Nissan Altima L32. Instruction — part 1387

ST-1

STEERING

C

D

E

F

H

I

J

K

L

M

SECTION

ST

A

B

ST

N

O

P

CONTENTS

STEERING SYSTEM

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

3

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

3

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

3

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

4

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

4

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

4

Necessary for Steering Wheel Rotation after B
attery Disconnect . . . . . . . . . . . . . ..

4

General Precautions . . . . . . . . . . . .....

4

Service Notice or Precautions . . . . . . . . ...

4

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

6

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

6

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

6

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

7

ON-VEHICLE MAINTENANCE . . . . . .

8

POWER STEERING FLUID . . . . . . . .

8

Inspection . . . . . . . . . . . . . . . . ..

8

Draining . . . . . . . . . . . . . . . . .....

8

Refilling . . . . . . . . . . . . . . . . .....

8

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

10

Inspection . . . . . . . . . . . . . . . .

10

POWER STEERING OIL PUMP . . . . . . .

12

Inspection . . . . . . . . . . . . . . . .

12

ON-VEHICLE REPAIR . . . . . . . . .

13

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

13

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

13

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

14

Exploded View . . . . . . . . . . . . . .

14

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

14

STEERING GEAR AND LINKAGE . . . . ...

17

Exploded View . . . . . . . . . . . . . . .

17

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

17

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

19

QR25DE . . . . . . . . . . . . . . . . . .

19

QR25DE : Exploded View . . . . . . . . . ...

19

QR25DE : Removal and Installation . . . . . .

19

VQ35DE . . . . . . . . . . . . . . . . . .

19

VQ35DE : Exploded View . . . . . . . . . .

20

VQ35DE : Removal and Installation . . . . . .

20

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

21

QR25DE . . . . . . . . . . . . . . . . . .

21

QR25DE : Exploded View . . . . . . . . . ...

21

QR25DE : Removal and Installation . . . . . .

22

VQ35DE . . . . . . . . . . . . . . . . . .

22

VQ35DE : With 17 Inch Tire . . . . . . . . .

22

VQ35DE : With 18 Inch Tire . . . . . . . . .

24

DISASSEMBLY AND ASSEMBLY . . . ..

27

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

27

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

27

STEERING GEAR AND LINKAGE . . . . ...

28

Exploded View . . . . . . . . . . . . . . .

28

Disassembly . . . . . . . . . . . . . . .

28

Inspection . . . . . . . . . . . . . . . .

28

Assembly . . . . . . . . . . . . . . . . .

29

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

31

QR25DE . . . . . . . . . . . . . . . . . .

31

QR25DE : Disassembly and Assembly . . . . ...

31

VQ35DE . . . . . . . . . . . . . . . . . .

31

VQ35DE : Disassembly and Assembly . . . . ...

31

ST-2

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

32

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

32

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

32

Steering Angle . . . . . . . . . . . . . .

32

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

32

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

33

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

34

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

34

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

ST-3

< SYMPTOM DIAGNOSIS >

C

D

E

F

H

I

J

K

L

M

A

B

ST

N

O

P

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000004204006

Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable

Reference page

ST

-8

—

ST

-28

ST

-28

ST

-28

ST

-8

ST

-10

ST

-28

EM-16, "

Ch

ec

ki

ng

Driv

e

Bel

ts

"

(Q

R25DE

),

EM-121, "

Ch

ec

ki

ng

Driv

e B

elt

s"

(VQ

3

5DE

)

—

ST

-17

ST

-27

ST

-14, "

Rem

ov

al

an

d

Ins

ta

lla

tio

n"

ST

-17

Refe

r to

FA

X

-2

, "

NVH T

ro

ub

les

ho

ot

ing

Ch

art

"

Re

fe

r to

FS

U-2, "

NVH T

rou

bl

es

ho

oti

ng

Cha

rt

"

Re

fe

r to

WT

-6

1,

"

NV

H T

rou

bl

es

ho

oti

ng

Cha

rt

"

Re

fe

r to

WT

-6

1,

"

NV

H T

rou

bl

es

ho

oti

ng

Cha

rt

"

Refe

r to

FA

X

-2

, "

NVH T

ro

ub

les

ho

ot

ing

Ch

art

"

Re

fe

r to

BR

-6

, "

NV

H T

rou

ble

sho

oti

ng

Cha

rt

"

Possible cause and SUSPECTED PARTS

F

lui

d l

ev

el

Air i

n

hy

dra

u

lic

sy

st

em

O

u

ter

so

ck

et

ba

ll

joi

nt

swi

ng

ing

fo

rce

Ou

ter

so

cket

ba

ll

joi

nt

rot

a

ting

torq

ue

O

u

ter

so

ck

et

ba

ll

joi

nt

en

d p

la

y

S

te

e

ring

fl

ui

d

le

ak

ag

e

S

te

e

ring

whe

e

l pl

ay

S

te

e

ring

ge

ar rac

k sl

id

in

g fo

rce

Dri

ve

be

lt

loo

sene

ss

Im

pro

p

er

st

ee

ring

wh

ee

l

M

ou

nt

ing

ru

bb

er d

ete

rio

rat

ion

S

tee

rin

g c

o

lum

n

de

form

at

ion

o

r da

ma

ge

Im

p

rop

er i

ns

tal

la

tio

n o

r lo

os

en

es

s of

st

ee

ring

c

olu

m

n

S

te

e

ring

li

nk

ag

e l

o

os

en

es

s

W

H

EEL H

U

B

AX

LE and

SUSP

ENSION

TI

RE

S

ROAD W

H

EEL

DRIV

E

SHAFT

BRA

KES

Symptom

Steering

Noise

×

×

×

×

×

×

×

×

×

×

×

×

× ×

×

Shake

×

×

×

×

× ×

×

Vibration

×

×

×

×

×

×

×

Shimmy

×

×

×

×

×

×

×

Shudder

×

×

×

×

×

×

ST-4

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSION-
ER"

INFOID:0000000004204007

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

ness connectors.

Necessary for Steering Wheel Rotation after Battery Disconnect

INFOID:0000000004204008

NOTE:

• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-

tion, then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both

battery cables.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

This vehicle is equipped with a push-button ignition switch and a steering lock unit.

If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.

If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure

below before starting the repair operation.

OPERATION PROCEDURE

1. Connect both battery cables.

NOTE:

Supply power using jumper cables if battery is discharged.

2. Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position.

(At this time, the steering lock will be released.)

3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-

nected and the steering wheel can be turned.

4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn

the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering

wheel will lock when the push-button ignition switch is turned to LOCK position.)

6. Perform self-diagnosis check of all control units using CONSULT-III.

General Precautions

INFOID:0000000004204009

Service Notice or Precautions

INFOID:0000000004204010

• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle

condition, and then check wheel alignment.