Nissan Versa Note. Instruction — part 20
AV-72
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO]
DIAGNOSIS SYSTEM (AUDIO UNIT)
DIAGNOSIS SYSTEM (AUDIO UNIT)
Description
INFOID:0000000009459952
The audio unit on board diagnosis performs the functions listed in the table below:
On Board Diagnosis Function
INFOID:0000000009459953
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.
ALNIA1517ZZ
JSNIA0138GB
AV
DIAGNOSIS SYSTEM (AUDIO UNIT)
AV-73
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO]
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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-118, "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
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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-74
< SYSTEM DESCRIPTION >
[DISPLAY AUDIO]
DIAGNOSIS SYSTEM (AUDIO UNIT)
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
AV
DIAGNOSIS SYSTEM (AUDIO UNIT)
AV-75
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A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Speaker Test
Select Speaker Test to display the Speaker Diagnosis screen. Press
Start to generate a test tone in a speaker. Press Start again to gener-
ate a test tone in the next speaker. Press End to stop the test tones.
Error History
The self diagnosis results are judged depending on whether any error occurs from when Self Diagnosis is
selected until the self diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self diagnosis start. Check the Error Record to detect any error
that may have occurred before the self diagnosis start because of this situation.
The frequency of occurrence is displayed in a count up manner. The actual count up method differs depending
on the error item.
Count up method A
• The counter is set to 40 if an error occurs. 1 is subtracted from the counter if the condition is normal at a next
ignition ON cycle.
• The counter lower limit is 1. The counter can be reset (no error record display) with the Delete log switch.
Count up method B
• The counter increases by 1 if an error occurs when ignition switch is ON. The counter will not decrease even
if the condition is normal at the next ignition ON cycle.
• The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error
record display) with the Delete log switch.
Error item
Some error items may be displayed simultaneously according to the cause. If some error items are displayed
simultaneously, the detection of the cause can be performed by the combination of display items
AWNIA2633GB
AWNIA2634GB
Display type of occurrence
frequency
Error history display item
Count up method A
AV communication line, control unit (AV)
Count up method B
Other than the above
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