radio INFINITI FX35 2005 Service Manual

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- TEM
K ELECTRICAL
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AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 5
PREPARATION ...................................................... ..... 6
Commercial Service Tools ................................... ..... 6
AUDIO .................................................................... ..... 7
Component Parts and Harness Connector Location ..... 7
System Description ............................................. ..... 8
BASE SYSTEM ................................................ ..... 8
BOSE SYSTEM ............................................... ..... 8
SPEED SENSITIVE VOLUME SYSTEM ......... ..... 9
Schematic - Base System - ................................. ... 10
Wiring Diagram - AUDIO - / Base System .......... .... 11
Schematic - BOSE System - With Navigation Sys-
tem ...................................................................... ... 16
Wiring Diagram – AUDIO – / BOSE System With
Navigation System .............................................. ... 17
Schematic - BOSE System - Without Navigation
System ................................................................ ... 25
Wiring Diagram – AUDIO – / BOSE System Without
Navigation System .............................................. ... 26
Terminals and Reference Value for Audio Unit .... ... 33
Terminals and Reference Value for BOSE Speaker
Amp. .................................................................... ... 34
Terminals and Reference Value for A/C and AV
Switch .................................................................. ... 36
Terminals and Reference Value for Woofer ......... ... 37
A/C and AV Switch Self-Diagnosis Function ....... ... 37
STARTING THE SELF-DIAGNOSIS MODE .... ... 37
EXITING THE SELF-DIAGNOSIS MODE ........ ... 37
DIAGNOSIS FUNCTION .................................. ... 37
Trouble Diagnosis ............................................... ... 38
MALFUNCTION WITH RADIO, TAPE AND CD ... 38
FOR RADIO ONLY ........................................... ... 39
FOR CASSETTE PLAYER ONLY .................... ... 39
FOR CD ONLY ................................................. ... 39
Noise Inspection .................................................. ... 40
TYPE OF NOISE AND POSSIBLE CAUSE ..... ... 40
Power Supply Circuit Inspection ......................... ... 41 Audio Steering Wheel Switch Inspection .............
... 42
A/C and AV Switch Inspection ............................. ... 44
BOSE Speaker Amp. Inspection ......................... ... 44
Vehicle Speed Signal Inspection ......................... ... 45
Locking CD Auto-Changer Mechanism ............... ... 46
DAMPER LOCK PROCEDURE ....................... ... 46
Removal and Installation of Audio Unit ................ ... 47
REMOVAL ........................................................ ... 47
INSTALLATION ................................................ ... 47
Disassembly and Assembly for Audio Unit .......... ... 47
DISASSEMBLY ................................................ ... 47
ASSEMBLY ...................................................... ... 47
Removal and Installation for A/C and AV Switch . ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 48
Removal and Installation for Front Door Speaker ... 48
REMOVAL ........................................................ ... 48
INSTALLATION ................................................ ... 48
Removal and Installation for Rear Door Speaker ... 49 REMOVAL ........................................................ ... 49
INSTALLATION ................................................ ... 49
Removal and Installation for Instrument Speaker ... 49 REMOVAL ........................................................ ... 49
INSTALLATION ................................................ ... 49
Removal and Installation for Tweeter .................. ... 49
REMOVAL ........................................................ ... 49
INSTALLATION ................................................ ... 49
Removal and Installation for Woofer (BOSE Sys-
tem) ..................................................................... ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
Removal and Installation for BOSE Speaker Amp. ... 50
REMOVAL ........................................................ ... 50
INSTALLATION ................................................ ... 50
AUDIO ANTENNA ................................................. ... 51
System Description .............................................. ... 51
Wiring Diagram — M/ANT — .............................. ... 52
Terminals and Reference Value for Audio Unit .... ... 53
Antenna Amp. Inspection .................................... ... 53
Location of Antenna ............................................. ... 54

AV-8
AUDIO
Revision: 2005 July 2005 FX
System DescriptionAKS005T3
BASE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to A/C and AV switch terminal 1

to display unit terminal 1 and

to option connector–2 for satellite radio receiver terminal 12.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

to A/C and AV switch terminal 2

to display unit terminal 2 and

to option connector–2 for satellite radio receiver terminal 11.
Ground is supplied through the case of the audio unit.
Ground is also supplied

to A/C and AV switch terminal 5 and

to display unit terminal 6 and 15

through body ground M35, M45 and M85,

to option connector–2 for satellite radio receiver terminal 10

through body ground B203 and B210.
Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pushed to audio switch, it sends audio signal to audio unit. Then audio sig-
nals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear door speaker LH and RH and

