Infiniti G37 Coupe. Manual — part 109
AV
AV CONTROL UNIT
AV-189
< ECU DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
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
Keep pressing
switch.
1.3 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
24
(B)
23
(G)
Satellite radio sound signal
RH
Input
Ignition
switch
ON
When satellite radio mode
is selected
25
—
Shield
—
—
—
—
26
—
Shield
—
—
—
—
27
(SB)
Ground
Mode change signal
Output
Ignition
switch
ON
Driver's Audio Stage ON
0 V
Driver's Audio Stage OFF
8.5 V
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
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3609E
SKIB3609E
SKIA9299J
SKIA9300J
AV-190
< ECU DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AV CONTROL UNIT
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 ground
—
Ignition
switch
ON
—
0 V
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.
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIA9301J
SKIB2251J
SKIB2237J
SKIB2236J
SKIB2238J
AV
AV CONTROL UNIT
AV-191
< ECU DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
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 displayed
5 V
At AUX image is displayed
44
(G)
Ground
Communication signal
(DISP
→
CONT)
Input
Ignition
switch
ON
When adjusting display-
brightness.
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.
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3603E
PKIB4948J
PKIB5039J
SKIB3601E
PKIB5039J
AV-192
< ECU DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AV CONTROL UNIT
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
At AUX image is displayed
73
—
Shield
—
—
—
—
74
(L)
Ground
AUX image signal GND
—
Ignition
switch
ON
—
0 V
80
(L)
79
(P)
TEL voice signal
Input
Ignition
switch
ON
During voice guide output
with the
switch pressed
81
—
Shield
—
—
—
—
83
(B)
82
(G)
iPod sound signal RH
Input
Ignition
switch
ON
When iPod mode is select-
ed
85
(B)
Ground
GND
—
Ignition
switch
ON
—
0 V
86
(L)
—
CAN–H
Input/
Output
—
—
—
87
(P)
—
CAN–L
Input/
Output
—
—
—
88
(G)
—
AV communication signal
(H)
Input/
Output
—
—
—
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3598E
SKIB2251J
SKIB3609E
SKIB3609E
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