Nissan Teana J32. Instruction — part 98
AV
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
AV-247
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
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J
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B
A
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VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
Description
INFOID:0000000003765715
In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images dis-
played with AV control unit such as the image quality adjusting menu, etc.
Diagnosis Procedure
INFOID:0000000003901191
1.
CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector and AV control unit harness connector.
4.
Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector terminal and ground using an oscilloscope.
Is inspection result normal?
YES
>> Replace AV control unit.
NO
>> Replace display unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M49
20
M129
57
Existed
Display unit
Ground
Continuity
Connector
Terminal
M49
20
Not existed
(+)
(
−
)
Condition
Reference value
Display unit
Connector
Terminal
M49
20
Ground
—
SKIB3598E
AV-248
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AUX IMAGE SIGNAL CIRCUIT
AUX IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000003765717
Transmits the image signal of external device from auxiliary input jacks to AV control unit.
Diagnosis Procedure
INFOID:0000000003901192
1.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect auxiliary input jacks connector and DVD player connector.
3.
Check continuity between auxiliary input jacks harness connector and DVD player harness connector.
4.
Check continuity between auxiliary input jacks harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK AUX IMAGE SIGNAL
1.
Connect auxiliary input jacks connector and DVD player connector.
2.
Turn ignition switch ON.
3.
Make AUX image signal being input.
4.
Check signal between auxiliary input jacks harness connector using an oscilloscope.
Is inspection result normal?
YES
>> Replace DVD player.
NO
>> Check that there is no malfunction in the external device.
Auxiliary input jacks
DVD player
Continuity
Connector
Terminals
Connector
Terminals
M253
7
M254
8
Existed
8
10
Auxiliary input jacks
Ground
Continuity
Connector
Terminal
M253
7
Not existed
(+)
(
−
)
Condition
Reference value
Auxiliary input jacks
Auxiliary input jacks
Connector
Terminal
Connector
Terminal
M253
7
M253
8
When AUX image is displayed.
SKIB2251J
AV
DISK EJECT SIGNAL CIRCUIT
AV-249
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
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DISK EJECT SIGNAL CIRCUIT
Description
INFOID:0000000003765719
The eject signal is output to AV control unit when the eject switch of multifunction switch is pressed.
Diagnosis Procedure
INFOID:0000000003901193
1.
CHECK CONTINUITY DISK 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 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 inspection result normal?
YES
>> Replace preset switch.
NO
>> Replace AV control unit.
Multifunction switch
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M125
14
M131
103
Existed
Multifunction switch
Ground
Continuity
Connector
Terminal
M125
14
Not existed
(+)
(
−
)
Condition
Reference value
AV control unit
Connector
Terminal
M131
103
Ground
Pressing the eject switch.
0 V
Except for above.
3.3 V
AV-250
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
REAR VIEW CAMERA POWER SUPPLY
REAR VIEW CAMERA POWER SUPPLY
Description
INFOID:0000000003838249
• Camera control unit outputs camera ON signal to rear view camera and inputs rear view camera image sig-
nal from rear view camera when the reverse signal is input.
• The camera control unit that inputs the camera image signal transmits the camera image signal to the AV
control unit.
Diagnosis Procedure
INFOID:0000000003901194
1.
CHECK CONTINUITY CAMERA ON SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect camera control unit connector and rear view camera connector.
3.
Check continuity between camera control unit harness connector and rear view camera harness connec-
tor.
4.
Check continuity between camera control unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VOLTAGE CAMERA ON SIGNAL
1.
Connect camera control unit connector and rear view camera connector.
2.
Turn ignition switch ON.
3.
Check signal between camera control unit harness connector and ground.
Is inspection result normal?
YES
>> Replace rear view camera.
NO
>> Replace camera control unit.
Camera control unit
Rear view camera
Continuity
Connector
Terminal
Connector
Terminal
B251
8
T103
1
Existed
Camera control unit
Ground
Continuity
Connector
Terminal
B251
8
Not existed
(+)
(
−
)
Condition
Voltage
(Approx.)
Camera control unit
Connector
Terminal
B251
8
Ground
Selector le-
ver in R posi-
tion.
6.0 V
Other than
selector le-
ver in R posi-
tion.
0 V
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