Nissan Frontier. Manual - part 1180

PASSENGER SEAT BELT WARNING SYSTEM

SRC-85

< SYMPTOM DIAGNOSIS >

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PASSENGER SEAT BELT WARNING SYSTEM

Seat Belt Warning System Does Not Function

INFOID:0000000009480019

1.

SEAT BELT WARNING LIGHT

Turn ignition switch ON.
Does the seat belt warning lamp come ON?

YES

>> GO TO 2

NO

>> • Check 10A fuse [No. 14, located in the fuse block (J/B)].

• Check seat belt buckle switch LH.

• Check harness between combination meter and seat belt buckle switch LH.

• Check combination meter. Refer to 

MWI-39, "Fail Safe"

.

2.

SEAT BELT BUCKLE LH

Fasten the seat belt buckle LH.
Does the seat belt warning lamp go OFF?

YES

>> GO TO 3

NO

>> • Check seat belt buckle switch LH.

• Check harness between combination meter and seat belt buckle switch LH.

3.

OCCUPANT CLASSIFICATION SYSTEM

Have a helper sit in the passenger seat.
Does the seat belt warning lamp go ON?

YES

>> GO TO 4

NO

>> • Check occupant classification system. Refer to 

SRC-10, "Occupant Classification System

(OCS)"

.

• Check harness between occupant classification control unit and air bag diagnosis sensor unit.

4.

SEAT BELT BUCKLE RH

Fasten the seat belt buckle RH.
Does the seat belt warning lamp go OFF?

YES

>> System OK.

NO

>> • Check seat belt buckle switch RH.

• Check harness between seat belt buckle switch RH and air bag diagnosis sensor unit.

• Replace air bag diagnosis sensor unit. Refer to 

SR-23, "Removal and Installation"

.

SRC-86

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000009480020

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery and wait at least 3 minutes before performing any service.

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

INFOID:0000000009480021

• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.

• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-

utes.

For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-

tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have

passed.

• The air bag diagnosis sensor unit must always be installed with the arrow mark “

⇐” pointing toward the front

of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust

before installation and replace as required.

• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to

turn steering wheel or column after removal of steering gear.

• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side

facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.

• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.

• After air bag inflates, the front instrument panel assembly should be replaced if damaged.

Occupant Classification System Precaution

INFOID:0000000009480022

Replace occupant classification system control unit and passenger front seat cushion as an assembly.

ST-1

STEERING

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CONTENTS

STEERING SYSTEM

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

2

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

2

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

2

Precaution for Steering System ................................

2

PREPARATION ............................................

3

PREPARATION ...................................................

3

Special Service Tool  .................................................

3

Commercial Service Tool  ..........................................

4

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

5

NOISE, VIBRATION AND HARSHNESS 
(NVH) TROUBLESHOOTING  .............................

5

NVH Troubleshooting Chart  ......................................

5

PERIODIC MAINTENANCE ..........................

6

POWER STEERING FLUID  ................................

6

Checking Fluid Level .................................................

6

Checking Fluid Leakage ............................................

6

Air Bleeding Hydraulic System ..................................

6

POWER STEERING OIL PUMP ..........................

8

On-Vehicle Inspection and Service  ...........................

8

STEERING WHEEL .............................................

9

On-Vehicle Inspection and Service  ...........................

9

REMOVAL AND INSTALLATION ...............

11

STEERING WHEEL ............................................

11

Removal and Installation .........................................

11

STEERING COLUMN ........................................

12

Removal and Installation  .........................................

12

POWER STEERING GEAR AND LINKAGE  ....

15

Removal and Installation  .........................................

15

POWER STEERING OIL PUMP  .......................

17

Component ..............................................................

17

Removal and Installation  .........................................

18

HYDRAULIC LINE  ............................................

20

Removal and Installation  .........................................

20

UNIT DISASSEMBLY AND ASSEMBLY  ....

22

STEERING COLUMN ........................................

22

Disassembly and Assembly .....................................

22

POWER STEERING OIL PUMP  .......................

24

Component ..............................................................

24

Disassembly and Assembly .....................................

25

STEERING GEAR AND LINKAGE  ...................

27

Disassembly and Assembly .....................................

27

SERVICE DATA AND SPECIFICATIONS 
(SDS) ............................................................

30

SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

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Steering Wheel  ........................................................

30

Steering Column ......................................................

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Steering Gear  ..........................................................

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Tie-rod .....................................................................

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Oil Pump ..................................................................

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Steering Fluid  ..........................................................

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ST-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000010151211

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery and wait at least three minutes before performing any service.

Precaution for Steering System

INFOID:0000000009479911

• Before disassembly, thoroughly clean the outside of the unit.

• Disassembly should be done in a clean work area. It is important to prevent the internal parts from becoming

contaminated by dirt or other foreign matter.

• For easier and proper assembly, place disassembled parts in order on a parts rack.

• Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere with

their operation. 

• Before inspection or reassembly, carefully clean all parts with a general purpose, non-flammable solvent.

• Before assembly, apply a coat of recommended Genuine NISSAN PSF or equivalent to hydraulic parts.

Petroleum jelly may be applied to O-rings and seals. Do not use any grease.

• Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during installation. Per-

form functional tests whenever designated.