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Nissan Murano Z51. Manual - part 74

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-75

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

NOTE:

*: On-board self-diagnosis is not supported. Only CONSULT-III is supported.

STARTING PROCEDURE

Start the engine.

Turn the audio system OFF.

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 the “BACK” button.

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 confirmation of the tint with the color spectrum bar display and shad-
ing 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

Not used.

Error History

System malfunctions 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.

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.

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

JSNIA1073GB

JSNIA0138GB

AV-76

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Start the self-diagnosis function and select “Self-diagnosis”.
NOTE:
Because the start condition of diagnosis function is a switch
operation, the on board diagnosis function cannot start up if any
malfunction is detected in the AV communication circuit between
AV control unit and multifunction switch.

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.

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

AV-534, "Exploded View"

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.

SELF-DIAGNOSIS RESULTS

Check the applicable display at the following table, and then repair the malfunctioning parts.
NOTE:
Because the start condition of diagnosis function is a switch operation, the on board diagnosis function cannot
be started up if any malfunction is detected in the AV communication circuit between AV control unit and multi-
function switch.

Self-diagnosis Result Chart

JSNIA0139GB

Diagnosis results

Unit

Con-

nection

line

Normal

Green

Connection malfunction

Gray

Yellow

Unit malfunction

Note

Red

Green

JSNIA1071GB

JSNIA0141GB

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-77

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

Diagnosis results

Detection logic

Possible malfunction location / Action

to take

NOTE:
When a control unit malfunction is detected (red in
unit display), connection malfunctions with other
connection unit may be displayed.

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

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

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

When either one of the following items
are detected:
• serial communication circuits be-

tween AV control unit and front dis-
play unit are malfunctioning.

• serial communication signal between

AV control unit and front display unit
is malfunctioning.

Serial communication circuits between
AV control unit and front display unit.

When either one of the following items
are detected:
• satellite radio tuner power supply

and ground circuits are malfunction-
ing.

• serial communication circuits be-

tween AV control unit and satellite ra-
dio tuner are malfunctioning.

• serial communication or request sig-

nal between AV control unit and sat-
ellite radio tuner is malfunctioning.

• request signal circuit between AV

control unit and satellite radio tuner is
malfunctioning.

• Satellite radio tuner power supply

and ground circuits.

• Serial communication circuits be-

tween AV control unit and satellite ra-
dio tuner.

• Request signal circuit between AV

control unit and satellite radio tuner.

JSNIA1077GB

JSNIA1078GB

JSNIA1079GB

AV-78

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

When either one of the following items
are detected:
• TEL adapter unit power supply and

ground circuits are malfunctioning.