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Nissan Sentra B18 (2020-2025) Service Manual: For Side and Rollover Collision

Nissan Sentra B18 (2020-2025) Service Manual / Restraints / Srs Air Bag :: Basic Inspection / Collision Diagnosis / For Side and Rollover Collision

For Side and Rollover Collision

FOR SIDE AND ROLLOVER COLLISION: When SRS is activated in a collision

CAUTION:

Due to varying models and option levels, not all parts listed in the chart below apply to all Nissan Sentra vehicles.

WORK PROCEDURE

Before performing any of the following steps, ensure that all Nissan Sentra vehicle body and structural repairs have been completed.

Replace the following components:

Check the SRS components and the related parts using the following table.

Replace any SRS components and the related parts showing visible signs of damage (dents, cracks, deformation, etc.).

Perform self-diagnosis using CONSULT and “AIR BAG” warning lamp. Refer to Trouble Diagnosis with CONSULT for details. Make sure entire SRS operates properly.

After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS Final Check.

SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)

Part

Inspection

Side curtain air bag module LH

If the side curtain air bag LH has deployed:

REPLACE the side curtain air bag module LH.

Install with new fasteners.

Side curtain air bag module RH

If the side curtain air bag RH has deployed:

REPLACE the side curtain air bag module RH.

Install with new fasteners.

Front side air bag module LH

If the front side air bag LH has deployed:

REPLACE the front seatback assembly LH.

Front side air bag module RH

If the front side air bag RH has deployed:

REPLACE the front seatback assembly RH.

Front center air bag module

If the front center air bag has deployed:

REPLACE the front seatback assembly RH.

Rear side air bag module LH

If the rear side air bag LH has deployed:

REPLACE rear seatback assembly.

Rear side air bag module RH

If the rear side air bag RH has deployed:

REPLACE rear seatback assembly.

Side air bag (satellite) sensor (LH or RH)

If any of the SRS components have deployed:

REPLACE the side air bag (satellite) sensor on the collision side with new fasteners.

Door (satellite) sensor (LH or RH)

If any of the SRS components have deployed:

REPLACE the door (satellite) sensor on the collision side with new fasteners.

Diagnosis sensor unit

If any of the SRS components have deployed:

REPLACE the diagnosis sensor unit with new fasteners.

Seat belt pre-tensioner assemblies

(All applicable locations: buckle, retractor, lap outer)

If any of the seat belt pre-tensioners* has been activated:

REPLACE all seat belt pre-tensioner assemblies with new fasteners.

*: Confirm seat belt pre-tensioner activation using CONSULT only.

Center inner pillar

  1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation).

  2. If damaged —REPAIR the center inner pillar.

Trim/headlining

  1. Check for visible signs of damage (dents, cracks, deformation) of the interior trim on the collision side.

  2. If damaged — REPLACE the damaged trim parts.

Door-mounted curtain air bag module LH

If the door-mounted curtain air bag module LH has been deployed:

REPLACE the door finisher LH and door-mounted curtain air bag module.

Install with new fasteners.

Door-mounted curtain air bag module RH

If the door-mounted curtain air bag module RH has been deployed:

REPLACE the door finisher RH and door-mounted curtain air bag module.

Install with new fasteners.

Occupant classification system (Passenger seat)

  1. Remove passenger seat assembly.

  2. Check control unit case for dents, cracks, or deformities.

  3. Check connectors for damage and terminals for deformities.

  4. Check seat frame and cushion pan for dents or deformities.

  5. If no damage is found, reinstall seat with new fasteners.

  6. If damaged — REPLACE seat cushion assembly with new fasteners.

  7. Perform zero point reset function after front passenger seat is installed in the Nissan Sentra vehicle and all bolts are tightened to specification. Refer to Special Repair Requirement.

Pop-up roll bar assemblies

If the pop-up roll bar has deployed:

REPLACE pop-up roll bar assemblies and pop-up roll bar covers.

Install with new fasteners.

