Infiniti G37 Coupe. Manual — part 77
AV
AV CONTROL UNIT
AV-61
< ECU DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
6
(G)
15
(B)
Steering switch signal A
Input
Ignition
switch
ON
Keep 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)
Ground
ACC power supply
Input
Ignition
switch
ACC
—
Battery voltage
8
(B)
Ground
GND
—
Ignition
switch
ON
—
0 V
9
(L)
Ground
Illumination signal
Input
OFF
Lighting switch is OFF.
0 V
Lighting switch is ON.
12 V
11
(BR)
12
(R)
Sound signal door speaker
RH
Output
Ignition
switch
ON
Voice output
13
(L)
14
(P)
Sound signal rear speaker
RH
Output
Ignition
switch
ON
Voice output
15
(B)
Ground
Steering switch signal GND
—
Ignition
switch
ON
—
0 V
16
(L)
15
(B)
Steering switch signal B
Input
Ignition
switch
ON
Keep 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
Input
Ignition
switch
OFF
—
Battery voltage
20
(B)
Ground
GND
—
Ignition
switch
ON
—
0 V
22
(R)
21
(W)
Satellite radio sound signal
LH
Input
Ignition
switch
ON
When satellite radio mode
is selected
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIB3609E
SKIB3609E
AV-62
< ECU DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
AV CONTROL UNIT
24
(B)
23
(G)
Satellite radio sound signal
RH
Input
Ignition
switch
ON
When satellite radio mode
is selected
25
—
Shield
—
—
—
—
26
—
Shield
—
—
—
—
28
(W)
Ground
Request signal
(SAT
→
CONT)
Input
Ignition
switch
ON
When satellite radio mode
is selected
29
(B)
Ground
Communication signal
(SAT
→
CONT)
Input
Ignition
switch
ON
When satellite radio mode
is selected
30
(R)
Ground
Communication signal
(CONT
→
SAT)
Output
Ignition
switch
ON
When satellite radio mode
is selected
33
—
FM sub
Input
—
—
—
34
—
AM–FM main
Input
—
—
—
35
Ground
Antenna amp. ON signal
Output
Ignition
switch
ACC
—
12 V
36
(R)
Ground
AUX image signal
Output
Ignition
switch
ON
At AUX image is displayed
37
(L)
Ground
AUX image GND
—
Ignition
switch
ON
—
0 V
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIA9299J
SKIA9300J
SKIA9301J
SKIB2251J
AV
AV CONTROL UNIT
AV-63
< ECU DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
38
(P)
Ground
RGB signal (B: blue)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
39
(L)
Ground
RGB signal (G: green)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
40
(G)
Ground
RGB signal (R: red)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
41
(Y)
Ground
RGB synchronizing signal
Output
Ignition
switch
ON
—
42
—
Shield
—
—
—
—
43
(P)
Ground
RGB area (YS) signal
Output
Ignition
switch
ON
At RGB image is displayed
5 V
At AUX image is displayed
44
(G)
Ground
Communication signal
(DISP
→
CONT)
Input
Ignition
switch
ON
When adjusting display-
brightness.
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB2237J
SKIB2236J
SKIB2238J
SKIB3603E
PKIB4948J
PKIB5039J
AV-64
< ECU DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
AV CONTROL UNIT
45
(LG)
Ground
Horizontal synchronizing
(HP) signal
Input
Ignition
switch
ON
—
46
(LG)
Ground
Signal GND
—
Ignition
switch
ON
—
0 V
47
(O)
Ground
Signal VCC
Output
Ignition
switch
ACC
—
9 V
49
—
Shield
—
—
—
—
50
—
Shield
—
—
—
—
55
—
Shield
—
—
—
—
56
(L)
Ground
Communication signal
(CONT
→
DISP)
Output
Ignition
switch
ON
When adjusting display-
brightness.
57
(GR)
Ground
Vertical synchronizing (VP)
signal
Input
Ignition
switch
ON
—
58
(BR)
Ground
Inverter GND
—
Ignition
switch
ON
—
0 V
59
(Y)
Ground
Inverter VCC
Output
Ignition
switch
ACC
—
9 V
66
(R)
Ground
AUX image signal
Input
Ignition
switch
ON
When AUX mode is select-
ed
73
—
Shield
—
—
—
—
74
(L)
Ground
AUX image signal GND
—
Ignition
switch
ON
—
0 V
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3601E
PKIB5039J
SKIB3598E
SKIB2251J
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