INFINITI QX56 2007 Factory Service Manual

AUDIO
AV-41
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
AV
N
O
P
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector termi-
nals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace BOSE speaker amp. Refer to AV-46, "Removal
and Installation".
NG >> Replace audio unit. Refer to AV-46, "
Removal and
Installation".
Sound Is Not Heard from Rear Door Speaker or Rear Door TweeterINFOID:0000000003533684
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M113 and suspect
speaker connector.
2. Check continuity between BOSE speaker amp. harness connec-
tor terminal M113 and suspect speaker harness connector ter-
minal.
3. Check continuity between BOSE speaker amp. harness connec-
tor M113 terminal and ground.
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nalCon-
nectorTe r m i -
nal
M432
M431
Receive
audio
signal 43
WKIA4553E
SKIA0177E
Te r m i n a l s
Continuity BOSE speaker amp. Speaker or tweeter
Connector Terminal Connector Terminal
M1139
D207+
Ye s 10 -
11
D307+
12 -
9
D208+
10 -
11
D308+
12 -
WKIA1635E

AV-42
< SERVICE INFORMATION >
AUDIO
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.REAR SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M113 and suspect speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor M113 terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace suspect speaker. Refer to AV-46, "Removal
and Installation" or AV-46, "Removal and Installation".
NG >> GO TO 3.
3.HARNESS CHECK
1. Disconnect audio unit connector M44 and BOSE speaker amp. connector M113.
Te r m i n a l s
Continuity BOSE speaker amp.
—
Connector Terminal
M1139
Ground No 10
11
12
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r m i n a lCon-
nec-
torTe r m i n a l
M1139
M11310
Re-
ceive
audio
signal 11 1 2
WKIA4557E
SKIA0177E

AUDIO
AV-43
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
AV
N
O
P
2. Check continuity between audio unit harness connector M44 ter-
minals and BOSE speaker amp. harness connector M113 termi-
nals.
3. Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 4.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
4.REAR SPEAKER SIGNAL CHECK
1. Connect audio unit connector M44 and BOSE speaker amp. connector M113.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M44
terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace BOSE speaker amp. Refer to AV-46, "Removal
and Installation".
NG >> Replace audio unit. Refer to AV-46, "
Removal and
Installation".
Te r m i n a l s
Continuity Audio unit BOSE speaker amp.
Connector Terminal Connector Terminal
M4413
M11325
Ye s 14 26
15 23
16 24
Te r m i n a l s
Continuity Audio unit
—
Connector Terminal
M4413
Ground No 14
15
16
SKIA4315E
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nectorTe r m i -
nalCon-
nectorTe r m i n a l
M4414
M4413
Re-
ceive
audio
signal 16 15
WKIA4558E
SKIA0177E

AV-44
< SERVICE INFORMATION >
AUDIO
Sound Is Not Heard from Center Speaker
INFOID:0000000003533685
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M112 and center speaker connector M110.
2. Check continuity between BOSE speaker amp. harness connec-
tor M112 terminals and center speaker harness connector M110
terminals.
3. Check continuity between BOSE speaker amp. harness connec-
tor M112 terminals and ground.
OK or NG
OK >> GO TO 2.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.CENTER SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector M112 and center speaker connector M110.
2. Turn ignition switch to ACC.
3. Push the “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connec-
tor M112 terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace center speaker. Refer to AV-46, "Removal and Installation".
NG >> Replace BOSE speaker amp. Refer to AV-46, "
Removal and Installation".
Sound Is Not Heard from SubwooferINFOID:0000000003533686
1.CHECK FUSE
Te r m i n a l s
Continuity BOSE speaker amp. Center speaker
Connector Terminal Connector Terminal
M1122
M110-
Ye s
18 +
Te r m i n a l s
Continuity BOSE speaker amp.
—
Connector Terminal
M1122
Ground No
18
WKIA1222E
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r m i n a lCon-
nec-
torTe r m i n a l
M112 18 M112 2Re-
ceive
audio
signal
WKIA1223E
SKIA0177E

AUDIO
AV-45
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
AV
N
O
P
Check that the following fuse is not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
3.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect subwoofer connector.
2. Check voltage between the subwoofer and ground.
OK or NG
OK >> GO TO 3.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Check continuity between subwoofer harness connector B72 termi-
nal 5 and ground.
OK or NG
OK >> GO TO 4.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
4.CHECK SUBWOOFER AMP. ON SIGNAL
1. Operate system and check voltage between subwoofer harness
connector B72 terminal 4 and ground.
OK or NG
OK >> GO TO 5.
NG >> • Check connector housings for disconnected or loose
terminals.
• Repair harness or connector.
5.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector M112 and subwoofer connector B72.
Unit Terminal Signal name Fuse No.
Subwoofer 6 Battery power 17
UnitTerminal No.
OFF ACC ON (+)
(-)
Connector Terminal
Subwoof-
erB72 6 GroundBattery
voltageBattery
voltageBattery
voltage
WKIA1601E
Continuity should exist.
WKIA1602E
Voltage : More than approx. 6.5V
WKIA2078E

