Infiniti EX35. Manual - part 62

 

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Infiniti EX35. Manual - part 62

 

 

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-29

< FUNCTION DIAGNOSIS >

[BASE 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 starts, a short beep will sound.)
• Shifting from the current screen to the previous screen is per-

formed by pressing the “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

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.

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 adjust-
ed.

Delete Unit Connection Log

Erase the connection history of unit and error history

Initialize Settings

Initializes AV control unit memory.

Mode

Description

JSNIA0137GB

JSNIA0138GB

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< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

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 the 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 an AV

control unit internal error. 

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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.

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The comments of the self-diagnosis results can be viewed with a
component in the diagnosis result screen.

SELF-DIAGNOSIS RESULTS

• The self-diagnosis mode allows the technician to diagnose the connection in the communication line

between the AV control unit and each unit, and the internal operation of AV control unit. 

• Because the start condition of the diagnosis function is a switch operation, the on board diagnosis function

cannot be started up if any malfunction is detected in the communication circuit between AV control unit and
multifunction switch. 

• Check the applicable display in the following table, and then repair the malfunctioning parts. 

Self-diagnosis result chart

JSNIA0139GB

Diagnosis results

Unit

Con-

nection 

line

Normal

Green

Green

Connection malfunction

Gray

Yellow

Unit malfunction 

Note

Red

Green

JSNIA0209GB

JSNIA0141GB

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-31

< FUNCTION DIAGNOSIS >

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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.

Diagnosis results

Description

Possible malfunction location / Action 

to take

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

AV control unit malfunction is detected.

Replace AV control unit.

NOTE:
When a control unit malfunction is detected (red in 
the unit display), connection malfunctions with oth-
er connection units may be displayed. 

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

Check AV control unit power supply 
and ground circuits. When detecting no 
malfunction in those components, re-
place AV control unit.

Malfunction is detected in the commu-
nication circuits between AV control 
unit and display unit.

Communication circuits between AV 
control unit and display unit.

When either one of the following 
items are detected:

•  Satellite radio tuner power supply or 

ground circuits malfunction are de-
tected.

• Malfunction is detected in the com-

munication circuits between AV con-
trol unit and satellite radio tuner.

• Malfunction is detected in the re-

quest signal circuit between AV con-
trol unit and satellite radio tuner.

• Satellite radio tuner power supply 

and ground circuits.

• Communication circuits between AV 

control unit and satellite radio tuner.

• Request signal circuit between AV 

control unit and satellite radio tuner.

A malfunction is detected in the camera 
connection recognition circuit between 
AV control unit and camera control unit.

Camera connection recognition circuit 
between AV control unit and camera 
control unit.

JPNIA0829GB

JPNIA0831GB

JPNIA0830GB

JPNIA0832GB

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< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

2.

Select each switch on the “Inspection & Adjustment Mode”
screen to display the relevant trouble diagnosis screen. Press
the “RETURN” switch to return to the initial Inspection & Adjust-
ment Mode screen.

Display Diagnosis

The tint of the color bar indication is as per the following list if a RGB signal error is detected.

Vehicle Signals

A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.

JSNIA0147GB

JSNIA0688GB

R (red) signal error

: Light blue (Cyan) tint

G (green) signal error

: Purple (Magenta) tint

B (blue) signal error

: Yellow tint

JSNIA0149GB

Diagnosis item

Display

Vehicle status

Remarks

Vehicle speed

ON

Vehicle speed > 0 km/h (0 MPH)

Changes in indication may be delayed. This is normal.

OFF

Vehicle speed = 0 km/h (0 MPH)

Parking brake

ON

Parking brake is applied.

OFF

Parking brake is released.

 

 

 

 

 

 

 

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