Infiniti QX56 (JA60). Manual — part 55
AV-28
< FUNCTION DIAGNOSIS >
[AUDIO SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “SETTING” button, turn the volume control
dial counterclockwise 30 clicks or more.
CONFIRMATION/
ADJUSTMENT
Display diagnosis
Color spectrum bar Color tone of the screen can be checked by the display of a color bar.
Gradation bar
Shading of the screen can be checked by the display of a gray scale.
Touch panel
• Touch panel calibration
• Touch panel response check
Vehicle signals
The following vehicle signals are analyzed: Vehicle speed signal, park-
ing brake signal, light signal, ignition switch signal, and reverse signal.
Speaker test
Connection can be checked by sending a test tone to each speaker.
Navigation
Steering angle ad-
justment
Confirm/adjust the steering angle when there is a difference between
the displayed vehicle mark turning angle and actual.
Speed calibration
Confirm/adjust the speed calibration when there is a difference between
the displayed vehicle mark location and actual.
XM SAT subscrip-
tion status
Check the subscription status of the XM NAV Traffic subsription.
Error history
Diagnosis results previously stored in the memory are displayed in this
mode.
Synchronize FES clock
Turns FES (Familly Entertainment System) clock synchronization func-
tion ON/OFF.
Vehicle CAN diagnosis
The transmitting/receiving of CAN communication can be monitored.
AV COMM diagnosis
The transmitting/receiving of AV communication can be monitored.
Handsfree phone
Handsfree volume
adjustment
Adjust handsfree volume (low, medium, high).
Voice microphone
test
Test microphone operation.
Delete handsfree
memory
Erase handsfree system memory.
Bluetooth
Confirm/Change
passkey
Confirm and change the Bluetooth passkey
Confirm/Change
device name
Confirm and change a device name stored in Bluetooth.
SAT
Change channel
Any necessary channels required to recieve traffic information from the
satellite radio system can be set.
Change applica-
tion ID
Any application ID’s required to recieve traffic information from the sat-
ellite radio system can be set.
Diag
Not used.
Delete unit connection log
Erase the error history and connection history of the unit.
Initialize settings
All audio settings are reset to default levels.
Mode
Description
ALNIA0446GB
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-29
< FUNCTION DIAGNOSIS >
[AUDIO SYSTEM]
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4. The initial trouble diagnosis screen will be displayed, and items
“Self-Diagnosis” and “Confirmation/Adjustment” can be
selected.
SELF-DIAGNOSIS
1. Perform self-diagnosis by selecting “Self-Diagnosis”.
• Self-diagnosis subdivision screen is displayed, and the self-
diagnosis mode starts.
• A bar graph visible on the center of the self-diagnosis subdivi-
sion screen indicates progress of the trouble diagnosis.
NOTE:
Self-diagnosis requires approximately 10 seconds to complete.
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 AV control unit is displayed in red.
• If multiple malfunctions occur at the same time for a single unit, the screen switch colors are determined according to the follow-
ing order of priority: red > yellow > gray.
3. Select a component on the “Self-Diagnosis” screen and com-
ments for the diagnosis results will be shown.
Self-Diagnosis Results
ALNIA0211GB
ALNIA0210GB
Diagnosis results
Unit
Connection
line
Normal
Green
Green
Connection malfunction
Gray
Yellow
Unit malfunction
Note
Red
Green
ALNIA0209GB
ALNIA0208GB
AV-30
< FUNCTION DIAGNOSIS >
[AUDIO SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Area with yellow connection lines
Description
Possible malfunction location / Action
to take
AV control unit malfunction is detect-
ed
Replace the AV control unit. Refer to
AV-169, "Removal and Installation"
Poor connection is detected for the
display unit
• Harness or connector
• AV control unit
• Display unit
Switch malfunction is dectected
Perform A/C and AV switch assembly
diagnostics. Refer to
AND AV SWITCH ASSEMBLY : Com-
ponent Function Check"
.
Poor connection is detected for the
DVD player.
• Harness or connector
• AV control unit
• DVD player
ALNIA0214GB
ALNIA0207GB
ALNIA0212GB
ALNIA0213GB
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-31
< FUNCTION DIAGNOSIS >
[AUDIO SYSTEM]
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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 item on the “Confirmation/Adjustment” mode screen
to display the relevant trouble diagnosis screen. Touch “BACK”
on the display or press the “BACK” button to return to the initial
Confirmation/Adjustment Mode screen.
Poor connection is dected for the
GPS antenna
• Harness or connector
• AV control unit
• GPS antenna
Poor connection is detected for the
rear camera control unit.
• Harness or connector
• AV control unit
• Rear camera control unit
Poor connection is detected for the
satellite radio tuner.
• Harness or connector
• AV control unit
• Satellite radio tuner
Area with yellow connection lines
Description
Possible malfunction location / Action
to take
ALNIA0215GB
ALNIA0217GB
ALNIA0216GB
ALNIA0218GB
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