2011 INFINITI QX56 ignition

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

AV-200
< SYMPTOM DIAGNOSIS >
MULTI AV SYSTEM SYMPTOMS
RELATED TO AROUND VIEW MONITOR
Symptoms Check items Probable malfunction location
Does not recognize cellular
phone connection. (no connec-
tion is displayed on the display
at the guide.) Repeat the registration of cellular phone.
AV control unit malfunction.
Replace AV control unit. Refer to AV- 2 1 2 , "
Removal and
Installation".
Hands-free phone cannot be
established.  Hands-free phone operation can be
made, but the communication cannot
be established.
 Hands-free phone operation can be performed, however, voice between
each other cannot be heard during the
conversation.
The other party's voice cannot
be heard by hands-free phone. Check the “microphone speaker” in In-
spection & Adjustment Mode if sound is
heard.
Originating sound is not heard
by the other party with hands-
free phone communication. Sound operation function is normal.
Sound operation function does not work.
Microphone signal circuit malfunction.
Refer to
AV- 1 7 8 , "
Diagnosis Procedure".
The system cannot be operat-
ed.  The voice recognition can be controlled.
 Steering switch's ”VOL UP”, “VOL
DOWN” and “ ” switch works, but
“ ” it does not work. Steering switch malfunction. Replace steering wheel.
Refer to
ST-33, "
Exploded View".
Steering switch's “ ”, ”VOL UP”, “VOL
DOWN” and “ ” switches do not work. Steering switch signal B circuit malfunction.
Refer to
AV- 1 9 5 , "
Diagnosis Procedure".
All steering switches do not work. Steering switch ground circuit malfunction.
Refer to
AV- 1 9 7 , "
Diagnosis Procedure".
Symptoms Check items Probable malfunction location / Action
to take
It does not switch to camera image
even when the “CAMERA” switch is
pressed or the selector lever is in the
reverse position. “Camera Cont.” of “Confirmation/Adjustment” can be
selected.
Ignition signal circuit malfunction
(around view monitor control unit).
“Camera Cont.” of “Confirmation/Adjustment” cannot
be selected.  Around view monitor control unit
power supply and ground circuits
malfunction.
Refer to AV- 1 6 4 , "
AROUND VIEW
MONITOR CONTROL UNIT : Diag-
nosis Procedure".
 AV communication circuits malfunc- tion.
Refer to AV- 3 9 , "
CONSULT-III Func-
tion".
The screen switches when pressing
the “CAMERA” switch or shifting the
selector lever to the reverse posi-
tion, however, all views are not dis-
played. Only superimposing is displayed.
(Only the image displayed by AV control unit is dis-
played)
Camera image signal circuit between
around view monitor control unit and
front display unit malfunction.
Refer to
AV- 1 8 0 , "
Diagnosis Proce-
dure".
Superimposing is not displayed. Communication circuit between AV control unit and front display unit mal-
function.
Refer to AV- 3 9 , "
CONSULT-III Func-
tion".
Camera image is rolling. —
It cannot be switched to rear view
monitor even when the selector le-
ver is in the reverse position.
The front view is displayed normally.
Reverse signal circuit malfunction. (AV
control unit)
Revision: 2010 May2011 QX56

