Nissan Murano Z51. Manual - part 212

AV

U1244 GPS ANTENNA

AV-627

< DTC/CIRCUIT DIAGNOSIS >

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U1244 GPS ANTENNA

Description

INFOID:0000000005528747

DTC Logic

INFOID:0000000005528748

Diagnosis Procedure

INFOID:0000000005528749

1.

GPS ANTENNA CHECK

Visually check GPS antenna and antenna feeder.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1.

Disconnect GPS antenna connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace AV control unit.

Part name

Description

GPS ANTENNA

GPS signal is received and transmitted to AV control unit.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1244

GPS ANTENNA CONN
[U1244]

GPS antenna connection malfunction is detected.

GPS antenna disconnection.

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Connector

Terminal

M380

110

Ground

5.0 V

AV-628

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U1250 CAMERA CONTROL UNIT

U1250 CAMERA CONTROL UNIT

Description

INFOID:0000000005528750

DTC Logic

INFOID:0000000005528751

Diagnosis Procedure

INFOID:0000000005528752

1.

CHECK CAMERA-CONNECTION RECOGNITION SIGNAL CIRCUIT

1.

Disconnect AV control unit connector and camera control unit connector.

2.

Check continuity between AV control unit harness connector and camera control unit harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK AV CONTROL UNIT VOLTAGE

1.

Connect AV control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace camera control unit.

NO

>> Replace AV control unit.

Part name

Description

CAMERA CONTROL UNIT

• Camera image signal is input from rear view camera, and camera image is in-

dicated on the display.

• Power (camera ON signal) is transmitted to rear view camera.
• Controlled by AV communication transmitted from AV control unit.
• AV control unit recognizes the presence of camera system with camera con-

nection recognition signal.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1250

CAMERA CONT. CONN
[U1250]

Malfunction is detected in camera connection recognition 
circuit between AV control unit and camera control unit.

Camera-connection recognition cir-
cuit between AV control unit and cam-
era control unit.

AV control unit

Camera control unit

Continuity

Connector

Terminal

Connector

Terminal

M145

40

B60

14

Existed

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Connector

Terminal

M145

40

Ground

5.0 V

AV

U1258 SATELLITE RADIO ANTENNA

AV-629

< DTC/CIRCUIT DIAGNOSIS >

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U1258 SATELLITE RADIO ANTENNA

Description

INFOID:0000000005528753

DTC Logic

INFOID:0000000005528754

Diagnosis Procedure

INFOID:0000000005528755

1.

SATELLITE RADIO ANTENNA CHECK

Visually check satellite radio antenna and antenna feeder.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair malfunctioning parts.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1.

Disconnect satellite radio antenna connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace AV control unit.

Part name

Description

SATELLITE RADIO ANTENNA

Satellite radio waves are received and transmitted to AV control unit.

DTC

Display contents of 

CONSULT-III

DTC Detection Condition

Possible causes

U1258

XM ANTENNA CONN
[U1258]

Satellite radio antenna connection malfunction is detect-
ed.

• Satellite radio antenna feeder.
• Satellite radio antenna.

(+)

(

−

)

Voltage

(Approx.)

AV control unit

Connector

Terminal

M372

108

Ground

5.0 V

AV-630

< DTC/CIRCUIT DIAGNOSIS >

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U1300 AV COMM CIRCUIT

U1300 AV COMM CIRCUIT

Description

INFOID:0000000005528756

U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta-
neously, without fail, with the malfunction of control units connected to AV control unit with communication line.
Determine the possible malfunction cause from the table below.

SELF-DIAGNOSIS RESULTS DISPLAY ITEM

NOTE:

*: Non-equipped item is not displayed.

DTC

Display contents of 

CONSULT-III

Description

Possible malfunction factor/Action to 

take

U1300
U121F

• AV COMM CIRCUIT 

[U1300]

• INTERNAL COMM 

[U121F]

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.

U1300
U1240

• 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.

U1300
U1252

• 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 circuits between multifunction and 

camera control unit are malfunctioning.

• AV communication signal between AV control unit and 

camera control unit is malfunctioning.

• Camera control unit power supply 

and ground circuits.

• AV communication circuits between 

multifunction switch and camera 
control unit.

U1300
U1254

• 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 multifunction 

switch and iPod adapter are malfunctioning.

• AV communication signal between AV control unit and 

iPod adapter is malfunctioning.

• iPod adapter power supply and 

ground circuits.

• AV communication circuits between 

multifunction switch unit and iPod 
adapter.

U1300
U1252

U1254

*

• AV COMM CIRCUIT 

[U1300]

• REAR CAMERA LAN 

CONN [U1252]

• IPod CONN [U1254]

*

Malfunction is detected in AV communication circuits be-
tween camera control unit and the junction of AV control 
unit and multifunction switch. 

AV communication circuits between 
camera control unit and the junction of 
AV control unit and multifunction 
switch.

U1300
U1240
U1252

U1254

*

• AV COMM CIRCUIT 

[U1300]

• SWITCH CONN 

[U1240]

• REAR CAMERA LAN 

CONN [U1252]

• IPod CONN [U1254]

*

Malfunction is detected in AV communication circuits be-
tween AV control unit and multifunction switch.

AV communication circuits between AV 
control unit and the junction of camera 
control unit and multifunction switch.

U1300
U121F
U1240
U1252

U1254

*

• AV COMM CIRCUIT 

[U1300]

• INTERNAL COMM 

[U121F]

• SWITCH CONN 

[U1240]

• REAR CAMERA LAN 

CONN [U1252]

• IPod CONN [U1254]*

Malfunction is detected in AV communication circuits.

Check and repair the short circuit in AV 
communication circuits.