2011 INFINITI QX56 sensor

AV-160
< DTC/CIRCUIT DIAGNOSIS >
B2707 SENSOR HARNESS OPEN [CR-RR]
B2707 SENSOR HARNESS OPEN [CR-RR]
DTC LogicINFOID:0000000006216317
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000006216318
1.CHECK HARNESS CORNER SENSOR REAR RH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sonar control unit connector and corner sensor rear RH connector.
3. Check continuity between sonar control unit harne ss connector and corner sensor rear RH harness con-
nector.
4. Check continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK HARNESS CORNER SENSOR REAR RH GROUND CIRCUIT
Check continuity between sonar control unit harness connector and corner sensor rear RH harness connector.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
DTC No. CONSULT-III indication DTC detection condition Troubleshooting B2707 SENSOR HARNESS
OPEN [CR-RR] [B2707]
Corner sensor rear RH harness circuit is open. Check corner sensor rear RH circuit.
Sonar control unit Corner sensor rear RH
Continuity
Connector Terminal Connector Terminal
M47 6 B253 1 Existed
Sonar control unit GroundContinuity
Connector Terminal
M47 6 Not existed
Sonar control unit Corner sensor rear RH Continuity
Connector Terminal Connector Terminal
M47 12 B253 2 Existed
Revision: 2010 May2011 QX56

AV
MULTI AV SYSTEM SYMPTOMSAV-201
< SYMPTOM DIAGNOSIS >
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RELATED TO CAMERA ASSISTANCE SONAR
The predicted course line display in
front view and rear view is malfunc-
tioning. The “Steer. Angle Sensor” is not turned ON at “Con-
nection Confirmation” of “Camera Cont.”
Steering angle sensor signal circuits.
 The front view screen is not dis- played.
 The front of Birds-Eye view
screen is not displayed. Check the item Front
Camera in “Connec-
tion Confirmation”
mode of “Camera
Cont.”  Image Output Signal: NG
 COMM Status: NG
 COMM Line: NG
 Front camera image signal circuit
malfunction.
 Front camera po wer supply and
ground circuits malfunction.
Refer to AV- 1 8 2 , "
Diagnosis Proce-
dure".
 Image Output Signal: OK
 COMM Status: NG
 COMM Line: NG Front camera communication signal cir-
cuit malfunction. Refer to
AV-181, "
Di-
agnosis Procedure".
 The rear view screen is not dis- played.
 The rear of Birds-Eye view screen is not displayed. Check the item Rear
Camera in “Connec-
tion Confirmation”
mode of “Camera
Cont.”  Image Output Signal: NG
 COMM Status: NG
 COMM Line: NG
 Rear camera image signal circuit
malfunction.
 Rear camera po wer supply and
ground circuits malfunction.
Refer to AV- 1 8 5 , "
Diagnosis Proce-
dure".
 Image Output Signal: OK
 COMM Status: NG
 COMM Line: NG Rear camera communication signal cir-
cuits malfunction. Refer to
AV- 1 8 4 , "
Di-
agnosis Procedure".
 The front-side screen is not dis- played.
 The passenger side of Birds-Eye view screen is not displayed. Check the item Pass-
Side Camera in “Con-
nection Confirmation”
mode of “Camera
Cont.”  Image Output Signal: NG
 COMM Status: NG
 COMM Line: NG
 Side camera RH image signal circuit
malfunction.
 Side camera RH power supply and
ground circuits malfunction.
Refer to AV- 1 9 1 , "
Diagnosis Proce-
dure".
 Image Output Signal: OK
 COMM Status: NG
 COMM Line: NG  Side camera RH communication cir-
cuit malfunction. Refer to AV- 1 9 0 ,
"Diagnosis Procedure".
The driver side of Birds-eye view
screen is not displayed. Check the item Dr-
Side Camera at “Con-
nection Confirmation”
mode of “Camera
Cont.”  Image Output Signal: NG
 COMM Status: NG
 COMM Line: NG
 Side camera LH image signal circuit
malfunction.
 Side camera LH power supply and ground circuits malfunction.
Refer to AV- 1 8 8 , "
Diagnosis Proce-
dure".
 Image Output Signal: OK
 COMM Status: NG
 COMM Line: NG  Side camera LH communication cir-
cuit malfunction. Refer to AV- 1 8 7 ,
"Diagnosis Procedure".
When shift position is other than “R”
the front-side and front screen or the
Birds-Eye view and front screen re-
main displaying even if the vehicle
speed increases. —
Vehicle speed signal circuit malfunction
(around view moni
tor control unit).
Symptoms Check items
Probable malfunction location / Action
to take
Revision: 2010 May2011 QX56