AV-208
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
RELATED TO AUDIO
 The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.
 The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and oper-
ation of each piece of electrical equipment, and then determine the cause.
NOTE:
 CD-R is not guaranteed to play because they can c ontain compressed audio (MP3, WMA, AAC, M4A) or
could be incorrectly mastered by the customer on a computer.
 Check if the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the “red book” Compact
Disc Standard and may not play.
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other
sources, is not a malfunction.
NOTE:
 Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings bl ocking
the signal.
 Multi-path noise: This noise results from a time difference between the broadcast waves directly from the station arriving at the
antenna and the waves reflected by mountains or buildings.
RELATED TO DVD
The system consistently selects
the wrong voicetag 1. Ensure that the phone book entry name requested matches what was originally stored. This
can be confirmed by using the “List Names” command.
2. Replace one of the names being confused with a new name.
Symptom Solution
Symptom Cause and Counter measure
Cannot play Check if the CD was
inserted correctly.
Check if the CD is scratched or dirty.
Check if there is condensation inside the player, and if there is, wait until the condensation is gone
(about 1 hour) before using the player.
If there is a temperature increase error, the player will play correctly after it returns to the normal
temperature.
If there is a mixture of music CD files (CD-DA data) and MP3/WMA/AAC/M4A files on a CD, only
the music CD files (CD-DA data) will be played.
Files with extensions other than “.MP3”, “.WMA”, “AAC”, “.M4A”, “.mp3”, “.wma”, “.aac” or “.m4a”
cannot be played. In addition, the character codes and number of characters for folder names and
file names should be in compliance with the specifications.
Check if the disc or the file is generated in an irregular format, This may occur depending on the
variation or the setting of MP3/WMA/AAC/M4A writing applications or other text editing applica-
tions.
Check if the finalization process, such as session close and disc close, is done for the disc.
Check if the CD is protected by copyright.
Disks recorded in live file system format are not supported. (For Microsoft Windows Vista, check
the settings.)
Poor sound quality Check if the CD is scratched or dirty.
It takes a relatively long time before
the music starts playing. If there are many folder or file levels on the MP3/WMA/AAC/M4A CD, or if it is a multisession disc,
some time may be required before the music starts playing.
Music cuts off or skips The writing software and hardware combination might not match, or the writing speed, writing
depth, writing width might not match the specifications. Try using the slowest writing speed.
Skipping with high bit rate files Skipping may occur with large quantities if data such as for high bit rate data.
Move immediately to the next song
when playing When a non-MP3/WMA/AAC/M4A file has been given an extension of “.MP3”, “.WMA”, “AAC”,
“.M4A” “.mp3”, “.wma”, “.aac” or “.m4a”, or when play is prohibited by copyright protection, the
player will skip to the next song.
The songs do not play back in the
desired order. The playback order is the order in which the files were written by the software, so the files might
not play in the desired order.
Revision: 2010 May2011 QX56

AV-210
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
RELATED TO ROUTE CALCULATION AND VISUAL GUIDANCE
The vehicle icon is not displayed in
the correct position.The vehicle was transported after the ignition
switch was pressed off, for example, by a ferry
or car transporter.
Drive the vehicle for a while on a road where
GPS signals can be received.
The position and direction of the vehicle icon
may be incorrect depending on the driving en-
vironments and the levels of positioning accu-
racy of the navigation system. This is not a malfunction. Drive the vehicle for
a while to automatically correct the position
and direction of the vehicle icon.
When the vehicle is traveling on a
new road, the vehicle icon is located
on another road nearby. Because the new road is not stored in the map
data, the system automatically places the vehi-
cle icon on the nearest road available.
Updated road information will be included in
the next version of the map data.
The screen does not switch to the
night screen even after turning on
the headlights. The daytime screen was set the last time the
headlights were turned on.
Set the screen to the night screen mode using
when you turn on the headlights.
The map does not scroll even when
the vehicle is moving. The current location map screen is not dis-
played.
Press “MAP”.
The vehicle icon is not displayed. The current location map screen is not dis-
played.
Press “MAP”.
The location of the vehicle icon is
misaligned from the actual position. When using tire chains or replacing the tires,
speed calculations based on the speed sensor
may be incorrect. Drive the vehicle for a while [at approximately
30 km/h (19 MPH) for about 30 minutes] to
automatically correct the vehicle icon posi-
tion.
If this does not correct the vehicle icon posi-
tion, contact an INFINITI dealer.
The map data has a mistake or is incomplete
(the vehicle icon position is always misaligned
in the same area). Updated road information will be included in
the next version of the map data.
Symptom Possible cause Possible solution
Symptom Possible cause Possible solution
Waypoints are not included in
the auto reroute calculation. Waypoints that you have already passed are not included in
the auto reroute calculation. If you want to go to that waypoint
again, you need to edit the route.
Route information is not dis-
played. Route calculation has not yet been performed.
Set the destination and perform route
calculation.
You are not driving on the suggested route. Drive on the suggested route.
Route guidance is set to off. Turn on route guidance.
Route information is not provided for certain types of roads
(roads displayed in gray). This is not a malfunction.
The auto reroute calculation (or
detour calculation) suggests
the same route as the one pre-
viously suggested. Route calculations took priority conditions into consider-
ation, but the same route was calculated.
This is not a malfunction.
A waypoint cannot be added. Five waypoints are already set on the route, including ones
that you have already passed. A maximum of 5 waypoints can be set
on the route. If you want to go to 6 or
more waypoints, perform route calcu-
lations multiple times as necessary.
The suggested route is not dis-
played. Roads near the destination cannot be calculated.
Reset the destination to a main or or-
dinary road, and recalculate the route.
The starting point and destination are too close. Set a more distant destination.
The starting point and destination are too far away. Divide your trip by selecting one or two
intermediate destinations, and per-
form route calculations multiple times.
There are time restricted roads (by the day of the week, by
time) near the current vehicle location or destination. Set [Use Time Restricted Roads] to
off.
Revision: 2010 May2011 QX56

