Nissan Pathfinder (2009 year). Manual - part 598

FRONT PASSENGER AIR BAG MODULE

SR-11

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air bag module is replaced or if the direct-connect harness connectors are damaged, the vehicle wiring har-
ness 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 connec-

tors. 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

3 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 

SRC-13, "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 con-
nectors 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 pas-
senger 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 connec-
tor 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.

LHIA0017E

WHIA0062E

WHIA0118E

2009 Pathfinder

SR-12

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SIDE CURTAIN AIR BAG MODULE

SIDE CURTAIN AIR BAG MODULE

Removal and Installation

INFOID:0000000003937543

REMOVAL

CAUTION:

• Do not attempt to repair or replace damaged direct-connect SRS component connectors. If a direct-

connect harness connector is damaged, the harness must be replaced.

• Before servicing the SRS, turn the ignition switch off, disconnect both battery terminals and wait at

least 3 minutes.

• When servicing the SRS, do not work from directly in front of air bag module.
1.

Remove headlining. Refer to 

INT-20, "Removal and Installation"

.

2.

Disconnect front and rear side curtain air bag module connectors.
• For removal/installation of the direct-connect SRS connectors, refer to 

SRC-9, "Direct-connect SRS

Component Connectors"

.

3.

Remove the bolts in order starting at the front or rear, and remove the side curtain air bag module.

CAUTION:

• When servicing the SRS, do not work from directly in front of air bag module.
• 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 air bag module to temperatures exceeding 90

°

C (194

°

F).

• Replace side curtain 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

air bag module.

INSTALLATION

Installation is in the reverse order of removal.
• For removal/installation of the direct-connect SRS connectors, refer to 

SRC-9, "Direct-connect SRS Compo-

nent Connectors"

.

• After replacement of side curtain air bag module, perform self-diagnosis to check that no malfunction is

detected. Refer to 

SRC-13, "SRS Operation Check"

.

WHIA0299E

1. 

Rear side curtain air bag module

2.

Front side curtain air bag module

3.

Sail panel extrusion

SBF814E

2009 Pathfinder

CRASH ZONE SENSOR

SR-13

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CRASH ZONE SENSOR

Removal and Installation

INFOID:0000000003937544

REMOVAL

CAUTION:

• Before servicing the SRS, turn the ignition switch off, disconnect both battery terminals and wait at

least 3 minutes.

1.

Disconnect the negative and positive battery terminals, then wait at least 3 minutes.

2.

Remove crash zone sensor nuts and shield from support mem-
ber. 

3.

Disconnect the crash zone sensor harness connector.

4.

Remove crash zone sensor.

CAUTION:

• Replace crash zone sensor if it has been dropped or sustained an impact.
• Do not disassemble crash zone sensor.

INSTALLATION

Installation is in the reverse order of removal.
• After the work is complete, perform self-diagnosis to check that no malfunction is detected. Refer to 

SRC-13,

"SRS Operation Check"

.

LHIA0090E

2009 Pathfinder

SR-14

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SIDE AIR BAG (SATELLITE) SENSOR

SIDE AIR BAG (SATELLITE) SENSOR

Removal and Installation

INFOID:0000000003937545

REMOVAL

CAUTION:

• Before servicing the SRS, turn the ignition switch off, disconnect both battery terminals and wait at

least 3 minutes.

1.

Disconnect the negative and positive battery terminals, then wait at least 3 minutes.

2.

Remove front door sill finisher and lift carpet.

3.

Remove side air bag (satellite) sensor nuts and release the clip.

4.

Disconnect the side air bag (satellite) sensor connector.

CAUTION:

• Do not use old nuts after removal; replace with new nuts.
• Check side air bag (satellite) sensor to ensure it is free of deformities, dents, cracks or rust. If it

shows any visible signs of damage, replace it with new one.

• Do not disassemble side air bag (satellite) sensor.
• Replace side air bag (satellite) sensor if it has been dropped or sustained an impact.

INSTALLATION

Installation is in the reverse order of removal.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to 

SRC-

13, "SRS Operation Check"

.

1.

Front seat finisher

2.

Side air bag (satellite) sensor

3.

Clip

4.

Nuts

5.

Side air bag (Satellite) sensor connector

LHIA0091E

2009 Pathfinder

FRONT SEAT BELT PRE-TENSIONER

SR-15

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FRONT SEAT BELT PRE-TENSIONER

Removal and Installation

INFOID:0000000003937546

For removal and installation procedures, refer to 

SB-4, "Removal and Installation of Front Seat Belt"

. 

2009 Pathfinder

SR-16

< ON-VEHICLE REPAIR >

DIAGNOSIS SENSOR UNIT

DIAGNOSIS SENSOR UNIT

Removal and Installation

INFOID:0000000003937547

REMOVAL

CAUTION:

• Before servicing the SRS, turn the ignition switch off, disconnect both battery terminals and wait at

least 3 minutes.

