Nissan Murano Z51 (2008 year). Manual - part 350

 

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Nissan Murano Z51 (2008 year). Manual - part 350

 

 

SRC-16

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

PASSENGER SEAT BELT WARNING SYSTEM

PASSENGER SEAT BELT WARNING SYSTEM

System Diagram

INFOID:0000000003367328

System Description

INFOID:0000000003367329

This Passenger Seat Belt Warning System has the following function.

Turns ON  seat belt warning lamp, when the Occupant Classification System (OCS) judges adult or child in the
passenger seat and the passenger seat belt buckle switch is not on.
NOTE:
In addition, a seat belt warning lamp illuminates and a seat belt alarm sounds, when the driver seat belt buckle
switch is not on, This does not relate to the air bag sensor. (Refer to BCM.)

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

JMHIA0498GB

Status (front passenger 
seat)

Passenger air bag 

Passenger air bag OFF 
indicator (Cut-off tell-
tale)

Air bag warning lamp

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

Empty

Suppress

Off

Off

Off

Child/ child-seat

Suppress

On

Off

On

Adult

Enable to deploy

Off

Off

On

Malfunction

Suppress

On

Blinking

Off

Revision: 2008 October

2009 Murano

PASSENGER SEAT BELT WARNING SYSTEM

SRC-17

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

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Component Parts Location

INFOID:0000000003367330

Component Description

INFOID:0000000003367331

1.

Combination meter (Seat belt warn-
ing lamp) M34

2.

Seat belt buckle switch (Driver side) 
B409, B449

3.

Seat belt buckle switch (Passenger 
side) B437

A.

Combination meter panel

B.

Driver side

C.

Passenger side

JMHIA0557ZZ

Component parts

Outline of function

Seat belt buckle switch (Driver side)

Detects if the driver seat belt is fastened or unfastened
NOTE:
Lighting of a seat belt warning lamp and a seat belt alarm are outputted when the seat 
belt buckle switch (driver side) is not put on, but it does not relate to an air bag diag-
nosis sensor unit

Seat belt buckle switch (Passenger side)

Detects if the seat belt buckle switch (passenger side) is fastened or unfastened

Combination meter (Seat belt warning lamp)

Turns the seat belt warning lamp ON when the passenger seat belt is unfastened

Revision: 2008 October

2009 Murano

SRC-18

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

DIAGNOSIS SYSTEM (AIRBAG)

DIAGNOSIS SYSTEM (AIRBAG)

Diagnosis Description

INFOID:0000000003367332

CAUTION:

• Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-

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

• Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a

new one.

• Keep ground portion clean.

DIAGNOSIS FUNCTION

• The SRS self-diagnosis results can be read by using air bag warning lamp and/or CONSULT-III.
• The user mode is exclusively prepared for the customer (driver). This mode warns the driver of a system

malfunction through the operation of the air bag warning lamp.

• The diagnosis mode allows the technician to locate and inspect the malfunctioning part.
• The mode applications for the air bag warning lamp and CONSULT-III are as follows.

HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.

Information from Customer.

• WHAT..... Vehicle model.
• WHEN..... Date, Frequencies.
• WHERE..... Road conditions.
• HOW..... Operating conditions, Symptoms.

Preliminary Check.

Check that the following parts are in good order.
• Battery (Refer to 

PG-3, "How to Handle Battery"

).

• Fuse (Refer to

PG-79, "Fuse"

 ).

• System component-to-harness connections.

HOW TO ERASE SELF-DIAGNOSTIC RESULTS (With CONSULT-III)

• “SELF-DIAG [CURRENT]”

A current self-diagnosis result is displayed on CONSULT-III screen in real time.
After the malfunction is repaired completely, no malfunction is detected on “SELF-DIAG [CURRENT]”.

• “SELF-DIAG [PAST]”

Return to “SELF-DIAG [CURRENT]” CONSULT-III screen by touching “BACK” key of CONSULT-III and
select “SELF-DIAG [CURRENT]” in SELECT DIAG MODE. Touch “ERASE” in “SELF-DIAG [CURRENT]”
mode.
NOTE:
If the memory of the malfunction in “SELF-DIAG [PAST]” is not erased, the user mode shows the system
malfunction by the operation of the warning lamp even if the malfunction is repaired completely.

