Nissan Leaf. Manual — part 1091
COMPONENT PARTS
SR-9
< SYSTEM DESCRIPTION >
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INFLATOR : Driver air bag inflator
INFOID:0000000010120244
• Driver air bag inflator (1) mainly consists of electric ignition device
(squib), igniting agent, gas generating agent, and filter. These
items are stored in a container.
• In a frontal collision which exceeds the specified limit of the vehi-
cle, electric ignition device (squib) ignites igniting agent. Gas gen-
erating agent burns due to heat from igniting agent. Generated gas
(high temperature) inflates air bag through filter.
NOTE:
Filter removes and cools residues of gas generating agent.
CROSS-SECTION OF DRIVER AIR BAG INFLATOR
INFLATOR : Passenger air bag inflator
INFOID:0000000010120245
• Passenger air bag inflator (1) mainly consists of electric ignition
device (squib), igniting agent, gas generating agent, and filter.
These items are stored in a container.
• In a frontal collision which exceeds the specified limit of the vehi-
cle, electric ignition device (squib) ignites igniting agent. Gas gen-
erating agent burns due to heat from igniting agent. Generated gas
(high temperature) inflates air bag through filter.
NOTE:
Filter removes and cools residues of gas generating agent.
CROSS-SECTION OF PASSENGER AIR BAG INFLATOR
JMHIA2205ZZ
1
: Filter
2
: Gas generating agent
3
: Igniting agent
4
: Electric ignition device (squib)
5
: Cushion
6
: Flame
7
: Generated gas
JMHIA0161ZZ
JMHIA2206ZZ
1
: Filter
2
: Gas generating agent
3
: Igniting agent
4
: Electric ignition device (squib)
5
: Cushion
6
: Flame
7
: Generated gas
NNHIA0035ZZ
SR-10
< SYSTEM DESCRIPTION >
COMPONENT PARTS
INFLATOR : Side air bag inflator
INFOID:0000000010120246
Side air bag inflator (1) mainly consists of electric ignition device
(squib), heating agent, compressed gas, filter, and diffuser. These
items are stored in a cylinder-type container.
CROSS-SECTION OF SIDE AIR BAG INFLATOR
In a frontal collision which exceeds the specified limit of the vehicle, electric ignition device (squib) ignites and
burns heating agent. Compressed gas breaks burst disc A, inflates gas in compressed gas chamber, breaks
burst disc B, and then inflates air bag through filter and diffuser.
INFLATOR : Curtain air bag inflator
INFOID:0000000010120247
Curtain air bag inflator mainly consists of electric ignition device
(squib), heating agent, compressed gas, and diffuser. These items
are stored in a cylinder-type container.
CROSS-SECTION OF CURTAIN AIR BAG INFLATOR
JMHIA1600ZZ
PHIA0571J
1.
Burst disc B
2.
Compressed gas
3.
Heating agent (propellant)
4.
Electric ignition device (squib)
5.
Burst disc A
6.
Filter
7.
Diffuser
1
: Curtain air bag inflator
2
: Curtain air bag
: Vehicle front
JMHIA2003ZZ
PHIA0572J
COMPONENT PARTS
SR-11
< SYSTEM DESCRIPTION >
C
D
E
F
G
I
J
K
L
M
A
B
SR
N
O
P
In a frontal collision which exceeds the specified limit of the vehicle, electric ignition device (squib) ignites and
burns heating agent. Burned gas breaks burst disc A, inflates gas in compressed gas chamber, breaks burst
disc B, and then inflates air bag through filter and diffuser.
MAIN COMPONENT PARTS AND FUNCTIONS
MAIN COMPONENT PARTS AND FUNCTIONS : Spiral cable
INFOID:0000000010120248
• Spiral cable electrically connects air bag diagnosis sensor unit and
driver air bag module. Spiral cable mainly consists of the rotating
portion (A) which performs the same movement as steering wheel,
the fixed case (B) which is installed on steering wheel, and the
cable which connects the rotating portion.
• Spiral cable is built into steering angle sensor which is installed to
a space between combination switch and steering wheel.
