Nissan Murano Z51 (2008 year). Manual — part 349

At the beginning of inspection, confirm the condition of power supply circuit, check that the battery is charged
and fuses and fusible links are not blown.

Is power supply circuit normal?

YES-1 >> GO TO 3. (With CONSULT-III)
YES-2 >> GO TO 4. (Without CONSULT-III)
NO

>> Repair or replace the battery and fuse/fusible links.

PERFORM SELF-DIAGNOSIS USING “CONSULT-III” (WITH CONSULT-III)

Perform “AIR BAG” Self Diagnostic Result.

Is “MALFUNCTIONING PART” displayed on CONSULT-III?

YES

>> GO TO 5.

>> Repeat DTC confirmation with diagnostic procedure.

JMHIA0027GB

Revision: 2008 October

2009 Murano

DIAGNOSIS AND REPAIR WORK FLOW

SRC-9

< BASIC INSPECTION >

[FOR USA AND CANADA]

SRC

PERFORM SELF-DIAGNOSIS “AIR BAG” WARNING LAMP (WITHOUT CONSULT-III)

Check the air bag warning lamp status.
Is “MALFUNCTIONING PART” detected?

YES

>> GO TO 5.

>> Repeat DTC confirmation with diagnostic procedure.

REPAIR OR REPLACE

Repair or replace the malfunctioning part.
After the malfunction is repaired, erase the self-diagnostic result. Refer to

SRC-18, "Diagnosis Description"

SRC-20, "CONSULT-III Function"

>> GO TO 6.

FINAL CHECK

Perform “AIR BAG” Self Diagnostic Result with CONSULT-III and /or, air bag warning lamp status.

Are all malfunctions corrected?

YES

>> INSPECTION END

NO-1

>> GO TO 3. (With CONSULT-III)

NO-2

>> GO TO 4. (Without CONSULT-III)

Revision: 2008 October

2009 Murano

SRC-10

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

SRS AIR BAG SYSTEM

FUNCTION DIAGNOSIS

SRS AIR BAG SYSTEM

System Diagram

INFOID:0000000003367320

System Description

INFOID:0000000004749684

Supplemental Restraint System (SRS) activates air bag module and seal belt pre-tensioner when it detects a
frontal collision or a side collision that is more than the specified limit. Together with other safety devices, it
reduces the impact that occupant receives when vehicle collision occurs.
Air bag sensor unit supplies power supply to air bag module and pre-tensioner seat belt when deceleration
that is more than the specified limit is detected by G sensor in air bag diagnosis sensor unit, crash zone sen-

JMHIA0491GB

Revision: 2008 October

2009 Murano

SRS AIR BAG SYSTEM

SRC-11

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

SRC

sor, or satellite sensor. Air bag module is composed of electric igniter (squib), filter, pyrotechnic material, and
gas generating material. When air bag module receives a signal from air bag sensor unit, air bag module
ignites pyrotechnic material using electric igniter (squib) so that gas generating material generates high tem-
perature nitrogen gas. The gas through filter activates air bag and seat belt pre-tensioner.

AIR BAG DIAGNOSIS SENSOR UNIT FUNCTIONS

Air bag diagnosis sensor unit has the following functions.
• Detects a collision and supplies the energy for deploying air bag and seat belt pre-tensioner.
• Detects and records electrical malfunction in air bag system and seat belt pre-tensioner system, and blinking

air bag warning lamp.

• Detects and records the deployment of air bag and seat belt pre-tensioner, and turns ON air bag warning

lamp.

• Indicates malfunctioning portion via the number of blinks from the air bag warning lamp in the diagnosis

mode.

• Indicates the malfunction record via CONSULT-III.
• Suppresses the deployment of passenger air bag when passenger seat is empty or occupied by child or

child-seat.

• When passenger seat is occupied by child or child seat, turns ON passenger air bag OFF indicator.
• When judges that passenger seat is occupied by a adult or a child and passenger seat belt is not fasten,

turns ON seat belt warning lamp. Further information for the seat belt warning system, refer to

SRC-16,

"System Description"

COLLISION MODES

The operation of SRS is different depending on the collision modes applications. For example, the driver air
bag module, passenger air bag module, and seat belt pre-tensioner are activated in a frontal collision but not
in a side collision.
SRS configurations that are activated for the following collision modes.

