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 Brake System

AFS0016P

●

Recommended fluid is brake fluid “DOT 3”.

●

Do not reuse drained brake fluid.

●

Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed
on painted areas, wash it away with water immediately.

●

To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.

●

Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

●

Use flare nut wrench when removing and installing brake tube.

●

Always tighten brake lines to specified torque when installing.

●

Before working, turn ignition switch OFF and disconnect electri-
cal connectors of ABS actuator and electric unit (control unit) or
battery terminals.

●

Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage.
Refer to

BR-32, "BRAKE BURNISHING PROCEDURE"

WARNING:

●

Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.

SBR686C

BR-4

PREPARATION

Revision; 2004 April

2003 Murano

PREPARATION

PFP:00002

Commercial Service Tools

AFS0016Q

Tool name

Description

1. Flare nut crowfoot

a:10 mm (0.39 in) / 12 mm (0.47 in)

2. Torque wrench

Removing and installing each brake
piping

Power tool

Removing front and rear caliper
assembly, tires

S-NT360

PBIC0190E

PBIC0191E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

BR-5

Revision; 2004 April

2003 Murano

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

AFS0016R

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

: Applicable

Reference page

BR-

—

BR-

—

BR-

—

H in

PR s

H in

RFD s

H in

AX, RAX

RSU s

tio

AX and R

AX sec

H in

PS s

tio

Possible cause and
suspected parts

Pad

dam

age

Pad

unev

en w

ear

Shi

s dam

r i

bal

anc

r d

r r

uno

r d

r ru

r t

ickn

ess

rum

oun

PROPELL

R SHAF

DIFFERENTIAL

AXL

E AND

SUSPENSION

TIRES

ROAD W

EEL

STEERING

Symptom

Brake

Noise

Shake

Shimmy, Judder

BR-6

BRAKE PEDAL

Revision; 2004 April

2003 Murano

BRAKE PEDAL

PFP:46501

Inspection and Adjustment

AFS0016S

PLAY AND CLEARANCE BETWEEN BRAKE PEDAL AND FLOOR PANEL WITH PEDAL
DEPRESSED

Check the brake pedal free height from dash floor panel.

Adjust the height referring to the following specifications.

CAUTION:

When adjustable pedal equipped, During the pedal height
measurement, pedal must be in the front most position.

PFIA0423E

Brake pedal height (from dash panel top sur-
face)

199.5 - 209.5 mm (7.85 - 8.25 in)

Depressed pedal height [under a force of 490
N (50 kg, 110 lb) with engine running]

More than 120 mm (4.72 in)

or C

Clearance between bracket and threaded end
of ASCD cancel switch or stop lamp switch

0.74 - 1.96 mm (0.0291 - 0.0772 in)

Pedal play

3 - 11 mm (0.12 - 0.43 in)

BRAKE PEDAL

BR-7

Revision; 2004 April

2003 Murano

ADJUSTMENT

Loosen the stop lamp switch and ASCD cancel switch by turning
it counterclockwise by 45

Loosen lock nut (A) on the input rod, then turn input rod to adjust
the pedal to specified height, and tighten lock nut (A).

CAUTION:

Make sure the threaded end of the input rod stays inside the
clevis.

With the pedal pulled and held by hand, press the stop lamp
switch and ASCD cancel switch until its threaded end contacts
the bracket.

With the threaded end of the stop lamp switch and ASCD cancel
switch contacting the bracket, turn the switch clockwise by 45

to secure.

CAUTION:

Make sure that the clearance (C) between the bracket and
threaded end of the stop lamp switch is within the standard.

Check the pedal play.

CAUTION:

Make sure that the stop lamp goes off when the pedal is
released.

Start the engine to check the brake pedal depressed height.

Lock nut (A)

15.7 - 21.6 N·m (1.6 - 2. 2 kg-m, 12 - 15 in-lb)

PFIA0436E

BR-8

BRAKE PEDAL

Revision; 2004 April

2003 Murano

Removal and Installation

AFS0016T

COMPONENT PARTS LOCATION (NOT FOR ADJUSTABLE PEDAL)

Brake pedal assembly

Snap pin

Clip

Stop lamp switch

Pedal pad

Clevis pin

ASCD cancel switch

PFIA0401E

BRAKE PEDAL

BR-9

Revision; 2004 April

2003 Murano

COMPONENT PARTS LOCATION (ADJUSTABLE PEDAL)

REMOVAL

CAUTION:

●

Adjust mechanism (Drive wire, Drive motor) is not able to disassembly.

