Nissan Murano. Manual — part 1291
SRC-12
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
OCCUPANT CLASSIFICATION SYSTEM
Component Description
INFOID:0000000009718472
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
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:0000000009718473
System Description
INFOID:0000000009718474
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
SRC-14
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
PASSENGER SEAT BELT WARNING SYSTEM
Component Parts Location
INFOID:0000000009718475
Component Description
INFOID:0000000009718476
1.
Combination meter (Seat belt warn-
ing lamp)
2.
Seat belt buckle switch (Driver side) 3.
Seat belt buckle switch (Passenger
side)
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
DIAGNOSIS SYSTEM (AIRBAG)
SRC-15
< SYSTEM DESCRIPTION >
[FOR USA AND CANADA]
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DIAGNOSIS SYSTEM (AIRBAG)
Description
INFOID:0000000009718477
CAUTION:
• Never 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.
• Never 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-diagnostic results can be read with air bag warning lamp and/or CONSULT.
• 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 are as per the following items.
×
: Application, —: Not application
On Board Diagnosis Function
INFOID:0000000009718478
ON-BOARD DIAGNOSIS
There are two self diagnosis functions with air bag warning lamp as per the following items.
• USER MODE
• DIAGNOSIS MODE
METHOD OF STARTING
• User mode is a mode for ordinary use. When a malfunction of SRS air bag is detected, SRS air bag warning
lamp blinks to warn the user.
• Diagnosis mode enables malfunctioning system to be checked according to the number of blinks.
• User mode or Diagnosis mode changes from diagnosis mode when changing operation is performed.
• In user mode, when SRS air bag warning lamp is not blinking, changing to diagnosis mode by ignition switch
operation is not possible.
• In diagnosis mode, SRS air bag warning lamp may turn ON after ignition switch operation more than 7 sec-
onds, but it is possible to change the status from diagnosis mode to user mode by ignition switch operation
after 7 seconds.
• When multiple systems malfunction is detected, all of the malfunctions are displayed in Diagnosis mode.
Procedure to Change Diagnosis Mode
1.
Turn ignition switch from OFF to ON.
2.
SRS air bag lamp turns ON for 7 seconds, then turn ignition switch OFF within 2 seconds after the lamp
turns OFF.
3.
After turning ignition switch OFF, wait for 3 seconds or more.
4.
Repeat operation 1 to 3 for 2 times so that operation 1 to 3 is repeated for 3 times in total.
5.
Turn ignition switch from OFF to ON. Diagnosis mode changes.
CAUTION:
• In Diagnosis mode, if the system is normal and “PAST“ of “Self Diagnostic Result“ is indicated,
always perform “ERASE“ of “Self Diagnostic Result“ using CONSULT.
• When “ERASE“ of “Self Diagnostic Result“ is performed using CONSULT, the mode changes auto-
matically from Diagnosis mode to User mode.
USER MODE
In USER MODE, air bag warning lamp on combination meter blinks when a malfunction is detected and warns
the customer (driver).
How to Read Air Bag Warning Lamp
1.
Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
Diagnosis tool
User mode
Diagnosis mode
Air bag warning lamp
×
×
CONSULT
–
×
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