MAIN COMPONENT PARTS AND FUNCTIONS : Crash zone sensor
INFOID:0000000010120249
• Crush zone sensor (1) is installed to charge port lid hinge assem-
bly. Crash zone sensor integrates frontal collision “G” sensor which
detects frontal collision impact that exceeds the specified limit of
the vehicle.
• In a frontal collision that exceeds the specified limit of the vehicle,
crush zone sensor detects impact. If frontal collision safing sensor
in air bag diagnosis sensor unit judges that impact is due to a colli-
sion, driver air bag, passenger air bag and front pre-tensioner seat
belt operate.
MAIN COMPONENT PARTS AND FUNCTIONS : Satellite sensor
INFOID:0000000010120250
FRONT SATELLITE SENSOR
• Front door satellite sensor (1) is installed to front door panel front
side.
• Front door satellite sensor integrates lateral collision “G” sensor
which detects lateral collision impact that exceeds the specified
limit of the vehicle. (Lateral collision “G” sensor adopts electronic
sensor of which operating principles are the same as those of fron-
tal collision “G” sensor in air bag diagnosis sensor unit.)
• In a lateral collision that exceeds the specified limit of the vehicle,
front door satellite sensor detects impact. If lateral collision safing
sensor in air bag diagnosis sensor unit judges that impact is due to
a collision, side air bag and curtain air bag operate.
REAR SATELLITE SENSOR
1.
Burst disk
2.
Compressed gas
3.
Heating agent (propellant)
4.
Electric ignition device (squib)
5.
Burst disk A
6.
Diffuser
NNHIA0038ZZ
: Vehicle front
JMHIA2004ZZ
: Vehicle front
JMHIA2204ZZ
SR-12
< SYSTEM DESCRIPTION >
COMPONENT PARTS
• Rear satellite sensor (1) in installed to center pillar lower portion of
front seat belt retractor rear side.
• Rear satellite sensor integrates lateral collision “G” sensor which
detects lateral collision impact that exceeds the specified limit of
the vehicle. (Lateral collision “G” sensor adopts electronic sensor
of which operating principles are the same as those of frontal colli-
sion “G” sensor in air bag diagnosis sensor unit.)
• In a lateral collision that exceeds the specified limit of the vehicle,
rear satellite sensor detects impact. If lateral collision safing sensor
in air bag diagnosis sensor unit judges that impact is due to a colli-
sion, side air bag and curtain air bag operate.
MAIN COMPONENT PARTS AND FUNCTIONS : Air bag diagnosis sensor unit
INFOID:0000000010120251
• Air bag diagnosis sensor unit (1) is installed to front seat center
portion (under center console). Air bag diagnosis sensor unit inte-
grates control functions of driver air bag, passenger air bag, side
air bag, curtain air bag, and pre-tensioner seat belt.
• Air bag diagnosis sensor unit integrates frontal collision “G” sensor,
frontal collision safing sensor, and lateral collision safing sensor
(only for models with curtain air bag).
• Air bag diagnosis sensor unit has a function that judges impact due
to frontal and lateral collisions exceeding the specified limit of the
vehicle. Air bag diagnosis sensor unit also has an auxiliary power
supply function that supplements 12 V battery power supply in the event battery is damaged in a collision.
• Air bag diagnosis sensor unit diagnoses electric system of entire system. Self-diagnosis function is adopted,
which indicates system malfunction by blinking or turning ON air bag warning lamp on combination meter
when a malfunction is detected. Diagnosis using CONSULT is possible.
MAIN COMPONENT PARTS AND FUNCTIONS : Air bag warning lamp
INFOID:0000000010120252
• Air bag warning lamp blinks or turns ON indicating a system mal-
function when a malfunction is detected for electric system of SRS
air bag system and pre-tensioner seat belt system.
• For operation check purposes, air bag warning lamp turns ON for 7
seconds after power switch is turned ON. During this period of
time, air bag diagnosis sensor unit performs system diagnosis.
• Air bag warning lamp indicates self-diagnosis result according to
the number of times it blinks. (in diagnosis mode)
NOTE:
SRS air bag and pre-tensioner seat belt do not operate for approx-
imately 7 seconds (air bag warning lamp is blinking or turning ON)
after power switch is turned ON.
: Vehicle front
JMHIA2005ZZ
: Vehicle front
JMHIA2006ZZ
BF-1845D
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