• “TROUBLE DIAG RECORD”

The memory of “TROUBLE DIAG RECORD” cannot be erased.

HOW TO ERASE SELF-DIAGNOSTIC RESULTS (Without CONSULT-III)

After a malfunction is repaired, turn the ignition switch OFF for at least one second, then turn ignition switch
ON diagnosis mode returns to the user mode. At that time the self-diagnosis result is cleared.

User mode

Diagnosis mode

Display type

Air bag warning lamp

X

X

ON-OFF operation

CONSULT-III

X

Monitoring

Revision: 2008 October

2009 Murano

DIAGNOSIS SYSTEM (AIRBAG)

SRC-19

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

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DIAGNOSTIC PROCEDURE (User mode) 

Checking air bag operation according to air bag warning lamp-User mode

1.

Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.

2.

Compare the air bag warning lamp blinking pattern with the
examples.

Warning lamp examples (User mode)

BF-1845D

Air bag warning lamp operation -User mode 

SRS condition

Reference item

• No malfunction is detected
• No further action is necessary

• The system is malfunctioning and 

needs to be repaired as indicated

Go to 

SRC-20, "CONSULT-III Func-

tion"

SHIA0011E

SHIA0012E

Revision: 2008 October

2009 Murano

SRC-20

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

DIAGNOSIS SYSTEM (AIRBAG)

DIAGNOSTIC PROCEDURE (With CONSULT-III)

CONSULT-III Function

INFOID:0000000003367333

DIAGNOSIS MODE FOR CONSULT-III

• “SELF-DIAG [CURRENT]”

A current self-diagnosis results (also indicated with the number of air bag warning lamp blinks in diagnosis
mode) are displayed on CONSULT-III screen in real time. This refers to a malfunctioning part requiring
repairs.

• “SELF-DIAG [PAST]”

Diagnosis results previously stored in the memory are displayed on CONSULT-III screen. The stored results
are not erased until memory erasing is executed.

• “TROUBLE DIAG RECORD”

With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be displayed
on CONSULT-III screen.

• “DISCRIMINATED NO.”

The air bag diagnosis sensor unit for each vehicle model has its own individual classification number. This
number will be displayed on CONSULT-III screen, as shown. When replacing the air bag diagnosis sensor
unit, refer to the part number for the compatibility. After installation, replacement with a correct unit can be
checked by confirming this classification number on CONSULT-III screen.
After repair, check that the discriminated number of air bag diagnosis sensor unit installed to vehicle are the
same. Refer to 

SR-19, "Removal and Installation"

.

 HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-III

From User Mode to Diagnosis Mode

After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.

• Air bag is deployed
• Seat belt pre-tensioner is deployed

Go to 

SRC-130, "Diagnosis Proce-

dure"

 or 

SRC-132, "Diagnosis Pro-

cedure"

• Air bag diagnosis sensor unit is mal-

functioning

• Air bag power supply circuit is mal-

functioning

• Air bag warning lamp circuit is mal-

functioning

Go to 

SRC-167, "Diagnosis Proce-

dure"

• Air bag diagnosis sensor unit is mal-

functioning

• Air bag warning lamp circuit is mal-

functioning

Go to 

SRC-167, "Diagnosis Proce-

dure"

Air bag warning lamp operation -User mode 

SRS condition

Reference item

SHIA0013E

SHIA0014E

Diagnostic Mode

Description

SELF-DIAG RESULT

The self-diagnosis result is displayed (SELF-DIAG [CURRENT], [PAST], [RECORD])

DISCRIMINATED No.

The part number of diagnosis sensor unit is displayed

Revision: 2008 October

2009 Murano

DIAGNOSIS SYSTEM (AIRBAG)

SRC-21

< FUNCTION DIAGNOSIS >

[FOR USA AND CANADA]

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From Diagnosis Mode to User Mode

To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-III until “SELECT SYSTEM”
appears, then diagnosis mode automatically changes to User mode.

