2008 INFINITI QX56 phone

AV-104
< COMPONENT DIAGNOSIS >[AUDIO SYSTEM]
MICROPHONE SIGNAL CIRCUIT
Check signal between AV control
unit harness connector M45 termi-
nals 71 and 72.
Are voltage readings as specified?
YES >> Replace AV control unit. Refer to AV-164, "Removal and Installation".
NO >> Replace microphone. Refer to AV-182, "
Removal and Installation".
Connector(+) (-)
Reference signal
Terminal Terminal
M45 71 72 While speaking into MIC
ALNIA0423GB
PKIB5037J
Revision: March 2010
2008 QX56

AV
AV CONTROL UNITAV-109
< ECU DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P47
(W) 48
(R) AUX jack audio signal LH Input Ignition
switch ON When AUX mode is select-
ed
58
(O/L) 42
(W) Headphone LH audio sig-
nal
OutputIgnition
switch ON When DVD player is oper-
ating
59
(W/L) 43
(O) Headphone RH audio sig-
nal
OutputIgnition
switch ON When DVD player is oper-
ating
60 — Shield — —— —
62
(B) Ground A/C and AV switch assem-
bly ground —Ignition
switch ON —0
V
63
(B) 48
(R) AUX jack audio signal RH Input Ignition
switch ON When AUX mode is select-
ed
66
(Y) Ground Battery power supply Input Ignition
switch OFF —
Battery voltage
68
(Y) Ground Battery power supply Input Ignition
switch OFF —
Battery voltage
69
(V) Ground ACC power supply
InputIgnition
switch
ACC —
Battery voltage
70
(R/W) Ground MIC power
OutputIgnition
switch ON —5
V
72
(B) 71
(R/L) MIC signal
InputIgnition
switch
ON ——
Te r m i n a l
(Wire color) Description
ConditionReference value
(Approx.)
+ – Signal nameInput/
Output
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
Revision: March 2010 2008 QX56

AV
MULTI AV SYSTEMAV-151
< SYMPTOM DIAGNOSIS > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
SYMPTOM DIAGNOSIS
MULTI AV SYSTEM
Symptom TableINFOID:0000000001696148
AUDIO SYSTEM
NAVIGATION SYSTEM
HANDS-FREE PHONE SYSTEM
REAR VIEW MONITOR
Symptom Possible causeReference page
Inoperative • AV control unit power and ground circuit
• AV control unit •
AV- 6 3
•AV- 2 2
Steering switch does not operate • Steering switch
• AV control unit •
AV- 3 5•AV- 2 2
All speakers do not sound • Speaker circuit shorted to ground
• AV control unit power and ground circuit
• BOSE speaker amp. ON signal
• BOSE speaker amp. power and ground circuit
• BOSE speaker amp.
• AV control unit •
AV- 111
•AV- 6 3
•AV- 1 0 0
•AV- 6 6
•AV- 1 4 4
•AV- 1 0 5
One or several speakers do not sound • Front door speaker
• Front tweeter
• Center speaker
• Rear tweeter
• Rear door speaker
• Back door speaker
• Subwoofer •
AV- 8 0
•AV- 8 3
•AV- 8 6
•AV- 9 1
•AV- 8 8
•AV- 9 4
•AV- 9 7
Symptom Possible causeReference page
Inoperative • AV control unit power and ground circuit
• AV control unit •
AV- 6 3
•AV- 2 2
Steering switch does not operate • Steering switch
• AV control unit •
AV- 1 0 1•AV- 2 2
Voice activated control does not operate • Microphone
• Steering switch
• AV control unit •
AV- 1 0 3•AV- 1 0 1
•AV- 2 2
Symptom Possible causeReference page
Inoperative • AV control unit power and ground circuit
• AV control unit •
AV- 6 3
•AV- 2 2
Steering switch does not operate • Steering switch
• AV control unit •
AV- 1 0 1•AV- 2 2
Voice activated control does not operate • Microphone
• Steering switch
• AV control unit •
AV- 1 0 3•AV- 1 0 1
•AV- 2 2
Revision: March 2010 2008 QX56

