2008 NISSAN TEANA Service Manual

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Page 225 of 5121

NISSAN TEANA 2008 Service Manual AV
U1300 AV COMM CIRCUIT
AV-81
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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U1300 AV COMM CIRCUIT
DescriptionINFOID:0000000003882731
U1300 is indicated when malf

AV
U1300 AV COMM CIRCUIT
AV-81
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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U1300 AV COMM CIRCUIT
DescriptionINFOID:0000000003882731
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
DTCDisplay contents of
CONSULT-IIIDescriptionPossible malfunction factor/Action to
take
U1300
U1240 AV COMM CIRCUIT
[U1300]
SWITCH CONN
[U1240]When either one of the following items is detected:
multifunction switch power supply and ground circuits
are malfunctioning.
AV communication circuits between AV control unit and
multifunction switch are malfunctioning.
AV communication signal between AV control unit and
multifunction switch is malfunctioning. Multifunction switch power supply
and ground circuits
Refer toAV- 8 3 , "
MULTIFUNCTION
SWITCH : Diagnosis Procedure".
AV communication circuits be-
tween AV control unit and multi-
function switch
U1300
U1252 AV COMM CIRCUIT
[U1300]
REAR-CAMERA LAN
CONN [U1252]With rear control switch
When either one of the following items is detected:
camera control unit power supply and ground circuits
are malfunctioning.
AV communication signal between AV control unit and
camera control unit is malfunctioning.
AV communication circuits between multifunction
switch and rear control switch are malfunctioning.
AV communication circuits between rear control switch
and camera control unit are malfunctioning. Camera control unit power supply
and ground circuits
Refer to AV- 8 4 , "
CAMERA CON-
TROL UNIT : Diagnosis Proce-
dure".
AV communication circuits be-
tween multifunction switch and rear
control switch
AV communication circuits be-
tween rear control switch and cam-
era control unit
Without rear control switch
When either one of the following items is detected:
camera control unit power supply and ground circuits
are malfunctioning.
malfunction is detected in AV communication circuits
between multifunction switch and camera control unit.
AV communication signal between AV control unit and
multifunction switch is malfunctioning. Camera control unit power supply
and ground circuits
Refer to AV- 8 4 , "
CAMERA CON-
TROL UNIT : Diagnosis Proce-
dure".
AV communication circuits be-
tween multifunction switch and
camera control unit
U1300
U1240
U1252 AV COMM CIRCUIT
[U1300]
SWITCH CONN
[U1240]
REAR-CAMERA LAN
CONN [U1252]When either one of the following items is detected:
AV communication circuits between AV control unit and
multifunction switch are malfunctioning.
AV communication signal between AV control unit and
multifunction switch is malfunctioning.AV communication circuits between
AV control unit and multifunction
switch

Page 226 of 5121

NISSAN TEANA 2008 Service Manual AV-82
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis ProcedureINFOID:000000000390120

Page 227 of 5121

NISSAN TEANA 2008 Service Manual AV
POWER SUPPLY AND GROUND CIRCUIT
AV-83
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2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the harne

Page 228 of 5121

NISSAN TEANA 2008 Service Manual AV-84
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
POWER SUPPLY AND GROUND CIRCUIT
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER

Page 229 of 5121

NISSAN TEANA 2008 Service Manual AV
POWER SUPPLY AND GROUND CIRCUIT
AV-85
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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YES >> INSPECTION END
NO >> Repair harness or connector.

Page 230 of 5121

NISSAN TEANA 2008 Service Manual AV-86
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
RGB (R: RED) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
RGB (R: RED) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
DescriptionINFO

Page 231 of 5121

NISSAN TEANA 2008 Service Manual AV
RGB (G: GREEN) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
AV-87
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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RGB (G: GREEN) SIGNAL CIRCUIT (AV CONTROL U

Page 232 of 5121

NISSAN TEANA 2008 Service Manual AV-88
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
DescriptionIN

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