: Apply —: Not apply

Collision Mode

Driver air

bag mod-

ule

Front pas-

senger air

bag mod-

ule

Front LH

seat belt

pre-ten-

sioner

Front RH

seat belt

pre-ten-

sioner

Front LH-

side air

bag mod-

ule

Front RH

side air

bag mod-

ule

LH side

curtain air

bag mod-

ule

RH side

curtain air

bag mod-

ule

Frontal collision

—

Left side collision

—

Right side collision

—

Revision: 2008 October

2009 Murano

SRC-12

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

SRS AIR BAG SYSTEM

Component Parts Location

INFOID:0000000003367322

: Up to VIN: JN8AZ18U*9W100000, JN8AZ18W*9W200000 (EXCEPT FOR MEXICO), JN8AZ18U*9W710000,

JN8AZ18W*9W810000 (FOR MEXICO)

: From VIN: JN8AZ18U*9W100001, JN8AZ18W*9W200001 (EXCEPT FOR MEXICO), JN8AZ18U*9W710001,

JN8AZ18W*9W810001 (FOR MEXICO)

: From VIN: JN8AZ18U*9W100001, JN8AZ18W*9W200001 (EXCEPT FOR MEXICO)

Component Description

INFOID:0000000004749685

Front passenger air bag module

M62

, M63

, M64

Driver air bag module M350, M351

Combination switch (Spiral cable)
M32

Front passenger air bag OFF indica-
tor M88

Air bag diagnosis sensor unit M59,
M73, M79

Satellite sensor (LH/RH)
• LH B37
• RH B211

Front seat belt pre-tensioner (LH/
RH)
• LH B36
• RH B213

Seat belt buckle switch (Driver side/
Passenger side)
• Driver side B409, B449
• Passenger side B437

Front side air bag module (LH/RH)
• LH B16
• RH B212

10. Side curtain air bag module

• LH B72
• RH B56

11.

Crash zone sensor E313

12. Occupant Classification System seat

sensor mat

13. Occupant Classification System con-

trol unit B215

JMHIA0493ZZ

Revision: 2008 October

2009 Murano

SRS AIR BAG SYSTEM

SRC-13

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

SRC

Component

Function

Air bag diagnosis sensor unit

Detects a collision and supplies power supply for deployment to air bag module and
pre-tensioner seat belt.

Air bag module
• Driver
• Passenger
• Side
• Curtain

Receives signal from air bag diagnosis sensor unit and deploys air bag.

Seat belt pre-tensioner

Receives signal from air bag diagnosis sensor unit and deploys seat belt pre-tension-
er.

Seat belt buckle switch

Controls deployment timing based on seat belt fastened or unfastened condition.

Crash zone sensor

Transmits signal to air bag diagnosis sensor unit when a frontal collision occurs.

Satellite sensor (LH/RH)

Transmits signal to air bag diagnosis sensor unit when a side collision occurs.

Occupant Classification System control unit

Detects passenger seat occupant and judges whether or not passenger seat air bag
is deployed.

Combination meter (air bag warning lamp)

Indicates air bag malfunctioning and deployment by blinking and illuminating air bag
warning lamp.

Passenger air bag OFF indicator

Indicates whether or not passenger air bag is in the activation mode based on the
judgement of Occupant Classification System.

Combination switch (spiral cable)

Supplies power supply to driver air bag module on steering wheel.

Revision: 2008 October

2009 Murano

SRC-14

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

OCCUPANT CLASSIFICATION SYSTEM

OCCUPANT CLASSIFICATION SYSTEM

System Diagram

INFOID:0000000003367324

OCCUPANT CLASSIFICATION SYSTEM

System Description

INFOID:0000000003367325

This Occupant Classification System (OCS) has the following function.

Suppress the deployment of passenger air bag when passenger seat is empty, or when occupied by child
and child-seat. Turns on passenger air bag OFF indicator (Cut-off telltale) when passenger seat is occu-
pied by child-seat and child.

Indicates malfunction portion with blinking times of air bag warning lamp in diagnosis mode.

Indicates the malfunctioning record by CONSULT-III.

NOTE:
Operation of air bag diagnosis sensor unit when air bag diagnosis sensor unit receives information from Occu-
pant Classification System (OCS)

Component Parts Location

INFOID:0000000003367326

JMHIA0496GB

Status (front passenger
seat)

Passenger air bag

OFF indicator (Cut-off

telltale)

Air bag warning lamp

Seat belt warning lamp
(when front passenger
seat is unbuckled)

Empty

Suppress

Off

Child/ child-seat

Suppress

Off

Adult

Enable to deploy

Off

Malfunction

Suppress

Blinking

Off

JMHIA0494ZZ

Revision: 2008 October

2009 Murano

OCCUPANT CLASSIFICATION SYSTEM

SRC-15

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

SRC

Component Description

INFOID:0000000003367327

Occupant classification system con-
trol unit B212

Occupant classification system seat
sensor mat

Front passenger air bag OFF indica-
tor M88

Occupant classification system con-
trol unit harness connector

Component parts

Outline of function

Occupant classification system seat
sensor mat

Detects if the passenger seat is empty or occupied

Occupant classification system control
unit

Transmits the passenger seat status (occupied or empty) to air bag diagnosis sensor unit

Passenger air bag OFF indicator

Turns the passenger air bag OFF indicator lamp ON when the passenger seat is occupied
by a child or a child-seat

Revision: 2008 October

2009 Murano

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Nissan Murano Z51 (2008 year). Manual — part 349

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