Nissan Murano Z51 (2013 year). Manual — part 72
DIAGNOSIS SENSOR UNIT
SR-53
< REMOVAL AND INSTALLATION >
[FOR MEXICO]
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DIAGNOSIS SENSOR UNIT
Exploded View
INFOID:0000000008457600
Removal and Installation
INFOID:0000000008457601
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait 3 minutes
or more.
• Before disconnecting the air bag sensor unit harness connector, be sure to disconnect the each har-
ness connector of the air bag module and pre-tensioner seat belt to prevent air bag deployment by
static electricity and pre-tensioner seat belt operation.
• Never use the air tools or electric tools for servicing.
• When replacing the air bag diagnosis sensor unit, always check with the parts department for the lat-
est parts information. Installing an incorrect air bag diagnosis sensor unit may or may not cause the
air bag warning lamp to illuminate and may cause incorrect deployment of the supplemental air bags
and seat belt pre-tensioners in a collision resulting in serious personal injury or death.
REMOVAL
1.
Always check the air bag diagnosis sensor unit ECU discriminated number (identification number) using
CONSULT.
2.
Disconnect the each connector of all air bag modules and pre-tensioner seat belts.
3.
Remove the instrument lower cover (LH and RH). Refer to
.
4.
Remove the rear foot duct 1 (LH and RH). Refer to
VTL-125, "REAR FOOT DUCT 1 : Exploded View"
.
5.
Remove the instrument stay LH. Refer to
6.
Remove the front console bracket. Refer to
7.
Disconnect the diagnosis sensor unit harness connectors.
8.
Remove the fixing bolts, ground bolt, and then remove the diagnosis sensor unit.
CAUTION:
1.
Diagnosis sensor unit
A.
Diagnosis sensor unit harness connector
B.
Ground bolt
: Do not reuse
: N·m (kg-m, ft-lb)
JMHIA0517GB
Revision: 2012 September
2013 MURANO
SR-54
< REMOVAL AND INSTALLATION >
[FOR MEXICO]
DIAGNOSIS SENSOR UNIT
• Replace the diagnosis sensor unit if it has been dropped or
sustained an impact.
• Replace the diagnosis sensor unit of deployed SRS air bag and deployed SRS front seat belt pre-ten-
sioner.
INSTALLATION
Install air bag diagnosis sensor unit in the reverse order of removal.
CAUTION:
• Never use the old fixing bolts after removal, replace with the new fixing bolts.
• If malfunction is detected by the air bag warning lamp, after repair or replacement of the malfunc-
tioning parts, reset the memory using self-diagnosis or CONSULT. Refer to
• After the work is completed, check that no system malfunction is detected by air bag warning lamp.
• After replacing the air bag diagnosis sensor unit, confirm using CONSULT that the ECU discrimi-
nated number (identification number) of the new replacement air bag sensor unit matches the ECU
discriminated number (identification number) of the replaced (old) air bag diagnosis sensor unit.
NOTE:
If the ECU discriminated number of the new replacement air bag diagnosis sensor unit differs from the ECU
discriminated number of the replaced air bag diagnosis sensor unit, reconfirm the parts information and verify
that the correct air bag diagnosis sensor unit was installed.
JMHIA0009ZZ
Revision: 2012 September
2013 MURANO
FRONT SEAT BELT PRE-TENSIONER
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< REMOVAL AND INSTALLATION >
[FOR MEXICO]
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FRONT SEAT BELT PRE-TENSIONER
Removal and Installation
INFOID:0000000008457602
For removal and installation procedures, refer to
SB-7, "SEAT BELT RETRACTOR : Removal and Installa-
.
Revision: 2012 September
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SRC-1
RESTRAINTS
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SECTION
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CONTENTS
SRS AIRBAG CONTROL SYSTEM
FOR USA AND CANADA
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORK FLOW . . .
Work Flow . . . . . . . . . . . . . . . .....
SYSTEM DESCRIPTION . . . . . . . ..
SRS AIR BAG SYSTEM . . . . . . . . . ..
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
OCCUPANT CLASSIFICATION SYSTEM . . .
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . .
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
PASSENGER SEAT BELT WARNING SYS-
TEM . . . . . . . . . . . . . . . . .
System Diagram . . . . . . . . . . . . . ..
System Description . . . . . . . . . . . . .
Component Parts Location . . . . . . . . . ..
Component Description . . . . . . . . . . ...