●

Before pedal drive cable removal, Pedals must be in the front must position. Because of keeping
the proper position between accelerator and brake pedal.

Remove front kick plate (driver side). Refer to

EI-32, "BODY SIDE TRIM"

Remove front body side welt (driver side). Refer to

EI-32, "BODY SIDE TRIM"

Remove instrument driver lower panel. Refer to

IP-10, "INSTRUMENT PANEL ASSEMBLY"

Remove dash side finisher (driver side). Refer to

EI-32, "BODY SIDE TRIM"

Remove parking pedal assembly. Refer to

PB-3, "Removal and Installation"

Disconnect accelerator pedal drive cable, drive motor harness connector. (With adjustable pedal)

Remove stop lamp switch and ASCD cancel switch from the pedal assembly.

Brake pedal assembly

Snap pin

Clip

Stop lamp switch

Pedal pad

Clevis pin

ASCD cancel switch

PFIA0402E

BR-10

BRAKE PEDAL

Revision; 2004 April

2003 Murano

Remove snap pin and clevis pin from input rod clevis.

Remove mounting nuts from pedal bracket, and remove pedal
assembly from vehicle.

INSPECTION AFTER REMOVAL

●

Check the clevis pin and resin stopper for damage and deforma-
tion. If a failure is detected, replace the clevis pin and resin stop-
per.

INSTALLATION

Note the following, and install in the reverse order of removal.

●

After installing the brake pedal assembly to the vehicle, adjust the brake pedal. Refer to

BR-6, "Inspection

and Adjustment"

PFIA0435E

SBR997

BRAKE FLUID

BR-11

Revision; 2004 April

2003 Murano

BRAKE FLUID

PFP:KN100

On-board Inspection

AFS0016U

LEVEL CHECK

●

Make sure the fluid level in the sub tank is within the standard
(between MAX and MIN lines).

●

Visually check around the reservoir tank and sub tank for fluid
leakage.

●

If fluid level is excessively low, check brake system for fluid leak-
age.

●

If brake warning lamp remains illuminated after parking lever is
released, check brake system for fluid leaks.

Drain and Refill

AFS0016V

CAUTION:

●

Refill with new brake fluid “DOT3”.

●

Never reuse drained brake fluid.

●

Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas wash it away with water immediately.

Connect a vinyl tube to air bleeder valve.

Depress the brake pedal, loosen the air bleeder valve, and grad-
ually remove the brake fluid.

Turn ignition switch off position and disconnect ABS actuator
and electric unit (control unit) connector or battery negative
cable.

Make sure there is no foreign material in the sub tank, and refill
with new brake fluid.

Rest foot on brake pedal. Loosen air bleeder valve. Slowly
depress pedal until it stops. Tighten air bleeder valve. Release
brake pedal. Repeat this process a few times, then pause to add
new brake fluid to master cylinder. Continue until new brake fluid
flows out.

Bleed Air. Refer to

BR-12, "Bleeding Brake System"

SBR451D

BRA0007D

PFIA0437E

BR-12

BRAKE FLUID

Revision; 2004 April

2003 Murano

Bleeding Brake System

AFS0016W

CAUTION:

While bleeding, pay attention to master cylinder fluid level.
1.

Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector or battery
negative cable.

Connect a vinyl tube to the rear right air bleeder valve.

Fully depress brake pedal 4 to 5 times.

With brake pedal depressed, loosen air bleeder valve to let the air out, and then tighten it immediately.

Repeat steps 3, 4 until no more air comes out.

Tighten air bleeder valve to specified torque.

In steps 2 to 6 below, with master cylinder sub tank filled at least half way, bleed air from the front left, rear
left, and front right tires, in that order.

Content .. 44 45 46 47 ..