Nissan Murano Z51. Manual - part 77

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-87

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

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Deletes any unit connection records and error records from the AV
control unit memory. (Clear the records of the unit that has been
removed)

Initialize Settings

Initializes the AV control unit memory.

CONSULT-III Function (MULTI AV)

INFOID:0000000005528478

CONSULT-III functions

CONSULT-III performs the following functions via communication with the AV control unit.

AV COMMUNICATION

When “AV communication” of “CAN Diag Support Monitor” is selected, the following function will be performed.

ECU IDENTIFICATION

The part number of AV control unit is displayed.

SELF DIAGNOSIS RESULT

• In CONSULT-III self-diagnosis, self-diagnosis results and error history are displayed collectively.
• The current malfunction indicates “CRNT”. The past malfunction indicates “PAST”.
• The timing is displayed as “0” if any of the error codes [U1000], [U1010], [U1300] and [U1310] is detected.

The counter increases by 1 if the condition is normal at the next ignition switch ON cycle.

Self-diagnosis Results Display Item

JSNIA0154GB

JSNIA0155GB

Diagnosis mode

Description

Ecu Identification

The part number of AV control unit can be checked.

Self Diagnostic Result

Performs a diagnosis on the AV control unit. A connection diagnosis for the communication cir-
cuit of the MULTI AV system and displays the current and past malfunctions collectively.

Data Monitor

The diagnosis of vehicle signal that is input to the AV control unit can be performed.

AV communication

AV&NAVI C/U

Displays the communication status from AV control unit to each unit as well as the error 
counter.

AUDIO

Displays the AV control unit communication status and the error counter.

Error item

Description

Possible malfunction factor/Action to take

CAN COMM CIRCUIT [U1000]

CAN communication malfunction is detect-
ed.

Refer to 

AV-93, "Description"

.

AV-88

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

CONTROL UNIT (CAN) [U1010]

CAN initial diagnosis malfunction is detect-
ed.

Replace the AV control unit

CONTROL UNIT (AV) [U1310]

AV communication circuit initial diagnosis 
malfunction is detected.

Cont Unit FLASH-ROM [U1200]

AV control unit malfunction is detected.

CAN CONT [U1216]

FRONT DISP CONN [U1243]

When either one of the following items are 
detected:
• front display unit power supply and 

ground circuits are malfunctioning.

• serial communication circuits between 

AV control unit and front display unit are 
malfunctioning.

• serial communication signal between AV 

control unit and front display unit is mal-
functioning.

• Front display unit power supply and 

ground circuits.

• Serial communication circuits between 

AV control unit and front display unit.

REAR DISP CONN [U1247]

When either one of the following items are 
detected:
• rear display unit power supply and 

ground circuits are malfunctioning.

• serial communication circuits between 

video distributor and rear display unit are 
malfunctioning.

• serial communication signal between 

video distributor and rear display unit is 
malfunctioning.

• Rear display unit power supply and 

ground circuits.

• Serial communication circuits between 

video distributor and rear display unit.

CAMERA CONT CONN [U1250]

Malfunction is detected in camera connec-
tion recognition circuit between AV control 
unit and camera control unit.

Camera-connection recognition circuit be-
tween AV control unit and camera control 
unit.

SAT CONN [U1255]

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

ground circuits are malfunctioning.

• serial communication circuits between 

AV control unit and satellite radio tuner 
are malfunctioning.

• serial communication or request signal 

between AV control unit and satellite ra-
dio tuner is malfunctioning.

• request signal circuit between AV control 

unit and satellite radio tuner is malfunc-
tioning.

• Satellite radio tuner power supply and 

ground circuits.

• Serial communication circuits between 

AV control unit and satellite radio tuner.

• Request signal circuit between AV con-

trol unit and satellite radio tuner.

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]

When either one of the following items are 
detected:
• multifunction switch power supply and 

ground circuits are malfunctioning.

• AV communication circuits between AV 

control unit and multifunction switch are 
malfunctioning.

• AV communication signal between AV 

control unit and multifunction switch is 
malfunctioning.

• Multifunction switch power supply and 

ground circuits.

• AV communication circuits between AV 

control unit and multifunction switch.

• AV COMM CIRCUIT [U1300]
• VIDEO DIST CONN [U1246]

When either one of the following items are 
detected:
• video distributor power supply and 

ground circuits are malfunctioning.

• AV communication signal between AV 

control unit and video distributor is mal-
functioning.

Video distributor power supply and ground 
circuits.

Error item

Description

Possible malfunction factor/Action to take

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-89

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

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• AV COMM CIRCUIT [U1300]
• DVD DECK CONN [U1248]

When either one of the following items are 
detected:
• DVD player power supply and ground cir-

cuits are malfunctioning.

• AV communication signal between AV 

control unit and DVD player is malfunc-
tioning.

DVD player power supply and ground cir-
cuits.

• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]

When either one of the following items are 
detected:
• camera control unit power supply and 

ground circuits are malfunctioning.

• AV communication signal between AV 

control unit and camera control unit is 
malfunctioning.

• AV communication circuits between mul-

tifunction switch and camera control unit 
is malfunctioning. (Without DVD enter-
tainment system models)

• Camera control unit power supply and 

ground circuits.

• AV communication circuits between mul-

tifunction switch and camera control unit. 
(Without DVD entertainment system 
models)

• AV COMM CIRCUIT [U1300]
• IPod CONN [U1254]

When either one of the following items are 
detected:
• iPod adapter power supply and ground 

circuits are malfunctioning.

• AV communication circuits between mul-

tifunction switch and iPod adapter are 
malfunctioning.

• AV communication signal between AV 

control unit and iPod adapter is malfunc-
tioning.

• iPod adapter power supply and ground 

circuits.

• AV communication circuits between mul-

tifunction switch unit and iPod adapter.

• AV COMM CIRCUIT [U1300]
• HAND FREE CONN [U1256]

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

ground circuits are malfunctioning.

• AV communication circuits between cam-

era control unit and TEL adapter unit are 
malfunctioning.

• AV communication signal between AV 

control unit and TEL adapter unit is mal-
functioning.

• TEL adapter unit power supply and 

ground circuits.

• AV communication circuits between cam-

era control unit and TEL adapter unit.

• AV communication circuits between mul-

tifunction switch and TEL adapter unit. 
(without rear view camera models)

• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN [U1252]

• HAND FREE CONN [U1256]

*

When either one of the following items are 
detected:
• AV communication circuits between mul-

tifunction switch and camera control unit 
are malfunctioning. (without DVD player 
models)

• AV communication circuits between DVD 

player and camera control unit are mal-
functioning. (with DVD player models)

• AV communication circuits between mul-

tifunction switch and camera control unit. 
(without DVD player models)

• AV communication circuits between DVD 

player and camera control unit. (with 
DVD player models)

• AV COMM CIRCUIT [U1300]
• DVD DECK CONN [U1248]
• REAR CAMERA LAN CONN [U1252]
• HAND FREE CONN [U1256]

Malfunction is detected in AV communica-
tion circuits between video distributor and 
DVD player.

AV communication circuits between video 
distributor and DVD player.

• AV COMM CIRCUIT [U1300]
• VIDEO DIST CONN [U1246]
• DVD DECK CONN [U1248]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]
• HAND FREE CONN [U1256]

Malfunction is detected in AV communica-
tion circuits between multifunction switch 
and iPod adapter.

AV communication circuits between multi-
function switch and iPod adapter.

• AV COMM CIRCUIT [U1300]
• VIDEO DIST CONN [U1246]
• DVD DECK CONN [U1248]
• REAR CAMERA LAN CONN [U1252]
• HAND FREE CONN [U1256]

Malfunction is detected in AV communica-
tion circuits between multifunction switch 
and video distributor.

AV communication circuits between multi-
function switch and video distributor.

Error item

Description

Possible malfunction factor/Action to take

AV-90

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

NOTE:

*: Non-equipped item is not displayed.

DATA MONITOR

ALL SIGNALS

• Displays the status of the following vehicle signals inputted into the AV control unit.
• For each signal, the actual signal can be compared the condition recognized on the system.

SELECTION FROM MENU

Allows the technician to select which vehicle signals should be displayed and displays the status of the
selected vehicle signals.

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]

• IPod CONN [U1254]

*

• HAND FREE CONN [U1256]

*

When either one of the following items are 
detected:
• AV communication circuits between AV 

control unit and the branch point multi-
function switch.

• AV communication circuits are malfunc-

tioning.

• AV communication circuits between AV 

control unit and the branch point multi-
function switch.

• Check and repair the short circuit in AV 

communication circuits.

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• VIDEO DIST CONN [U1246]
• DVD DECK CONN [U1248]
• REAR CAMERA LAN CONN [U1252]
• IPod CONN [U1254]
• HAND FREE CONN [U1256]

Error item

Description

Possible malfunction factor/Action to take

Display Item

Dis-
play

Vehicle status

Remarks

VHCL SPD SIG

On

Vehicle speed >0 km/h (0 MPH)

Changes in indication may be delayed. This is nor-
mal.

Off

Vehicle speed =0 km/h (0 MPH)

PKB SIG

On

Parking brake is applied.

Off

Parking brake is released.

ILLUM SIG

On

Light switch ON

—

Off

Light switch OFF

IGN SIG

On

Ignition switch ON

Off

Ignition switch in ACC position

REV SIG

On

Shift the selector lever to the “R” posi-
tion

Changes in indication may be delayed. This is nor-
mal.

Off

Shift the selector lever other than the 
“R” position

Item to be selected

Description

VHCL SPD SIG

The same as when “ALL SIGNALS” 
is selected.

PKB SIG

ILLUM SIG

IGN SIG

REV SIG