Infiniti G37 Coupe. Manual — part 96
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-137
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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STARTING PROCEDURE
1.
Start the engine.
2.
Turn the audio system OFF.
3.
While pressing the “SETTING” button, turn the volume control
dial clockwise or counterclockwise for 40 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)
• Shifting from current screen to previous screen is performed
by pressing “BACK” button.
4.
The trouble diagnosis initial screen is displayed, and then the
items of “Self Diagnosis” and “Confirmation/Adjustment” can be
selected.
SELF-DIAGNOSIS MODE
1.
Start the self-diagnosis function and select “Self-diagnosis”.
-
Self-diagnosis subdivision screen is displayed, and the self-
diagnosis mode starts.
-
The bar graph visible on the center of the self-diagnosis subdivi-
sion screen indicates progress of the trouble diagnosis.
Confirmation/
Adjustment
Display Diagnosis
The confirmations of the tint with the color spectrum bar display and
shading of color with the gradation bar display can be performed.
Vehicle Signals
Diagnosis of signals can be performed for vehicle speed, parking brake,
lights, ignition switch, and reverse.
Speaker Test
The connection of a speaker can be confirmed by test tone.
Climate Control
Start auto air conditioner system self-diagnosis.
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.
Vehicle CAN Diagnosis
The transmitting/receiving of CAN communication can be monitored.
AV COMM Diagnosis
The communication condition of each unit of Multi AV system can be
monitored.
Delete Unit Connection Log
Erase the connection history of unit and error history
Initialize Settings
Initializes the AV control unit memory.
Mode
Description
JSNIA0137GB
JSNIA0138GB
JSNIA0139GB
AV-138
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
2.
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.
NOTE:
• Only the control unit (AV control unit) is displayed in red.
• Replace AV control unit if “Self-Diagnosis did not run because of a control unit malfunction” is indicated. The symptom is AV con-
trol unit internal error. Refer to
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If multiple errors occur at the same time for a single unit, the screen switch colors are determined accord-
ing to the following order of priority: red > gray.
-
The comments of the self-diagnosis results can be viewed with a
component in the diagnosis result screen.
Detection range of self-diagnosis mode
• The self-diagnosis mode allows the technician to diagnose the connection in the communication line
between AV control unit and each unit and the internal operation of the AV control unit.
• Because the start condition of diagnosis function is a switch operation, the on board diagnosis function can-
not be started up if any malfunction is detected in the communication circuit between AV control unit and
multifunction switch.
Diagnosis results
Unit
Con-
nection
line
Normal
Green
Green
Connection malfunction
Gray
Yellow
Unit malfunction
Note
Red
Green
JSNIA0601GB
JSNIA0141GB
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-139
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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NOTE:
Onboard self
−
diagnosis cannot be started when an error occurs on the dotted
−
line part above.
SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunctioning parts.
Self-diagnosis result chart
JSNIA0565GB
Area with yellow connection lines
Description
Possible malfunction location / Action
to take
AV control unit malfunction is detected.
Replace the AV control unit.
“Self-Diagnosis did not run because of a control unit
malfunction”
• Malfunction is detected in communi-
cation circuit between AV control unit
and display unit.
• Malfunction is detected in communi-
cation signal between AV control unit
and display unit.
Communication circuit between AV
control unit and display unit.
JSNIA0602GB
JPNIA0463GB
AV-140
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
CONFIRMATION/ADJUSTMENT MODE
1.
Start the diagnosis function and select “Confirmation/Adjustment”. The confirmation/adjustment mode
indicates where each item can be checked or adjusted.
2.
Select each switch on the “Confirmation/Adjustment Mode”
screen to display the relevant trouble diagnosis screen. Press
the “RETURN” switch to return to the initial Confirmation/Adjust-
ment Mode screen.
• Satellite radio tuner power supply
and ground circuit malfunction is de-
tected.
• Malfunction is detected in communi-
cation circuits between AV control
unit and satellite radio tuner.
• Malfunction is detected in communi-
cation signal between AV control unit
and satellite radio tuner.
• Malfunction is detected in request
signal circuit between AV control unit
and satellite radio tuner.
• Satellite radio tuner power supply
and ground circuit.
• Communication circuit between AV
control unit and satellite radio tuner.
• Request signal circuit between AV
control unit and satellite radio tuner.
• TEL adapter unit power supply and
ground circuit malfunction is detect-
ed.
• Malfunction is detected in AV com-
munication circuit between AV con-
trol unit and TEL adapter unit.
• Malfunction is detected in AV com-
munication signal between AV con-
trol unit and TEL adapter unit.
• TEL adapter unit power supply and
ground circuit.
• AV communication circuit between
AV control unit and TEL adapter unit.
• iPod adapter power supply and
ground circuit malfunction is detect-
ed.
• Malfunction is detected in AV com-
munication circuit between AV con-
trol unit and iPod adapter.
• Malfunction is detected in AV com-
munication signal between AV con-
trol unit and iPod adapter.
• iPod adapter power supply and
ground circuit.
• AV communication circuit between
AV control unit and iPod adapter.
Area with yellow connection lines
Description
Possible malfunction location / Action
to take
JSNIA0603GB
JSNIA0604GB
JSNIA0605GB
JSNIA0147GB
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