AV-46
< SERVICE INFORMATION >
AUDIO
2. Check continuity between BOSE speaker amp. harness connec-
tor terminal and subwoofer harness connector harness connec-
tor terminal.
3. Check continuity between BOSE speaker amp. harness connec-
tor terminal and ground.
OK or NG
OK >> GO TO 6.
NG >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
6.SUBWOOFER SIGNAL CHECK
1. Connect BOSE speaker amp. connector and subwoofer connector.
2. Turn ignition switch to ACC.
3. Check the signal between BOSE speaker amp. harness connec-
tor terminals with CONSULT-II or oscilloscope.
OK or NG
OK >> Replace subwoofer. Refer to AV-46, "Removal and Installation".
NG >> Replace BOSE speaker amp. Refer to AV-46, "
Removal and Installation".
Removal and InstallationINFOID:0000000003533687
AUDIO UNIT
Removal
1. Remove cluster lid C. Refer to IP-10.
Te r m i n a l s
Continuity BOSE speaker amp. Subwoofer
Connector Terminal Connector Terminal
M1123
B721
Ye s
19 2
Te r m i n a l s
Continuity BOSE speaker amp.
—
Connector Terminal
M1123
Ground No
19
WKIA1604E
Te r m i n a l s
Condi-
tionReference
signal (+) (-)
Con-
nec-
torTe r -
minalCon-
nec-
torTe r -
minal
M112 19 M112 3Receive
audio
signal
WKIA1170E
SKIA0177E

AUDIO
AV-47
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
AV
N
O
P
2. Remove audio unit screws, using power tool.
3. Pull out audio unit and disconnect audio unit connectors.
Installation
Installation is in the reverse order of removal.
AV SWITCH
Removal
1. Disconnect battery negative terminal.
2. Remove center console. Refer to IP-10
.
3. Disconnect center speaker.
4. Remove AV switch screws.
5. Carefully remove the AV switch.
Installation
Installation is in the reverse order of removal.
BOSE SPEAKER AMP.
Removal
1. Remove the accelerator pedal. Refer to ACC-3.
2. Remove BCM. Refer to BCS-24, "
BCM".
3. Disconnect Bose speaker amp. and satellite radio tuner (if equipped) connectors.
4. Remove Bose speaker amp./satellite radio tuner bracket screws
and slide Bose speaker amp./satellite radio tuner bracket down.
WKIA1490E
WKIA1798E
WKIA1605E

AV-48
< SERVICE INFORMATION >
AUDIO
5. Remove Bose speaker amp. screws (A) and remove Bose
speaker amp. from Bose speaker amp./satellite radio tuner
bracket.
Installation
Installation is in the reverse order of removal.
CENTER SPEAKER
Removal
1. Remove center console. Refer to IP-10.
2. Remove cluster lid D. Refer to IP-10
.
3. Disconnect center speaker connectors.
4. Remove the center speaker screws and remove the center
speaker.
Installation
Installation is in the reverse order of removal.
FRONT DOOR SPEAKER
Removal
1. Remove front door finisher. Refer to EI-31.
2. Remove the four front door speaker screws.
3. Disconnect connector and remove front door speaker.
Installation
Installation is in the reverse order of removal.
FRONT TWEETER
Removal
1. Remove front tweeter grille. Refer to IP-10, "Removal and Installation".
LKIA0678E
WKIA1799E
WKIA1498E

AUDIO
AV-49
< SERVICE INFORMATION >
C
D
E
F
G
H
I
J
L
MA
B
AV
N
O
P
2. Remove front tweeter screws (A).
3. Disconnect connector and remove front tweeter.
Installation
Installation is in the reverse order of removal.
REAR AUDIO REMOTE CONTROL UNIT
Removal
1. Carefully remove the rear audio remote control unit from the rear
roof console assembly.
CAUTION:
Wrap removal tool with clean shop cloth to prevent damage
to the headliner.
2. Disconnect connectors and remove the rear audio remote con-
trol unit.
Installation
Installation is in the reverse order of removal.
REAR DOOR SPEAKER
Removal
1. Remove rear door finisher. Refer to EI-31.
2. Remove the three rear door speaker screws and remove rear
door speaker.
3. Disconnect rear door speaker connector.
Installation
Installation is in the reverse order of removal.
REAR DOOR TWEETER
Removal
1. Remove rear door finisher. Refer to EI-31.
WKIA4167E
BKIA0227E
WKIA1492E

AV-50
< SERVICE INFORMATION >
AUDIO
2. Remove rear door tweeter screws and remove rear door
tweeter.
3. Disconnect rear door tweeter connector.
Installation
Installation is in the reverse order of removal.
SATELLITE RADIO ANTENNA
Removal
1. Lower headliner. Refer to EI-37.
2. Disconnect satellite radio antenna connector.
3. Remove satellite radio antenna nut.
4. Remove satellite radio antenna.
Installation
Installation is in the reverse order of removal.
SATELLITE RADIO TUNER
Removal
1. Remove BCM. Refer to BCS-24, "BCM".
2. Remove the accelerator pedal. Refer to ACC-3
.
3. Disconnect Bose speaker amp. and satellite radio tuner connectors.
4. Remove Bose speaker amp./satellite radio tuner bracket screws
and slide Bose speaker amp./satellite radio tuner bracket down.
WKIA1494E
LKIA0679E
WKIA1605E