DIAGNOSIS SYSTEM (AIRBAG) . . . . . ..
Description . . . . . . . . . . . . . . . ..
On Board Diagnosis Function . . . . . . . . .
CONSULT Function . . . . . . . . . . . .
DTC/CIRCUIT DIAGNOSIS . . . . . . .
U1000 CAN COMM CIRCUIT . . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
U1010 CONTROL UNIT (CAN) . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
B0001 DRIVER AIR BAG MODULE . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0002 DRIVER AIR BAG MODULE . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0010 PASSENGER AIR BAG MODULE . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0011 PASSENGER AIR BAG MODULE . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0020 SIDE AIR BAG MODULE . . . . . ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0021 CURTAIN AIR BAG MODULE . . . ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0028 SIDE AIR BAG MODULE . . . . . ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0029 CURTAIN AIR BAG MODULE . . . ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0091 SATELLITE SENSOR . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0094 CRASH ZONE SENSOR . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
B0096 SATELLITE SENSOR . . . . . . ...
Revision: 2012 September
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SRC-2
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B0099 SATELLITE SENSOR . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B00A0 OCCUPANT CLASSIFICATION SYS-
TEM CONTROL UNIT . . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B00D5 FRONT PASSENGER AIR BAG OFF
INDICATOR . . . . . . . . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1400, B1401, B1402, B1403, B1404, B1405
AIR BAG DIAGNOSIS SENSOR UNIT . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1406, B1407, B1408, B1409, B1410 AIR
BAG DIAGNOSIS SENSOR UNIT . . . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1411, B1412, B1413, B1414, B1415 AIR
BAG DIAGNOSIS SENSOR UNIT . . . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1416, B1417, B1418, B1419, B1420 AIR
BAG DIAGNOSIS SENSOR UNIT . . . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1421 FRONTAL COLLISION DETECTION .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1422 SIDE COLLISION DETECTION . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1423 ROLLOVER DETECTION . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1425 REAR COLLISION DETECTION . . ...
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B142A IGN VOLTAGE . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1430 SEAT BELT PRE-TENSIONER . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ..
B1431 SEAT BELT PRE-TENSIONER . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
ECU DIAGNOSIS INFORMATION . . . .
DIAGNOSIS SENSOR UNIT . . . . . . . .
DTC Index . . . . . . . . . . . . . . . ..
Wiring Diagram — SRS AIR BAG CONTROL
SYSTEM — . . . . . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . .
SRS AIR BAG WARNING LAMP DOES NOT
TURN OFF . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
SRS AIR BAG WARNING LAMP DOES NOT
TURN ON . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
PASSENGER SEAT BELT WARNING SYS-
TEM . . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . . .
Service . . . . . . . . . . . . . . . . .
Occupant Classification System Precaution . . .
FOR MEXICO
BASIC INSPECTION . . . . . . . . ..
DIAGNOSIS AND REPAIR WORK FLOW . .
Work Flow . . . . . . . . . . . . . . . ...
SYSTEM DESCRIPTION . . . . . . ...
SRS AIR BAG SYSTEM . . . . . . . . .
System Diagram . . . . . . . . . . . . . .
System Description . . . . . . . . . . . . .
Component Parts Location . . . . . . . . . .
Component Description . . . . . . . . . . ..
DIAGNOSIS SYSTEM (AIRBAG) . . . . . ..
Description . . . . . . . . . . . . . . . ..
On Board Diagnosis Function . . . . . . . . .
CONSULT Function . . . . . . . . . . . .
DTC/CIRCUIT DIAGNOSIS . . . . . .
U1000 CAN COMM CIRCUIT . . . . . . .
Description . . . . . . . . . . . . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
U1010 CONTROL UNIT (CAN) . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
Revision: 2012 September
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B0001 DRIVER AIR BAG MODULE . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
B0002 DRIVER AIR BAG MODULE . . . . ..
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
B0010 PASSENGER AIR BAG MODULE . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
B0011 PASSENGER AIR BAG MODULE . . .
DTC Logic . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . .
B0020 SIDE AIR BAG MODULE . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0021 CURTAIN AIR BAG MODULE . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0028 SIDE AIR BAG MODULE . . . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0029 CURTAIN AIR BAG MODULE . . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0091 SATELLITE SENSOR . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0094 CRASH ZONE SENSOR . . . . . ..
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0096 SATELLITE SENSOR . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B0099 SATELLITE SENSOR . . . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B1400, B1401, B1402, B1403, B1404, B1405
AIR BAG DIAGNOSIS SENSOR UNIT . . .
