Nissan GT-R. Manual — part 260
SBC-1
RESTRAINTS
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D
E
F
G
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J
K
L
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SECTION
SBC
A
B
SBC
N
O
P
CONTENTS
SEAT BELT CONTROL SYSTEM
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORK FLOW . . .
Work Flow . . . . . . . . . . . . . . . .....
SYSTEM DESCRIPTION . . . . . . . ..
SEAT BELT WARNING SYSTEM . . . . . ...
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
DTC/CIRCUIT DIAGNOSIS . . . . . . ..
SEAT BELT BUCKLE SWITCH . . . . . . ..
DRIVER SIDE . . . . . . . . . . . . . . . ..
DRIVER SIDE : Description . . . . . . . . . ..
DRIVER SIDE : Component Function Check . . ....
DRIVER SIDE : Diagnosis Procedure . . . . . ...
DRIVER SIDE : Component Inspection (Belt
Buckle Switch) . . . . . . . . . . . . . . ...
PASSENGER SIDE . . . . . . . . . . . . .....
PASSENGER SIDE : Description . . . . . . .....
PASSENGER SIDE : Component Function Check
. ..
PASSENGER SIDE : Diagnosis Procedure . . . ..
PASSENGER SIDE : Component Inspection (Belt
Buckle Switch) . . . . . . . . . . . . . . ..
SEAT BELT WARNING LAMP . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ....
SEAT BELT WARNING SYSTEM . . . . .
Wiring Diagram - SEAT BELT WARNING SYS-
TEM - . . . . . . . . . . . . . . . . . ...
ECU DIAGNOSIS INFORMATION . . . ..
DIAGNOSIS SENSOR UNIT . . . . . . . .
Wiring Diagram - SRS AIR BAG CONTROL SYS-
TEM - . . . . . . . . . . . . . . . . . ...
SYMPTOM DIAGNOSIS . . . . . . . ..
SEAT BELT WARNING LAMP DOES NOT
TURN OFF . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . . ..
PRECAUTIONS . . . . . . . . . . . . .
Precaution for Seat Belt Service . . . . . . . ..
SBC-2
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000009161807
DETAILED FLOW
1.
OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much malfunction information (conditions and environment when the mal-
function occurred) as possible when the customer brings the vehicle in.
>> GO TO 2.
2.
REPRODUCE THE MALFUNCTION INFORMATION
Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.
>> GO TO 3.
3.
IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”
Use “Symptom diagnosis” from the symptom inspection result in step 2 and then identify where to start per-
forming the diagnosis based on possible causes and symptoms.
>> GO TO 4.
4.
IDENTIFY THE MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”
Perform the diagnosis with “Component diagnosis” of the applicable system.
>> GO TO 5.
5.
REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 6.
6.
FINAL CHECK
Check that the malfunction is not reproduced, referring to the symptom inspection result in step 2.
Are the malfunctions corrected?
YES
>> INSPECTION END
NO
>> GO TO 3.
SEAT BELT WARNING SYSTEM
SBC-3
< SYSTEM DESCRIPTION >
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D
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F
G
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A
B
SBC
N
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SYSTEM DESCRIPTION
SEAT BELT WARNING SYSTEM
System Diagram
INFOID:0000000009161808
System Description
INFOID:0000000009161809
• 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.
• Operation of air bag diagnosis sensor unit when air bag diagnosis sensor unit receives information from
Occupant Classification System.
• 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.
• For driver seat belt function, refer to
MWI-3, "METER SYSTEM : System Diagram"
JMHIA0794GB
Status (front passenger seat)
Seat belt warning lamp (When front passenger seat is unbuck-
led)
Empty
OFF
An object
OFF
Child/ child-seat
ON
Adult
ON
Malfunction
OFF
SBC-4
< SYSTEM DESCRIPTION >
SEAT BELT WARNING SYSTEM
Component Parts Location
INFOID:0000000009161810
Component Description
INFOID:0000000009161811
1.
Combination meter (Seat belt warn-
ing lamp)
2.
Seat belt buckle switch (Driver side)
3.
Seat belt buckle switch (Passenger
side)
4.
Air bag diagnosis sensor unit
5.
Occupant Classification System con-
trol unit
6.
Occupant Classification System seat
sensor
7.
Front passenger air bag OFF indica-
tor
A.
View with rear console assembly re-
moved
B.
Front passenger seat
JMHIA0795ZZ
Component parts
Outline of function
Seat belt buckle switch (Driver side)
Detects if the seat belt buckle switch (driver side) is fastened or unfastened
Seat belt buckle switch (Passenger side)
Detects if the seat belt buckle switch (passenger side) is fastened or unfastened
Seat belt warning lamp
Turns the seat belt warning lamp ON when the seat belt is unfastened
Occupant Classification System control unit
Judges the passenger seat condition based on the information from Occupant Classi-
fication System control unit
Occupant Classification System seat sensor
Detects if the passenger seat is empty or occupied
Air bag diagnosis sensor unit
Turns ON seat belt warning lamp based on the information from Occupant Classifica-
tion System control unit
Front passenger air bag OFF indicator
Turns the front passenger air bag OFF indicator lamp ON when the front passenger
seat is occupied by a child or a child seat
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