Nissan Note E12. Manual - part 37

AV-140

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

U1229 AV CONTROL UNIT

U1229 AV CONTROL UNIT

DTC Logic

INFOID:0000000009460275

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

iPod CERTIFICATION
[U1229]

iPod authentication chip error.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-178, "Removal and Installation"

.

AV

U122F AV CONTROL UNIT

AV-141

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

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U122F AV CONTROL UNIT

DTC Logic

INFOID:0000000009460276

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

Digital broadcasting connection 
error
[U122F]

Communication error with digital audio broadcast 
module internal to AV control unit.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-178, "Removal and Installation"

.

AV-142

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

U1244 GPS ANTENNA

U1244 GPS ANTENNA

DTC Logic

INFOID:0000000009460277

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009460278

Regarding Wiring Diagram information, refer to 

AV-121, "Wiring Diagram"

.

1.

GPS ANTENNA INSPECTION

Visually inspect the GPS antenna and antenna feeder. Refer to 

AV-186, "Removal and Installation"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning components.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1. Disconnect AV control unit connector M80.

2. Turn ignition switch ON.

3. Check voltage between AV control unit connector M80 and ground.

Is inspection result normal?

YES

>> Replace GPS antenna. Refer to 

AV-186, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-178, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

GPS ANTENNA CONN
[U1244]

Open or short to ground is detected in GPS an-
tenna connection.

• GPS antenna disconnection.
• Open or short to ground in GPS antenna signal 

circuit.

AV control unit 

Ground

Voltage

Connector

Terminal

M80

61

—

5.0 V

AV

U1263 USB

AV-143

< DTC/CIRCUIT DIAGNOSIS >

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U1263 USB

DTC Logic

INFOID:0000000009460281

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM SELF DIAGNOSTIC RESULT

1. If there is a device connected to the USB interface, disconnect it.

2. Turn ignition switch ON and wait for 2 seconds or more.

3. Perform Self Diagnostic Result for MULTI AV. 
Is DTC U1263 displayed?

YES

>> Refer to 

AV-143, "Diagnosis Procedure"

. 

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009460282

1.

CHECK USB INTERFACE HARNESS

Visually inspect USB interface harness. Refer to 

AV-181, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace USB interface harness. Refer to 

AV-181, "Removal and Installation"

.

2.

CHECK USB INTERFACE HARNESS

Check USB interface harness. Refer to 

AV-164, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-178, "Removal and Installation"

.

NO

>> Replace USB interface harness. Refer to 

AV-181, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

USB OVERCURRENT
[U1263]

Overcurrent in USB harness is detected.

• Device connected to USB interface.
• Harness between the AV control unit and USB 

interface.