Nissan GT-R. Manual — part 15
AV
COMPOSITE IMAGE SIGNAL CIRCUIT
AV-55
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
COMPOSITE IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000009163275
AV control unit transmits the playback DVD image signal to the display unit.
Diagnosis Procedure
INFOID:0000000009163276
1.
CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and display unit connector.
3.
Check continuity between AV control unit harness connector and display unit harness connector.
4.
Check continuity between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK COMPOSITE IMAGE SIGNAL
1.
Connect AV control unit connector and display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
AV control unit
Display unit
Continuity
Connector
Terminal
Connector
Terminal
M203
68
M93
18
Existed
AV control unit
Ground
Continuity
Connector
Terminal
M203
68
Not existed
(+)
(
−
)
Condition
Reference value
AV control unit
Connector
Terminal
M203
68
Ground
At DVD image is displayed.
SKIB2251J
AV-56
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
DISK EJECT SIGNAL CIRCUIT
DISK EJECT SIGNAL CIRCUIT
Description
INFOID:0000000009163277
The eject signal is output to AV control unit when the eject switch of multifunction switch is pressed.
Diagnosis Procedure
INFOID:0000000009163278
1.
CHECK CONTINUITY CD EJECT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect multifunction switch connector and AV control unit connector.
3.
Check continuity between multifunction switch harness connector and AV control unit harness connector.
4.
Check continuity between multifunction switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK AV CONTROL UNIT VOLTAGE
1.
Connect multifunction switch connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace preset switch.
NO
>> Replace AV control unit.
Multifunction switch
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M72
14
M202
29
Existed
Multifunction switch
Ground
Continuity
Connector
Terminal
M72
14
Not existed
(+)
(
−
)
Condition
Voltage
(Approx.)
AV control unit
Connector
Terminal
M202
29
Ground
Pressing the eject switch
0 V
Except for above
5.0 V
AV
MICROPHONE SIGNAL CIRCUIT
AV-57
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
MICROPHONE SIGNAL CIRCUIT
Description
INFOID:0000000009163279
Supply power from AV control unit to microphone. The microphone transmits the voice signal to the AV control
unit.
Diagnosis Procedure
INFOID:0000000009163280
1.
CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND MICROPHONE CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect AV control unit connector and microphone connector.
3.
Check continuity between AV control unit harness connector and microphone harness connector.
4.
Check continuity between AV control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE MICROPHONE VCC
1.
Connect AV control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between AV control unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace AV control unit.
3.
CHECK MICROPHONE SIGNAL
1.
Connect microphone connector.
2.
Check signal between AV control unit harness connector.
AV control unit
Microphone
Continuity
Connector
Terminals
Connector
Terminals
M203
71
R5
2
Existed
72
4
87
1
AV control unit
Ground
Continuity
Connector
Terminals
M203
72
Not existed
87
(+)
(
−
)
Voltage
(Approx.)
AV control unit
AV control unit
Connector
Terminal
Connector
Terminal
M203
72
M203
71
5.0 V
AV-58
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO WITH NAVIGATION]
MICROPHONE SIGNAL CIRCUIT
Is the inspection result normal?
YES
>> Replace AV control unit.
NO
>> Replace microphone.
(+)
(
−
)
Condition
Reference value
AV control unit
AV control unit
Connector
Terminal
Connector
Terminal
M203
87
M203
71
Give a voice.
PKIB5037J
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст