Nissan Sentra. Manual — part 21
AV-76
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO WITHOUT BOSE]
SYSTEM
will then become active. Bluetooth
®
telephone functions can be turned off using the Nissan Voice Recognition
system.
Steering Switches
When buttons on the steering switches are pushed, the resistance in steering wheel audio control switch cir-
cuit changes, depending on which button is pushed. The Bluetooth
®
control unit uses this signal to perform
various functions while navigating through the voice recognition system.
The following functions can be performed using the steering switches:
• Initiate self-diagnosis of the Bluetooth
®
telephone system
• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume of calls
Microphone
The microphone is located in the roof console assembly. The microphone sends a signal to the Bluetooth
®
control unit. The microphone can be actively tested during self-diagnosis.
Audio Unit
The audio unit receives signals from the Bluetooth
®
control unit and sends audio signals to the speakers.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.
AV
DIAGNOSIS SYSTEM (AUDIO UNIT)
AV-77
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (AUDIO UNIT)
Description
INFOID:0000000009758843
The audio unit on board diagnosis performs the functions listed in the table below:
On Board Diagnosis Function
INFOID:0000000009758844
METHOD OF STARTING
1. Turn the ignition ON.
2. Turn the audio system OFF.
3. While pressing the preset 1 button, turn the volume control dial
clockwise or counterclockwise for 40 clicks or more. Shifting
from current screen to previous screen is performed by pressing
BACK button.
4. The trouble diagnosis initial screen is displayed, and Self Diag-
nosis or Confirmation/Adjustment can be selected.
SELF DIAGNOSIS MODE
Audio Unit Self Diagnosis
1. Select Self Diagnosis.
Mode
Description
Self Diagnosis
• Audio unit diagnosis.
• Diagnoses the connections across system components.
Confirmation/
Adjustment
Display Diagnosis
The following check functions are available: color tone check by color bar
display and white display, light and shade check by gray scale display.
Vehicle Signals
Diagnosis of signals can be performed for vehicle speed, lights, reverse,
EQ pin, destination and camera type.
Speaker Test
The connection of a speaker can be confirmed by test tone.
Error History
The system malfunction and the frequency when occurring in the past are
displayed. When the malfunctioning item is selected, the time and place
that the selected malfunction last occurred are displayed.
Camera System
Displayed but not used.
AV COMM Diagnosis
The communication condition of each unit of display audio system can be
monitored.
Delete Unit Connection Log
Erase the connection history of unit and error history.
Initialize Setting
Initializes the audio unit memory.
ALNIA1376ZZ
JSNIA0138GB
AV-78
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO WITHOUT BOSE]
DIAGNOSIS SYSTEM (AUDIO UNIT)
2. Self diagnosis screen is displayed. The bar graph visible in center of screen indicates progress of self
diagnosis.
3. Diagnosis results are displayed after the self diagnosis is com-
pleted. The unit names and the connection lines are color coded
according to the diagnostic results.
1: Control unit (audio unit) is displayed in red.
• Replace audio unit if Self Diagnosis did not run because control unit malfunction is indicated. The symptom is audio unit internal
error. Refer to
AV-122, "Removal and Installation"
.
• If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order
of priority: red > gray.
4. Comments of self diagnosis results can be viewed in the diagno-
sis result screen.
Audio Unit Self Diagnosis Results
AWNIA2832GB
Diagnosis results
Unit
Connection line
Normal
Green
Green
Connection malfunction
Gray
Yellow
Unit malfunction
1
Red
Green
JSNIA1870ZZ
Only Unit Part Is Displayed In Red
Screen switch
Description
Possible cause
Control unit
Malfunction is detected in audio unit power
supply and ground circuits.
• Audio unit power supply or ground cir-
cuits.
Refer to
.
• If no malfunction is detected in audio unit
power supply and ground circuits, re-
place audio unit. Refer to
.
AV
DIAGNOSIS SYSTEM (AUDIO UNIT)
AV-79
< SYSTEM DESCRIPTION >
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Audio Unit Confirmation/Adjustment
1. Select Confirmation/Adjustment.
2. Select each switch on the Confirmation/Adjustment screen to
display the relevant trouble diagnosis screen. Press the BACK
switch to return to the initial Confirmation/Adjustment screen.
Display Diagnosis
Vehicle Signals
A Connecting Cable Between Units Is Displayed In Yellow
Area with yellow connection lines
Description
Possible cause
Control unit
⇔ BT HF Unit
When one of the following is detected:
• malfunction is detected in Bluetooth
®
control unit power supply and ground cir-
cuits.
• malfunction is detected in AV communi-
cation circuits between audio unit and
Bluetooth
®
control unit.
• Bluetooth
®
control unit power supply or
ground circuits.
Refer to
TROL UNIT : Diagnosis Procedure"
• AV communication circuits between au-
dio unit and Bluetooth
®
control unit.
AWNIA2631GB
AWNIA2632GB
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