Nissan Maxima. Manual — part 187
AV-568
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/BOSE & NAVI]
U1263 USB
U1263 USB
DTC Logic
INFOID:0000000009471484
Diagnosis Procedure
INFOID:0000000009471485
1.
CHECK USB HARNESS
Visually check USB harness.
Is the inspection result normal?
YES
>> Replace AV control unit. Refer to
AV-652, "Removal and Installation"
.
NO
>> Replace USB harness.
DTC
Display contents of
CONSULT
DTC detection condition
Possible malfunction factor
U1263
USB OVERCURRENT
[U1263]
Detection of over current in USB interface.
Check USB harness between the AV
control unit and USB interface.
AV
U1300 AV COMM CIRCUIT
AV-569
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/BOSE & NAVI]
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U1300 AV COMM CIRCUIT
Description
INFOID:0000000009471486
U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta-
neously, without fail, with the malfunction of control units connected to AV control unit with communication line.
Determine the possible malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DISPLAY ITEM
DTC
Display contents of
CONSULT
DTC detection condition
Possible malfunction factor
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 AV control unit
and multifunction switch are malfunctioning.
• Multifunction switch power supply
and ground circuits.
• AV communication circuits between
AV control unit and multifunction
switch.
AV-570
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/BOSE & NAVI]
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
DTC Logic
INFOID:0000000009471487
DTC
Display contents of
CONSULT
DTC detection condition
Possible malfunction factor
U1310
CONTROL UNIT (AV)
[U1310]
An initial diagnosis error is detected in AV communication
circuit.
Replace AV control unit. If the mal-
function occurs constantly. Refer to
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-571
< DTC/CIRCUIT DIAGNOSIS >
[COLOR DISPLAY - W/BOSE & NAVI]
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POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009471488
Regarding Wiring Diagram information, refer to
AV-614, "Wiring Diagram - With BOSE audio system With Nav-
1.
CHECK FUSES
Check that the following AV control unit fuses are not blown.
Are the fuses OK?
YES
>> GO TO 2.
NO
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.
POWER SUPPLY CIRCUIT CHECK
1. Disconnect AV control unit connectors M160 and M163.
2. Check voltage between the AV control unit connectors M160
and M163 and ground.
Are the voltage results as specified?
YES
>> GO TO 3.
NO
>> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
3.
GROUND CIRCUIT CHECK
Unit
Terminals
Signal name
Fuse No.
AV control unit
19
Battery power
24
7
Ignition switch ACC or ON
17
52
Ignition switch ON or START
3
(+)
(-)
OFF
ACC
ON
Connector
Terminal
M160
7
Ground
0V
Battery
voltage
Battery
voltage
19
Ground
Battery
voltage
Battery
voltage
Battery
voltage
M163
52
Ground
0V
0V
Battery
voltage
AWNIA1929ZZ
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