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Nissan Murano Z51 (2008 year). Manual - part 16

AUDIO UNIT

AV-29

< ECU DIAGNOSIS >

[BASE AUDIO]

JCNWM1835GB

Revision: 2008 October

2009 Murano

AV-30

< ECU DIAGNOSIS >

[BASE AUDIO]

AUDIO UNIT

JCNWM1836GB

Revision: 2008 October

2009 Murano

AUDIO UNIT

AV-31

< ECU DIAGNOSIS >

[BASE AUDIO]

JCNWM1837GB

Revision: 2008 October

2009 Murano

AV-32

< SYMPTOM DIAGNOSIS >

[BASE AUDIO]

AUDIO SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

AUDIO SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000003470195

RELATED TO AUDIO

Trouble diagnosis chart by symptom

RELATED TO STEERING SWITCH

Trouble diagnosis chart by symptom

Symptoms

Check items

Possible malfunction location / Action to take

Audio sound is not heard.

No sound from all speakers.

Audio unit malfunction.
Refer to

AV-37, "Exploded View"

There is no sound from one of speakers.

Sound signal malfunction between audio unit and speaker
on the side where there is no sound.

AM/FM radio is not received.

Other audio sounds are normal.

• Antenna amp. ON signal circuit.
• Antenna feeder.
• Rod antenna.
• Antenna base.

Audio display does not work.

—

• Audio display power supply and ground circuits.
• AV communication circuits between audio unit and au-

dio display.

Symptoms

Inspection location / Probable malfunction location

None of the steering switch operations work.

Steering switch signal GND circuit.
Refer to

AV-23, "Diagnosis Procedure"

Only specified switch cannot be operated.

Steering switch.
Refer to

AV-42, "Exploded View"

“SOURCE”, “MENU UP”, “MENU DOWN” switches of steer-
ing switch are not operational.

Steering switch signal A circuit.
Refer to

AV-19, "Diagnosis Procedure"

”VOL UP“, “VOL DOWN” switches of steering switch are not
operational.

Steering switch signal B circuit.
Refer to

AV-21, "Diagnosis Procedure"

Revision: 2008 October

2009 Murano

NORMAL OPERATING CONDITION

AV-33

< SYMPTOM DIAGNOSIS >

[BASE AUDIO]

NORMAL OPERATING CONDITION

Description

INFOID:0000000003465389

NOTE:
• Audio operation information, refer to Owner's Manual.
• The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference,

etc.).

NOISE

The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
• Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-

tains or buildings blocking the signal.

• Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the

antenna at a different time from the waves that reflect off mountains or buildings.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and then determine the cause.
NOTE:
The source of the noise can be easily found by listening to the noise while removing the fuses of electrical
components, one by one.

Types of Noise and Possible Causes

Occurrence condition

Possible cause

Occurs only when engine is ON.

A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.

• Ignition components

The occurrence of the noise is linked with the operation of the fuel pump.

• Fuel pump condenser

Noise only occurs when various
electrical components are oper-
ating.

A cracking or snapping sound occurs with the op-
eration of various switches.

• Relay malfunction, audio unit malfunction

The noise occurs when various motors are operat-
ing.

• Motor case ground
• Motor

The noise occurs constantly, not just under certain conditions.

• Rear defogger coil malfunction
• Open circuit in printed heater
• Poor ground of antenna feeder line

A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively.

• Ground wire of body parts
• Ground due to improper part installation
• Wiring connections or a short circuit

Revision: 2008 October

2009 Murano

AV-34

< PRECAUTION >

[BASE AUDIO]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000003671426

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 AIRBAG” and “SEAT BELT” of this
Service Manual.

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 “SRS AIRBAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

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

When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury.
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.

Precaution for Trouble Diagnosis

INFOID:0000000003509002

AV COMMUNICATION SYSTEM

• Do not apply voltage of 7.0 V or higher to the measurement terminals.
• Use the tester with its open terminal voltage at 7.0 V or less.
• Turn ignition switch OFF and disconnect the battery cable from the negative terminal before checking the cir-

cuit.

Precaution for Harness Repair

INFOID:0000000003509003

AV COMMUNICATION SYSTEM

• Solder the repaired parts, and wrap with tape. [Frays of twisted line

must be within 110 mm (4.33 in).]

PKIA0306E

Revision: 2008 October

2009 Murano

PRECAUTIONS

AV-35

< PRECAUTION >

[BASE AUDIO]

• Do not perform bypass wire connections for the repair parts. (The

spliced wire will become separated and the characteristics of
twisted line will be lost.)

