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Nissan Pathfinder (2010 year). Manual - part 590

SR-18

< ON-VEHICLE REPAIR >

OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

OCCUPANT CLASSIFICATION SYSTEM CONTROL UNIT

Removal and Installation

INFOID:0000000005258538

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-41, "Seat Cushion Trim and Pad"

to replace the seat cushion.

2010 Pathfinder

COLLISION DIAGNOSIS

SR-19

< ON-VEHICLE REPAIR >

COLLISION DIAGNOSIS

For Frontal Collision

INFOID:0000000005258539

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.

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

If no damage is found, reinstall with new fasteners.

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.

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

If no damage is found, reinstall with new fasteners.

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.

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

Install the crash zone sensor to check fit.

If no damage is found, reinstall with new fasteners.

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.

Check belts for damage and anchors for loose mounting.

Check retractor for smooth operation.

Check seat belt adjuster for damage.

Check for deformities of the center pillar inner.

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

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

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.

Check connectors for damage, and terminals for deformities.

If no damage is found, reinstall with new fasteners.

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

2010 Pathfinder

SR-20

< ON-VEHICLE REPAIR >

COLLISION DIAGNOSIS

For Side and Rollover Collision

INFOID:0000000005258540

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"

WHEN SRS IS ACTIVATED IN THE SIDE OR ROLLOVER COLLISION

1. Replace the following components:

Front seat back assembly (on the side on which side air bag is activated)

Diagnosis sensor unit

(LH or RH) side air bag (satellite) sensor (on the side on which side air bag is activated)

2. 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).

3. Conduct self-diagnosis using CONSULT-III and “AIR BAG” warning lamp. Refer to

SRC-13, "SRS Opera-

tion Check"

for details. Ensure entire SRS operates properly.

WHEN SRS IS NOT ACTIVATED IN THE SIDE OR ROLLOVER COLLISION

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

If the front seat back assembly is damaged, the front seat back assembly must be replaced.

2. Conduct self-diagnosis using CONSULT-III and “AIR BAG” warning lamp. Refer to

SRC-13, "SRS Opera-

tion Check"

for details. Ensure entire SRS operates properly.

SRS INSPECTION (FOR SIDE AND ROLLOVER COLLISION)

Steering wheel

Visually check steering wheel for deformities.

Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.

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

Check steering wheel for excessive free play.

If no damage is found, reinstall.

If damaged—REPLACE.

Spiral cable

If the driver front air
bag has deployed:
REPLACE the spiral
cable.

If the driver front air bag has not deployed:
1.

Visually check spiral cable and combination switch for damage.

Check connectors and protective tape for damage.

Check steering wheel for noise, binding or heavy operation.

If no damage is found, reinstall.

If damaged—REPLACE.

Occupant classifica-
tion system (Passen-
ger seat)

Remove passenger seat.

Check control unit case for dents, cracks of deformities.

Check connectors and pressure sensor tube for damage, and terminals for deformities.

Check seat frame and cushion pan for dents or deformities.

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

If damaged — REPLACE seat cushion assembly with new fasteners.

Harness and connec-
tors

Check connectors for poor connection, damage, and terminals for deformities.

Check harness for binding, chafing, cuts, or deformities.

If no damage is found, reinstall the harness and connectors.

If damaged—REPLACE the damaged harness. Do not attempt to repair, splice or modify any SRS har-
ness.

Instrument panel

If the passenger front
air bag has deployed:
REPLACE the instru-
ment panel assembly.

If the passenger front air bag has NOT deployed:
1.

Visually check instrument panel for damage.

If no damage is found, reinstall the instrument panel.

If damaged—REPLACE the instrument panel.

Part

SRS is activated

SRS is NOT activated

2010 Pathfinder

COLLISION DIAGNOSIS

SR-21

< ON-VEHICLE REPAIR >

Part

SRS is activated

SRS is NOT activated

LH side curtain air
bag module

If the LH side curtain
air bag has deployed:
REPLACE the LH
side curtain air bag
module. (Repair the
center pillar inner, etc.
before installing new
one if damaged.)

If the LH side curtain air bag has NOT deployed:
1.

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

If damaged—Remove the LH side curtain air bag module.

Check for visible signs of damaged (tears etc.) of the LH side curtain air bag mod-
ule.

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

If no damage is found, reinstall the LH side curtain air bag module with new fas-
teners.

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

RH side curtain air
bag module

If the RH side curtain
air bag has deployed:
REPLACE the RH
side curtain air bag
module. (Repair the
center pillar inner, etc.
before installing new
one if damaged.)

If the RH side curtain air bag has NOT deployed:
1.

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

If damaged—Remove the RH side curtain air bag module.

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

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

If no damage is found, reinstall the RH side curtain air bag module with new fas-
teners.

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

Front LH side air bag
module

If the front LH side air
bag has deployed:
REPLACE front LH
seatback assembly.

If the front LH side air bag has NOT deployed:
1.

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

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

If damaged—REPLACE the front LH seatback assembly.

Front RH side air bag
module

If the front RH side air
bag has deployed:
REPLACE front RH
seatback assembly.

If the front RH side air bag has NOT deployed:
1.

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

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

If damaged—REPLACE the front RH seatback assembly.

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

If any of the SRS
components have de-
ployed:
REPLACE the side air
bag (satellite) sensor
on the collision side
with new fasteners.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.)

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

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

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

Install the side air bag (satellite) sensor to check fit.

If no damage is found, reinstall the side sir bag (satellite) sensor with new fasten-
ers.

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

Diagnosis sensor unit

If any of the SRS
components have de-
ployed:
REPLACE the diag-
nosis sensor unit with
new fasteners.

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

Check case and bracket for dents, cracks or deformities.

Check connectors for damage, and terminals for deformities.

