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Home >> Nissan-Datsun >> 2009 >> Sentra L4-2.0L (MR20DE) >> Repair and Diagnosis >> Restraints and Safety Systems >> Air Bag Systems >> Air Bag >> Service and Repair >> Front Passenger Air Bag Module

Front Passenger Air Bag Module





FRONT PASSENGER AIR BAG MODULE


Removal and Installation

The passenger air bag module originally installed in the vehicle uses direct-connect style harness connectors.
Service replacement passenger air bag modules use tab-locking style harness connectors. If the passenger air bag module is replaced or if the direct-connect harness connectors are damaged, the vehicle wiring harness must be modified to allow connection of the service replacement passenger air bag module. Follow the WIRING HARNESS MODIFICATION procedure for wiring harness modification.

REMOVAL

WARNING:
- When servicing the SRS, do not work from directly in front of air bag module. Always work from the side of or under front passenger air bag module.
- Always place front passenger air bag module with pad side facing upward.

CAUTION:
- Do not attempt to repair or replace damaged direct-connect front passenger air bag module connectors. If a direct-connect harness connector is damaged, the front passenger air bag must be replaced and the wiring harness modified.
- Before servicing SRS, turn the ignition switch OFF, disconnect both battery terminals and wait at least three minutes.
- Do not use old bolts after removal; replace with new bolts.
- Do not insert any foreign objects (screwdriver, etc.) into air bag module or harness connectors.
- Do not disassemble air bag module.
- Do not expose the front passenger air bag module to temperatures exceeding 90�C (194�F).





- Replace the front passenger air bag module if it has been dropped or sustained an impact.
- Do not allow oil, grease or water to come in contact with the front passenger air bag module.
1. Disconnect the negative and positive battery terminals, then wait at least three minutes.
2. Remove the RH lower instrument panel glove box assembly. Refer to Removal And Installation.





3. Remove the front passenger air bag module lower bracket bolt (A) from the steering member (1) through glove box opening.





4. Disconnect the front passenger air bag module connectors (1), then remove the nuts (A) from the steering member (2). Remove the front passenger air bag module through the glove box door opening area.
- For removal/installation of the direct-connect SRS connectors, refer to Direct-Connect SRS Component Connectors.





5. For front passenger air bag module instrument panel upper bracket removal, perform the following:
- Remove the instrument panel assembly. Refer to Removal And Installation.





- Remove the three screws (3) and the RH side ventilator duct.
- Remove the nine screws (A) attaching upper bracket (1) to instrument panel assembly.
- Release the molded in tabs (2) and remove the front passenger air bag module instrument panel upper bracket.

INSTALLATION

Original Front Passenger Air Bag Module
Installation is in the reverse order of removal.
- For removal/installation of the direct-connect SRS connectors, refer to Direct-Connect SRS Component Connectors.

CAUTION:
- Always work from the side of or under front passenger air bag module.
- After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS Operation Check.

Service Replacement Front Passenger Air Bag Module
1. Install the front passenger air bag module instrument panel upper bracket.
2. Install the RH side ventilator duct.





3. Install the front passenger air bag module and nuts (A) to the instrument panel upper bracket (2).
4. Install the instrument panel assembly. Refer to Component Parts.





5. Install the front passenger air bag module lower bracket bolt (A) to the steering member (1) through glove box opening.
6. Connect the front passenger air bag module harness connector to yellow 4-pin service replacement air bag connector and fasten connector to mounting bracket.
7. Install RH lower instrument panel glove box assembly. Refer to Removal And Installation.

CAUTION:
- Always work from the side of or under front passenger air bag module.
- After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS Operation Check.

WIRING HARNESS MODIFICATION
The passenger air bag module originally installed in the vehicle uses direct-connect style harness connectors.
Service replacement passenger air bag modules use tab-locking style harness connectors. If the passenger air bag module is replaced or if the direct-connect harness connectors are damaged, the vehicle wiring harness must be modified to allow connection of the service replacement passenger air bag module.

NOTE:
The wiring harness modification is to be performed only if the vehicle is equipped with the original passenger air bag which uses direct-connect harness connectors. If the passenger air bag is to be replaced in a vehicle that has already had the service replacement passenger air bag installed, the wiring harness modification is not required.

CAUTION:
- Do not attempt to repair or replace damaged direct-connect front passenger air bag module connectors. If a direct-connect harness connector is damaged, the front passenger air bag must be replaced and the wiring harness modified.
- Before servicing SRS, turn the ignition switch off, disconnect both battery terminals and wait at least three minutes.
- Always work from the side of or under front passenger air bag module.
- After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS Operation Check.
1. Locate the yellow and orange direct-connect passenger air bag module harness connectors.
2. Use wire cutters to cut back both previously used direct-connect passenger air bag module harness connectors from the vehicle wiring harness approximately 50 mm (1.9 in) from the connectors.
3. Remove approximately 150 mm (5.9 in) of the vehicle harness covering from the cut end.





4. Slide a piece of dual-wall heat shrink tubing (provided in the passenger air bag service kit) onto each wire of the previously used vehicle wiring harness.
5. Fold each wire back and insert into the end of the heat shrink tubing so that the end of the wire is approximately centered in the heat shrink tubing.





6. Use a heat gun to shrink the heat shrink tubing and seal the wire.
7. Use electrical tape to secure the modified circuits to the outside of the wiring harness.





8. Locate the front passenger air bag service replacement connector that is taped back to the main harness. Unwrap the tape to access the yellow service replacement connector and remove the dust cover from the connector.
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