INFINITI QX56 2008 Factory Service Manual

AV-140
< ECU DIAGNOSIS >[AUDIO SYSTEM]
AV CONTROL UNIT
Error item
Refer to
CAN COMM CIRCUIT [U1000] AV- 3 6
CONTROL UNIT (CAN) [U1010]AV- 3 7
CONTROL UNIT (AV) [U1310]AV- 6 2
Control Unit FLASH-ROM [U1200]AV- 3 8
Gyro NO CONN [U1201]AV- 3 9
CAN CONT [U1216]AV- 4 4
BLUETOOTH CONN [U1217]AV- 4 5
HDD CONN [U1218]AV- 4 6
HDD READ [U1219]AV- 4 7
XM SERIAL COMM [U1220]AV- 5 4
HDD WRITE [U121A]AV- 4 8
HDD COMM [U121B]AV- 4 9
HDD ACCESS [U121C]AV- 5 0
DSP CONN [U121D]AV- 5 1
DSP COMM [U121E]AV- 5 2
INTERNAL COMM [U121F]AV- 5 3
GPS COMM [U1204]AV- 4 0
GPS ROM [U1205]AV- 4 1
GPS RAM [U1206]AV- 4 2
GPS RTC [U1207]AV- 4 3
FRONT DISP CONN [U1243]AV- 5 5
GPS ANTENNA CONN [U1244]AV- 5 7
CD CHANGER [N-BUS] [U124C]AV- 5 0
CAMERA CONT. CONN [U1250]AV- 5 8
XM ANTENNA CONN [U1258]AV- 6 0
• AV COMM CIRCUIT [U1300]
• SWITCHE CONN [U1240]AV- 6 1
• AV COMM CIRCUIT [U1300]
• REAR CAMERA LAN CONN
[U1252] AV- 6 1
Revision: March 2010
2008 QX56

AV
DISPLAY UNITAV-141
< ECU DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
DISPLAY UNIT
Reference ValueINFOID:0000000001696144
TERMINAL LAYOUT
PHYSICAL VALUES
AWNIA1874ZZ
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
1
(B) Ground Ground
—Ignition
switch
ON —0
V
2
(BR/Y) Ground Inverter VCC
InputIgnition
switch ACC —9
V
3
(B/O) Ground Signal VCC
InputIgnition
switch
ACC —9
V
4—Shield —— — —
5
(L) Ground AUX image ground
—Ignition
switch ON —0
V
6
(B) Ground RGB signal (G: green) Input Ignition
switch
ON Start confirmation/adjust-
ment mode, and then dis-
play color bar by
selecting“Color Spectrum
Bar” on DISPLAY DIAGNO-
SIS screen.
7—Shield —— — —
8
(W/L) Ground Horizontal synchronizing
(HP) signal OutputIgnition
switch ON —
SKIB2236J
SKIB3601E
Revision: March 2010
2008 QX56

AV-142
< ECU DIAGNOSIS >[AUDIO SYSTEM]
DISPLAY UNIT
9
(O) Ground RGB area (YS) signal Input Ignition
switch ON At RGB image displayed
5V
At rear view camera image
displayed
11
(V) Ground Communication signal
(CONT
→DISP) InputIgnition
switch ON When adjusting display-
brightness
13
(B) Ground Inverter ground
—Ignition
switch
ON —0
V
14
(G/O) Ground Signal ground
—Ignition
switch ON —0
V
15
(Y) Ground AUX image signal
InputIgnition
switch ON When AUX mode
is select-
ed
16
(G) —
AUX image synchronizing
signal Input —
— —
17
(W) Ground RGB signal (R: red)
InputIgnition
switch ON Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
18
(R) Ground RGB signal (B: blue) Input Ignition
switch
ON Start 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
Revision: March 2010 2008 QX56

AV
DISPLAY UNITAV-143
< ECU DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P19
(W) Ground RGB synchronizing signal Input Ignition
switch ON —
20
(O/L) Ground Vertical synchronizing (VP)
signal
OutputIgnition
switch On —
21 — Shield — —— —
22
(LG) Ground Communication signal
(DISP
→CONT) OutputIgnition
switch ON When adjusting display-
brightness
23 — Shield — —— —
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3603E
SKIB3598E
PKIB5039J
Revision: March 2010 2008 QX56

