2006 INFINITI QX56 fuse

AUDIOAV-9
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through audio unit terminals 26, 27, 28 and 29

to terminals 1, 2, 3, and 4 of rear audio remote control unit.
SATELLITE RADIO TUNER (PRE-WIRING)
NOTE:
The satellite radio pre-wiring allows connection of a satellite radio tuner.
Power is supplied at all times

through 20A fuse [No. 31, located in the fuse and fusible link box]

to satellite radio tuner terminal 32.
With the ignition switch in the ACC or ON position, power is supplied

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

to satellite radio tuner terminal 36.
Audio signals are supplied

through satellite radio tuner terminals 21, 22, 23 and 24

to terminals 41, 42, 43 and 44 of audio unit.
Ground is supplied through the case of the satellite radio tuner.
SATELLITE RADIO TUNER (FACTORY INSTALLED)
NOTE:
Factory installed satellite radio systems may be identified by the location of the satellite radio tuner (factory
installed) antenna. Factory installed satellite radio antennas are installed on the front of the roof. Dealer
installed antennas may be installed anywhere on the roof.
Power is supplied at all times

through 20A fuse [No. 31, located in the fuse and fusible link box]

to satellite radio tuner (factory installed) terminal 32.
With the ignition switch in the ACC or ON position, power is supplied

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

to satellite radio tuner (factory installed) terminal 36.
Radio signals are supplied from the satellite radio antenna to satellite radio tuner (factory installed) terminal
37.
Audio signals are supplied

through satellite radio tuner (factory installed) terminals 21, 22, 23 and 24

to terminals 41, 42, 43 and 44 of audio unit.
Ground is supplied through the case of the satellite radio tuner (factory installed).
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.

AUDIOAV-33
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NOTE:
1. The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.

Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.

Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves which reflect off mountains or buildings.
FOR CD ONLY
FOR SATELLITE RADIO TUNER (FACTORY INSTALLED) ONLY
NOTE:
Pressing the SAT button, the display unit will display `NO SAT' when the following conditions exist:

Loss of power to the satellite radio tuner (factory installed)

Open or short in the REQ1, TXD, or RXD circuits.
If the satellite antenna is disconnected or inoperative, the display unit will display ANTENNA.
Noise InspectionEKS00BIH
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Symptom Possible cause
CD cannot be inserted.

CD

Audio unit
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
Symptom
Possible cause
Inoperative

Satellite radio tuner (factory installed) power and ground circuit inspection.
Refer to AV- 3 7 , "
Satellite Radio Tuner (Factory Installed) Power and Ground
Supply Circuit Inspection" .

Satellite radio tuner (factory installed) communication circuit inspection.
Refer to AV- 3 8 , "
Satellite Radio Tuner (Factory Installed) Communication
Circuit Inspection" .
If above check is OK, replace satellite radio tuner (factory installed). Refer
to AV- 5 8 , "
SATELLITE RADIO TUNER" .
Right or left channel does not sound

Satellite radio tuner (factory installed) right channel audio signal circuit
inspection. Refer to AV-41, "
Satellite Radio Tuner (Factory Installed) Right
Channel Audio Signal Circuit Inspection" .

Satellite radio tuner (factory installed) left channel audio signal circuit
inspection. Refer toAV- 4 0 , "
Satellite Radio Tuner (Factory Installed) Left
Channel Audio Signal Circuit Inspection" .
If above check is OK, replace satellite radio tuner (factory installed). Refer to
AV- 5 8 , "
SATELLITE RADIO TUNER" .
Poor reception

Location of vehicle. Make certain vehicle is in an open area.

Satellite radio antenna or antenna feeder. Refer to AV- 6 2 , "Location of
Antenna" .
Noisy

Satellite radio tuner (factory installed) ground.

Satellite radio tuner (factory installed) harness shield wires.

Electrical equipment (generator, bonding wire, etc.). Refer to AV-33, "Noise
Inspection" .

AUDIOAV-35
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Power Supply Circuit InspectionEKS00BII
1. CHECK FUSES
Check that the following fuses are 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" .
UnitTerminals Signal name Fuse No.
Audio unit 6
Battery power 31
10 Ignition switch ACC or ON 4
AV switch 1
Battery power 31
2 Ignition switch ACC or ON 4
BOSE speaker amp. 1Battery power 31
Subwoofer 6Battery power 17

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Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit
Inspection
EKS00GB3
1. CHECK FUSES

Check that the following fuses are 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. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) M41 connector.
3. Check voltage between the satellite radio tuner (factory installed) 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
1. Turn ignition switch OFF.
2. Inspect satellite radio tuner (factory installed) case ground.
3. Disconnect satellite radio tuner (factory installed) connector M41 (A) and audio unit connector M42 (B).
4. Check continuity between satellite radio tuner (factory installed) and audio unit.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness, connector or satellite radio tuner (factory installed) case ground.
Unit Terminals Signal name Fuse No.
Satellite radio tuner (factory
installed) 32
Battery power 31
36 Ignition switch ACC or ON 6
UnitTerminal No.
OFF ACC ON
(+)
(-)
Connector Terminal
Satellite
radio tuner
(factory
installed) M41
32 Ground
Battery
voltage Battery
voltage Battery
voltage
36 Ground 0V Battery
voltage Battery
voltage
WKIA4539E
Terminals
Continuity
Satellite radio tuner (factory
installed) Audio unit
Connector Terminal Connector Terminal
A: M41 25
B: M42 45
Ye s
26 46
WKIA4540E

AV-52
AUDIO
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
WKIA1223E
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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
WKIA1601E

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.

AV-64
TELEPHONE
Revision: November 20092006 QX56
TELEPHONEPFP:28342
Component Parts and Harness Connector LocationEKS00GC0
WKIA4565E
1. Fuse block (J/B)2. Fuse and fusible link box 3. Fuse and relay box
4. Combination meter M24 5. AV switch
M98 6. Audio unit
M45
7. BCM M18, M19 8. Steering wheel audio control
switches 9. Microphone
R108
10. Bluetooth ON indicator R16 11. Bluetooth control unit
B141, B142
(View with seat removed)

AV-72
TELEPHONE
Revision: November 20092006 QX56
Power Supply and Ground Circuit Check for Bluetooth Control UnitEKS00GBQ
1. CHECK FUSES
Make sure the following fuses for the Bluetooth control unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect Bluetooth control unit connector B141.
2. Check voltage between connector terminals and ground as fol- lows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between Bluetooth control unit and fuse.
3. CHECK GROUND CIRCUITS
1. Turn ignition switch OFF.
2. Check continuity between the following Bluetooth control unit terminals and ground.
OK or NG
OK >> Inspection End.
NG >> Repair or replace harness.
Terminals Ignition SwitchFuse No.
Connector Terminal
B141 1
All positions31
2 ACC/ON4
3 ON/START12
Terminals Ignition switch position
(+) (– )OFFACC ON
Connector Terminal
B141 1
Ground Battery
voltage Battery
voltage Battery
voltage
20 VBattery
voltage Battery
voltage
30 V0V Battery
voltage
WKIA4389E
Terminals Continuity
Connector Terminal—
B141 4
Ground Yes
21
WKIA4556E