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B1406, B1407, B1408, B1409, B1410 AIR
BAG DIAGNOSIS SENSOR UNIT . . . . ...
DTC Logic . . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B1411, B1412, B1413, B1414, B1415 AIR
BAG DIAGNOSIS SENSOR UNIT . . . . ...
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1416, B1417, B1418, B1419, B1420 AIR
BAG DIAGNOSIS SENSOR UNIT . . . . ..
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1421 FRONTAL COLLISION DETECTION ..
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1422 SIDE COLLISION DETECTION . . ..
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1423 ROLLOVER DETECTION . . . . ...
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1425 REAR COLLISION DETECTION . . .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B142A IGN VOLTAGE . . . . . . . . .
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1430 SEAT BELT PRE-TENSIONER . . ...
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
B1431 SEAT BELT PRE-TENSIONER . . ...
DTC Logic . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
ECU DIAGNOSIS INFORMATION . . .
DIAGNOSIS SENSOR UNIT . . . . . . ...
DTC Index . . . . . . . . . . . . . . . .
Wiring Diagram — SRS AIR BAG CONTROL
SYSTEM — . . . . . . . . . . . . . . ...
SYMPTOM DIAGNOSIS . . . . . . .
SRS AIR BAG WARNING LAMP DOES NOT
TURN OFF . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . .
SRS AIR BAG WARNING LAMP DOES NOT
TURN ON . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . ...
Service . . . . . . . . . . . . . . . . ...
Revision: 2012 September
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SRC-4
< BASIC INSPECTION >
[FOR USA AND CANADA]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000008454539
OVERALL SEQUENCE
DETAILED FLOW
JMHIA1324GB
Revision: 2012 September
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DIAGNOSIS AND REPAIR WORK FLOW
SRC-5
< BASIC INSPECTION >
[FOR USA AND CANADA]
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INTERVIEW THE CUSTOMER FOR THE SYMPTOM
Interview the customer for the symptom (the condition and the environment when the incident/malfunction
occurs).
>> GO TO 2.
2.
CHECK SYMPTOM
Check the symptom from the customer information.
>> GO TO 3.
3.
CHECK WARNING LAMP OPERATION
Check air bag warning lamp operation in the user mode. Refer to
SRC-15, "On Board Diagnosis Function"
Are any malfunction detected?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK LOW VOLTAGE
Check low voltage. Refer to
Are any malfunction detected?
YES
>> GO TO 9.
NO
>> Check intermittent incident. Refer to
GI-45, "Intermittent Incident"
.
5.
CHECK SELF DIAGNOSTIC RESULTS
Check self diagnostic result with CONSULT or diagnosis mode.
If it is impossible to switch to diagnosis mode, follow the same procedure that DTC is not detected.
NOTE:
Perform the following procedure if DTC is detected.
• Record DTC (Print them out with CONSULT.)
• Erase self diagnostic result.
• Study the relationship between the malfunction that DTC or air bag warning lamp indicates and the symptom
that the customer describes.
• Check related service bulletins for information.
Is DTC detected?
YES
>> GO TO 6.
NO
>> GO TO 7.
6.
PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the DTC.
>> GO TO 8.
7.
PERFORM DIAGNOSIS ACCORDING TO WARNING LAMP OPERATION
1.
Check air bag warning lamp operation in the user mode. Refer to
SRC-15, "On Board Diagnosis Func-
2.
Perform Diagnosis Procedure for the air bag warning lamp operation. Refer to
(USER MODE).
>> GO TO 9.
8.
DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the DTC.
>> GO TO 9.
9.
REPAIR OR REPLACE THE MALFUNCTION PART
Revision: 2012 September
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SRC-6
< BASIC INSPECTION >
[FOR USA AND CANADA]
DIAGNOSIS AND REPAIR WORK FLOW
Repair or replace the malfunctioning part.
>> GO TO 10.
10.
FINAL CHECK
Check self diagnostic result and air bag warning lamp operation in the user mode.
Is the malfunction repaired?
YES
>> INSPECTION END
NO
>> GO TO 2.
