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 

SRC-

11, "SRS AIR BAG SYSTEM : System Description"

 for more informa-

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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< 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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