Infiniti G37 Coupe. Manual - part 158

AUDIO SYSTEM

AV-385

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

Satellite Radio Mode

• Satellite radio tuner is built into AV control unit.
• Audio signal (satellite radio) is received by satellite antenna, and it is input to AV control unit. AV control unit

outputs audio signal to BOSE amp. The signal is also outputted from BOSE amp. to both woofer amp. and
each speaker.

CD Mode

• CD function is built into AV control unit.
• AV control unit outputs audio signal to BOSE amp. and BOSE amp. outputs to woofer amp. and each

speaker when CD is inserted to AV control unit.

Music Box Mode

• Music CD data is stored on HDD that is built into AV control unit, and it can be played.
• AV control unit outputs music (audio signal) that is stored on HDD to BOSE amp., and BOSE amp. outputs to

woofer amp. and each speaker.

CF Mode

• AV control unit has built in CF replay function.
• Music (audio signal) that is stored in CF outputs to BOSE amp., and BOSE amp. outputs to woofer amp. and

each speaker when CF is inserted into AV control unit.

iPod Connection

• Connect iPod

and iPod adapter with wire harness and iPod adapter input iPod sound signal from iPod

When iPod mode is selected, iPod adapter output iPod sound signal to AV control unit. AV control unit output
sound signal to BOSE amp., and BOSE amp. output sound signal to woofer amp. and each speaker.

• Receiving/transmitting of iPod

operation signals are performed as follows:

- between AV control unit and iPod adapter: AV communication.
- between iPod

and iPod adapter: serial communication.

• The iPod

connection status can be recognized whether iPod adapter receives iPod connection recognition

signal.

• The iPod adapter is possible to charge iPod

Driver's Audio Stage Mode

• Driver's Audio Stage controls the speaker's output characteristic by BOSE amp. so that the driver's seat is to

be the center of sounds.

• ON/OFF signals of Driver's Audio Stage are transmitted from AV control unit to BOSE amp. using Mode sig-

nal.

AV-386

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

AUDIO SYSTEM

Component Parts Location

INFOID:0000000001680247

Center speaker

Tweeter LH

Door squawker LH

Door woofer LH

Rear speaker LH

Antenna amp.

BOSE amp.

Woofer amp.

Rear woofer LH

10. Rear view camera

11. Camera control unit

12. Rear woofer RH

13. Rear speaker RH

14. Satellite radio antenna

15. Door woofer RH

16. Door squawker RH

17. Tweeter RH

18. Microphone

19. GPS antenna

20. iPod adapter

21. Steering switch

22. Steering angle sensor

23. Preset switch

24. Auxiliary input jacks

25. iPod connector

26. AV control unit

27. Multifunction switch

28. Display unit

Within rear pillar finisher LH

Trunk room LH

Trunk room RH

Instrument panel rear side

Rear view of the display

Spiral cable part

JPNIA0468ZZ

AUDIO SYSTEM

AV-387

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

Component Description

INFOID:0000000001558785

Part name

Description

AV CONTROL UNIT

• Receiving function of AM/FM/satellite radio, replaying function of CD, replay-

ing/saving function of music box (HDD), replaying function of CF and voice
recognition function are integrated.

• Audio signal is output to BOSE amp. from each function.

DISPLAY UNIT

• Display image is controlled by the serial communication from AV control unit.
• RGB image signal (audio operation condition) is input from AV control unit.
• Touch panel function can be operated for each system by touching a display

directly.

BOSE AMP.

Inputs power (amp ON) and sound signal from AV control unit, and outputs
sound signal to woofer amp. and each speaker.

WOOFER AMP.

Inputs power (amp ON) and sound signal from BOSE amp., and outputs sound
signal to each woofer.

DOOR WOOFER

• Outputs sound signal from BOSE amp.
• Outputs low-pitched sound.

DOOR SQUAWKER

• Outputs sound signal from BOSE amp.
• Outputs midrange sound.

REAR SPEAKER

• Outputs sound signal from BOSE amp.
• Outputs high, mid and low range sounds.

TWEETER

• Outputs sound signal from BOSE amp.
• Outputs high range sound.

CENTER SPEAKER

• Outputs sound signal from BOSE amp.
• Outputs high, mid and low range sounds.

REAR WOOFER

• Outputs sound signal from woofer amp.
• Outputs low-pitched sound.

MULTIFUNCTION SWITCH

• Each audio operation can be operated.
• Connected with preset switch via cable, and operation signal is transmitted

to AV control unit via AV communication.

PRESET SWITCH

• Each audio operation can be operated.
• Connected with multifunction switch via cable, and operation signal is trans-

mitted to AV control unit via AV communication.

• The CD ejection operating signal is performed by hardwire.

STEERING SWITCH

• Each audio operation can be operated.
• Steering switch signal (operation signal) is output to AV control unit.

MICROPHONE

• It is used for voice activated operation
• Pronounced voice is converted to voice signal and transmitted to AV control

unit.

ANTENNA AMP.

• Radio signal received by glass antenna is amplified and transmitted to AV

control unit.

• Power (antenna amp ON signal) is supplied from AV control unit.

SATELLITE RADIO ANTENNA

Audio signal (satellite radio) is received and output to AV control unit.

iPod ADAPTER

• Inputs iPod sound signal from iPod

, and outputs iPod sound signal to AV

control unit.

• Receiving/transmitting of iPod

operation signals are performed as follows:

- between AV control unit and iPod adapter: AV communication.

- between iPod

and iPod adapter: serial communication.

AV-388

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Diagnosis Description

INFOID:0000000001558786

MULTIFUNCTION SWITCH AND PRESET SWITCH SELF-DIAGNOSIS FUNCTION

The ON/OFF operation (continuity) of each switch in the multifunction switch and preset switch can be
checked.

Self-diagnosis mode

• Press the “BACK” switch and the “UP” switch of the 8-direction

switches within 10 seconds after turning the ignition switch from
OFF to ACC and hold them for 3 seconds or more. Then the
buzzer sounds, all indicators of the preset switch illuminate, and
the self-diagnosis mode starts.

• The continuity of each switch at the ON position can be checked

by pressing the switch. The buzzer sounds if the switch is normal.

CAUTION:

The hazard switch and CD eject switch cannot be checked.

Finishing self-diagnosis mode

Self-diagnosis mode is canceled when turning the ignition switch OFF.

MULTI AV SYSTEM ON BOARD DIAGNOSIS FUNCTION

• The AV control unit diagnosis function starts up with multifunction switch operation and the AV control unit

performs a diagnosis for each unit in the system during the on board diagnosis.

• Perform a CONSULT-III diagnosis if the on board diagnosis does not start, e.g., the screen does not display

anything, the multifunction switch does not function, etc.

ON BOARD DIAGNOSIS

Description

• The trouble diagnosis function has a self-diagnosis mode for conducting trouble diagnosis automatically and

a confirmation/adjustment mode for operating manually.

• The self-diagnosis mode performs diagnoses on the AV control unit, connections between system compo-

nents as well as connections between AV control unit and GPS antenna and between AV control unit and
satellite radio antenna. Then it displays the diagnosis results on the display.

• The confirmation/adjustment mode allows the technician to check, modify or adjust the vehicle signals and

set values, as well as to monitor the system error records and system communication status. The checking,
modifying or adjusting generally require human intervention and judgment (the system cannot make judg-
ment automatically).

On board diagnosis item

JSNIA0059GB

Mode

Description

Self-Diagnosis

• AV control unit diagnosis
• Diagnoses the connections across system components, between AV

control unit and GPS antenna and between AV control unit and sat-
ellite radio antenna.

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