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 SRS 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 per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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
harness connectors.

Precautions for Steering System

NGS0003B

●

In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehi-
cle condition, and then check wheel alignment.

●

Observe the following precautions when disassembling.

–

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 becom-
ing 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.

–

Do not reuse non-reusable parts.

–

Before assembling, apply the specified grease to the directed parts.

PREPARATION

PS-3

Revision: 2006 August

2006 Murano

PREPARATION

PFP:00002

Special Service Tools

NGS000BJ

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

ST27180001
(J-25726-A)
Steering wheel puller
a: 29 mm (1.14 in)
b: M10

1.25P

c: M8

1.25P

Removing steering wheel

KV48104400
(J-46213)
Rear cover wrench
a: 19 mm (0.75 in)
b: 34.9 mm (1.374 in)

Removing rear cover

ST3127S000
(

—

)

●

Inspecting sliding torque

●

Inspecting steering torque

●

Inspecting rotating torque for ball joint

KV48104400
(

—

)

Teflon ring correcting tool
a: 50 mm (1.97 in) dia.
b: 58 mm (2.28 in) dia.
c: 100 mm (3.94 in)
d: 36 mm (1.42 in) dia.

Installing rack Teflon ring

KV48103400
(

—

)

Torque adapter

Inspecting pinon rotating torque

1. KV48102500-04
(

—

)

Washer

2. KV48102500-01
(

—

)

Eye joint

3. KV48102500-03
(

—

)

Bolt

4. KV48102500-02
(

—

)

Flare Joint

5. KV48103500
(J-26357 and J-26357-10)
Oil pressure gauge

Measuring power steering oil pump relief
pressure

SGIA1385E

SGIA0516E

ZZA0806D

SGIA1386E

ZZA0824D

SGIA0442E

PS-4

PREPARATION

Revision: 2006 August

2006 Murano

Commercial Service Tools

NGS000BK

Tool name

Description

Power tool

Loosening nuts and bolts

PBIC0190E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PS-5

Revision: 2006 August

2006 Murano

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

NGS0003E

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

: Applicable

Reference page

H in

PR s

H in

RFD s

AX,

RAX, FSU,

RSU s

tio

AX s

tio

H in

BR s

Possible cause and suspected parts

lui

d l

vel

hyd

rau

lic sys

ie-

rod

bal

l j

t s

ie-

rod

bal

l j

t r

rque

ie-

rod

bal

l j

t e

teer

g f

lui

d l

age

teer

g w

eel

teer

gear

lid

ing

e bel

t l

oos

enes

oper

lla

r l

ose

ness

ilt

ck l

ver

ubb

det

teer

g col

def

on or

oper

lla

ose

ness

eer

teer

g l

inka

ge l

osen

ess

OPE

LLER SHAFT

DIFFERENTIAL

LE and SUSPENSION

ROAD W

EEL

DRIVE SHAFT

Symptom

STEERING

Noise

× × × × × × × × ×

× × × × × ×

Shake

× × ×

× × × ×

Vibration

× × × × ×

× ×

Shimmy

× × ×

Judder

× × ×

PS-6

POWER STEERING FLUID

Revision: 2006 August

2006 Murano

POWER STEERING FLUID

PFP:KLF20

Checking Fluid Level

NGS0003F

Check fluid level with engine stopped.

Make sure that fluid level is between MIN and MAX.

Fluid levels at HOT and COLD are different. Do not confuse
them.

CAUTION:

●

The fluid level should not exceed the MAX line. Excessive
fluid will cause fluid leakage from the cap.

●

Do not reuse drained power steering fluid.

●

Recommended fluid is Genuine Nissan PSF or equiva-
lent.

Checking Fluid Leakage

NGS0003G

Check the lines for improper attachment and for leaks, cracks,
damage, loose connections, chafing or deterioration.

Run engine until fluid temperature reaches 50 to 80

C (122 to

176

F) in reservoir tank. Keep engine speed idle.

Turn steering wheel right-to-left several times.

Hold steering wheel at each “lock” position for five seconds to
check fluid leakage.

CAUTION:

Do not hold steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)

If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten con-
nector as this can damage O-ring, washer and connector.

If fluid leakage from oil pump is noticed, check oil pump. Refer to

PS-29, "POWER STEERING OIL

PUMP"

Check steering gear boots for accumulation of power steering fluid indicating a steering gear leak.

HOT

: Fluid temperature 50 - 80

C (122 - 176

COLD

: Fluid temperature 0 - 30

C (32 - 86

SGIA0232J

SGIA0506E

POWER STEERING FLUID

PS-7

Revision: 2006 August

2006 Murano

Air Bleeding Hydraulic System

NGS0003H

Turn steering wheel several times from full left stop to full right stop with engine off.

CAUTION:

●

Turn steering wheel while filling reservoir tank with fluid so as not to lower fluid level below the
MIN line.

●

When air bleeding is incomplete, the following phenomena occur. Although a fluid sound can be
heard from the gear and pump when turning the steering wheel all the way or slowly, this is not
a malfunction.