Revision: 2012 September
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SRS AIR BAG SYSTEM
SRC-7
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
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SYSTEM DESCRIPTION
SRS AIR BAG SYSTEM
System Diagram
INFOID:0000000008454540
System Description
INFOID:0000000008454541
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 diagnosis sensor unit supplies power supply to air bag module and pre-tensioner seat belt when decel-
eration that is more than the specified limit is detected by G sensor in air bag diagnosis sensor unit, crash
zone sensor, or satellite sensor. Air bag module is composed of electric igniter (squib), filter, pyrotechnic mate-
rial, and gas generating material. When air bag module receives a signal from air bag diagnosis sensor unit,
air bag module ignites pyrotechnic material using electric igniter (squib) so that gas generating material gener-
ates high temperature 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.
JMHIA1410GB
Revision: 2012 September
2013 MURANO
SRC-8
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
SRS AIR BAG SYSTEM
• Indicates malfunctioning portion with blinking times of air bag warning lamp in diagnosis mode.
• Indicates the malfunction record via CONSULT.
• 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
.
COLLISION MODE
• The operation of supplemental restraint system is different depending on the collision modes applications.
For example, the driver air bag module, front passenger air bag module and front seat belt pre-tensioner are
activated in a frontal collision but not in a side collision.
• SRS configurations that are activated for some collision modes are as per the following.
×
: Apply
—: Not apply
SRS configuration
Frontal collision
Rear collision
Left side colli-
sion
Right side colli-
sion
Roll over
Driver air bag module
×
—
—
—
—
Front passenger air bag module
×
—
—
—
—
Front LH seat belt pre-tensioner
×
—
—
—
×
Front RH seat belt pre-tensioner
×
—
—
—
×
Front LH side air bag module
—
—
×
—
—
Front RH side air bag module
—
—
—
×
—
LH side curtain air bag module
—
—
×
—
×
RH side curtain air bag module
—
—
—
×
×
Collision detection output func-
tion
×
×
×
×
×
Revision: 2012 September
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SRS AIR BAG SYSTEM
SRC-9
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
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Component Parts Location
INFOID:0000000008454542
Component Description
INFOID:0000000008454543
1.
Front passenger air bag module
2.
Driver air bag module
3.
Combination switch (Spiral cable)
4.
Front passenger air bag OFF indica-
tor
5.
Air bag diagnosis sensor unit
6.
Satellite sensor (LH/RH)
7.
Front seat belt pre-tensioner (LH/
RH)
8.
Seat belt buckle switch (Driver side/
Passenger side)
9.
Front side air bag module (LH/RH)
10. Side curtain air bag module
11.
Crash zone sensor
12. Occupant Classification System seat
sensor mat
13. Occupant Classification System con-
trol unit
JMHIA0493ZZ
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.
Revision: 2012 September
2013 MURANO
SRC-10
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
SRS AIR BAG SYSTEM
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.
Component
Function
Revision: 2012 September
2013 MURANO
OCCUPANT CLASSIFICATION SYSTEM
SRC-11
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
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OCCUPANT CLASSIFICATION SYSTEM
System Diagram
INFOID:0000000008454544
OCCUPANT CLASSIFICATION SYSTEM
System Description
INFOID:0000000008454545
This Occupant Classification System (OCS) has the following function.
1.
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.
2.
Indicates malfunction portion with blinking times of air bag warning lamp in diagnosis mode.
3.
Indicates the malfunctioning record by CONSULT.
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:0000000008454546
JMHIA0496GB
Status (front passenger
seat)
Passenger air bag
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
Off
Off
Child/ child-seat
Suppress
On
Off
On
Adult
Enable to deploy
Off
Off
On
Malfunction
Suppress
On
Blinking
Off
JMHIA0494ZZ
Revision: 2012 September
2013 MURANO
SRC-12
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
OCCUPANT CLASSIFICATION SYSTEM
Component Description
INFOID:0000000008454547
1.
Occupant classification system con-
trol unit
2.
Occupant classification system seat
sensor mat
3.
Front passenger air bag OFF indica-
tor
A.
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: 2012 September
2013 MURANO
PASSENGER SEAT BELT WARNING SYSTEM
SRC-13
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
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PASSENGER SEAT BELT WARNING SYSTEM
System Diagram
INFOID:0000000008454548
System Description
INFOID:0000000008454549
This Passenger Seat Belt Warning System has the following function.
Turns ON seat belt warning lamp, when the Occupant Classification System judges adult or child in the front
passenger seat and the passenger seat belt buckle switch is OFF.
NOTE:
In addition, seat belt warning lamp illuminates, when the driver side seat belt is not fasten. This does not relate
to the air bag diagnosis sensor unit.
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: 2012 September
2013 MURANO
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