The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never 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.

Precaution for Battery Service

INFOID:0000000007134263

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Service Procedure Precautions for Models with a Pop-up Roll Bar

INFOID:0000000007369599

WARNING:

Always observe the following items for preventing accidental activation.
• Risk of passenger injury or death may increase if the pop-up roll bar does not deploy during a roll

over collision. In order to reduce the chance of an incident where the pop-up roll bar is inoperative,
all maintenance must be performed by a NISSAN or INFINITI dealer.

• Before removing and installing the pop-up roll bar component parts and harness, always turn the

ignition switch OFF, disconnect the battery negative terminal, and wait for 3 minutes or more. (The
purpose of this operation is to discharge electricity that is accumulated in the auxiliary power supply
circuit in the air bag diagnosis sensor unit.)

• When repairing, removing, and installing a pop-up roll bar, always refer to SRS AIR BAG and SRS

AIR BAG CONTROL warnings in the Service Manual.

Revision: 2012 March

2011 Murano CrossCabriolet

WCS-4

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000006940085

Component Description

INFOID:0000000006940086

JSNIA4273ZZ

Seat belt buckle switch (driver side)

ABS actuator and electric unit (con-
trol unit)
Refer to

BRC-8, "Component Parts

Location"

BCM
Refer to

BCS-4, "BODY CONTROL

SYSTEM : Component Parts Loca-
tion"

Parking brake

Combination meter

Key slot

Unit

Description

Combination meter

• Receives a buzzer output signal from the BCM with CAN communication line and sounds the

buzzer.

• Judges whether the parking brake is released from the vehicle speed signal received from the

ABS actuator and electric unit (control unit) with CAN communication line and the parking
brake switch signal from the parking brake switch, and sounds the buzzer if necessary.

BCM

Based on the signals received from various units and switches, transmits the buzzer output sig-
nal to the combination meter via CAN communication.

ABS actuator and electric unit
(control unit)

Transmits the vehicle speed signal to combination meter with CAN communication line.

Seat belt buckle switch (driver
side)

Transmits a seat belt buckle switch signal (driver side) to the combination meter.

Parking brake switch

Transmits the parking brake switch signal to the combination meter.

Key slot

Transmits the key slot switch signal to BCM.

Revision: 2012 March

2011 Murano CrossCabriolet

WCS

COMPONENT PARTS

WCS-5

< SYSTEM DESCRIPTION >

Combination Meter

INFOID:0000000007125053

The buzzer (1) for the warning chime system is integrated in the
combination meter.

JPNIA0741ZZ

Revision: 2012 March

2011 Murano CrossCabriolet

WCS-6

< SYSTEM DESCRIPTION >

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM

WARNING CHIME SYSTEM : System Diagram

INFOID:0000000006940083

WARNING CHIME SYSTEM : System Description

INFOID:0000000006940084

COMBINATION METER

The combination meter sounds the alarm buzzer installed 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

JPNIA1556GB

Warning functions

Out line

Warning judgment unit

Refer to

Light reminder warning chime

The warning chime sounds when the ignition
switch is in OFF or ACC position with the com-
bination switch (lighting switch) in the 1st or
2nd position and the driver side door open.

BCM

WCS-8,
"LIGHT RE-
MINDER
WARNING
CHIME : Sys-
tem Descrip-
tion"

Seat belt warning chime

The warning chime sounds when the driver
seat belt is unfastened with the ignition switch
in ON position.

BCM

WCS-8, "SEAT
BELT WARN-
ING CHIME :
System De-
scription"

Revision: 2012 March

2011 Murano CrossCabriolet

WCS

WARNING CHIME SYSTEM

WCS-7

< SYSTEM DESCRIPTION >

WARNING CHIME SYSTEM : Fail-Safe

INFOID:0000000007134423

FAIL-SAFE

The combination meter activates the fail-safe control if CAN communication with each unit is malfunctioning.

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 meter

WCS-9,
"PARKING
BRAKE RE-
LEASE WARN-
ING CHIME :
System De-
scription"

Key warning chime

The warning chime sounds when the ignition
switch is in OFF or ACC position with the key
inserted and the driver side door open.

BCM

WCS-10, "KEY
WARNING
CHIME : Sys-
tem Descrip-
tion"

Warning functions

Out line

Warning judgment unit

Refer to

Function

Specifications

Speedometer

Reset to zero by suspending communication.

Tachometer

Engine coolant temperature gauge

Illumination control

When suspending communication, changes to nighttime
mode.

Information display

Door open warning

The display turns off by suspending communication.

Trunk open warning

Parking brake release warning

Low tire pressure warning

Fuel filler cap warning

Instantaneous fuel warning

• When reception time of an abnormal signal is 2 seconds or

less, the last received datum is used for calculation to indi-
cate the result.

• When reception time of an abnormal signal is more than two

seconds, the last result calculated during normal condition
is indicated.

Average fuel consumption

Average vehicle speed

Travel distance

Buzzer

The buzzer turns off by suspending communication.

Warning lamp/indicator
lamp

ABS warning lamp

The lamp turns on by suspending communication.

SLIP indicator lamp

Brake warning lamp

AWD warning lamp

Malfunction indicator lamp

Low tire pressure warning lamp

The lamp turns ON after flashing for 1 minute.

High beam indicator lamp

The lamp turns off by suspending communication.

Turn signal indicator lamp

Light indicator lamp

Oil pressure warning lamp

CRUISE indicator lamp

O/D OFF indicator lamp

VDC OFF indicator lamp

AWD LOCK indicator lamp

Key warning lamp

Revision: 2012 March

2011 Murano CrossCabriolet

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