–

Bubbles are created in reservoir tank.

–

Clicking noise can be heard from power steering oil pump.

–

Excessive buzzing in the power steering oil pump.

Start engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.

Repeat step 2 above several times at approximately 3 second intervals.

CAUTION:

Do not hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that power steering oil pump may be damaged.)

Check fluid for bubbles and while contamination.

Stop engine if bubbles and white contamination do not drain out. Perform steps 2 and 3 above after wait-
ing until bubbles and white contamination drain out.

Stop the engine, and then check fluid level.

PS-8

STEERING WHEEL

Revision: 2006 August

2006 Murano

STEERING WHEEL

PFP:48430

On-Vehicle Service

NGS000BL

CONDITION OF INSTALLATION

Check installation conditions of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check the following items when steering wheel axial end play is out of the standard.

Check the mounting nut and bolt of steering column assembly. Refer to

PS-15, "COMPONENT"

Check steering column. Refer to

PS-13, "INSPECTION AFTER REMOVAL"

Check steering gear assembly mounting bolts and nut for looseness. Refer to

PS-11, "COMPONENT"

STEERING WHEEL PLAY

Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumference when steering wheel is turned up to the point
where tires start moving.

Check the following items when steering wheel play is out of the standard.

Check backlash for each joint of steering column.

Check installation condition of steering gear assembly.

NEUTRAL POSITION ON STEERING WHEEL

Make sure that steering gear assembly, steering column assembly and steering wheel are installed in the
correct position.

Perform neutral position inspection after wheel alignment. Refer to

FSU-5, "Wheel Alignment Inspection"

Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.

Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.

STEERING WHEEL TURNING FORCE

Park vehicle on a level and dry surface, set parking brake.

Tires need to be inflated normal pressure.

Start engine.

Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80

C (122 to 176

F).]

Check steering wheel turning force when steering wheel has
been turned 540

from neutral position.

NOTE:
Multiply the distance (L) from the hook of spring scale to the
center of steering wheel by the measurement value with a spring
scale.

Check the following items when steering wheel turning force is
more than the standard.

Check relief oil pressure of power steering oil pump. Refer to

PS-29, "RELIEF OIL PRESSURE"

Steering wheel axial end play

: 0 mm (0 in)

Steering wheel play

: 0 - 35 mm (0 - 1.37 in)

Steering wheel turning force:

7.45 N·m (0.76 kg-m, 66 in-lb) or less

SGIA1025J

STEERING WHEEL

PS-9

Revision: 2006 August

2006 Murano

RACK SLIDING FORCE

Start engine.

Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80

C (122 to 176

F).]

Disconnect lower joint and steering knuckle from steering gear assembly. Refer to

PS-11, "COMPO-

NENT"

While pulling outer socket slowly in

11.5 mm (

0.453 in) range

from neutral position, make sure rack sliding force is within
specification.

If rack sliding force is not within specification, overhaul steering
gear assembly. Refer to

PS-20, "Disassembly and Assembly"

FRONT WHEEL TURNING ANGLE

Check toe-in. Refer to

FSU-5, "Wheel Alignment Inspection"

Place front wheels on turning radius gauges and rear wheels on
stands so that vehicle can be level. Check the maximum inner
and outer wheel turning angles for LH and RH road wheels.

Start engine and run at idle, turn steering wheel all the way right
and left, measure the turning angle.

Check the following items when turning angle is out of the standard.

Check rack stroke.

Disassemble steering gear assembly to check the cause that
rack stroke is outside of the standard. Refer to

PS-20, "Disas-

sembly and Assembly"

Steering angles are not adjustable. Check steering gear assem-
bly, steering column assembly and front suspension compo-
nents for wear or damage if any of the turning angles are
different from the specified value. Replace any of them, if any
non-standard condition exists.

Rack sliding force (2WD)

: 215.8 - 274.6 N (22.1 - 28.0 kg, 48.6 - 61.7 lb)

Rack sliding force (AWD)

: 225.4 - 284.2 N (23.0 - 28.9 kg, 50.7 - 63.8 lb)

SST090B

SMA127

Inner wheel (Angle: A)

Minimum

: 34

′

(34.5

)

Nominal

: 38

′

(38.0

)

Maximum

: 39

′

(39.0

)

Outer wheel (Angle: B)

Nominal

: 31

′

(31.5

)

SGIA0055E

Rack stroke “L”

: 71.5 mm (2.815 in)

SGIA0629J

PS-10

STEERING WHEEL

Revision: 2006 August

2006 Murano

Removal and Installation

NGS0003J

REMOVAL

NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
will omit neutral position alignment procedure during spiral cable installation.

Set vehicle to the straight-ahead position.

Remove driver air bag module. Refer to

SRS-39, "DRIVER AIR BAG MODULE"

Remove steering wheel lock nut after steering is locked.

Remove steering wheel with the steering wheel puller (A).

INSTALLATION

Note the following, and installation is in the reverse order of removal.

●

When installing the steering wheel, tighten lock nut to the specified torque.

