Infiniti G37 Coupe. Manual - part 159

 

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Infiniti G37 Coupe. Manual - part 159

 

 

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-389

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH 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.

Confirmation/

Adjustment

Display Diagnosis

The following check functions are available: color tone check by color 
bar display, light and shade check by gray scale display and touch pan-
el calibration response check.

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.

Navigation

Steering Angle Ad-
justment

When there is a difference between the actual turning angle and the ve-
hicle mark turning angle, it can be adjusted.

Speed Calibration

When there is a difference between the current location mark and the 
actual location, it can be adjusted.

XM SAT Subscrip-
tion Status

The XM NavTraffic subscription status can be checked. 

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.

Synchronizer FES clock

–

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.

Handsfree Phone

The received volume adjustment of hands-free phone, microphone 
speaker check, and erase memory can be performed.

Camera Cont.

The signal connected to camera control unit can be checked and the 
guiding line position that overlaps rear view camera image can be ad-
justed.

Bluetooth

The passkey and the device name can be checked and changed.

SAT

Change Channel

Any necessary channels required to receive traffic information from the 
satellite radio system can be set.

Change Application 
ID

Any application ID's required to receive traffic information from the sat-
ellite radio system can be set.

Diag

Not used.

Delete Unit Connection Log

Erase the connection history of unit and error history.

Initialize Settings

Initializes the AV control unit memory.

Mode

Description

JSNIA0060GB

AV-390

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

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”.

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Self-diagnosis subdivision screen is displayed, and the self-
diagnosis mode starts.

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The bar graph visible on the center of the self-diagnosis subdivi-
sion screen indicates progress of the trouble diagnosis.

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 control unit internal error.
Refer to 

AV-608, "Exploded View"

.

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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.

JSNIA0061GB

JSNIA0062GB

Diagnosis results

Unit

Con-

nection 

line

Normal

Green

Green

Connection malfunction

Gray

Yellow

Unit malfunction 

Note

Red

Green

JSNIA0593GB

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-391

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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.

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

JSNIA0064GB

JSNIA0561GB

AV-392

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Area with yellow connection lines

Description

Possible malfunction location / Action 

to take

AV control unit malfunction is detect-
ed.

AV control unit is malfunction.

“Self-Diagnosis did not run because of a control unit 
malfunction”

Malfunction is detected in AV control 
unit power supply and ground circuits.

• AV control unit power supply and 

ground circuits.

• When there is no malfunction, AV 

control unit is malfunctioning.

JSNIA0594GB

JSNIA0595GB

 

 

 

 

 

 

 

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