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

If damaged—REPLACE the diagnosis sensor unit 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.

Check belts for damage and anchors for loose mounting.

Check retractor for smooth operation.

Check seat belt adjuster for damage.

Check for deformities of the center pillar inner.

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

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

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

2010 Pathfinder

SR-22

< ON-VEHICLE REPAIR >

COLLISION DIAGNOSIS

Seat (with front side
air bag)

If either the front LH or
front RH side air bag
modules has been de-
ployed:
REPLACE front seat-
back assembly on the
deployed side.

If the front LH or front RH side air bag modules have NOT deployed:
1.

Visually check the seat on the collision side.

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)

If no damage is found, reinstall the seat.

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

Center inner pillar

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

If damaged—REPAIR the center inner pillar.

Trim/headlining

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

If damaged—REPLACE the damaged trim parts.

Part

SRS is activated

SRS is NOT activated

2010 Pathfinder

SRC-1

RESTRAINTS

SECTION

SRC

SRC

CONTENTS

SRS AIRBAG CONTROL SYSTEM

BASIC INSPECTION ....................................

DIAGNOSIS AND REPAIR WORK FLOW .........

Work Flow .................................................................

INTERMITTENTS INCIDENT ..............................

Inspection Procedure ...............................................

Trouble Diagnosis with CONSULT-III .......................

FUNCTION DIAGNOSIS ...............................

SRS AIR BAG SYSTEM ......................................

SRS Configuration ....................................................

SRS Component Parts Location ...............................

Driver Air Bag Module ...............................................

Front Passenger Air Bag Module ..............................

Front Side Air Bag .....................................................

Side Curtain Air Bag ..................................................

Front Seat Belt Pre-tensioner with Load Limiter .......

Direct-connect SRS Component Connectors ............

OCCUPANT CLASSIFICATION SYSTEM .........

System Diagram ......................................................

Occupant Classification System (OCS) ..................

PASSENGER SEAT BELT WARNING SYS-
TEM ....................................................................

System Diagram ......................................................

System Description .................................................

Component Parts Location ......................................

ON BOARD DIAGNOSTIC (OBD) SYSTEM ......

Trouble Diagnosis Introduction ...............................

SRS Operation Check .............................................

Trouble Diagnosis without CONSULT-III ................

CONSULT-III Function (AIR BAG) ..........................

Self-Diagnosis Function (Without CONSULT-III) ....

COMPONENT DIAGNOSIS .........................

B1049 – B1052, B1054 – B1057 DRIVER AIR-
BAG MODULE ...................................................

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1065 – B1068, B1070 – B1073 PASSEN-
GER AIRBAG MODULE ...................................

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1134 – B1137 SIDE AIRBAG MODULE LH ...

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1129 – B1132 SIDE AIRBAG MODULE RH ...

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1198 – B1201 SIDE CURTAIN AIR BAG
MODULE LH (FRONT) ......................................

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1193 – B1196 SIDE CURTAIN AIR BAG
MODULE RH (FRONT) .....................................

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1150 – B1153 SIDE CURTAIN AIR BAG
MODULE LH (REAR) ........................................

Description ...............................................................

DTC Logic ................................................................

Diagnosis Procedure (Component Diagnosis) ........

B1145 – B1148 SIDE CURTAIN AIR BAG
MODULE RH (REAR) .......................................

Description ...............................................................

DTC Logic ................................................................

2010 Pathfinder

SRC-2

Diagnosis Procedure (Component Diagnosis) ........

B1086 – B1089 SEAT BELT PRE-TENSION-
ER LH .................................................................

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1081 – B1084 SEAT BELT PRE-TENSION-
ER RH ................................................................

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1033 – B1035 CRASH ZONE SENSOR .........

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1118 – B1120 SATELLITE SENSOR LH ........

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1113 – B1115 SATELLITE SENSOR RH .......

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1XXX AIR BAG DIAGNOSIS SENSOR UNIT ...

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1023 PASSENGER AIR BAG OFF INDICA-
TOR ....................................................................

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1017 – B1022 OCCUPANT CLASSIFICA-
TION SYSTEM ...................................................

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

B1209 – B1211 COLLISION DETECTION ........

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure (Component Diagnosis) ........

ECU DIAGNOSIS .......................................

DIAGNOSIS SENSOR UNIT .............................

Wiring Diagram .......................................................

Trouble Diagnosis with CONSULT-III .....................

Trouble Diagnosis without CONSULT-III ................

SYMPTOM DIAGNOSIS ............................

SRS AIR BAG SYSTEM ....................................

"AIR BAG" Warning Lamp Does Not Turn Off ........

"AIR BAG" Warning Lamp Does Not Turn On ........

PASSENGER SEAT BELT WARNING SYS-
TEM ....................................................................

Seat Belt Warning System Does Not Function .......

PRECAUTION ............................................

PRECAUTIONS .................................................

Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................

Precaution for SRS "AIR BAG" and "SEAT BELT
PRE-TENSIONER" Service ....................................

Occupant Classification System Precaution ...........

2010 Pathfinder

DIAGNOSIS AND REPAIR WORK FLOW

SRC-3

< BASIC INSPECTION >

SRC

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000005258541

OVERALL SEQUENCE

DETAILED WORK FLOW

CUSTOMER INFORMATION

Get detailed information from the customer about the symptom.

>> GO TO 2

PRELIMINARY CHECK

Perform preliminary check. Refer to

SRC-13, "Trouble Diagnosis Introduction"

SRC-13, "Trouble Diagnosis Intro-
duction"

SRC-13, "SRS Operation Check"

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

SRC-15, "Self-Diagnosis Function
(Without CONSULT-III)"

WHIA0348E

2010 Pathfinder

Content .. 588 589 590 591 ..