Nissan Leaf. Manual — part 74
AV
U1263 USB
AV-287
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
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U1263 USB
DTC Logic
INFOID:0000000010122558
DTC DETECTION LOGIC
NOTE:
Before performing the diagnosis, be sure to check that the external input device has no malfunction.
Diagnosis Procedure
INFOID:0000000010122559
1.
CHECK USB HARNESS
Check the USB harness visually and check if there is any pinching.
Is the check result normal?
YES
>> Replace the AV control unit. Refer to
AV-318, "Removal and Installation"
.
NO
>> Replace the USB harness. Refer to
AV-329, "Removal and Installation"
DTC
Display contents of CON-
SULT
Malfunction detection condition
Action to take
U1263
USB overcurrent
[U1263]
Overcurrent of the USB connector is detected.
Check the USB harness be-
tween the AV control unit
and USB connector.
AV-288
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
U1266 AV CONTROL UNIT
U1266 AV CONTROL UNIT
DTC Logic
INFOID:0000000010122560
DTC
Display contents of CON-
SULT
DTC detection condition
Action to take
U1266
TCU CONN
[U1266]
Malfunction is detected between the AV control unit and
TCU.
Check the connection be-
tween the AV control unit and
TCU.
AV
U1300 AV COMM CIRCUIT
AV-289
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
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U1300 AV COMM CIRCUIT
Description
INFOID:0000000010122561
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
DTC
Display contents of CONSULT
Description
Probable malfunction location
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
the AV control unit and multifunction
switch are malfunctioning.
• Multifunction switch power supply
and ground circuits.
• AV communication circuits be-
tween AV control unit and multi-
function switch.
AV-290
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION WITHOUT BOSE]
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
DTC Logic
INFOID:0000000010122562
DTC
Display contents of
CONSULT
DTC detection condition
Action to take
U1310
CONTROL UNIT (AV)
[U1310]
AV communication circuit initial diagnosis malfunction is
detected
Replace the AV control unit if the
malfunction constantly occurs. Refer
to
AV-318, "Removal and Installa-
.
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