BCS
PRECAUTIONSBCS-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006274786
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

BCS-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : System DescriptionINFOID:0000000006274789
OUTLINE
 BCM (Body Control Module) controls the various electrical components. It inputs the information required to
the control from CAN communication and the signal received from each switch and sensor.
 BCM has combination switch reading function for reading the operation status of combination switches (light,
turn signal, wiper and washer) in addition to a function fo r controlling the operation of various electrical com-
ponents. It also has the signal transmission function as the passed point of signal and the power saving con-
trol function that reduces the power c onsumption with the ignition switch OFF.
 BCM is equipped with the diagnosis function that perfo rms the diagnosis with CONSULT-III and various set-
tings.
BCM CONTROL FUNCTION LIST
System Reference
Combination switch reading system BCS-7, "
COMBINATION SWITCH READING SYSTEM : System
Diagram"
Signal buffer system
BCS-10, "SIGNAL BUFFER SYSTEM : System Diagram"
Power consumption control systemBCS-11, "POWER CONSUMPTION CONTROL SYSTEM : Sys-
tem Diagram"
Auto light system
EXL-11, "AUTO LIGHT SYSTEM : System Diagram"
Turn signal and hazard warning lamp systemEXL-18, "TURN SIGNAL AND HAZARD WARNING LAMP SYS-
TEM : System Diagram"
Headlamp system
EXL-10, "HEADLAMP SYSTEM : System Diagram"
Daytime running light systemEXL-14, "DAYTIME RUNNING LIGHT SYSTEM : System Dia-
gram"
Parking, license plate, side maker and tail lamps system
EXL-18, "PARKING, LICENSE PLATE, SIDE MARKER AND
TAIL LAMP SYSTEM : System Diagram"
Front fog lamp system
EXL-20, "FRONT FOG LAMP SYSTEM : System Diagram"
Exterior lamp battery saver systemEXL-20, "EXTERIOR LAMP BATTERY SAVER SYSTEM : Sys-
tem Diagram"
Interior room la
mp control system INL-6, "INTERIOR ROOM LAMP CONTROL SYSTEM : System
Diagram"
Interior room lamp battery saver system
INL-9, "INTERIOR ROOM LAMP BATTERY SAVER SYSTEM :
System Diagram"
Front wiper and washer systemWW-7, "FRONT WIPER AND WASHER SYSTEM : System Dia-
gram"
Rear wiper and washer systemWW-10, "REAR WIPER AND WASHER SYSTEM : System Dia-
gram"
Headlamp washer system
WW-13, "HEADLAMP WASHER SYSTEM : System Diagram"
Warning chime systemWCS-6, "WARNING CHIME SYSTEM : System Diagram"
Power door lock systemDLK-16, "System Diagram"
Infiniti Vehicle immobilizer System (IVIS)SEC-15, "INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS :
System Diagram"
Vehicle security systemTheft warning alarm
SEC-17, "VEHICLE SECURITY SYSTEM : System Diagram"Panic alarm
Rear window defogger system DEF-6, "
System Diagram"
Intelligent Key system/engine start systemDLK-18, "INTELLIGENT KEY SYSTEM : System Diagram"
Power window system PWC-8, "SystemDiagram"
Retained accessory power (RAP) systemPWC-8, "System Description"
Revision: 2010 May2011 QX56

