Nissan Sentra. Manual - part 67

AV-260

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

U1263 USB

U1263 USB

DTC Logic

INFOID:0000000009758959

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-260, "Diagnosis Procedure"

. 

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009758960

1.

CHECK USB INTERFACE HARNESS

Visually inspect USB interface harness. Refer to 

AV-307, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 2. 

NO

>> Replace USB interface harness. Refer to 

AV-307, "Removal and Installation"

.

2.

CHECK USB INTERFACE HARNESS

Check USB interface harness. Refer to 

AV-283, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-298, "Removal and Installation"

.

NO

>> Replace USB interface harness. Refer to 

AV-307, "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.

AV

U1264 ANTENNA AMP.

AV-261

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

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U1264 ANTENNA AMP.

DTC Logic

INFOID:0000000009758961

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009758962

Regarding Wiring Diagram information, refer to 

AV-234, "Wiring Diagram"

.

1.

ANTENNA AMP. INSPECTION

Visually inspect the antenna amp. and antenna feeder. Refer to 

AV-303, "Location of Antenna"

.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning components.

2.

CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND ANTENNA AMP.

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M144 and antenna amp. connector M502.

3. Check continuity between AV control unit connector M144 and antenna amp. connector M502.

4. Check continuity between AV control unit connector M144 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

3.

CHECK AV CONTROL UNIT VOLTAGE

1. Connect AV control unit connector M144.

2. Turn ignition switch ON.

3. Check voltage between AV control unit connector M144 and ground.

Is the inspection result normal?

YES

>> Replace antenna amp. Refer to 

AV-306, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-298, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

ANTENNA AMP TERMINAL
[U1264]

Open or short to ground is detected in Antenna 
amp. connection.

• Antenna amp. disconnection.
• Open or short to ground in antenna amp. ON 

signal circuit.

AV control unit

Antenna amp.

Continuity

Connector

Terminal

Connector

Terminal

M144

54

M502

1

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M144

54

—

No

AV control unit

Ground

Voltage

(Approx.)

(+)

(–)

Connector

Terminal

M144

54

—

Battery voltage

AV-262

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

U12AA CONFIGURATION ERROR

U12AA CONFIGURATION ERROR

DTC Logic

INFOID:0000000009758963

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000009758964

1.

PERFORM CONFIGURATION

When U12AA is detected, configuration data must be written.

>> Write configuration data with CONSULT. Refer to 

AV-251, "CONFIGURATION (AV CONTROL

UNIT) : Work Procedure"

.

CONSULT Display

DTC Detection Condition

Possible Cause

Configuration Error
[U12AA]

AV control unit is not properly configured or con-
figuration is corrupt.

Configuration data needs to be written.
Refer to 

AV-251, "CONFIGURATION (AV CON-

TROL UNIT) : Work Procedure"

.

AV

U12AC AV CONTROL UNIT

AV-263

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITHOUT BOSE]

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U12AC AV CONTROL UNIT

DTC Logic

INFOID:0000000009758965

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

Display Temperature too High
[U12AC]

Display temperature has exceeded maximum 
temperature. Display is switched OFF to avoid ir-
reversible damage.

Replace AV control unit if malfunction occurs 
constantly.
Refer to 

AV-298, "Removal and Installation"

.