FOR SIDE AND ROLLOVER COLLISION: When SRS is not activated in a collision

CAUTION:

Due to varying models and option levels, not all parts listed in the chart below apply to all Nissan Sentra vehicles.

WORK PROCEDURE

Before performing any of the following steps, ensure that all Nissan Sentra vehicle body and structural repairs have been completed.

Check the SRS components and the related parts using the following table.

Perform self-diagnosis using CONSULT and “AIR BAG” warning lamp. Refer to Trouble Diagnosis with CONSULT for details. Make sure entire SRS operates properly.

After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS Final Check.

SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)

Part

Inspection

Side curtain air bag module LH

If the side curtain air bag LH has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on the collision side.

  2. If damaged - Remove the side curtain air bag module LH.

  3. Check for visible signs of damage (tears etc.) of the side curtain air bag module LH.

  4. Check harness and connectors for damage, and terminals for deformities.

  5. If no damage is found, reinstall the side curtain air bag module LH with new fasteners.

  6. If damaged — REPLACE the side curtain air bag module LH with new fasteners.

Side curtain air bag module RH

If the side curtain air bag RH has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on the collision side.

  2. If damaged - Remove the side curtain air bag module RH.

  3. Check for visible signs of damage (tears etc.) of the side curtain air bag module RH.

  4. Check harness and connectors for damage, and terminals for deformities.

  5. If no damage is found, reinstall the side curtain air bag module RH with new fasteners.

  6. If damaged — REPLACE the side curtain air bag module RH with new fasteners.

Front side air bag module LH

If the front side air bag LH has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the seatback on the collision side.

  2. Check harness and connectors for damage, and terminals for deformities.

  3. If damaged — REPLACE the front seatback assembly LH.

Front side air bag module RH

If the front side air bag RH has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the seatback on the collision side.

  2. Check harness and connectors for damage, and terminals for deformities.

  3. If damaged — REPLACE the front seatback assembly RH.

Front center air bag module

If the front center air bag has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the seatback on the collision side.

  2. Check harness and connectors for damage, and terminals for deformities.

  3. If damaged — REPLACE the front seatback assembly RH.

Rear side air bag module LH

If the rear side air bag LH side air bag has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the seatback on the collision side.

  2. Check harness and connectors for damage, and terminals for deformities.

  3. If damaged — REPLACE the rear seatback assembly.

Rear side air bag module RH

If the rear side air bag RH side air bag has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation) of the seatback on the collision side.

  2. Check harness and connectors for damage, and terminals for deformities.

  3. If damaged — REPLACE the rear seatback assembly.

Side air bag (satellite) sensor (LH or RH)

If none of the SRS components have been activated:

  1. Remove the side air bag (satellite) sensor (LH or RH) on the collision side. Check harness connectors for damage, terminals for deformities, and harness for binding.

  2. Check for visible signs of damage (dents, cracks, deformation) of the side air bag (satellite) sensor (LH or RH).

  3. Install the side air bag (satellite) sensor (LH or RH) to check fit.

  4. If no damage is found, reinstall the side air bag (satellite) sensor (LH or RH) with new fasteners.

  5. If damaged — REPLACE the side air bag (satellite) sensor (LH or RH) with new fasteners.

Door (satellite) sensor (LH or RH)

If none of the SRS components have been activated:

  1. Remove the door (satellite) sensor (LH or RH) on the collision side. Check harness connectors for damage, terminals for deformities, and harness for binding.

  2. Check for visible signs of damage (dents, cracks, deformation) of the door (satellite) sensor (LH or RH).

  3. Install the door (satellite) sensor (LH or RH) to check fit.

  4. If no damage is found, reinstall the door (satellite) sensor (LH or RH) with new fasteners.

  5. If damaged — REPLACE the door (satellite) sensor (LH or RH) with new fasteners.

Diagnosis sensor unit

If none of the SRS components have been activated:

  1. Check case and bracket for dents, cracks or deformities.

  2. Check connectors for damage, and terminals for deformities.

  3. If no damage is found, reinstall the air bag diagnosis sensor unit with new fasteners.

  4. If damaged — REPLACE the air bag diagnosis sensor unit with new fasteners.

Seat belt pre-tensioner assemblies

(All applicable locations: buckle, retractor, lap outer)

If the pre-tensioners have NOT been activated:

  1. Remove seat belt pre-tensioner assembly.

    Check harness cover and connectors for damage, terminals for deformities, and harness for binding.

