Nissan Leaf. Manual - part 114

AV

U1263 USB

AV-447

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

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U1263 USB

DTC Logic

INFOID:0000000010122677

DTC DETECTION LOGIC

NOTE:

Before performing diagnosis, make sure that the external input device is not malfunctioning.

Diagnosis Procedure

INFOID:0000000010122678

1.

CHECK USB HARNESS

Check USB harness visually for pinching.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the USB harness. Refer to 

AV-499, "Removal and Installation"

.

2.

CHECK USB HARNESS

Check USB harness continuity. Refer to 

AV-473, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the AV control unit. Refer to 

AV-488, "Removal and Installation"

.

NO

>> Replace the USB harness. Refer to 

AV-499, "Removal and Installation"

.

CONSULT Display

DTC Detection Condition

Possible Cause

USB overcurrent
 [U1263] 

Overcurrent of the USB connector is detected.

Check the USB harness between the AV control 
unit and USB connector.

AV-448

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

U1266 AV CONTROL UNIT

U1266 AV CONTROL UNIT

DTC Logic

INFOID:0000000010122679

CONSULT Display

DTC Detection Condition

Possible Cause

TCU CONN
 [U1266] 

Malfunction is detected between the AV control 
unit and TCU.

Check connection between the AV control unit 
and TCU.

AV

U1300 AV COMM CIRCUIT

AV-449

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

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U1300 AV COMM CIRCUIT

Description

INFOID:0000000010122680

U1300 is displayed when the AV signal error is detected for the multi AV system. It is always displayed

together with the error of the control unit connected to the AV control unit via AV communication. Determine

the possible malfunction cause from the table below.

SELF-DIAGNOSIS RESULTS DISPLAY ITEM

CONSULT Display

DTC Detection Condition

Possible Cause

• AV COMM CIRCUIT

[U1300]

• SWITCH CONN

[U1240]

When either one of the following items are de-
tected:
• multifunction switch power supply and ground 

circuits are malfunctioning.

• AV communication circuits between the AV 

control unit and multifunction switch are mal-
functioning.

• Multifunction switch power supply and ground 

circuits.

• AV communication circuits between AV control 

unit and multifunction switch.

AV-450

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

U1304 CAMERA IMAGE CALIBRATION

U1304 CAMERA IMAGE CALIBRATION

DTC Logic

INFOID:0000000010122681

Diagnosis Procedure

INFOID:0000000010122682

1.

PERFORM THE SELF-DIAGNOSIS

When U1304 is detected, perform calibration of camera image with CONSULT.

>> Perform calibration of camera image. Refer to 

AV-377, "CONSULT Function"

.

CONSULT Display

DTC Detection Condition

Possible Cause

CAMERA IMAGE CALIB 
[U1304]

Camera image calibration is incomplete.

Perform calibration of camera image with CON-
SULT.
Refer to 

AV-377, "CONSULT Function"

.