Condition NISSAN TEANA 2008 Service Manual

AV-96
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
CAMERA IMAGE SIGNAL CIRCUIT
CAMERA IMAGE SIGNAL CIRCUIT
DescriptionINFOID:0000000003882759
 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 dis-
play unit.
Diagnosis ProcedureINFOID:0000000003901215
1.CHECK CONTINUITY CAMERA IMAGE SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect camera control unit connector and AV control unit connector.
3. Check continuity between camera control unit harness connector and AV control unit harness connector.
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 CAMERA IMAGE SIGNAL
1. Connect camera control unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between camera control unit harness connector using an oscilloscope.
Is inspection result normal?
YES >> Replace AV control unit.
NO >> Replace camera control unit.
Camera control unit AV control unit
Continuity
Connector Terminals Connector Terminals
B25111
M13064
Existed
12 65
Camera control unit
GroundContinuity
Connector Terminal
B251 12 Not existed
(+)
(−) Condition Reference value Camera control unit
Connector Terminal
B251 12 GroundWhen rear view camera
image is displayed.
SKIB2251J

AV
COMPOSITE IMAGE SIGNAL CIRCUIT
AV-97
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
H
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K
L
MB A
O
P
COMPOSITE IMAGE SIGNAL CIRCUIT
DescriptionINFOID:0000000003882761
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:0000000003901216
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 control unit
GroundContinuity
Connector Terminal
M129 36 Not existed
(+) (−)
Condition Reference value AV c o n t r o l u n i t
Ground Connector Terminal
M129 36When AUX or camera image is dis-
played.
SKIB2251J

AV
STEERING ANGLE SENSOR SIGNAL CIRCUIT
AV-99
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
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F
G
H
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MB A
O
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3. Turn ignition switch ON.
4. Check signal between camera control unit harness connector and ground.
Is inspection result normal?
YES >> INSPECTION END
NO >> Replace steering angle sensor.
(+)
(−) Condition Reference value Camera control unit
Connector Terminals
B25123, 24 GroundTurn the steering to the right
A: Sensor signal 1
B: Sensor signal 2
Turn the steering to the left
A: Sensor signal 1
B: Sensor signal 2
25 GroundTurn the steering around the
neutral position
A: Sensor signal 3
B: Sensor signal 1
SKIB3827E
SKIB3828E
SKIB3829E

AV
STEERING SWITCH SIGNAL A CIRCUIT
AV-101
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
H
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K
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MB A
O
P
Component InspectionINFOID:0000000003939936
Measure the resistance between the steering switch connector ter-
minals 14 to 17 and 15 to 17.
Standard
JSNIA0215GB
Steering switch
ConditionResistance
Ω Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M30314
M303 17MENU DOWN switch
ON315 – 327
MENU UP switch ON 119 – 123
SOURCE switch ON 1
15VOL UP switch ON 119 – 123
VOL DOWN switch ON 1

AV
STEERING SWITCH SIGNAL B CIRCUIT
AV-103
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
H
I
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K
L
MB A
O
P
Component InspectionINFOID:0000000003939939
Measure the resistance between the steering switch connector ter-
minals 14 to 17 and 15 to 17.
Standard
JSNIA0215GB
Steering switch
ConditionResistance
Ω Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M30314
M303 17MENU DOWN switch
ON315 – 327
MENU UP switch ON 119 – 123
SOURCE switch ON 1
15VOL UP switch ON 119 – 123
VOL DOWN switch ON 1

AV
STEERING SWITCH SIGNAL GND CIRCUIT
AV-105
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
C
D
E
F
G
H
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K
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MB A
O
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Component InspectionINFOID:0000000003939942
Measure the resistance between the steering switch connector ter-
minals 14 to 17 and 15 to 17.
Standard
JSNIA0215GB
Steering switch
ConditionResistance
Ω Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M30314
M303 17MENU DOWN switch
ON315 – 327
MENU UP switch ON 119 – 123
SOURCE switch ON 1
15VOL UP switch ON 119 – 123
VOL DOWN switch ON 1

AV
AV CONTROL UNIT
AV-107
< ECU DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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MB A
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Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
2
(W)3
(B)Sound signal front LH OutputIgnition
switch
ONSound output.
4
(O/B)5
(W/R)Sound signal rear LH OutputIgnition
switch
ONSound output.
6
(W/G)15
(L/B)Steering switch signal A InputIgnition
switch
ONKeep pressing SOURCE
switch. 0 V
Keep pressing switch.0.7 V
Keep pressing switch.1.3 V
Except for above. 3.3 V
7
(V/W)Ground ACC power supply InputIgnition
switch
ACC— Battery voltage
9
(R/L)Ground Illumination signal InputIgnition
switch
OFFLighting switch is OFF. 0 V
Lighting switch is ON. 12.0 V
11
(B/W)12
(BR)Sound signal front RH OutputIgnition
switch
ONSound output.
13
(L)14
(B/W)Sound signal rear RH OutputIgnition
switch
ONSound output.
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
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E

AV-108
< ECU DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
AV CONTROL UNIT
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 or
AUX image is displayed.
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.
40
(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— Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB2251J
SKIB2237J
SKIB2236J
SKIB2238J
SKIB3603E

AV
AV CONTROL UNIT
AV-109
< ECU DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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G
H
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K
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MB A
O
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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 or
AUX image is displayed.
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 — — — —
56
(R)GroundCommunication signal
(CONT→DISP)OutputIgnition
switch
ONWhen adjusting display
brightness.
57
(R)GroundVertical synchronizing (VP)
signalInputIgnition
switch
ON— Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
PKIB4948J
PKIB5039J
SKIB3601E
PKIB5039J
SKIB3598E

AV-110
< ECU DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
AV CONTROL UNIT
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
(G)GroundComposite (AUX) image
signalInputIgnition
switch
ONWhen AUX image is dis-
played.
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
(V)GroundComposite (AUX) image
signal ground—Ignition
switch
ON—0 V
85
(B/W)Ground Ground —Ignition
switch
ON —0 V
86
(L)—CAN–HInput/
Output—— —
87
(P)—CAN–LInput/
Output—— —
88
(W)—AV communication signal
(H)Input/
Output—— —
89
(B)—AV communication signal
(L)Input/
Output—— —
95
(W)97
(R)AUX sound signal RH InputIgnition
switch
ONAUX sound input. Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB2251J
SKIB2251J
SKIB3609E