Nissan Versa (N17): Component parts

Component Parts Location

1. Crash zone sensor 2. Front door satellite sensor LH 3. Spiral cable 4. Front passenger air bag off indicator 5. Front LH seatbelt pre-tensioner Side air bag satellite sensor LH 6. Air bag diagnosis sensor unit 7. Front LH side air bag module 8. Seat belt buckle switch (LH) Seat belt buckle switch (RH) 9. Occupant classification system control unit and sensors 10. Front RH seatbelt pre-tensioner Side air bag satellite sensor RH 11. Front RH side air bag module 12. RH side curtain air bag module 13. Front door satellite sensor RH 14. LH side curtain air bag module 15. Front passenger air bag module 16. Driver air bag module

Component Description

Component	Function
Air bag diagnosis sensor unit	Refer to SRC "Air Bag Diagnosis Sensor Unit".
Driver air bag module	Refer to SRC "Driver Air Bag Module".
Front passenger air bag module	Refer to SRC "Front Passenger Air Bag Module".
Front side air bag module	Refer to SRC "Front Side Air Bag Module".
Side curtain air bag module	Refer to SRC "Side Curtain Air Bag Module".
Front seat belt pre-tensioner	Refer to SRC "Front Seat Belt Pre-tensioner".
Occupant classification system	Refer to SRC "OCCUPANT CLASSIFICATION SYSTEM : System Description".
Crash zone sensor	Refer to SRC "Crash Zone Sensor".
Side air bag (satellite) sensor	Refer to SRC "Side Air Bag Satellite Sensor".
Front door (satellite) sensor	Refer to SRC "Door Satellite Sensor".
Seat belt buckle switch	The seat belt buckle switches (LH/RH) provide the seat belt buckle signals to the air bag diagnosis sensor unit and the combination meter.
Spiral cable	The spiral cable provides a rotating physical connection to the driver air bag module.
Combination meter	The combination meter displays the air bag warning lamp and the seat belt warning lamp. The air bag warning lamp is used for diagnosis in User Mode and may be used to display diagnostic trouble codes without the use of the CONSULT.

Driver Air Bag Module

The driver air bag module is dual stage and located in the steering wheel assembly. It operates with the SRS system in a frontal collision exceeding a specified level.

Front Passenger Air Bag Module

The front passenger air bag module is located behind the instrument panel assembly. It operates with the SRS system in a frontal collision exceeding a specified level. Refer to SRC "OCCUPANT CLASSIFICATION SYSTEM : System Description" for more information.

Front Side Air Bag Module

Front side air bag modules are built into the front seatback assemblies.

Vehicles with side air bags are equipped with labels as shown.

Side Curtain Air Bag Module

Side curtain air bag modules are located above the vehicle headlining.

Vehicles with side curtain air bags are equipped with labels on the center pillar upper finisher as shown.

Front Seat Belt Pre-tensioner

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 pre-tensioner. 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

The air bag diagnosis sensor unit is located under the center console.

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

The crash zone sensor is located behind the front grille in front of the radiator support. The crash zone sensor sends signals to the air bag diagnosis sensor unit during a frontal collision. This sensor may be identified by a yellow connector.

Side Air Bag Satellite Sensor

The side air bag satellite sensors are located on the center pillar LH and RH next to the seat belt pretensioners. The side air bag satellite sensors send signals to the air bag diagnosis sensor unit during a side collision. These sensors may be identified by yellow connectors.

Door Satellite Sensor

The front door satellite sensors are located in the driver and passenger doors. The front door satellite sensors send signals to the air bag diagnosis sensor unit during a side collision. These sensors may be identified by yellow connectors.

SRS Component Connectors

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 connector 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 disconnection.
• The slide double locking type connectors are disconnected by pushing or pulling the slider. Refer to the figure below.

CAUTION: Do not pull the harness or wires when disconnecting the connector.

SYSTEM