2008 NISSAN TEANA Service Manual

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Page 217 of 5121

NISSAN TEANA 2008 Service Manual AV
U1010 CONTROL UNIT (CAN)
AV-73
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
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MB A
O
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U1010 CONTROL UNIT (CAN)
DescriptionINFOID:0000000003882716
Initial diagnosis of A

Page 218 of 5121

NISSAN TEANA 2008 Service Manual AV-74
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
U1310 AV CONTROL UNIT
U1310 AV CONTROL UNIT
DescriptionINFOID:0000000003882719
Replace the AV control unit if this DTC is displayed. Refer

Page 219 of 5121

NISSAN TEANA 2008 Service Manual AV
U1200 AV CONTROL UNIT
AV-75
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
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MB A
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U1200 AV CONTROL UNIT
DescriptionINFOID:0000000003882721
Replace the AV control unit

Page 220 of 5121

NISSAN TEANA 2008 Service Manual AV-76
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
U1216 AV CONTROL UNIT
U1216 AV CONTROL UNIT
DescriptionINFOID:0000000003882723
Replace the AV control unit if this DTC is displayed. Refer

Page 221 of 5121

NISSAN TEANA 2008 Service Manual AV
U1243 DISPLAY UNIT
AV-77
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
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I
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MB A
O
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U1243 DISPLAY UNIT
DescriptionINFOID:0000000003882725
DTC LogicINFOID:0000000003882726
D

AV
U1243 DISPLAY UNIT
AV-77
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
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MB A
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U1243 DISPLAY UNIT
DescriptionINFOID:0000000003882725
DTC LogicINFOID:0000000003882726
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000003901200
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to AV-82, "
DISPLAY UNIT : Diagnosis Procedure".
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair malfunctioning parts.
2.CHECK CONTINUITY COMMUNICATION 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 3.
NO >> Repair harness or connector.
Part name Description
DISPLAY UNIT Display image is controlled by the serial communication from AV control unit.
It receives the power (signal VCC and inverter VCC) from the AV control unit
and operates.
RGB image signal is input from AV control unit (RGB, RGB area and RGB syn-
chronizing).
Composite image (DVD, AUX and camera images) signal is input from AV con-
trol unit.
Synchronize signal (HP, VP) is output to AV control unit.
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Possible causes
U1243FRONT DISP CONN
[U1243]When either one of the following items is detected:
display unit power supply and ground circuits are mal-
functioning.
serial communication circuits between display unit and
AV control unit are malfunctioning.
serial communication signal between display unit and
AV control unit is malfunctioning. Display unit power supply and
ground circuits.
Serial communication circuits be-
tween display unit and AV control
unit
Display unit AV control unit
Continuity
Connector Terminals Connector Terminals
M4911
M12956
Existed
22 44
Display unit
GroundContinuity
Connector Terminals
M4911
Not existed
22

Page 222 of 5121

NISSAN TEANA 2008 Service Manual AV-78
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
U1243 DISPLAY UNIT
3.CHECK COMMUNICATION SIGNAL
1. Connect display unit connector and AV control unit connector.
2. Turn ignition switch ON

Page 223 of 5121

NISSAN TEANA 2008 Service Manual AV
U1250 CAMERA CONTROL UNIT
AV-79
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
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MB A
O
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U1250 CAMERA CONTROL UNIT
DescriptionINFOID:0000000003882728
DTC LogicINFOID:0000

Page 224 of 5121

NISSAN TEANA 2008 Service Manual AV-80
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
U1250 CAMERA CONTROL UNIT
NO >> Replace camera control unit.

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