CAUTION:

Check the spiral cable neutral position after replacing or rotating spiral cable. Refer to

SRS-41,

"INSTALLATION"

Tool number

A: ST27180001 (J-25726-A)

SGIA1323E

Steering wheel lock nut

: 34.3 N·m (3.5 kg-m, 25 in-lb)

STEERING COLUMN

PS-11

Revision: 2006 August

2006 Murano

STEERING COLUMN

PFP:48810

Removal and Installation

NGS0003K

COMPONENT

REMOVAL

Set vehicle to the straight ahead-direction.

Remove driver air bag module from steering wheel. Refer to

SRS-39, "DRIVER AIR BAG MODULE"

Disconnect steering switch connector, remove steering wheel lock nut, then remove steering wheel. Refer
to

SRS-41, "SPIRAL CABLE"

Remove fixing screw of tilt lever knob, then remove tilt lever
knob from tilt lever.

Remove instrument driver lower panel. Refer to

IP-10,

"INSTRUMENT PANEL ASSEMBLY"

Remove steering column cover and ignition key finisher. Refer
to

IP-10, "INSTRUMENT PANEL ASSEMBLY"

Remove NATS antenna amp. Refer to

BL-258, "How to Replace

NATS Antenna Amp."

Steering wheel lock nut

Lid

Steering wheel

Combination switch and spiral cable 5.

Steering column assembly

Hole cover seal

Clamp

Hole cover

Lower shaft

10. Tilt lever knob

SGIA0823E

SGIA0469E

PS-12

STEERING COLUMN

Revision: 2006 August

2006 Murano

Remove fixing screws of knee protector, then remove knee pro-
tector from vehicle.

Remove combination switch and spiral cable from steering col-
umn assembly. Refer to

SRS-41, "SPIRAL CABLE"

10. Disconnect harness connector from each switch on steering col-

umn shaft, then separate vehicle side harness from it.

11. Remove lock nut and bolt, then separate lower shaft (1) from

upper joint (2).

12. Remove mounting nuts from steering member, remove steering

column assembly from steering member.

CAUTION:

●

Do not give axial impact to steering column assembly
during removal.

●

Do not move steering gear assembly when removing
steering column assembly.

13. Loosen clamp, and then remove hole cover seal from hole

cover.

14. Remove mounting nuts of hole cover, and then remove clamp

and hole cover from dash panel.

15. Raise vehicle, and then remove mounting bolt (lower side) of

lower shaft (1) and remove lower shaft (1) from vehicle.

SGIA0470E

SGIA1137E

SGIA1174E

SGIA1138E

STEERING COLUMN

PS-13

Revision: 2006 August

2006 Murano

INSPECTION AFTER REMOVAL

●

Check each part of steering column assembly, hole cover seal, clamp, hole cover and lower shaft for dam-
age or other malfunctions. Replace if there are.

●

Measure the length “L1” or “L2” as shown in the figure if vehicle
has been involved in a minor collision. Replace steering column
assembly if outside the standard.

●

Measure steering column rotating torque using preload gauge.
Replace steering column assembly if outside the standard.

●

Check tilt mechanism operating range “L” as shown in the figure.

CAUTION:

Measure the operating range “L” at the end of the shaft.

INSTALLATION

Note the following, and installation is in the reverse order of removal.

●

Refer to

PS-11, "COMPONENT"

about each tightening torque.

●

When installing steering column assembly to steering member, install mounting nuts from front side of
vehicle with tilt neutral position.

CAUTION:

Do not give axial impact to steering column assembly during installation.

●

When installing lower shaft to steering gear assembly, follow the procedure listed below.

–

Set rack of steering gear in the neutral position.

NOTE:
To get the neutral position of rack, turn sub-gear assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.

–

Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.

–

Install slit part of lower shaft (C) aligning with the projection (A)
of rear cover cap (1). Make sure that the slit part of lower shaft
(C) is aligned with both the projection (A) of rear cover cap (1)
and the marking position (B) of gear housing assembly.

INSPECTION AFTER INSTALLATION

●

Make sure that steering wheel operates smoothly by turning several times from full left stop to full right
stop.

Steering column length

L1: 182 mm (7.17 in)

L2: 242.6 mm (9.55 in)

Turning torque

: 0 - 0.2 N·m (0 - 0.02 kg-m, 0 - 2 in-lb)

Operating range “L”

: 49.4 mm (1.945 in)

SGIA0475E

SGIA1538E

SGIA1140E

PS-14

STEERING COLUMN

Revision: 2006 August

2006 Murano

Disassembly and Assembly

NGS0003L

COMPONENT

DISASSEMBLY

Remove spring from steering column assembly and tilt lever.

Remove fixing bolt of upper joint, then remove upper joint from
steering column assembly.

ASSEMBLY

Note the following, and assembly is in the reverse order of disassembly.

●

Refer to

PS-14, "COMPONENT"

about each tightening torque.

Steering column assembly

Spring

Tilt lever knob

Upper joint

SGIA0824E

SGIA0479E

Content .. 177 178 179 180 ..