Nissan Xterra. Manual - part 43

AV-164

< DTC/CIRCUIT DIAGNOSIS >

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U1263 USB

U1263 USB

DTC Logic

INFOID:0000000009485284

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-164, "Diagnosis Procedure"

. 

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009485285

1.

CHECK USB INTERFACE HARNESS

Visually inspect USB interface harness. Refer to 

AV-232, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 2. 

NO

>> Replace USB interface harness. Refer to 

AV-232, "Removal and Installation"

.

2.

CHECK USB INTERFACE HARNESS

Check USB interface harness. Refer to 

AV-199, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-218, "Removal and Installation"

.

NO

>> Replace USB interface harness. Refer to 

AV-232, "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

U1265 AUDIO AMP.

AV-165

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U1265 AUDIO AMP.

DTC Logic

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Diagnosis Procedure

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Regarding Wiring Diagram information, refer to 

AV-135, "Wiring Diagram"

.

1.

CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND AUDIO AMP.

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M96 and audio amplifier connector B158.

3. Check continuity between AV control unit connector M96 and audio amp. connector B158.

4. Check continuity between AV control unit connector M96 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK AV CONTROL UNIT VOLTAGE

1. Connect AV control unit connector M96.

2. Turn ignition switch ON.

3. Check voltage between AV control unit connector M96 and ground.

Is the inspection result normal?

YES

>> Replace audio amplifier. Refer to 

AV-219, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-218, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

AMP ON TERMINAL
[U1265]

Open or short to ground is detected in audio amp. 
ON signal circuit.

Open or short to ground in audio amp. ON signal 
circuit.

AV control unit

Audio amplifier

Continuity

Connector

Terminal

Connector

Terminal

M96

1

B158

9

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M96

1

—

No

AV control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M96

1

—

Battery voltage

AV-166

< DTC/CIRCUIT DIAGNOSIS >

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U12AA CONFIGURATION ERROR

U12AA CONFIGURATION ERROR

DTC Logic

INFOID:0000000009485288

DTC DETECTION LOGIC

Diagnosis Procedure

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1.

PERFORM CONFIGURATION

When U12AA is detected, configuration data must be written.

>> Write configuration data with CONSULT. Refer to 

AV-155, "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-155, "CONFIGURATION (AV CON-

TROL UNIT) : Work Procedure"

.

AV

U12AB ANTENNA

AV-167

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U12AB ANTENNA

DTC Logic

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DTC DETECTION LOGIC

Diagnosis Procedure

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1.

ROD ANTENNA INSPECTION

Visually inspect the rod antenna and antenna feeder. Refer to 

AV-227, "Location of Antenna"

.

Is inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-218, "Removal and Installation"

.

NO

>> Repair or replace malfunctioning components.

CONSULT Display

DTC Detection Condition

Possible Cause

FM Antenna error
[U12AB]

Open or short to ground is detected in rod anten-
na connection.

• Rod antenna disconnection.
• Open or short to ground in antenna feeder.