Nissan Murano. Manual — part 84
AV-114
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
U1255 SATELLITE RADIO TUNER
U1255 SATELLITE RADIO TUNER
DTC Logic
INFOID:0000000009721628
Diagnosis Procedure
INFOID:0000000009721629
1.
CHECK SATELLITE RADIO TUNER POWER SUPPLY AND GROUND CIRCUIT
Check satellite radio tuner power supply and ground circuit. Refer to
AV-119, "SATELLITE RADIO TUNER :
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair malfunctioning parts.
2.
CHECK CONTINUITY COMMUNICATION CIRCUIT AND REQUEST SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and satellite radio tuner connector.
3.
Check continuity between AV control unit harness connector and satellite radio tuner harness connector.
4.
Check continuity between AV control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AV CONTROL UNIT VOLTAGE
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between AV control unit harness connector and ground.
DTC
Display contents of
CONSULT
DTC Detection Condition
Possible causes
U1255
SAT CONN
[U1255]
When either one of the following items is detected:
• satellite radio tuner power supply and ground circuit are
malfunctioning.
• communication circuits between AV control unit and
satellite radio tuner are malfunctioning.
• request signal circuit between AV control unit and sat-
ellite radio tuner are malfunctioning.
• Satellite radio tuner power supply
DIO TUNER : Diagnosis Proce-
dure"
• Communication circuit between AV
control unit and satellite radio tun-
er.
• Request signal circuit between AV
control unit and satellite radio tun-
er.
AV control unit
Satellite radio tuner
Continuity
Connector
Terminals
Connector
Terminals
M176
122
B48
10
Existed
129
8
130
9
AV control unit
Ground
Continuity
Connector
Terminals
M176
122
Not existed
129
130
AV
U1255 SATELLITE RADIO TUNER
AV-115
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
C
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A
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Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace AV control unit. Refer to
4.
CHECK SATELLITE RADIO TUNER VOLTAGE
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector.
3.
Connect satellite radio tuner connector.
4.
Turn ignition switch ON.
5.
Check signal between satellite radio tuner harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace satellite radio tuner. Refer to
(+)
(
−
)
Voltage
(Approx.)
AV control unit
Connector
Terminals
M176
129
Ground
7.0 V
130
7.0 V
(+)
(
−
)
Voltage
(Approx.)
Satellite radio tuner
Connector
Terminal
B48
10
Ground
7.0 V
AV-116
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
U1300 AV COMM CIRCUIT
U1300 AV COMM CIRCUIT
Description
INFOID:0000000009721630
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.
U1300
U1256
• AV COMM CIRCUIT
[U1300]
• HAND FREE CONN
[U1256]
When either one of the following items are detected:
• TEL adapter unit power supply and ground circuits are
malfunctioning.
• AV communication circuits between AV control unit
and TEL adapter unit are malfunctioning.
• TEL adapter unit power supply and
ground circuits.
• AV communication circuits between
AV control unit and TEL adapter unit.
U1300
U1240
U1256
• AV COMM CIRCUIT
[U1300]
• SWITCH CONN
[U1240]
• HAND FREE CONN
[U1256]
AV communication circuits between AV control unit and
multifunction switch are malfunctioning.
AV communication circuits between AV
control unit and multifunction switch.
AV
U1310 AV CONTROL UNIT
AV-117
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH COLOR DISPLAY]
C
D
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F
G
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K
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B
A
O
P
U1310 AV CONTROL UNIT
DTC Logic
INFOID:0000000009721631
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 the AV control unit if the mal-
function occurs constantly.
Refer to
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