AV-144
< ECU DIAGNOSIS >[AUDIO SYSTEM]
BOSE SPEAKER AMP
BOSE SPEAKER AMP
Reference ValueINFOID:0000000001696145
TERMINAL LAYOUT
PHYSICAL VALUES
AWNIA1875ZZ
Terminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
1
(SB) 10
(B/Y) Audio signal rear door
speaker and tweeter LH
OutputIgnition
switch ON Audio output
2
(O/L) 3
(R/L) Audio signal rear door
speaker and tweeter RH
OutputIgnition
switch
ON Audio output
4
(L/W) 5
(L/R) Audio signal front door
speaker and tweeter LH
OutputIgnition
switch ON Audio output
6
(G) 7
(R) Audio signal back door
speaker LH
OutputIgnition
switch
ON Audio output
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
Revision: March 2010
2008 QX56

AV
BOSE SPEAKER AMPAV-145
< ECU DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P8
(W/B) 13
(L/B) Audio signal front door
speaker and tweeter RH
OutputIgnition
switch ON Audio output
9
(W) 14
(B) Audio signal subwoofer Output Ignition
switch ON Audio output
11
(Y) Ground Battery power supply Input Ignition
switch
OFF — Battery voltage
12
(B) Ground Ground
—Ignition
switch ON —0
V
15
(V) 28
(R) Audio signal center speak-
er
OutputIgnition
switch ON Audio output
18
(LG) 32
(V) Audio signal front LH Input Ignition
switch
ON Audio input
19
(B/R) 20
(B/R) Audio signal front RH Input Ignition
switch ON Audio input
21
(L) 22
(B/W) Audio signal rear LH Input Ignition
switch ON Audio input
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
Revision: March 2010 2008 QX56

AV-146
< ECU DIAGNOSIS >[AUDIO SYSTEM]
BOSE SPEAKER AMP
23
(W) 33
(B) Audio signal rear RH Input Ignition
switch ON Audio input
25
(W/G) Ground Subwoofer amp. ON signal Output Ignition
switch ACC —
Battery voltage
31
(GR/L) Ground Amp. ON signal
InputIgnition
switch
ACC —
Battery voltage
37
(W/R) 27
(L) Audio signal back door
speaker RH
InputIgnition
switch
ON Audio input
Terminal
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3609E
SKIB3609E
Revision: March 2010 2008 QX56

AV
REAR VIEW CAMERA CONTROL UNITAV-147
< ECU DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
REAR VIEW CAMERA CONTROL UNIT
Reference ValueINFOID:0000000001696146
TERMINAL LAYOUT
PHYSICAL VALUES
WKIA5224E
Te r m i n a l
(wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
1
(Y) Ground Battery power
InputIgnition
switch
OFF —
Battery voltage
2
(V) Ground ACC power
InputIgnition
switch ACC —
Battery voltage
3
(B) Ground Ground
—Ignition
switch
ON —0
V
4
(G/W) Ground Reverse signal input
InputIgnition
switch ON A/T selector lever R
position
Battery voltage
A/T selector lever in
other than R position 0V
5
(BR) Ground AV Control
OutputIgnition
switch ON —0
V
6
(G/W) Ground DDL
Output ———
8
(Y) Ground Camera power output Output Ignition
switch ON A/T selector lever R
position
6V
9 Ground Camera image input (–) Input Ignition
switch
ON —0
V
10
(G) Ground Camera image input (+) Input Ignition
switch
ON A/T selector lever R
position
SKIA4894E
Revision: March 2010
2008 QX56

AV-148
< ECU DIAGNOSIS >[AUDIO SYSTEM]
REAR VIEW CAMERA CONTROL UNIT
11
(B) Ground Composite image output (-) Output Ignition
switch ON A/T selector lever R
position
12
(W) Ground Composite image output (+) Output Ignition
switch ON A/T selector lever R
position
Te r m i n a l
(wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIA4896E
SKIA4896E
Revision: March 2010 2008 QX56

AV
DVD PLAYERAV-149
< ECU DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
DVD PLAYER
Reference ValueINFOID:0000000001696147
PHYSICAL VALUES
AWNIA1876ZZ
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
1
(W) 2
(B) DVD audio signal LH Output Ignition
switch ON With operation of the DVD
player
3—Shield —— — —
5
(B) Ground Ground
—Ignition
switch ON —0
V
6
(BR) Ground Illumination control (pulse
width modulated) — — With lighting switch ON
—
7
(W/L) Ground Can communication Input/
Output Ignition
switch ON ——
9
(SB) Ground
Video monitor power sup-
ply OutputIgnition
switch
ON With DVD player operation
Battery voltage
10
(G/Y) Ground Switch power
OutputIgnition
switch ON With DVD player operation
5V
12
(B/W) Ground VTR (+)
OutputIgnition
switch ON With DVD player operation
—
13
(L) Ground VTR (-)
OutputIgnition
switch
ON With DVD player operation
—
14
(B/W) Ground Display ground
—Ignition
switch ON With DVD player operation
0V
16
(Y) — Data receive
Input —— —
SKIB3609E
Revision: March 2010 2008 QX56