SELF-DIAGNOSIS FUNCTION (Without CONSULT-III)

• The reading of these results is accomplished by “User mode” and “Diagnosis mode”.
• After a malfunction is repaired, turn ignition switch ON. Diagnosis mode returns to the user mode. At that

time, the self-diagnosis result is cleared.

HOW TO CHANGE SELF-DIAGNOSIS MODE WITHOUT CONSULT-III

PHIA0709E

Revision: 2008 October

2009 Murano

SRC-22

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

COMPONENT DIAGNOSIS

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000003367334

DTC B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air
bag warning lamp in the combination meter. Malfunctioning part can be detected by on board self-diagnosis
system and electro-diagnosis tester CONSULT-III.

OPERATION

It detects a shock that exceeds specified level and monitors such systems as the driver and passenger air
bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate
properly. 

STRUCTURE

It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat-
tery damage in collision.

INSTALLATION

Air bag diagnosis sensor unit is installed under the center console with fixed bolts.

DTC Logic

INFOID:0000000003367335

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-III.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-23, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1001
B1002
B1003
B1004
B1005

CONTROL  UNIT 

Air bag diagnosis sensor unit is out of 
order or mis-match

• Internal breakdown in air bag diag-

nosis sensor unit

• Mis-match between specification on 

vehicle and configuration in air bag 
diagnosis sensor unit

Revision: 2008 October

2009 Murano

B1001, B1002, B1003, B1004, B1005 DIAGNOSIS SENSOR UNIT

SRC-23

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

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Turn ignition switch ON.

>> GO TO 2.

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.
Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-142

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000003367336

With CONSULT-lll

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3

minutes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace wiring harness.

3.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit.

2.

Check the screen of CONSULT-III.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-40, "Intermittent Incident"

Revision: 2008 October

2009 Murano

SRC-24

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000003367337

DTC B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air
bag warning lamp in the combination meter. Malfunctioning part can be detected by on board self-diagnosis
system and electro-diagnosis tester CONSULT-III.

OPERATION

It detects a shock that exceeds specified level and monitors such systems as the driver and passenger air
bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate
properly. 

STRUCTURE

It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat-
tery damage in collision.

INSTALLATION

Air bag diagnosis sensor unit is installed under the center console with fixed bolts.

DTC Logic

INFOID:0000000003367338

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-III.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-25, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1006
B1007
B1008
B1009
B1010

CONTROL UNIT 

Air bag diagnosis sensor unit is out of 
order or mis-match

• Internal breakdown in air bag diag-

nosis sensor unit

• Mis-match between specification on 

vehicle and configuration in air bag 
diagnosis sensor unit

Revision: 2008 October

2009 Murano

B1006, B1007, B1008, B1009, B1010 DIAGNOSIS SENSOR UNIT

SRC-25

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

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>> GO TO 2.

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.

Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-142

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000003367339

With CONSULT-lll

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3

minutes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace wiring harness.

3.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit.

2.

Check the screen of CONSULT-III.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

Revision: 2008 October

2009 Murano

SRC-26

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000003367340

DTC B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air
bag warning lamp in the combination meter. Malfunctioning part can be detected by on board self-diagnosis
system and electro-diagnosis tester CONSULT-III.

OPERATION

It detects a shock that exceeds specified level and monitors such systems as the driver and passenger air
bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate
properly. 

STRUCTURE

It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat-
tery damage in collision.

INSTALLATION

Air bag diagnosis sensor unit is installed under the center console with fixed bolts.

DTC Logic

INFOID:0000000003367341

DTC DETECTION LOGIC

With CONSULT-III

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-III.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-27, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1011

B1012
B1013
B1014
B1015

CONTROL UNIT 

Air bag diagnosis sensor unit is out of 
order or mis-match

• Internal breakdown in air bag diag-

nosis sensor unit

• Mis-match between specification on 

vehicle and configuration in air bag 
diagnosis sensor unit

Revision: 2008 October

2009 Murano

B1011, B1012, B1013, B1014, B1015 DIAGNOSIS SENSOR UNIT

SRC-27

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

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SRC

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>> GO TO 2.

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.

Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-142

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000003367342

With CONSULT-III

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3

minutes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace wiring harness.

3.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit.

2.