BCS-10
< SYSTEM DESCRIPTION >
SYSTEM
NOTE:
For details of wiper volume dial position, refer to WW-7, "
FRONT WIPER AND WASHER SYSTEM : System Description".
SIGNAL BUFFER SYSTEM
SIGNAL BUFFER SYSTEM : System DiagramINFOID:0000000006274792
SIGNAL BUFFER SYSTEM : System DescriptionINFOID:0000000006274793
OUTLINE
BCM has the signal transmission function that output s/transmits each input/received signal to each unit.
Signal transmission function list
6 OFF ON ON
7 OFF ON OFF
Wiper volume
dial position Switch status
WIP VOLUME 1 WIP VOLUME 2 WIP VOLUME 3
JMMIA0381GB
Signal name Input Output Description
 Ignition switch ON signal
 Ignition switch signal Push-button ignition switch
(Push switch) IPDM E/R (CAN)
 Driver seat control unit (CAN)
 Pre-crash seat
belt control
unit (CAN) Inputs the push-button ignition
switch (push switch) signal and
transmits the ignition switch sta-
tus judged with BCM via CAN
communication.
Door switch signal Any door switch  Combination meter (CAN)
 IPDM E/R (CAN)
 Driver seat control unit (CAN)
 Pre-crash seat
belt control
unit (CAN) Inputs the door switch signal
and transmits it via CAN com-
munication.
Oil pressure switch signal IPDM E/R (CAN) Combination meter (CAN) Transmits the received oil pres-
sure switch signal via CAN
communication.
Revision: 2010 May2011 QX56

BCS
SYSTEMBCS-11
< SYSTEM DESCRIPTION >
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POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTRO
L SYSTEM : System DiagramINFOID:0000000006274794
POWER CONSUMPTION CONTROL SYSTEM : System DescriptionINFOID:0000000006274795
OUTLINE
 BCM incorporates a power saving control function t hat reduces the power consumption according to the
vehicle status.
 BCM switches the status (control m ode) by itself with the power saving control function. It performs the sleep
request to each unit (IPDM E/R, combination meter, dr iver seat control unit, automatic back door control
module, pre-crash seat belt control unit and CAN gat eway) that operates with the ignition switch OFF.
Normal mode (wake-up)- CAN communication is normally performed with other units
- Each control with BCM is operating properly
CAN communication sleep mode (CAN sleep)- CAN transmission is stopped
- Control with BCM only is operating
Stop lamp switch signal Stop lamp switch TCM (CAN) Inputs the stop lamp switch 1
signal and stop lamp switch 2
signal, and transmits it via CAN
communication.
Low tire pressure warning lamp
signal Low tire pressu
re warning con-
trol unit Combination meter (CAN)Transmits the received low tire
pressure warning signal via
CAN communication.
Buzzer request signal Low tire pressu
re warning con-
trol unit Combination meter (CAN)Transmits the received buzzer
request signal via CAN commu-
nication.
Horn request signal Low tire pressu
re warning con-
trol unit IPDM E/R (CAN)Received the horn request sig-
nal, transmits the horn reminder
signal via CAN communication.
Signal name Input Output Description
JMMIA0382GB
Revision: 2010 May2011 QX56