AUX NISSAN TEANA 2008 Workshop Manual

AV-220
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U1216 AV CONTROL UNIT
U1216 AV CONTROL UNIT
DescriptionINFOID:0000000003765671
Replace the AV control unit if this DTC is displayed. Refer to AV-378, "Removal and Installation".
DTC LogicINFOID:0000000003765672
Part name Description
AV CONTROL UNIT It is the master unit of the MULTI AV system, and it is connected to each control
unit by communication. It operates each system according to communication
signals from the AV control unit.
 AV control unit includes audio function and vehicle information function.
 It is connected to ECM and combination meter. via CAN communication to ob-
tain necessary information for the vehicle information function.
 It is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
 Composite image signal (AUX and DVD images) is input from DVD player.
 Camera image signal is input from camera control unit.
 Composite image (DVD, AUX and camera images) signal is output to display
unit.
 Sound signal (DVD and AUX sounds) is input from the DVD player.
 Power (signal VCC and inverter VCC) is transmitted to front display unit.
DTCDisplay contents of
CONSULT-IIIDTC Detection Condition Action to take
U1216CAN CONT
[U1216]Internal malfunction of AV control unit (CAN controller) is
detected.Replace AV control unit.

AV-222
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U1243 DISPLAY UNIT
U1243 DISPLAY UNIT
DescriptionINFOID:0000000003765673
DTC LogicINFOID:0000000003765674
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000003901175
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to AV-236, "
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

AV
RGB AREA (YS) SIGNAL CIRCUIT
AV-245
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MB A
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RGB AREA (YS) SIGNAL CIRCUIT
DescriptionINFOID:0000000003765711
Transmits the display area of RGB image displayed by AV control unit or NAVI control unit with RGB area (YS)
signal to display unit.
Diagnosis ProcedureINFOID:0000000003901189
1.CHECK CONTINUITY RGB AREA (YS) 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 terminal 9 and ground.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK RGB SYNCHRONIZING 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 display unit.
NO >> Replace AV control unit.
Display unit AV control unit
Continuity
Connector Terminal Connector Terminal
M49 9 M129 43 Existed
Display unit
GroundContinuity
Connector Terminal
M49 9 Not existed
(+)
(−) Condition Reference value Display unit
Connector Terminal
M49 9 GroundWhen RGB image is displayed. Approx. 5 V
When AUX image is displayed.
PKIB4948J

AV-246
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HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
DescriptionINFOID:0000000003765713
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 ProcedureINFOID:0000000003901190
1.CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) 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 HORIZONTAL SYNCHRONIZING (HP) 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 8 M129 45 Existed
Display unit
GroundContinuity
Connector Terminal
M49 8 Not existed
(+)
(−) Condition Reference value Display unit
Connector Terminal
M49 8 Ground —
SKIB3601E

AV
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
AV-247
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C
D
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F
G
H
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MB A
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P
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
DescriptionINFOID: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 ProcedureINFOID: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 20M12957 Existed
Display unit
GroundContinuity
Connector Terminal
M49 20 Not existed
(+)
(−) Condition Reference value Display unit
Connector Terminal
M49 20 Ground —
SKIB3598E

AV-248
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AUX IMAGE SIGNAL CIRCUIT
AUX IMAGE SIGNAL CIRCUIT
DescriptionINFOID:0000000003765717
Transmits the image signal of external device from auxiliary input jacks to AV control unit.
Diagnosis ProcedureINFOID: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
M2537
M2548
Existed
810
Auxiliary input jacks
GroundContinuity
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-252
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COMPOSITE IMAGE SIGNAL CIRCUIT
COMPOSITE IMAGE SIGNAL CIRCUIT
DescriptionINFOID:0000000003765725
AV control unit that inputs the camera image signal and AUX image signal transmits the composite image sig-
nal to the display unit.
Diagnosis ProcedureINFOID:0000000003901196
1.CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
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 inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO DISPLAY UNIT)
1. Connect AV control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between AV control unit harness connector using an oscilloscope.
Is inspection result normal?
YES >> Replace display unit.
NO >> Replace AV control unit.
AV control unit Display unit
Continuity
Connector Terminals Connector Terminals
M12936
M4915
Existed
37 5
AV c o n t r o l u n i t
GroundContinuity
Connector Terminal
M129 36 Not existed
(+) (−)
Condition Reference value AV control unit
Ground Connector Terminal
M129 36When AUX or camera image is dis-
played.
SKIB2251J

AV-262
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AV CONTROL UNIT
15
(L/B)GroundSteering switch signal
ground—Ignition
switch
ON—0 V
16
(GR/L)15
(L/B)Steering switch signal B InputIgnition
switch
ONKeep pressing VOL DOWN
switch.0 V
Keep pressing VOL UP
switch.0.7 V
Except for above. 3.3 V
19
(Y)Ground Battery power supply InputIgnition
switch
OFF— Battery voltage
20
(B/W)Ground Ground —Ignition
switch
ON—0 V
33 — FM sub Input — — —
34 — AM–FM main Input — — —
35 Ground Antenna amp. ON signal OutputIgnition
switch
ACC— 12.0 V
36
(B)Ground Composite image signal OutputIgnition
switch
ONWhen camera image, DVD
image or AUX image is dis-
played.
37
(W)GroundComposite image signal
ground—Ignition
switch
ON—0 V
38
(B)Ground RGB image signal (B: blue) OutputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
39
(R)GroundRGB image signal (G:
green)OutputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen. Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB2251J
SKIB2237J
SKIB2236J

AV
AV CONTROL UNIT
AV-263
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MB A
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P40
(W)Ground RGB image signal (R: red) OutputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
41
(G)Ground RGB synchronizing signal OutputIgnition
switch
ON—
42 —RGB synchronizing signal
shield—— — —
43
(B)Ground RGB area (YS) signal OutputIgnition
switch
ONWhen RGB image is dis-
played.5.0 V
When camera image, DVD
image or AUX image is dis-
played.
44
(G)GroundCommunication signal
(DISP→CONT)InputIgnition
switch
ONWhen adjusting display
brightness.
45
(W)GroundHorizontal synchronizing
(HP) signalInputIgnition
switch
ON—
46
(LG)Ground Signal ground —Ignition
switch
ACC——
47
(O)Ground Signal VCC OutputIgnition
switch
ACC—9.0 V
49 — Shield — — — —
50 — RGB signal Shield — — — —
55 — Shield — — — —Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB2238J
SKIB3603E
PKIB4948J
PKIB5039J
SKIB3601E

AV-264
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AV CONTROL UNIT
56
(R)GroundCommunication signal
(CONT→DISP)OutputIgnition
switch
ONWhen adjusting display
brightness.
57
(R)GroundVertical synchronizing (VP)
signalInputIgnition
switch
ON—
58
(BR)Ground Inverter ground —Ignition
switch
ACC——
59
(Y)Ground Inverter VCC OutputIgnition
switch
ACC— 9.0 V
64 —Camera image signal
shield—— — —
65
(Y)Ground Camera image signal InputIgnition
switch
ONWhen camera image is dis-
played.
66
(V)GroundComposite (DVD and AUX)
image signalInputIgnition
switch
ONWhen DVD image or AUX
image is displayed.
68
(W)GroundCamera connection recog-
nition signalInputIgnition
switch
ONConnected to camera con-
trol unit connector.0 V
Not connected to camera
control unit connector.5.0 V
73 —Composite image signal
shield—— — —
74
(G)GroundComposite (DVD and AUX)
image signal ground—Ignition
switch
ON—0 V Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
PKIB5039J
SKIB3598E
SKIB2251J
SKIB2251J