AV-202
< SYMPTOM DIAGNOSIS >
MULTI AV SYSTEM SYMPTOMS
RELATED TO RGB IMAGE
RELATED TO VOICE CONTROL
RELATED TO AUDIO
Symptoms Check itemsProbable malfunction location / Action to
take
The malfunction is detected in the sonar in-
dicator
(Always displayed in red) The malfunction is detected in only 1 indica-
tor (Always displayed in red).
 Corner sensor malfunction in corre-
sponding area.
 Corner sensor harnes s circuit in corre-
sponding area.
Perform CONSULT-III “self-diagnosis” of
“SONAR”. Refer to AV- 4 7 , "
CONSULT-III
Function".
The malfunction is detected in all 4 indicators
(Always displayed in red).  Corner sensor ground circuit malfunc-
tion.
Perform CONSULT-III “self-diagnosis” of
“SONAR”. Refer to AV- 4 7 , "
CONSULT-III
Function".
 Sonar control unit power supply and ground circuits malfunction.
 AV communication circuits malfunc-
tion.
Perform CONSULT-III “self-diagnosis” of
“MULTI AV”. Refer to AV- 3 9 , "
CONSULT-
III Function".
Symptoms Check items Probable malfunction location
RGB image is not shown. — RGB digital image signal circuit malfunction.
Refer to
AV- 1 6 6 , "
Diagnosis Procedure".
Symptoms Check items Probable malfunction location
The voice cannot be controlled
even if the voice control screen
is displayed. Voice sounds at “Voice Microphone Test”
of Confirmation/Adjustment mode.
AV control unit malfunction.
Replace AV control unit. Refer to
AV- 2 1 2 , "
Removal and
Installation".
Voice does not sound at “Voice Micro-
phone Test” of Confirmation/Adjustment
mode. Microphone circuit malfunction.
Refer to
AV- 1 7 8 , "
Diagnosis Procedure".
The voice cannot be controlled
(Voice control screen is not dis-
played).  Hands-free phone system can be oper-
ated.
 Steering switch's “SOURCE”, “MENU UP”, “MENU DOWN” and “ENTER”
switch works, but “ ” it does not work. Steering switch malfunction.
Replace steering wheel. Refer to
ST-33, "
Exploded
View".
Steering switch's “SOURCE”, “MENU
UP”, “MENU DOWN”, “ ” and “ENTER”
switches do not work. Steering switch signal A circuit malfunction.
Refer to
AV- 1 9 3 , "
Diagnosis Procedure".
None of the steering switch operations
work. Steering switch ground circuit malfunction.
Refer to
AV- 1 9 7 , "
Diagnosis Procedure".
Symptoms Check items Probable malfunction location
The disk cannot be removed. — Disk eject signal circuit malfunction.
Refer to
AV- 1 7 6 , "
Diagnosis Procedure".
Audio sound is not heard. No sound from all speakers.
 Amp. ON signal circuit malfunction.
 BOSE amp. power supply and ground circuits malfunc-
tion.
Sound is not heard from woofer.  Woofer power supply and ground circuit malfunction.
 Sound signal (woofer) circuit malfunction.
Sound is heard only from specific places. Sound signals circuit of suspect system.
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

AV
STEERING ANGLE SENSORAV-237
< REMOVAL AND INSTALLATION >
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STEERING ANGLE SENSOR
Exploded ViewINFOID:0000000006216402
DISASSEMBLY
Removal and InstallationINFOID:0000000006216403
REMOVAL
1. Remove spiral cable. Refer to SR-14, "Exploded View".
2. Remove steering angle sensor from spiral cable.
INSTALLATION
1. Install in the reverse order of removal.
2. Perform steering angle sensor neutral position adjustment. Refer to AV-39, "
CONSULT-III Function".
JSNIA0135ZZ
1. Spiral cable
2. Steering angle sensor
Revision: 2010 May2011 QX56

AV
SONAR SENSORAV-239
< REMOVAL AND INSTALLATION >
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SONAR SENSOR
Removal and InstallationINFOID:0000000006216405
REMOVAL
1. Press the spring fixing the sonar sensor (1) (black arrows).
2. Remove the sonar sensor from front bumper or rear bumper to
the white arrow direction.
3. Disconnect sonar sensor connector to remove sonar sensor.
INSTALLATION
Install the bumper when the pawl engages.
CAUTION:
The connector direction is within ±10 ° from the horizontal posi-
tion when assembling the bumper.
(2) : Bumper
SKIB9007E
A : Horizontal position
a: 10 °
JSNIA0325ZZ
Revision: 2010 May2011 QX56

BCS
PRECAUTIONSBCS-3
< PRECAUTION >
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N
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