restored.
When The Temperature of HDD Is Low or High
If the ambient temperature becomes out of fa il-safe condition range, normal mode is restored.
Fail-safe mode Display (display of the fail-safe condition)
When HDD temperature is low HDD system is experienci
ng problems due to extreme low temperature.
Normal operation will resume when temperature rises.
When HDD temperature is high HDD system is experienci
ng problems due to extreme high temperature.
Normal operation will resume when temperature drops.
Function When Fail-safe Function is activated
Air conditioner Operation Only multifunction switch (preset switch) can be operated.
Display
 LED of multifunction switch (preset switch) illuminates.
 Aimed temperature, blow angle, and flow rate are displayed in simplified mode.
Audio Operation Only ON/OFF and volume control operations by multifunction switch (preset switch) are possible.
Display No display (“Fail-safe mode” is displayed)
Camera Operation Image tone cannot be controlled.
Display Cannot be superimposed. (warning display, tone control display)
Hands-free phone Operation Cannot be operated.
Navigation Operation Cannot be operated.
Self diagnosis The display in simplified mode of fail-safe condition
CONSULT-III diagnosis Cannot be operated.
Revision: 2010 May2011 QX56

AV-28
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
DescriptionINFOID:0000000006216218
 The AV control unit diagnosis function starts up with multifunction switch operation and the AV control unit
performs a diagnosis for each unit in the system during the on board diagnosis.
 Perform a CONSULT-III diagnosis if the on board diagnosis does not start, e.g., the screen does not display
anything, the multifunction switch does not function, etc.
On Board Diagn osis FunctionINFOID:0000000006216219
MULTIFUNCTION SWITCH AND PRESET SWITCH SELF-DIAGNOSIS FUNCTION
The ON/OFF operation (continuity) of each switch in the multifunction switch and preset switch can be
checked.
Self-diagnosis Mode
 Press the “BACK” switch and the “UP” switch of the 8-direction switches within 10 seconds after turning the ignition switch from
OFF to ACC and hold them for 3 seconds or more. Then the
buzzer sounds, all indicators of the preset switch illuminate, and
the self-diagnosis mode starts.
 The continuity of each switch at the ON position can be checked
by pressing the switch. The buzzer sounds if the switch is normal.
NOTE:
The hazard switch and disk eject switch cannot be checked.
Finishing Self-diagnosis Mode
Self-diagnosis mode is canceled when turning the ignition switch OFF.
ON BOARD DIAGNOSIS
Description
 The trouble diagnosis function has a self-diagnosis mode for conducting trouble diagnosis automatically and
a confirmation/adjustment mode for operating manually.
 The self-diagnosis mode performs diagnoses on the AV control unit, connections between system compo-
nents as well as connections between AV contro l unit and GPS antenna. Then it displays the diagnosis
results on the display.
 The confirmation/adjustment mode allows the technician to check, modify or adjust the vehicle signals and
set values, as well as to monitor the system erro r records and system communication status. The checking,
modifying or adjusting generally require human inte rvention and judgment (the system cannot make judg-
ment automatically).
On Board Diagnosis Item
JSNIA2987ZZ
Mode Description
Self Diagnosis  AV control unit diagnosis.
 Diagnoses the connections across system components, between AV
control unit and GPS antenna.
Revision: 2010 May2011 QX56

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-31
< SYSTEM DESCRIPTION >
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SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunctioning parts.
Only Unit Part Is Displayed In Red.
A Connecting Cable Between Units Is Displayed In Yellow.
CONFIRMATION/ADJUSTMENT MODE
Screen switch Description Possible malfunction location / Action to
take
Control Unit Malfunction is detected in AV control unit
power supply and ground circuits.Check AV control unit power supply and
ground circuits. When detecting no mal-
function in those components, replace AV
control unit.
Area with yellow connection lines Description
Possible malfunction location / Action to
take
Control unit ⇔ Front Display Serial communication circuits between AV
control unit and front display unit are mal-
functioning. Serial communication circuits between AV
control unit and front display unit.
Control unit ⇔ GPS Antenna GPS antenna connection malfunctions de-
tected. Check the connection of the GPS antenna
connector.
Control unit ⇔ XM Antenna Satellite radio antenna connection malfunc-
tion is detected.
Satellite radio antenna disconnection
Control unit ⇔ Around view
Around view ⇔ Parking Sensor When either one of the following items are
detected:
 around view monitor control unit power
supply and ground circuits are malfunc-
tioning.
 AV communication circuits between AV
control unit and around view monitor
control unit are malfunctioning.  Around view monitor control unit power
supply and ground circuits.
 AV communication circuits between AV
control unit and around view monitor
control unit.
Control unit ⇔ Parking Sensor
Around view ⇔ Parking Sensor When either one of the following items are
detected:
 sonar control unit power supply and
ground circuits are malfunctioning.
 AV communication circuits between AV
control unit and sonar control unit are
malfunctioning.  Sonar control unit power supply and
ground circuits.
 AV communication circuits between AV control unit and sonar control unit.
Control unit ⇔ Video Dist.(Rear)
Video Dist.(Rear) ⇔ Rear display 2 When either one of the following items are
detected:
 video distributor power supply and
ground circuits are malfunctioning.
 headrest display unit LH power supply and ground circuits are malfunctioning.
 AV communication circuits between AV control unit and headrest display unit LH
are malfunctioning.
 location recognition signal circuit be- tween headrest display unit LH and
ground is malfunctioning.  Video distributor power supply and
ground circuits.
 Headrest display unit LH power supply
and ground circuits.
 AV communication circuits between AV control unit and headrest display unit LH.
 Location recognition signal circuit be- tween headrest display unit LH and
ground.
Video Dist.(Rear) ⇔ Rear display 2 When either one of the following items are
detected:
 headrest display unit RH power supply
and ground circuits are malfunctioning.
 AV communication circuits between headrest display unit LH and headrest
display unit RH are malfunctioning.
 location recognition signal circuit be- tween headrest display unit RH and
ground is malfunctioning.  Headrest display unit RH power supply
and ground circuits.
 AV communication circuits between
headrest display unit LH and headrest
display unit RH.
 Location recognition signal circuit be-
tween headrest display unit RH and
ground.
Revision: 2010 May2011 QX56

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-39
< SYSTEM DESCRIPTION >
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Deletes any unit connection records and error records from the AV
control unit memory. (Clear the records of the unit that has been
removed.)
Initialize Settings
“User Data Initialization” and “Accessory Number Initialization” are
possible.
CAUTION:
 Never perform Accessory Number Initialization except when configuration is unsuccessful.
 Accessory Number Initialization requires configuration. For
details, refer to AV-109, "
Description".
Version Information
Version information of the AV control unit is displayed.
CONSULT-III FunctionINFOID:0000000006216220
APPLICATION ITEMS
CONSULT-III performs the following functions via the communication with the AV control unit.
JSNIA2189ZZ
JSNIA2190ZZ
JSNIA2191ZZ
Diagnosis mode Description
Ecu Identification The part number of AV control unit can be checked.
Self Diagnostic Result Performs a diagnosis on the AV control unit and a connection diagnosis for the communication
circuit of the Multi AV system, and displays the current and past malfunctions collectively.
Revision: 2010 May2011 QX56