audio INFINITI QX56 2006 Factory Workshop Manual

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Revision: November 2009 2006 QX56
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- 5 5 , "BOSE
SPEAKER AMP." .
NG >> Replace audio unit. Refer to AV- 5 5 , "
Removal and
Installation" .
Sound Is Not Heard From Center SpeakerEKS00BIO
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.
Terminals Condi-tion Reference
signal
(+)
(-)
Con-
nector Te r m i -
nal Con-
nector Terminal
M44 14
M44 13
Receive
audio
signal
16
15
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Terminals
Continuity
BOSE speaker amp. Center speaker
Connector Terminal Connector Terminal
M112 2
M110 -
Ye s
18 +
Te r m i n a l s Continuity
BOSE speaker amp.
—
Connector Terminal
M112 2
Ground No
18
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Revision: November 20092006 QX56
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- 5 6 , "CENTER SPEAKER" .
NG >> Replace BOSE speaker amp. Refer to AV- 5 5 , "
BOSE SPEAKER AMP." .
Sound Is Not Heard From SubwooferEKS00BIP
1. CHECK FUSE
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 problem before installing new fuse. Refer to PG-4,
"POWER SUPPLY ROUTING CIRCUIT" .
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.
Terminals
Condi-tion Reference
signal
(+) (-)
Con- nec- tor Terminal Con-
nec- tor Terminal
M112 18 M112 2 Receive
audio
signal
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Unit
Terminal Signal name Fuse No.
Subwoofer 6Battery power 17
UnitTerminal No.
OFF ACC ON
(+)
(-)
Connector Terminal
Sub-
woofer B72 6 Ground Battery
voltage Battery
voltage Battery
voltage
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Revision: November 2009 2006 QX56
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.
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.
Continuity should exist.
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Voltage
: More than approx. 6.5V
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Terminals
Continuity
BOSE speaker amp. Subwoofer
Connector Terminal Connector Terminal
M112 3
B72 1
Ye s
19 2
Terminals Continuity
BOSE speaker amp.
—
Connector Terminal
M112 3
GroundNo
19
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Revision: November 20092006 QX56
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- 5 9 , "SUBWOOFER" .
NG >> Replace BOSE speaker amp. Refer to AV- 5 5 , "
BOSE SPEAKER AMP." .
Terminals
Condi-tion Reference
signal
(+) (-)
Con- nec-
tor Te r -
minal Con-
nec-
tor Te r -
minal
M112 19 M112 3 Receive
audio
signal
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Revision: November 2009 2006 QX56
Removal and InstallationEKS00BIQ
AUDIO UNIT
Removal
1. Remove cluster lid C. Refer to IP-12, "Removal" .
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 S W I T C H
Removal
1. Disconnect battery negative terminal.
2. Remove center console. Refer to IP-16, "
REMOVAL AND INSTALLATION" .
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, "ACCELERATOR CONTROL SYSTEM" .
2. Remove BCM. Refer to BCS-20, "
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.
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Revision: November 20092006 QX56
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-16, "REMOVAL AND INSTALLATION" .
2. Remove cluster lid D. Refer to IP-12, "
Removal" .
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-32, "DOOR FINISHER" .
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, "INSTRUMENT PANEL ASSEMBLY" .
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Revision: November 2009 2006 QX56
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 connector and remove the rear audio remote control unit.
Installation
Installation is in the reverse order of removal.
REAR DOOR SPEAKER
Removal
1. Remove rear door finisher. Refer to EI-32, "DOOR FINISHER" .
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-32, "DOOR FINISHER" .
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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-38, "HEADLINING" .
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-20, "BCM" .
2. Remove the accelerator pedal. Refer to ACC-3, "
ACCELERATOR CONTROL SYSTEM" .
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.
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Revision: November 2009 2006 QX56
5. Remove satellite radio tuner screws (A) and remove satellite
radio tuner from Bose speaker amp./satellite radio tuner bracket
(1).
Installation
Installation is in the reverse order of removal.
STEERING WHEEL AUDIO CONTROL SWITCHES
Removal
1. Remove steering wheel. Refer to PS-8, "Removal and Installation" .
2. Remove steering wheel rear cover screws and remove steering wheel rear cover.
3. Remove steering wheel switch assembly screws and steering wheel switches.
Installation
Installation is in the reverse order of removal.
SUBWOOFER
Removal
1. Remove front driver seat. Refer to SE-91, "Removal and Installation" .
2. Remove the subwoofer bolts.
3. Disconnect subwoofer connector and remove the subwoofer.
Installation
Installation is in the reverse order of removal.
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AV-60
AUDIO ANTENNA
Revision: November 20092006 QX56
AUDIO ANTENNAPFP:28200
System DescriptionEKS00BJ1
With the ignition switch in ACC or ON, power is supplied

through 10A fuse [No. 4, located in the fuse block (J/B)]

to audio unit terminal 10.
Ground is supplied through the case of the antenna amp.
When the audio unit switch is turned ON, antenna signal is supplied

through audio unit terminal 5

to the antenna amp. terminal 1.
Then the antenna amp. is activated.
The amplified radio signals are supplied to the audio unit through the antenna amp.