Nissan Murano. Manual — part 63
AV-30
< WIRING DIAGRAM >
[BASE AUDIO WITHOUT COLOR DISPLAY]
BASE AUDIO WITHOUT COLOR DISPLAY
JRNWC8924GB
AV
BASE AUDIO WITHOUT COLOR DISPLAY
AV-31
< WIRING DIAGRAM >
[BASE AUDIO WITHOUT COLOR DISPLAY]
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JRNWC8925GB
AV-32
< SYMPTOM DIAGNOSIS >
[BASE AUDIO WITHOUT COLOR DISPLAY]
AUDIO SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
AUDIO SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000009721566
Symptoms
Check items
Possible malfunction location / Action to take
Audio unit does not start.
—
Audio unit power supply and ground circuit.
Refer to
AV-19, "AUDIO UNIT : Diagnosis Procedure"
No sound comes out.
No sound from all speakers.
Audio unit power supply and ground circuit.
Refer to
AV-19, "AUDIO UNIT : Diagnosis Procedure"
Only a certain speaker (front right,
front left, rear right, or rear left, etc.)
does not output sound.
• Poor connector connection of speaker.
• Sound signal circuit malfunction between audio unit and
speaker.
• Malfunction in speaker.
• Malfunction in audio unit.
Noise is mixed with audio.
Noise comes out from all speakers.
Malfunction in audio unit.
Noise comes out only from a certain
speaker (front right, front left, rear
right, or rear left, etc.).
• Poor connector connection of speaker.
• Sound signal circuit malfunction between audio unit and
speaker.
• Malfunction in speaker.
• Poor installation of speaker (e.g. backlash and looseness)
• Malfunction in audio unit.
Noise is mixed with radio only
(when the car hits a bump or while
driving over bad roads).
• Poor connector connection of antenna or antenna feeder.
• Loose antenna base mounting nut. Refer to
Radio is not received or poor re-
ception.
• Other audio sounds are normal.
• Any radio cannot be received or
poor reception is caused even af-
ter moving to a service area with
good reception (e.g. a place with
clear view and no obstacles gen-
erating external noises).
• Antenna amp. ON signal circuit malfunction.
• Poor connector connection of antenna or antenna feeder.
• Loose antenna base mounting nut. Refer to
Audio display unit does not
work.
—
• Audio display unit power supply and ground circuits.
• AV communication circuits between audio unit and audio
display unit.
AV
NORMAL OPERATING CONDITION
AV-33
< SYMPTOM DIAGNOSIS >
[BASE AUDIO WITHOUT COLOR DISPLAY]
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NORMAL OPERATING CONDITION
Description
INFOID:0000000009721567
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
RELATED TO AUDIO
• The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.
• The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check that noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment. Then determine the cause.
NOTE:
• CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be incor-
rectly mastered by the customer on a computer.
• Check that the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the red book Compact
Disc Standard and may not play.
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
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