Nissan Sentra. Manual — part 793
COMPONENT PARTS
SRC-7
< SYSTEM DESCRIPTION >
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Driver Air Bag Module
INFOID:0000000009757914
The driver air bag module is dual stage and located in the steering
wheel assembly. It operates with the SRS system in a frontal colli-
sion exceeding a specified level.
Front Passenger Air Bag Module
INFOID:0000000009757915
The front passenger air bag module is dual stage and is located
behind the instrument panel assembly. It operates with the SRS sys-
tem in a frontal collision exceeding a specified level. Refer to
11, "SRS AIR BAG SYSTEM : System Description"
tion.
Front Side Air Bag Module
INFOID:0000000009757916
Front side air bag modules are built into the front seatback assem-
blies. Vehicles with side air bags are equipped with labels as shown.
Side Curtain Air Bag Module
INFOID:0000000009757917
Side curtain air bag modules are located above the vehicle headlining.
Vehicles with side curtain air bags are equipped with labels on the
pillar upper finishers.
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SRC-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Front Seat Belt Pre-tensioner
INFOID:0000000009757918
The seat belt pre-tensioner system with load limiter is installed for
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the shoulder belt pre-tensioner (1) as well
as the lap belt pre-tensioner (2). Vehicle passengers are securely
restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt web tension while maintaining force.
Air Bag Diagnosis Sensor Unit
INFOID:0000000009757919
The air bag diagnosis sensor unit is located under the center con-
sole assembly. The air bag diagnosis sensor unit receives signals
from multiple SRS sensors and controls the deployment of the air
bags. The deployment of the air bags depends on the type and
severity of the collision. The air bag diagnosis sensor unit has self-
diagnosis capability through the use of the CONSULT as well as
flash codes displayed by the air bag warning lamp.
Crash Zone Sensor
INFOID:0000000009757920
The crash zone sensor is located infront of the radiator. The crash
zone sensor sends signals to the air bag diagnosis sensor unit dur-
ing a frontal collision. This sensor may be identified by a yellow con-
nector.
Front Side Air Bag Satellite Sensor
INFOID:0000000009757921
The front side air bag satellite sensors are located on the front center
pillar LH and RH next to the seat belt pretensioners. The front side
air bag satellite sensors send signals to the air bag diagnosis sensor
unit during a side collision. These sensors may be identified by yel-
low connectors.
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COMPONENT PARTS
SRC-9
< SYSTEM DESCRIPTION >
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Rear Side Air Bag Satellite Sensor
INFOID:0000000009757922
The rear side air bag satellite sensors are located behind the dash
side lower finisher LH and RH. The rear side air bag satellite sensors
send signals to the air bag diagnosis sensor unit during a side colli-
sion. These sensors may be identified by yellow connectors.
Front Door Satellite Sensor
INFOID:0000000009757923
The front door satellite sensors are located in the driver and passen-
ger doors. The sensors detect sudden pressure changes inside the
door cavity and then send signals to the air bag diagnosis sensor
unit during a side collision. These sensors may be identified by yel-
low connectors.
SRS Component Connectors
INFOID:0000000009757924
DIRECT CONNECT
The following SRS components use direct-connect style harness connectors.
• Driver front air bag module
• Passenger front air bag module
• LH side curtain air bag module
• RH side curtain air bag module
• Front LH seat belt pre-tensioner
• Front RH seat belt pre-tensioner
Always pull up to release locking tab prior to removing connector from SRS component.
Always push down to lock locking tab after installing connector to
SRS component. When locked, the locking tab is level with the con-
nector housing.
SLIDE DOUBLE LOCKING
• A new style slide double locking type connector is used on certain systems and components, especially
those related to airbag control systems.
• The slide double locking type connectors help prevent incomplete locking and accidental looseness or dis-
connection.
• The slide double locking type connectors are disconnected by pushing or pulling the slider. Refer to the fig-
ure below.
CAUTION:
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SRC-10
< SYSTEM DESCRIPTION >
COMPONENT PARTS
• Do not pull the harness or wires when disconnecting the connector.
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