  2. Check belts for damage and anchors for loose mounting.

  3. Check retractor for smooth operation.

  4. Check seat belt adjuster for damage.

  5. Check for deformities of the center pillar inner.

  6. If no damage is found, reinstall seat belt pre-tensioner assembly.

  7. If damaged —REPLACE. Install the seat belt pre-tensioners with new fasteners.

Seat (with front side air bag)

If the front LH or front RH side air bag modules have NOT deployed:

  1. Visually check the seat on the collision side.

  2. Remove the seat on the collision side and check the following for damage and deformities.

    • Harness, connectors and terminals

    • Frame and recliner (for front and rear seat), and also adjuster and slides (for front seat)

  3. If no damage is found, reinstall the seat.

  4. If damaged— REPLACE the damaged seat parts using new fasteners. If the front seatback is damaged, the front seatback assembly must be replaced.

Center inner pillar

  1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation, etc.).

  2. If damaged - REPAIR the center inner pillar.

Trim/headlining

  1. Check for visible signs of damage (dents, cracks, deformation, etc.) of the interior trim on the collision side.

  2. If damaged - REPLACE the damaged trim parts.

Door-mounted curtain air bag module LH

If the door-mounted curtain air bag LH has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation, etc.) of the door finisher on the collision side.

  2. If damaged - REPLACE the door finisher LH with new fasteners.

  3. Check for visible signs of damage (tears etc.) of the door-mounted curtain air bag module LH.

  4. Check harness and connectors for damage, and terminals for deformities.

  5. If no damage is found, reinstall door finisher.

    CAUTION:

    When removing door mounted curtain air bag module from door finisher, do not reuse door finisher.

  6. If damaged - REPLACE the door finisher LH and door-mounted curtain air bag module LH with new fasteners.

Door-mounted curtain air bag module RH

If the door-mounted curtain air bag RH has NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation, etc.) of the door finisher on the collision side.

  2. If damaged - REPLACE the door finisher RH with new fasteners.

  3. Check for visible signs of damage (tears etc.) of the door-mounted curtain air bag module RH.

  4. Check harness and connectors for damage, and terminals for deformities.

  5. If no damage is found, reinstall door finisher.

    CAUTION:

    When removing door mounted curtain air bag module from door finisher, do not reuse door finisher.

  6. If damaged - REPLACE the door finisher RH and door-mounted curtain air bag module RH with new fasteners.

Occupant classification system (Passenger seat)

  1. Remove passenger seat assembly.

  2. Check control unit case for dents, cracks, or deformities.

  3. Check connectors for damage and terminals for deformities.

  4. Check seat frame and cushion pan for dents or deformities.

  5. If no damage is found, reinstall seat with new fasteners.

  6. If damaged — REPLACE seat cushion assembly with new fasteners.

  7. Perform zero point reset function after front passenger seat is installed in the Nissan Sentra vehicle and all bolts are tightened to specification. Refer to Special Repair Requirement.

Pop-up roll bar

If the pop-up roll bar NOT deployed:

  1. Check for visible signs of damage (dents, tears, deformation, etc.) of the pop-up roll bar.

  2. If damaged - REPLACE the pop-up roll bar with new fasteners.

  3. Check harness and connectors for damage, and terminals for deformities.

  4. If no damage is found, reinstall the pop-up roll bar with new fasteners.

  5. Check for visible signs of damage (dents, cracks, deformation, etc.) of the seatback support brace assembly.

  6. If damaged - REPAIR the seatback support brace assembly.
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