warning INFINITI QX56 2011 Factory Service Manual

WCS
PRECAUTIONSWCS-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006369725
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

WCS
COMPONENT PARTSWCS-5
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Combination MeterINFOID:0000000006222539
The buzzer (1) for the warning chime system is integrated in the
combination meter.
JSNIA3016ZZ
Revision: 2010 May2011 QX56

WCS-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System DiagramINFOID:0000000006222683
WARNING CHIME SYSTEM : System DescriptionINFOID:0000000006222684
COMBINATION METER
The combination meter sounds the alarm buzzer install ed in the combination meter when receiving the buzzer
output signal transmitted from each unit.
BCM
BCM receives signals from various units and transmits a buzzer output signal to the combination meter via
CAN communication if it judges that the warning buzzer should be activated.
WARNING CHIME FUNCTION LIST
JSNIA3116GB
Warning functions Out line Warning judgment unit Refer to
Light reminder warning chime The warning chime sounds when the ignition
s w i t c h i s i n O F F o r A C C p o s i t i o n w i t h t h e c o m -
bination switch (lighting switch) in the 1st or
2nd position and the driver side door open. BCMWCS-8,
"LIGHT RE-
MINDER
WARNING
CHIME : Sys-
tem Descrip-
tion"
Front fog light reminder warning chime
The warning chime sounds when the ignition
switch is turned to LOCK, OFF or ACC posi-
tion from ON position, with combination switch
(lighting switch) is in AUTO position and the
front fog lamp switch in ON position. BCMWCS-10,
"FRONT FOG
LIGHT RE-
MINDER
WARNING
CHIME : Sys-
tem Descrip-
tion"
Revision: 2010 May2011 QX56

WCS
SYSTEMWCS-7
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WARNING CHIME SYSTEM : Fail-SafeINFOID:0000000006369726
FA I L - S A F E
The combination meter activates the fail-safe contro l if CAN communication with each unit is malfunctioning.
Seat belt warning chimeThe warning chime sounds when the driver
seat belt is unfastened with the ignition switch
in ON position. BCMWCS-11,
"SEAT BELT
WARNING
CHIME : Sys-
tem Descrip-
tion"
Parking brake release warning chime
The warning chime sounds when the ignition
switch is in ON position with the parking brake
in operation and the vehicle speed 7 km/h (4.3
MPH) or more. Combination meterWCS-12,
"PA R K I N G
BRAKE RE-
LEASE WARN-
ING CHIME :
System De-
scription"
Warning functions Out line Warning judgment unit Refer to
Function Specifications
Speedometer
Reset to zero by suspending communication.
Tachometer
Engine coolant temperature gauge
Engine oil pressure gauge
Illumination control When suspending communication, changes to nighttime mode.
Information display Odo/trip meter An indicated value is maintained at communications blackout.
Shift position indicator The display turns OFF by suspending communication.
Door open warning The display turns OFF by suspending communication.
Buzzer The buzzer turns OFF by suspending communication.
Revision: 2010 May2011 QX56

WCS-8
< SYSTEM DESCRIPTION >
SYSTEM
LIGHT REMINDER WARNING CHIME
LIGHT REMINDER WARNING CHIME : System DiagramINFOID:0000000006222543
LIGHT REMINDER WARNING CHIME : System DescriptionINFOID:0000000006222544
WARNING CHIME OPERATION CONDITIONS
If all of the following conditions are fulfilled.
WARNING CHIME CANCEL CONDITIONS
Warning lamp/indicator lampABS warning lamp
The lamp turns ON by suspending communication.
VDC warning lamp
Brake warning lamp
IBA OFF indicator lamp
4WD warning lamp
Malfunction indicator lamp
VDC OFF indicator lamp
CRUISE warning lamp
Low tire pressure warning lamp The lamp blinking caused by suspending communication.
High beam indicator lamp
The lamp turns OFF by suspending communication.
Turn signal indicator lamp
Tail lamp indicator lamp
A/T CHECK indicator lamp
Key warning lamp
ATP warning lamp
Lane departure warning lamp
LDP ON indicator lamp
CRUISE indicator lamp
Oil pressure warning lamp
SNOW mode indicator lamp
TOW mode indicator lamp
CK SUSP indicator lamp
BSW indicator lamp
Function Specifications
JSNIA2421GB
Operation conditions
Ignition switch OFF or ACC position
Combination switch (Lighting
switch) 1st or 2nd position
Driver door Open [front door switch (driver side) ON]
Revision: 2010 May2011 QX56

