2007 INFINITI QX56 audio

AV-58
< SERVICE INFORMATION >
TELEPHONE
Audio Unit
The audio unit receives signals from the Bluetooth control unit and sends audio signals to the speakers.
Wiring Diagram - H/PHONE -INFOID:0000000003533694
WKWA3603E

AV-60
< SERVICE INFORMATION >
TELEPHONE
Terminal and Reference Value for Bluetooth Control Unit
INFOID:0000000003533695
Bluetooth Control Unit Self-Diagnosis FunctionINFOID:0000000003533696
The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically
every ignition cycle during control unit initialization. The second diagnostic check is performed by the techni-
cian using the steering wheel audio control switches prior to trouble diagnosis.
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)Example of symptom
+–Ignition
switchOperation
1 (Y) GroundBattery pow-
erInput – – Battery voltageSystem does not
work properly.
2 (V) Ground ACC power InputACC/
ON– Battery voltageSystem does not
work properly.
3 (G/R) Ground IGN power InputON/
START– Battery voltageSystem does not
work properly.
4 (B) – Ground – – – – –
6–Shield –– – – –
7 (B) 8 (R/L) Mic-in signal Input ON – – –
9 (R/W) 10 (R) Audio out Output – – – –
11 ( B ) – M u t e – – – – –
12 (R/G) GroundRemote
control AInput ONPress MODE
switch Approx. 0V
Steering wheel audio
controls do not func-
tion. Press SEEK UP
switchApprox. 0.75V
Press VOL UP
switchApprox. 2V
Except for above Approx. 5V
13 (G/W) GroundRemote
control BInput ONPress POWER
switch Approx. 0V
Steering wheel audio
controls do not func-
tion. Press SEEK
DOWN switchApprox. 0.75V
Press VOL
DOWN switchApprox. 2V
Except for above Approx. 5V
14 (Y/R) -Remote
control
ground-- - -Steering wheel audio
controls do not func-
tion.
15 (GR) - LED - - - - -
17 (V) - - - - - - -
18 (G/O) - - - - - - -
19 (R/B) - - - - - - -
21 (B) – Ground – – – – –
28 (W/R) –Speed sig-
nal–– – – –
29 (R/W) –Microphone
power–– – – –
33 –Bluetooth
antenna sig-
nalInput – – – –

TELEPHONE
AV-61
< SERVICE INFORMATION >
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BLUETOOTH CONTROL UNIT INITIALIZATION CHECKS
• Internal control unit failure
• Bluetooth antenna connection open or shorted
• Steering wheel audio control switches (SEND/END) stuck closed
• Vehicle speed pulse count
• Microphone connection test (with playback to operator)
• Bluetooth inquiry check
STARTING THE DIAGNOSTIC MODE
1. Turn ignition switch to ACC or ON.
2. Wait for the Bluetooth system to complete initialization and the Bluetooth ON indicator to stop flashing.
This may take up to 10 seconds.
3. Press and hold the steering wheel audio control switch SEND
button for at least 5 seconds. The Bluetooth system will begin to
play a verbal prompt.
4. While the prompt is playing, momentarily press both the steering
wheel audio control switches SEND and END buttons simulta-
neously. The Bluetooth system will sound a 5 second beep.
5. While the beep is sounding, momentarily press both the steering
wheel audio control switches SEND and END buttons simulta-
neously again.
6. The Bluetooth system has now entered into the diagnostic
mode. Results of the diagnostic checks will be verbalized to the
technician by the system.
Power Supply and Ground Circuit Inspection for Bluetooth Control UnitINFOID:0000000003533697
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 blown fuse before installing new fuse. Refer to PG-
3.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect Bluetooth control unit connector B141.
WKIA4446E
WKIA4447E
Te r m i n a l s
Ignition Switch Fuse No.
Connector Terminal
B1411 All positions 31
2 ACC/ON 4
3 ON/START 12

AV-64
< SERVICE INFORMATION >
DVD ENTERTAINMENT SYSTEM
DVD ENTERTAINMENT SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000003533699
DescriptionINFOID:0000000003533700
Refer to Owner's Manual for DVD entertainment system operating instructions.
Power is supplied at all times
• through 20A fuse (No. 31, located in the fuse and fusible link box)
• to DVD player terminal 16.
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 DVD player terminal 15.
Power is also supplied
• from DVD player terminals 31 and 32
WKIA4570E
1. Fuse block (J/B)
M42. Fuse and fusible link box 3. Audio Unit
M46
4. DVD player
M205, M2065. Video Monitor
R202

DVD ENTERTAINMENT SYSTEM
AV-65
< SERVICE INFORMATION >
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• to video monitor terminals 11 and 12.
Ground is supplied
• to DVD player terminal 22
• through body grounds M57, M61 and M79.
Audio signals are supplied
• through DVD player terminals 1, 2, 3 and 4
• to audio unit terminals 34, 35, 36 and 37.
Video signals are supplied
• through DVD player terminals 23, 24, 28 and 29
• to video monitor terminals 5, 6, 7 and 8.