to terminals 1 and 2 of instrument speaker LH and RH.
When one of audio steering wheel switch is pushed to volume up, seek up, or mode ON, resistance in steering
switch circuit changes depending on which button is pushed.
When one of audio steering wheel switch is pushed to volume down, seek down, or power ON, resistance in
audio steering wheel switch circuit changes depending on which button is pushed.
BOSE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to woofer terminal 1

to A/C and AV switch terminal 1

to display control unit terminal 1 (with navigation system) or display unit terminal 1 (without navigation sys-
tem) and

to option connector–2 for satellite radio receiver terminal 12

through 20A fuse [No.17, located in the fuse block (J/B)]

to BOSE speaker amp. terminal 1.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

to A/C and AV switch terminal 2

AUDIO AV-9
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to display control unit terminal 10 (with navigation system) or display unit terminal 2 (without navigation
system) and

to option connector–2 for satellite radio receiver terminal 11.
Ground is supplied through the case of the audio unit.
Ground is also supplied

to BOSE speaker amp. terminal 17

to woofer terminal 2 and

to option connector–2 for satellite radio receiver terminal 10

through body ground B203 and B210,

to A/C and AV switch terminal 5

to display control unit terminal 3 and 13 (with navigation system)

to display terminal 1 (with navigation system) and

to display unit terminal 6 and 15 (without navigation system)

through body ground M35, M45 and M85.
Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pushed to audio switch, it send audio signal to audio unit.
Then audio signals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29, and 30.
Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied

through BOSE speaker amp. terminals 2, 3, 4, 9,10,11,12, 13, 14, 15, 16, 18, 19 and 20

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear door speaker LH and RH

to terminals 1 and 2 of tweeter LH and RH

to terminals 1 and 2 of instrument speaker LH, RH, and CENTER, and

to terminals 7 and 8 of woofer.
When one of audio steering wheel switch is pushed to volume up, seek up, or mode ON, resistance in audio
steering wheel switch circuit changes depending on which button is pushed.
When one of audio steering wheel switch is pushed to volume down, seek down, or power ON, resistance in
audio steering wheel switch circuit changes depending on which button is pushed.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.

AV-38
AUDIO
Revision: 2005 July 2005 FX
Trouble DiagnosisAKS005TB
The majority of the audio malfunctions are the result of outside causes (bad CD/cassette, electromagnetic
interference, etc.). Check the inspection items below to diagnose the malfunction.
MALFUNCTION WITH RADIO, TAPE AND CD
Symptom Possible cause
Inoperative

Audio power supply circuit. Refer to AV-41, "Power Supply Circuit Inspection" .

Audio communication line check (Without Navigation System). Refer to AV-82,
"Audio Communication Line Inspection" .

Audio communication line check (With Navigation System). Refer to AV-149, "AV
Communication Line Check (Between Display Control Unit and NAVI Control Unit)"
.

A/C and AV switch check. Refer to AV- 4 4 , "A/C and AV Switch Inspection" .
If above systems are OK, replace audio unit.
Audio steering wheel switch does not operate.

Audio steering wheel switch check. Refer to AV-42, "Audio Steering Wheel Switch
Inspection" .
If above systems are OK, replace audio unit.
Audio display is not shown.

Audio communication line check (Without Navigation System). Refer to AV-82,
"Audio Communication Line Inspection" .

Audio communication line check (With Navigation System). Refer to AV-150,
"Audio Communication Line Check (Between Display Control Unit and Audio Unit)"
.
If above systems are OK, replace audio unit.
All speaker do not sound.

Replace audio unit (Base system). Refer to AV-47, "Removal and Installation of
Audio Unit" .

BOSE speaker amp. power supply. Refer to AV- 4 1 , "Power Supply Circuit Inspec-
tion" .

BOSE speaker amp. circuit. Refer to AV- 4 4 , "BOSE Speaker Amp. Inspection" .
If above systems are OK, replace BOSE speaker amp.
Speed sensitive volume system dose not work.

Vehicle speed signal check. Refer to AV- 4 5 , "Vehicle Speed Signal Inspection" .
If above system is OK, replace audio unit.
Poor sound

Replace audio unit (Base system). Refer to AV-47, "Removal and Installation of
Audio Unit" .

BOSE speaker amp (BOSE system). check. Refer to AV- 4 4 , "BOSE Speaker Amp.
Inspection" .
If above systems are OK, replace BOSE speaker amp.
Noisy

Noise check. Refer to AV- 4 0 , "Noise Inspection" .
If above systems are OK, replace audio unit.

AUDIO AV-39
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FOR RADIO ONLY
NOTE:
1. The cause is a reduction in the receiving sensitivity of the window antenna.
2. This is noise resulting from variations in field strength, such as fading noise and multi-path noise, or exter- nal 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 of mountains or buildings.
FOR CASSETTE PLAYER ONLY
FOR CD ONLY
Symptom Possible cause
No sound

Antenna feeder check (For open or short). Refer to AV-54, "Location of Antenna" .