PKIA0307E

Revision: 2008 October

2009 Murano

AV-36

< PREPARATION >

[BASE AUDIO]

PREPARATION

PREPARATION

Commercial Service Tools

INFOID:0000000003509004

Tool name

Description

Power tool

Loosening screws

PBIC0191E

Revision: 2008 October

2009 Murano

AUDIO UNIT

AV-37

< ON-VEHICLE REPAIR >

[BASE AUDIO]

ON-VEHICLE REPAIR

AUDIO UNIT

Exploded View

INFOID:0000000003509006

REMOVAL

Refer to

IP-11, "Exploded View"

DISASSEMBLY

Removal and Installation

INFOID:0000000003509007

REMOVAL

Remove cluster lid C lower. Refer to

IP-11, "Exploded View"

Remove instrument stay cover LH and instrument stay cover RH Refer to

IP-11, "Exploded View"

Remove audio unit with an A/C auto amp. as a single unit from the body.

Remove bracket screws, and then remove audio unit.

INSTALLATION

Install in the reverse order of removal.

Audio unit

Bracket LH

A/C auto amp.

Bracket RH

JPNIA0770ZZ

Revision: 2008 October

2009 Murano

AV-38

< ON-VEHICLE REPAIR >

[BASE AUDIO]

AUDIO DISPLAY

AUDIO DISPLAY

Exploded View

INFOID:0000000003509008

Removal and Installation

INFOID:0000000003509009

REMOVAL

Remove center ventilator assembly. Refer to

IP-11, "Exploded View"

Remove audio display unit and A/C display with bracket as a
single unit (1).

Remove bracket screws, and then remove audio display unit.

INSTALLATION

Install in the reverse order of removal.

Audio display unit

Bracket

A/C display

Front cover

JPNIA0771ZZ

JPNIA0772ZZ

Revision: 2008 October

2009 Murano

FRONT DOOR SPEAKER

AV-39

< ON-VEHICLE REPAIR >

[BASE AUDIO]

FRONT DOOR SPEAKER

Exploded View

INFOID:0000000003509010

Removal and Installation

INFOID:0000000003509011

REMOVAL

Remove front door finisher. Refer to

INT-11, "FRONT DOOR FINISHER : Exploded View"

Remove front door speaker screws, then disconnect front door speaker connector and remove front door
speaker.

INSTALLATION

Install in the reverse order of removal.

JPNIA0773ZZ

Front door speaker

Revision: 2008 October

2009 Murano

AV-40

< ON-VEHICLE REPAIR >

[BASE AUDIO]

REAR DOOR SPEAKER

REAR DOOR SPEAKER

Exploded View

INFOID:0000000003509012

Removal and Installation

INFOID:0000000003509013

REMOVAL

Remove rear door finisher. Refer to

INT-15, "REAR DOOR FINISHER : Exploded View"

Remove rear door speaker screws, then disconnect rear door speaker connector and remove rear door
speaker.

INSTALLATION

Install in the reverse order of removal.

JPNIA0774ZZ

Rear door speaker

Revision: 2008 October

2009 Murano

FRONT SQUAWKER

AV-41

< ON-VEHICLE REPAIR >

[BASE AUDIO]

FRONT SQUAWKER

Exploded View

INFOID:0000000003509014

Removal and Installation

INFOID:0000000003509015

REMOVAL

Remove speaker grille. Refer to

IP-11, "Exploded View"

Remove front squawker screws, lift up the front squawker and disconnect front squawker connector. Then
remove the front squawker.

INSTALLATION

Install in the reverse order of removal.

JPNIA0775ZZ

Front squawker

Revision: 2008 October

2009 Murano

AV-42

< ON-VEHICLE REPAIR >

[BASE AUDIO]

STEERING SWITCH

STEERING SWITCH

Exploded View

INFOID:0000000003509028

Refer to

ST-15, "Exploded View"

Removal and Installation

INFOID:0000000003509029

REMOVAL

Refer to

ST-15, "Removal and Installation"

INSTALLATION

Install in the reverse order of removal.

Revision: 2008 October

2009 Murano

ROOF ANTENNA

AV-43

< ON-VEHICLE REPAIR >

[BASE AUDIO]

ROOF ANTENNA

Exploded View

INFOID:0000000003509050

Refer to

GI-4, "Components"

for symbols in the figure.

Removal and Installation

INFOID:0000000003509051

REMOVAL

Remove headlining assembly (rear) to secure work space between vehicle and headlining. Refer to

INT-

25, "NORMAL ROOF : Exploded View"

[without sunroof] or

INT-29, "SUNROOF : Exploded View"

[with

sunroof].

Disconnect AM/FM main connector.

Remove antenna base nut, and then remove antenna base from roof panel.

INSTALLATION

Install in the reverse order of removal.

CAUTION:

Be careful about tightening torque. When the antenna base mounting nut tightening torque is loose,
the antenna sensitivity becomes poor, and when it is excessive, the roof panel may be deformed.

JPNIA0776ZZ

Rod antenna

Antenna base

Antenna base mounting nut

: 6.5 N·m (0.66 kg-m, 58 in-lb)

Revision: 2008 October

2009 Murano

AV-44

< ON-VEHICLE REPAIR >

[BASE AUDIO]

ANTENNA FEEDER (RADIO)

ANTENNA FEEDER (RADIO)

Harness Layout

INFOID:0000000003509052

JPNIA0777GB

Revision: 2008 October

2009 Murano

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