ignition NISSAN TEANA 2008 Service Manual

AV
STEERING SWITCH SIGNAL GND CIRCUIT
AV-259
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STEERING SWITCH SIGNAL GND CIRCUIT
DescriptionINFOID:0000000003765735
Transmits the steering switch signal to AV control unit.
Diagnosis ProcedureINFOID:0000000003765736
1.CHECK STEERING SWITCH SIGNAL GND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and spiral cable connector.
3. Check continuity between AV control unit harness connector and spiral cable harness connector.
4. Connect AV control unit connector.
Is inspection result normal?
YES >> GO TO 2.
NO >> Repair harness or connector.
2.CHECK SPIRAL CABLE
Check spiral cable.
Is inspection result normal?
YES >> GO TO 3.
NO >> Replace spiral cable.
3.CHECK GROUND CIRCUIT
1. Connect AV control unit connector.
2. Check continuity between AV control unit harness connector and ground.
Is inspection result normal?
YES >> GO TO 4.
NO >> Replace AV control unit.
4.CHECK STEERING SWITCH
Check steering switch. Refer to AV-260, "
Component Inspection".
Is inspection result normal?
YES >> INSPECTION END
NO >> Replace steering switch.
AV control unit Spiral cable
Continuity
Connector Terminal Connector Terminal
M127 15 M33 33 Existed
AV control unit
GroundContinuity
Connector Terminal
M127 15 Existed

AV
AV CONTROL UNIT
AV-261
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ECU DIAGNOSIS
AV CONTROL UNIT
Reference ValueINFOID:0000000003765757
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III data monitor item
TERMINAL LAYOUT
PHYSICAL VALUES
Display ItemDis-
playVehicle status Remarks
VHCL SPD SIGOn Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is nor-
mal.
Off Vehicle speed =0 km/h (0 MPH)
PKB SIGOn Parking brake is applied.
Changes in indication may be delayed. This is nor-
mal.
Off Parking brake is released.
ILLUM SIGOn Light switch ON.
—
Off Light switch OFF.
IGN SIGOn Ignition switch ON.
—
Off Ignition switch in ACC position.
REV SIGOn Selector lever in R position.
Changes in indication may be delayed. This is nor-
mal.
OffSelector lever in any position other
than R.
JPNIA1093ZZ
Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
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

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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(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

AV
AV CONTROL UNIT
AV-265
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P83
(R)82
(W)Stereo (DVD and AUX)
sound signal RHInputIgnition
switch
ONDVD* and AUX sound out-
put.
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—— —
90
(L)—AV communication signal
(H)Input/
Output—— —
91
(R)—AV communication signal
(L)Input/
Output—— —
99
(B)98
(G)Stereo (DVD and AUX)
sound signal LHInputIgnition
switch
ONDVD
*or AUX sound output.
100 — Shield — — — —
101
(BR)Ground Switch ground —Ignition
switch
ON—0 V
103
(SB)Ground Disk eject signal InputIgnition
switch
ONPressing the eject switch. 0 V
Except for above. 3.3 V
104
(O)Ground Ignition signal InputIgnition
switch
ON— Battery voltage
105
(P/B)Ground Reverse signal InputIgnition
switch
ONSelector lever in R position. 12.0 V
Other than selector lever in
R position.0 V Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3609E
SKIB3609E

AV-266
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AV CONTROL UNIT
*:Stereo sounds are input only when the 2 channel stereo sound is played.106
(G/R)Ground Parking brake signal InputIgnition
switch
ONParking brake ON. 0 V
Parking brake OFF.
107
(V/W)GroundVehicle speed signal
(8-pulse)InputIgnition
switch
ONWhen vehicle speed is ap-
prox. 40 km/h (25MPH).NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).
109
(W)11 5
(B)Stereo sound signal front
RHOutputIgnition
switch
ONAudio output
111 — Shield — — — —
11 3
(W)11 9
(B)Stereo sound signal LH OutputIgnition
switch
ONAudio output Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
JSNIA0007GB
JSNIA0012GB
SKIB3609E
SKIB3609E

AV
DISPLAY UNIT
AV-287
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DISPLAY UNIT
Reference ValueINFOID:0000000003793620
TERMINAL LAYOUT
PHYSICAL VALUES
JPNIA0006ZZ
Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
1
(B/W)Ground Ground —Ignition
switch
ON —0 V
2
(Y)Ground Inverter VCC Inputignition
switch
ACC—9.0 V
3
(O)Ground Signal VCC InputIgnition
switch
ACC—9.0 V
4—Composite image signal
shield—— — —
5
(W)GroundComposite image signal
ground—Ignition
switch
ON—0 V
6
(R)GroundRGB image signal (G:
green)InputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
7 — RGB ground — — — —
8
(W)GroundHorizontal synchronizing
(HP) signalOutputIgnition
switch
ON—
SKIB2236J
SKIB3601E

AV-288
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DISPLAY UNIT
9
(B)Ground RGB area (YS) signal InputIgnition
switch
ONWhen RGB image is dis-
played.5.0 V
When camera image, DVD
image or AUX image is dis-
played.
11
(R)GroundCommunication signal
(CONT→DISP)InputIgnition
switch
ONWhen adjusting display
brightness.
13
(BR)Ground Inverter ground —Ignition
switch
ON —0 V
14
(LG)Ground Signal ground —Ignition
switch
ON—0 V
15
(B)Ground Composite image signal InputIgnition
switch
ONWhen rear view camera im-
age, DVD image or AUX
image is displayed.
17
(W)Ground RGB image signal (R: red) InputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
18
(B)Ground RGB image signal (B: blue) InputIgnition
switch
ONStart confirmation/adjust-
ment mode, and then dis-
play color bar by
selecting“Color Spectrum
Bar” on DISPLAY DIAGNO-
SIS screen. Terminal
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
PKIB4948J
PKIB5039J
SKIB2251J
SKIB2238J
SKIB2237J

AV
DISPLAY UNIT
AV-289
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P19
(G)Ground RGB synchronizing signal InputIgnition
switch
ON—
20
(R)GroundVertical synchronizing (VP)
signalOutputIgnition
switch
ON—
21 — RGB synchronizing ground — — — —
22
(G)GroundCommunication signal
(DISP→CONT)OutputIgnition
switch
ONWhen adjusting display
brightness.
23 — Shield — — — —Te r m i n a l
(Wire color)Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3603E
SKIB3598E
PKIB5039J