1.

Disconnect the negative and positive battery terminals, then wait at least 3 minutes.

2.

Disconnect the connectors for each air bag module and seat belt pre-tensioner.

3.

Remove center console. Refer to 

IP-11, "Removal and Installation"

.

4.

Disconnect diagnosis sensor unit connectors.

5.

Remove bolts from the diagnosis sensor unit.

CAUTION:

• Do not use old bolts; replace with new bolts.
• Check diagnosis sensor unit bracket to ensure it is free of deformities, dents, cracks or rust. If it

shows any visible signs of damage, replace with new one.

• Replace diagnosis sensor unit if it has been dropped or sustained an impact.

INSTALLATION

Installation is in the reverse order of removal.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to 

SRC-

13, "SRS Operation Check"

.

CAUTION:

• The diagnosis sensor unit must always be installed with the arrow mark "

⇐

" pointing toward the

front of the vehicle for proper operation.

ECU DISCRIMINATED NO.

After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the
vehicle as equipped. Refer to 

SRC-15, "CONSULT-III Function (AIR BAG)"

.

WHIA0274E

1.

Diagnosis sensor unit connectors

2.

Diagnosis sensor unit

2009 Pathfinder

OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

SR-17

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OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

Removal and Installation

INFOID:0000000003937548

The occupant classification control unit, occupant classification (pressure) sensor, and bladder are an integral
part of the front passenger seat cushion and are replaced as an assembly. Refer to 

SE-30, "Removal and

Installation"

 to remove the seat, and 

SE-40, "Seat Cushion Trim and Pad"

 to replace the seat cushion.

2009 Pathfinder

SR-18

< ON-VEHICLE REPAIR >

COLLISION DIAGNOSIS

COLLISION DIAGNOSIS

For Frontal Collision

INFOID:0000000003937549

Check the SRS components using the following table.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to 

SRC-

13, "SRS Operation Check"

.

SRS INSPECTION (FOR FRONTAL COLLISION)

Part

SRS is activated

SRS is NOT activated

Driver air bag module

If the driver air bag 
has deployed:
REPLACE
Install with new fas-
teners.

If the driver air bag has NOT been activated:
1.

Remove driver air bag module. Check harness cover and connectors for dam-
age, terminals for deformities, and harness for binding.

2.

Install driver air bag module into the steering wheel to check fit and alignment 
with the wheel.

3.

If no damage is found, reinstall with new fasteners.

4.

If damaged—REPLACE. Install driver air bag modules with new fasteners.

Front passenger air 
bag module

If the front passenger 
air bag has deployed:
REPLACE
Install with new fas-
teners.

If the front passenger air bag has NOT been activated:
1.

Remove front passenger air bag module. Check harness cover and connectors 
for damage, terminals for deformities, and harness for binding.

2.

Install front passenger air bag module into the instrument panel to check fit with 
the instrument panel.

3.

If no damage is found, reinstall with new fasteners.

4.

If damaged—REPLACE. Install front passenger air bag modules with new fas-
teners.

Crash zone sensor

If any of the front air 
bags or seat belt pre-
tensioners* have 
been activated:
REPLACE the crash 
zone sensor and 
bracket with new fas-
teners.

*: Confirm seat belt 
pre-tensioner activa-
tion using CONSULT-
III only.

If the front air bags or seat belt pre-tensioners have NOT been activated:
1.

Remove the crash zone sensor. Check harness connectors for damage, termi-
nals for deformities, and harness for binding.

2.

Check for visible signs of damage (dents, cracks, deformation) of the crash zone 
sensor and bracket.

3.

Install the crash zone sensor to check fit.

4.

If no damage is found, reinstall with new fasteners.

5.

If damaged—REPLACE the crash zone sensor and bracket with new fasteners. 

Seat belt pre-tension-
er assemblies
(All applicable loca-
tions: buckle, reel, lap 
outer)

If either the driver or 
passenger seat belt 
pre-tensioner* has 
been activated:
REPLACE all seat 
belt pre-tensioner as-
semblies with new 
fasteners.

*: Confirm seat belt 
pre-tensioner activa-
tion using CONSULT-
III only.

If the pre-tensioners have NOT been activated:
1.

Remove seat belt pre-tensioners.
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 the center pillar inner has no damage, REPLACE the seat belt pre-tensioner 
assembly.

7.

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

8.

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

Diagnosis sensor unit

If any of the SRS com-
ponents have been 
activated:
REPLACE the diag-
nosis sensor unit.
Install with new fas-
teners.

If none of the SRS components have been activated:
1.

Check case for dents, cracks or deformities.

2.

Check connectors for damage, and terminals for deformities.

3.

If no damage is found, reinstall with new fasteners.

4.

If damaged—REPLACE. Install diagnosis sensor unit with new fasteners.

2009 Pathfinder