2011 INFINITI QX56 warning

AV
DIAGNOSIS SYSTEM [SONAR CONTROL UNIT (WITH AROUND VIEW MONI-
TOR)]
AV-47
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM [SONAR CONT ROL UNIT (WITH AROUND VIEW
MONITOR)]
CONSULT-III FunctionINFOID:0000000006216222
APPLICATION ITEMS
CONSULT-III can display each diagnostic item using the diagnostic test modes shown as follows:
ECU IDENTIFICATION
Displays the part number of sonar control unit.
SELF-DIAGNOSTIC RESULTS
For details, refer to AV-77, "DTC Index".
DATA MONITOR
*: Even when a buzzer (backward) is output c ondition, this item is indicated as OFF.
ACTIVE TEST
WORK SUPPORT
CORNER SEN DISTANCE SET
Corner sensor warning buzzer distance can be set to 4 phases as follows.
Test mode Function
Ecu Identification Sonar control unit part number can be read.
Self Diagnostic Result Sonar control unit checks the conditions and displays memorized error.
Data Monitor Sonar control unit input/output data in real time.
Active Test Gives a drive signal to a load to check the operation.
Work support Changes setting of each function.
Monitor Item Display Description
SONAR OPE On Around view monitor is ON. (sonar system is ON)
Off Around view monitor is OFF. (sonar system is OFF)
BUZZER OUTPUT
*On Buzzer (forward) is output condition. Off Buzzer (forward) is non-output condition.
CR SEN [FL]
CR SEN [FR]
CR SEN [RL]
CR SEN [RR] ERROR When a sensor is abnormal.
LV.0 When a sensor is not detection.
LV. 2 The distance between the corner sensor and an obstacle is 50 cm (19.6 in) or more and
less then 60 cm (23.6 in).
LV. 3 The distance between the corner sensor and an obstacle is 30 cm (11.8 in) or more and
less then 50 cm (19.6 in).
LV.4 The distance between corner sensor and an obstacle less than 30 cm (11.8 in).
Active test item Function
BUZZER This test is able to check buzzer operation.
SONAR SENSOR This test is able to check each sonar sensor operation.
Work support item Function
CORNER SEN DISTANCE SET Corner sensor warning buzzer distance is adjustable to 4 phases.
Revision: 2010 May2011 QX56

AV-48
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM [SONAR CONTROL UNIT (WITH AROUND VIEW MONI-
TOR)]
The default of this model is “NORMAL”.
Warning item FARTHER FAR NORMAL (Default) NEAR
Second warning 70 – 80 cm (27.5 – 31.4 in) 60 – 70 cm (23.6 – 27.5 in) 50 – 60 cm (19.6 – 23.6 in) 40 – 50 cm (15.7 – 19.6 in)
Third warning 50 – 70 cm (19.6 – 27.5 in) 40 – 60 cm (15.7 – 23.6 in) 30 – 50 cm (11.8 – 19.6 in) 30 – 40 cm (11.8 – 15.7 in)
Fourth warning Less than 50 cm (19.6 in) Less than 40 cm (15.7 in) Less than 30 cm (11.8 in) Less than 30 cm (11.8 in)
Revision: 2010 May2011 QX56

AV
AV CONTROL UNITAV-57
< ECU DIAGNOSIS INFORMATION >
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Fail-SafeINFOID:0000000006216226
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.
DTC IndexINFOID:0000000006216227
SELF-DIAGNOSIS RESULTS DISPLAY ITEM
158 GroundRGB digital image signal
(+)
OutputIgnition
switch ON Not connected connector. 1.3 V
159 Ground Satellite radio antenna sig-
nal InputIgnition
switch ON Not connected satellite an-
tenna connector.
5.0 V
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal name Input/
Output
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

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
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

BCS-12
< SYSTEM DESCRIPTION >
SYSTEM
Low power consumption mode (BCM sleep)- Low power consumption control is active
- CAN transmission is stopped
LOW POWER CONSUMPTION CONTROL WITH BCM
BCM reduces the power consumption with the following operation in the low power consumption mode.
 The reading interval of the each switches changes from 10 ms interval to 60 ms interval.
Sleep mode activation
 BCM receives the sleep-ready signal (ready) from IPDM E/R, combination meter and automatic back door
control module via CAN communication.
 BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are ful- filled.
 Each unit stops the transmission of CAN communication with the sleep wake up signal. BCM is in CAN com- munication sleep mode.
 BCM is in the low power consumption mode and perform the low power consumption control when all of the
BCM sleep conditions are fulfilled with CAN sleep condition.
Sleep condition
Wake-up operation
 BCM transmits sleep wake up signal (wake up) to eac h unit when any condition listed below is established,
and then goes into normal mode from low power consumption mode.
 Each unit starts transmissions with CAN communication by receiving sleep wake up signals. Each unit trans- mit wake up signals to BCM with CAN communication to convey the start of CAN communication.
CAN sleep condition BCM sleep condition
 Receiving the sleep-ready signal (ready) from all units
 Ignition switch: OFF
 Vehicle security system: Not operation
 Warning chime: Not operation
 Intelligent Key system buzzer: Not operation
 Stop lamp switch: OFF
 Turn signal indicator lamp: Not operation
Exterior lamp: OFF
 Door lock status: No change
 CONSULT-III communication status: Not communication
 Meter display signal: Non-transmission
 Door switch status: No change
 Rear window defogger: OFF
 Driver door lock status: No change  Interior room lamp battery saver: Time out
 RAP system: OFF
 IVIS: Not operation
 Remote keyless entry receiver communication status: No com-
munication
 LOCK indicator lamp: Not operation
 ACC indicator lamp: Not operation
 ON indicator lamp: Not operation
Revision: 2010 May2011 QX56

BCS-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000006274796
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM. Refer to BCS-57, "
DTCIndex".
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate ea ch device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration  Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection item Diagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ×××
— AIR CONDITONER* ××
 Intelligent Key system
 Engine start system INTELLIGENT KEY
×××
Combination switch COMB SW ×
Body control system BCM ×
IVIS IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Back door TRUNK ×
Vehicle security system THEFT ALM ×××
RAP system RETAINED PWR ×
Signal buffer system SIGNAL BUFFER ××
Revision: 2010 May2011 QX56