Nissan Frontier D40. Manual — part 22
AV-80
< SYMPTOM DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
AUDIO SYSTEM
SYMPTOM DIAGNOSIS
AUDIO SYSTEM
Symptom Table
INFOID:0000000005274914
AUDIO SYSTEM
CD
SATELLITE RADIO
HANDS-FREE PHONE
Symptom
Possible cause
Reference page
Inoperative
• Audio unit power circuit
• Audio unit
•
•
Steering wheel audio control switch does not operate
• Steering wheel audio control switch
• Audio unit
•
•
All speakers do not sound
• Audio unit
• Audio unit power circuit
•
•
One or several speakers do not sound
• Front door speaker
• Front tweeter
• Rear door speaker
•
•
•
Symptom
Possible cause
Reference page
CD cannot be inserted.
Audio unit
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
Symptom
Possible cause
Reference page
Inoperative
• Satellite radio tuner power or ground circuit
• Satellite radio tuner communication circuit
• Satellite radio tuner
•
•
•
Right or left channel does not sound
• Satellite radio tuner right channel audio signal circuit
• Satellite radio tuner left channel audio signal circuit
• Satellite radio tuner
•
Symptom
Possible cause
Reference page
Inoperative
• Bluetooth control unit power circuit
• Bluetooth control unit
•
•
Steering wheel audio switch does not operate
• Steering wheel audio control switch
• Bluetooth control unit
•
•
Voice activated control does not activate
• Microphone
• Steering wheel audio control switch
• Bluetooth control unit
•
•
•
AV
NORMAL OPERATING CONDITION
AV-81
< SYMPTOM DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
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NORMAL OPERATING CONDITION
Description
INFOID:0000000005274915
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 which 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 determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
Type of Noise and Possible Cause
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.
• 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
AV-82
< PRECAUTION >
[PREMIUM AUDIO (KING CAB)]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005568721
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 Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
AV
PREPARATION
AV-83
< PREPARATION >
[PREMIUM AUDIO (KING CAB)]
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PREPARATION
PREPARATION
Commercial Service Tools
INFOID:0000000005274917
Tool name
Description
Power tool
Loosening bolts and nuts
PBIC0191E
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