Check the screen of CONSULT-III.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

Revision: 2008 October

2009 Murano

SRC-28

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

B1017, B1020, B1021 OCCUPANT SENS C/U

B1017, B1020, B1021 OCCUPANT SENS C/U

Description

INFOID:0000000003367343

DTC B1017, B1020, B1021 [UNIT FAIL] OCCUPANT SENS C/U

Suppresses the deployment of front passenger air bag when the condition of passenger seat is empty or child
and child-seat. And turns on front passenger air bag OFF indicator (Cut-off telltale) lamp when the condition of
passenger seat is child-seat and child. In case of malfunction the blinking of the air bag warning lamp report
the malfunction to driver and by the on board self-diagnosis system or electro-diagnosis tester CONSULT-lll
can detect the cause.

OPERATION

This unit classifies occupant in passenger seat and detects electrical malfunctions in Occupant Classification
System (OCS), and transmits malfunction information to air bag control unit.

STRUCTURE

It is integrated into the seat sensor mat and detects the occupants with Occupant Classification System (OCS)
control unit that classifies the occupants.

INSTALLATION

 Occupant Classification System (OCS) control unit is installed in the passenger seat cushion.

DTC Logic

INFOID:0000000003367344

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-lll.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-29, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1017
B1020
B1021

OCCUPANT SENS C/U 
[UNIT FAIL]

Trouble occurs in OCS-C/U

• Disconnection of wiring harness
• Internal breakdown in occupant clas-

sification system (C/U)

Revision: 2008 October

2009 Murano

B1017, B1020, B1021 OCCUPANT SENS C/U

SRC-29

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

C

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B

SRC

N

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>> GO TO 2.

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.

Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-142

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000003367345

With CONSULT-lll

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3

minutes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace wiring harness.

3.

CHECK OCCUPANT CLASSIFICATION SYSTEM (C/U)

1.

Replace occupant classification system (C/U). (front passenger side seat cushion assembly.)

2.

Check the screen of CONSULT-lll.

is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

Revision: 2008 October

2009 Murano

SRC-30

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

B1018 OCCUPANT SENS

B1018 OCCUPANT SENS

Description

INFOID:0000000003367346

DTC B1018 [UNIT FAIL] OCCUPANT SENS

Suppresses the deployment of front passenger air bag when the condition of passenger seat is empty or child
and child-seat. And turns on front passenger air bag OFF indicator (Cut-off telltale) lamp when the condition of
passenger seat is child-seat and child. In case of malfunction the blinking of the air bag warning lamp reports
the malfunction to driver and by the on board self-diagnosis system or electro-diagnosis tester CONSULT-lll
can detect the cause.

OPERATION

The unit classifies occupant in passenger seat and transmits it to Occupant Classification System (OCS) con-
trol unit.

STRUCTURE

Plural sensors are installed in the sensor mat to prevent incorrect sensing induced by the sitting position.

INSTALLATION

Seat sensor mat is installed in the passenger seat cushion.

DTC Logic

INFOID:0000000003367347

DTC DETECTION LOGIC

With CONSULT-lll

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.

CHECK SELF-DIAG RESULT

Check the screen of CONSULT-III.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-31, "Diagnosis Procedure"

.

NO

>> INSPECTION END.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1018

OCCUPANT SENS 
[UNIT FAIL]

Trouble occurs in OCS-SENS

• Disconnection of wiring harness
• Internal breakdown in occupant clas-

sification system sensor

Revision: 2008 October

2009 Murano

B1018 OCCUPANT SENS

SRC-31

< COMPONENT DIAGNOSIS >

[FOR USA AND CANADA]

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

2.

CHECK AIR BAG WARNING LAMP

Check the air bag warning lamp status.
Is malfunctioning part detected?

YES

>> Refer to warning lamp flash code chart.

SRC-142

.

NO

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000003367348

With CONSULT-lll

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3

minutes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the connection of harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace wiring harness.

3.

CHECK OCCUPANT CLASSIFICATION SYSTEM SENSOR

1.

Replace occupant classification system sensor. (front passenger side seat cushion assembly.)

2.

Check the screen of CONSULT-lll.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Check the intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

Revision: 2008 October

2009 Murano

 

 

 

 

 

 

 

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