AV-152
< SYMPTOM DIAGNOSIS >[AUDIO SYSTEM]
MULTI AV SYSTEM
DVD PLAYER
Symptom
Possible causeReference page
Inoperative • Rear view camera control unit power and ground circuit
• Reverse signal circuit
• Camera ON signal circuit
• Camera image signal circuit (rear view camera to rear
view camera control unit)
• Camera image signal circuit (rear view camera control
unit to AV control unit)
• Rear view camera control unit •
AV- 6 7
•AV- 1 4 7
•AV- 1 4 7
•AV- 1 4 7
•AV- 1 4 7
•AV- 1 4 7
Symptom Possible causeReference page
DVD player inoperative • Power supply and ground circuits
• DVD player •
AV- 6 9
•AV- 1 4 9
No sound when playing a DVD • Audio signal circuits
• AV control unit
• DVD player •
AV- 8 0•AV- 6 3
•AV- 6 9
Video monitor is inoperative/does not display properly • Power supply and ground circuits
• Video out circuit
• DVD player
• Display monitor •
AV- 7 0•AV- 1 4 9
•AV- 6 9
•AV- 7 0
DVD remote control is inoperative/does not operate
properly • DVD player
• Rear audio remote control unit •
AV- 6 9
•AV- 1 0 5
Headphones inoperative • Headphone batteries
• Headphone audio signal circuits from AV control unit
• AV control unit
• Rear audio remote control unit •
AV- 1 4 9•AV- 1 0 5
•AV- 1 0 5
Revision: March 2010 2008 QX56

AV-182
< ON-VEHICLE REPAIR >[AUDIO SYSTEM]
MICROPHONE
MICROPHONE
Removal and InstallationINFOID:0000000001601625
REMOVAL
1. Remove the front roof console finisher. Refer to
INT-17,
"Removal and Installation".
2. Disconnect the Bluetooth microphone connector (A).
3. Detach the Bluetooth microphone (1) from the front roof console finisher and remove the Bluetooth microphone (1).
INSTALLATION
Installation is in the reverse order of removal.
ALNIA0275ZZALNIA0274ZZ
Revision: March 2010 2008 QX56

EC-490
< PRECAUTION >[VK56DE]
PRECAUTIONS
•
Do not depress accelerator pedal when starting.
• Immediately after starting, do not rev up engine unnecessar-
ily.
• Do not rev up engine just prior to shutdown.
• When installing C.B. ham radio or a mobile phone, be sure to
observe the following as it m ay adversely affect electronic
control systems depending on installation location.
- Keep the antenna as far as possi ble from the electronic con-
trol units.
- Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
- Adjust the antenna and feeder line so that the standing-wave
radio can be kept smaller.
- Be sure to ground the radio to vehicle body.
SEF709Y
SEF708Y
Revision: March 2010 2008 QX56

PG-56
< COMPONENT DIAGNOSIS >
HARNESS
FRONT DOOR LH HARNESS
D3 R3 W/2 : Vanity lamp LHD2 R109 W/4 : Microphone
C3 R4 GR/10 : Sunroof motor assembly Room lamp sub-harness B
C2 R6 W/16 : To R101 D1 R200 W/16 : To B145
C3 R7 GR/10 : Auto anti-dazzling inside mirror D1 R201 BR/24 : To B146
B3 R8 W/2 : Vanity lamp RH C2 R202 W/12 : Video monitor
D3 R9 W/8 : To R107 D1 R203 W/3 : Personal lamp 2ND row
Room lamp sub-harness A D2 R204 W/16 : Rear audio remote control unit
C2 R101 W/16 : To R6 E1 R205 W/3 : Personal lamp 3RD row
C3 R102 GR/8 : Front room/map lamp assembly D2 R209 B/6 : Rear air control (rear)
D3 R104 GR/6 : Sunroof switch E1 R210 W/2 : Inside key antenna 4 (over head console area)
ALMIA0215GB
D1 W/24 : To M9 D9 GR/6 : Front power window motor LH
D2 W/16 : To M8 D10 W/16 : Door mirror remote control switch
D3 W10 : To M158 D11 W/2 : Front step lamp LH
D4 W/16 : Door mirror LH D12 W/2 : Front door speaker LH
D5 W/8 : Seat memory switch D14 B/6 : Front door lock assembly LH
D7 W/16 : Main power window and door lock/unlock
switch D15 B/6 : Front outside antenna
D8 W/3 : Main power window and door lock/unlock
switch
D16 GR/2 : Front door request switch LH
Revision: March 2010
2008 QX56