WCS
SYSTEMWCS-9
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Warning is canceled if any of t he following conditions is fulfilled.
SIGNAL PATH
1. BCM requires warning chime output to combination meter when it judges light reminder warning chime is
necessary from signals below.
2. Combination meter sounds integrated buzzer, followi ng the warning chime output requirement (below sig-
nal) from BCM.
TIMING CHART
FRONT FOG LIGHT REMINDER WARNING CHIME
Operation conditions
Ignition switch ON
Combination switch (Lighting
switch) OFF or AUTO position
Driver door Close [front door switch (driver side) OFF]
Signal name Signal path
Ignition switch signal —
Combination switch signal Combination switch (Lighting switch) BCM
Driver door switch signal Front door switch (driver side) BCM
Signal name Signal path
Buzzer output signal BCM Combination meter
JSNIA2426GB
Revision: 2010 May2011 QX56

WCS-10
< SYSTEM DESCRIPTION >
SYSTEM
FRONT FOG LIGHT REMINDER WARNING CHIME : System Diagram
INFOID:0000000006222545
FRONT FOG LIGHT REMINDER WARNING CHIME : System DescriptionINFOID:0000000006222546
WARNING CHIME OPERATION CONDITIONS
Warning chime sounds during 2 seconds when the ignition sw itch is in LOCK, OFF or ACC position, if all of
below operation conditions is met.
SIGNAL PATH
1. BCM requires warning chime output to combination meter when it judges front fog light reminder warning
chime is necessary from signals below.
2. Combination meter sounds integrated buzzer, following the warning chime output requirement (below sig- nal) from BCM.
TIMING CHART
SEAT BELT WARNING CHIME
JSNIA3117GB
Operation conditions
Ignition switch ON position
Combination switch (Lighting
switch) AUTO position and front fog lamp switch ON
position
Signal name Signal path
Ignition switch signal —
Combination switch signal Combination switch (Lighting switch) BCM
Signal name Signal path
Buzzer output signal BCM Combination meter
JSNIA3110GB
Revision: 2010 May2011 QX56

WCS
SYSTEMWCS-11
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SEAT BELT WARNING CHIME : System DiagramINFOID:0000000006222685
SEAT BELT WARNING CHIME : System DescriptionINFOID:0000000006222686
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled.
WARNING CANCEL CONDITIONS
Warning is canceled if any of t he following conditions is fulfilled.
SIGNAL PATH
1. BCM requires warning chime output to combination meter when it judges seat belt warning chime is nec-
essary from signals below.
2. Combination meter sounds integrated buzzer, followi ng the warning chime output requirement (below sig-
nal) from BCM.
JSNIA3118GB
Operation conditions
Ignition switch ON
Driver seat belt Unfastened [seat belt buckle switch (driver side) ON]
Operation conditions
Ignition switch OFF
Seat belt (driver side) Fastened (driver side seat belt buckle switch OFF)
6 seconds after the start of warning sound
Signal name Signal path
Ignition switch signal —
Seat belt buckle switch signal
(driver side) Seat belt buckle switch (driver side) Combination meter
BCM
Signal name Signal path
Buzzer output signal BCM Combination meter
Revision: 2010 May2011 QX56

WCS-12
< SYSTEM DESCRIPTION >
SYSTEM
TIMING CHART
SOUND SPECIFICATION
PARKING BRAKE RELEASE WARNING CHIME
PARKING BRAKE RELEASE WARNING CHIME : System DiagramINFOID:0000000006222547
PARKING BRAKE RELEASE WARNING CHIME : System DescriptionINFOID:0000000006222548
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled.
WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions are fulfilled.
JSNIA3123GB
J S N I A 3 111 G B
JSNIA2422GB
Operation conditions
Ignition switch ON
Parking brake During the operation (parking brake switch ON)
Vehicle speed Approximately 7 km/h (4.3 MPH) or more
Revision: 2010 May2011 QX56

WCS
SYSTEMWCS-13
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Combination meter sounds integrated buzzer when it judges that parking brake release warning chime is nec-
essary from signals below.
TIMING CHART
SOUND SPECIFICATION
Operation conditions
Ignition switch OFF
Parking brake Release condition (parking brake switch OFF)
Vehicle speed Approximately 3 km/h (1.9 MPH) or less
Signal name Signal path
Ignition switch signal —
Parking brake switch signal Parking brake switch Combination meter
Vehicle speed signal ABS actuator and electric unit (control unit) Combination meter
JSNIA2428GB
JSNIA3139GB
Revision: 2010 May2011 QX56