Infiniti QX56 (JA60). Manual - part 55

 

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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]

C

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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 

AV-40, "A/C 

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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