AV-70
< SERVICE INFORMATION >
DVD ENTERTAINMENT SYSTEM
Trouble Diagnosis
INFOID:0000000003533703
Power Supply Circuit InspectionINFOID:0000000003533704
1.CHECK FUSES
Check that the following fuses are not blown.
Symptom Possible causes Repair order
DVD player inoperative1. Power supply
2. Ground circuit
3. Audio enable circuit
4. DVD enable signal
5. Audio enable signal
6. DVD player
7. Audio unit1. Refer to AV- 7 0 , "
Power Supply Circuit Inspection".
2. Refer to AV- 7 0 , "
Power Supply Circuit Inspection".
3. Check audio enable circuits for open or short be-
tween audio unit terminals 39, 40 and DVD player
terminals 11, 9.
4. Push power switch of DVD player and verify approx.
5V is present at terminal 39 of audio unit.
5. Push power switch of DVD player and verify approx.
5V is present at terminal 9 of DVD player.
6. Remove DVD player for repair.
7. Remove audio unit for repair.
No sound when playing
DVD1. Audio signal circuits
2. DVD player
3. Audio unit1. Check audio signal circuits for open or short be-
tween DVD player terminals 1, 2, 3 and 4 and audio
unit terminals 34, 35, 36 and 37.
2. Remove DVD player for repair.
3. Remove audio unit for repair.
Video monitor is inopera-
tive/does not operate prop-
erly1. Power supply
2. Video monitor ground circuit
3. Video circuits
4. Data signal
5. Video monitor
6. DVD player1. Operate DVD player and verify battery positive volt-
age is present at terminals 11 and 12 of video moni-
tor. Verify approximately 5 volts is present at terminal
10 of video monitor.
2. Check video monitor ground circuits between DVD
player terminals 19 and 27 and video monitor termi-
nals 1 and 2.
3. Check video circuits between DVD player terminals
23 and 24 and video monitor terminals 7 and 8.
4. Check data signal circuit for open or short between
DVD player terminal 29 and video monitor terminal
5.
5. Remove video monitor for repair.
6. Remove DVD player for repair.
DVD remote control is inop-
erative/does not operate
properly1. Data signal
2. DVD player remote control batteries
3. DVD player remote control
4. Video monitor1. Check data signal circuit for open or short between
DVD player terminal 28 and video monitor terminal
6.
2. Replace DVD player remote control batteries.
3. Replace DVD player remote control.
4. Remove video monitor for repair.
Headphones inoperative 1. Headphone batteries
2. Headphones
3. Rear audio remote control unit1. Replace headphone batteries.
2. Replace headphones.
3. Replace rear audio remote control unit.
Snowy video/poor audio 1. Harness or connectors
2. DVD player1. Check harness and connectors for open or short.
2. Check DVD player.
Snowy video (audio OK) 1. Harness or connectors
2. DVD player1. Check harness and connectors for open or short.
2. Check DVD player.
No video (audio OK) 1. Harness or connectors
2. DVD player
3. Video monitor1. Check harness and connectors for open or short.
2. Check DVD player.
3. Check video monitor.
Dim video (audio OK) 1. Harness or connectors
2. DVD player
3. Video monitor1. Check harness and connectors for open or short.
2. Check DVD player.
3. Check video monitor.

NAVIGATION SYSTEM
AV-75
< SERVICE INFORMATION >
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• Position correction by GPS is not available while the vehicle is stopped.
COMPONENT DESCRIPTION
NAVI Control Unit
• The gyro (angular speed sensor) and the DVD-ROM drive are
built-in units that control the navigation functions.
• Signals are received from the gyro, the vehicle speed sensor, and
the GPS antenna. Vehicle location is determined by combining this
data with the data contained in the DVD-ROM map. Location infor-
mation is shown on liquid crystal display (display unit).
• Maps, traffic control regulations, and other pertinent information
can be easily read from the DVD-ROM disc.
• The oscillator gyro sensor is used to detect changes in vehicle
steering angle.
Map DVD-ROM
• The map DVD-ROM has maps, traffic control regulations, and other pertinent information.
• To improve DVD-ROM map matching and route determination functions, the DVD-ROM uses an exclusive
Nissan format. Therefore, the use of a DVD-ROM provided by other manufacturers cannot be used.
Display Control Unit
The display control unit coordinates audio and video signals between the NAVI control unit and the display
unit.
Display Unit
Displays NAVI system information.
AV Switch
AV switch allows user to input NAVI display settings. Self diagnostics are initiated using AV switch.
GPS Antenna
GPS antenna sends signals to NAVI control unit.
CAN Communication System DescriptionINFOID:0000000003533707
Refer to LAN-4.
WKIA4593E

AV-76
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Component Parts Location
INFOID:0000000003533708
WKIA4571E
1. Fuse block (J/B) 2. Fuse and fusible link box 3. Combination switch
M28
4. Combination meter
M245. GPS antenna 6. Display unit
M93
7. Display control unit
M94, M958. AV switch
M989. Audio unit
M45
10. Data link connector
M2211 . B C M
M18, M2012. Steering wheel audio control switches
13. NAVI control unit
B151, B152, B15414. IPDM E/R
E121, E124