Nissan Murano Z51. Manual - part 79

 

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Nissan Murano Z51. Manual - part 79

 

 

AV

U1310 AV CONTROL UNIT

AV-95

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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U1310 AV CONTROL UNIT

Description

INFOID:0000000005528486

Replace the AV control unit if this DTC is displayed. Refer to 

AV-534, "Exploded View"

.

DTC Logic

INFOID:0000000005528487

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each control 

unit by communication. It operates each system according to communication 
signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-

munication to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• The camera image signal is input from the camera control unit. The AV control 

unit outputs camera image signal to the front display unit.

• BOSE amp. ON signal and sound signal are transmitted to BOSE amp.
• Power (signal VCC and inverter VCC) is transmitted to front display.

Without DVD entertainment system

• Auxiliary image and auxiliary sound signals are input from the auxiliary input 

jacks.
With DVD entertainment system

• Composite image signal (auxiliary and DVD images) is input from the video 

distributor.

• Sound signal (DVD and auxiliary sounds) is input from the DVD player.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Action to take

U1310

CONTROL UNIT (AV)
[U1310]

An initial diagnosis error is detected in AV communication 
circuit.

Replace AV control unit.

AV-96

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

U1200 AV CONTROL UNIT

U1200 AV CONTROL UNIT

Description

INFOID:0000000005528488

Replace the AV control unit if this DTC is displayed. Refer to 

AV-534, "Exploded View"

.

DTC Logic

INFOID:0000000005528489

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each control 

unit by communication. It operates each system according to communication 
signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-

munication to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• The camera image signal is input from the camera control unit. The AV control 

unit outputs camera image signal to the front display unit.

• BOSE amp. ON signal and sound signal are transmitted to BOSE amp.
• Power (signal VCC and inverter VCC) is transmitted to front display.

Without DVD entertainment system

• Auxiliary image and auxiliary sound signals are input from the auxiliary input 

jacks.
With DVD entertainment system

• Composite image signal (auxiliary and DVD images) is input from the video 

distributor.

• Sound signal (DVD and auxiliary sounds) is input from the DVD player.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Action to take

U1200

Cont Unit
FLASH- ROM
[U1200]

An internal malfunction is detected in AV control unit 
(FLASH-ROM).

Replace AV control unit.

AV

U1216 AV CONTROL UNIT

AV-97

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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U1216 AV CONTROL UNIT

Description

INFOID:0000000005528490

Replace the AV control unit if this DTC is displayed. Refer to 

AV-534, "Exploded View"

.

DTC Logic

INFOID:0000000005528491

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each control 

unit by communication. It operates each system according to communication 
signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM, A/C auto amp. and combination meter via CAN com-

munication to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• The camera image signal is input from the camera control unit. The AV control 

unit outputs camera image signal to the front display unit.

• BOSE amp. ON signal and sound signal are transmitted to BOSE amp.
• Power (signal VCC and inverter VCC) is transmitted to front display.

Without DVD entertainment system

• Auxiliary image and auxiliary sound signals are input from the auxiliary input 

jacks.
With DVD entertainment system

• Composite image signal (auxiliary and DVD images) is input from the video 

distributor.

• Sound signal (DVD and auxiliary sounds) is input from the DVD player.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Action to take

U1216

CAN CONT
[U1216]

Internal malfunction of AV control unit (CAN controller) is 
detected.

Replace AV control unit.

AV-98

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

U1243 DISPLAY UNIT

U1243 DISPLAY UNIT

Description

INFOID:0000000005528492

DTC Logic

INFOID:0000000005528493

Diagnosis Procedure

INFOID:0000000005528494

1.

CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT

Check front display unit power supply and ground circuit. Refer to 

AV-107, "FRONT DISPLAY UNIT : Diagno-

sis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK CONTINUITY COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front display unit connector and AV control unit connector.

3.

Check continuity between front display unit harness connector and AV control unit harness connector.

4.

Check continuity between front display unit harness connector and ground.

Part name

Description

FRONT DISPLAY UNIT

• Front display image is controlled by the serial communication from AV control 

unit.

• It receives the power (signal VCC and inverter VCC) from the AV control unit 

and operates.

• RGB image signal is input from AV control unit (RGB, RGB area and RGB syn-

chronizing). 

• Synchronizing signal (HP, VP) is output to AV control unit.
• Camera image signal is input from AV control unit.

Without DVD entertainment system

• Auxiliary image signal is input from AV control unit.

With DVD entertainment system

• Composite image signal (auxiliary and DVD images) is input from the AV con-

trol unit.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1243

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 malfunctioning.

• Front display unit power supply and 

ground circuits.

• Serial communication circuits be-

tween AV control unit and front dis-
play unit.

Front display unit

AV control unit

Continuity

Connector

Terminals

Connector

Terminals

M49

11

M129

56

Existed

22

44

Front display unit

Ground

Continuity

Connector

Terminals

M49

11

Not existed

22

 

 

 

 

 

 

 

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