Nissan Quest E52. Instruction — part 175
AV
U1310 AV CONTROL UNIT
AV-579
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
U1310 AV CONTROL UNIT
DTC Logic
INFOID:0000000009652373
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
.
AV-580
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009652374
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connectors and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between AV control unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connectors.
3.
Check continuity between AV control unit harness connectors and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
FRONT DISPLAY UNIT
FRONT DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000009652375
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
Signal name
AV control unit
Probe
Condition
Standard
Reference value
Terminal
Connector
(+)
(
−
)
Ignition switch
Battery power supply
M178
19
20
OFF
9.0 - 15.6 V
Battery voltage
ACC power supply
7
ACC
7.0 V - Battery
voltage
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M178
20
OFF
Existed
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-581
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
Check voltage between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between front display unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector.
3.
Check continuity between front display unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
REAR DISPLAY UNIT
REAR DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000009652376
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between rear display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between rear display unit and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear display unit connector.
3.
Check continuity between rear display unit harness connector and ground.
Signal name
Front display
unit
Probe
Condition
Standard
Reference value
Terminal
Connector
(+)
(
−
)
Ignition switch
Battery power supply
M155
11
12
OFF
9.0 - 16.0 V
Battery voltage
ACC power supply
23
ACC
6.0 - 16.0 V
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
M155
12
OFF
Existed
Power source
Fuse No.
Battery
35
Ignition switch ACC or ON
19
Signal name
Rear display unit
Probe
Condition
Standard
Reference value
Terminal
Connector
(+)
(
−
)
Ignition switch
Battery power supply
R36
29
31
32
OFF
9.0 - 16.0 V
Battery voltage
30
ACC power supply
28
ACC
7.6 V - Battery
voltage
AV-582
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
BOSE AMP.
BOSE AMP. : Diagnosis Procedure
INFOID:0000000009652377
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness between BOSE amp. and fuse.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BOSE amp. connector.
3.
Check continuity between BOSE amp. harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair harness or connector.
AROUND VIEW MONITOR CONTROL UNIT
AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009942968
1.
CHECK FUSE
Check for blown fuses.
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
R36
31
OFF
Existed
32
Power source
Fuse No.
Battery
26
27
Signal name
BOSE amp.
Probe
Condition
Standard
Reference value
Terminal
Connector
(+)
(
−
)
Ignition switch
Battery power supply
B251
10
7
12
OFF
9.0 - 16.0 V
Battery voltage
11
Signal name
Connector No.
Terminal No.
Ignition switch position
Continuity
Ground
B251
7
OFF
Existed
12
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