Window antenna check. Refer to AV-54, "CHECK ELEMENT" .
If above systems are OK, replace audio unit.
Noisy

Antenna feeder check (For open or short). Refer to AV-54, "Location of Antenna" .

Antenna amp. check. Refer to AV-53, "Antenna Amp. Inspection" .

Window antenna check. Refer to AV-54, "CHECK ELEMENT" .

Noise prevention parts check.

Each electrical equipment check.

Wire harness of each piece of electrical equipment check.
If above systems are OK, replace antenna amp.
Selected radio stations stored in memory are
deleted.

Replace audio unit.
Symptom Possible cause
Cassette tape cannot be inserted.

Audio unit. Refer to AV-47, "Removal and Installation of Audio Unit" .

Cassette tape.
Cassette tape cannot be ejected.
Auto reverse does not work, or the tape direction changes
in the middle of play.

Audio unit. Refer to AV-47, "Removal and Installation of Audio Unit" .
There is much noise.
The sound is not clear.
Sound fluctuates/tape speed not correct
No sound.
Symptom Possible cause
CD cannot be inserted.

Audio unit. Refer to AV-47, "Removal and Installation of Audio Unit" .
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.

AV-40
AUDIO
Revision: 2005 July 2005 FX
Noise InspectionAKS005TC
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction.
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
Occurrence condition Possible cause
Occurs only when
engine is ON. A continuous growling noise occurs. The speed of the
noise varies with changes in the engine speed.

Ignition condenser
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is run-
ning and the lighting switch is ON.

Alternator
The occurrence of the noise is linked with the operation of the fuel pump.

Fuel pump condenser
Noise only occurs
when various elec-
trical components
are operating. A cracking or snapping sound occurs with the opera-
tion of various switches.

Relay malfunction, radio malfunction
The noise occurs when various motors are operating.

Motor case ground

Motor
The noise occurs constantly, not just under certain conditions.

Rear window defogger coil malfunction

Open circuit in printed heater

Poor ground of antenna amplifier or antenna feeder
line

Mirror type film is attached on the rear window glass

After-market TV antenna and/or electrical accessories
such as radio are attached on the rear window glass.
A cracking or snapping sound occurs while the vehicle is being driven,
especially when it is vibrating excessively.

Poor ground of audio parts

Poor ground due to incorrect installation of parts

Poor wiring connections or a short circuit

AUDIO ANTENNA AV-51
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AUDIO ANTENNAPFP:28200
System DescriptionAKS007WE
With the ignition switch in ACC or ON, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

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

through audio unit terminal 5

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

AUDIO ANTENNA AV-53
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Terminals and Reference Value for Audio UnitAKS007WW
Antenna Amp. InspectionAKS007WX
1. CHECK ANTENNA FEEDER
Check with visual observation if antenna feeder between audio unit and antenna amp. has disconnection or
malfunction on the mounting part (engagement, looseness of shield earth, etc.).
OK or NG
OK >> GO TO 2
NG >> Replace antenna feeder.
2. CHECK ANTENNA SIGNAL
1. Turn the ignition switch ACC.
2. Check voltage between audio unit harness connector M58 ter- minal 5 (R/W) and ground.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Replace audio unit.
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value Example of
symptom
+– Ignition
switch Operation
5 (R/W) Ground Antenna signal Input ACC — Approx. 12 V Receiving status of radio
broadcast becomes bad.
10 (LG/R) Ground ACC power
supply Input ACC — Battery voltage
System does not work
properly.
5 (R/W) – Ground : Approx. 12 V
SKIA6854E

AV-74
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
On Board Self-Diagnosis FunctionAKS005U8
DESCRIPTION

Diagnosis function consists of the self-diagnosis mode performed automatically.

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.
DIAGNOSIS ITEM
Self-Diagnosis ModeAKS005U9
OPERATION PROCEDURES
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MUTE/ II ” switch, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)
4. Display unit connection check screen.
5. Select each connecting unit (CHANGER, SATELLITE RADIO).
13 (G/W) Ground Steering SW
B Input ON Press POWER
switch. Approx. 0 V
Audio steering
wheel switches
do not function.
Press SEEK
DOWN switch. Approx. 1.7 V
Press VOL DOWN
switch. Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) — Steering SW
ground —— — — Audio steering
wheel switches
do not function.
Terminal No.
(Wire color) Item Signal
input/
output Condition
Voltage Example of
symptom
+– Ignition
switch Operation
Mode Item Description Reference page
Self-diagnosis NETWORK CHECK
Check network between control unit and switch connected
from display unit via communication line. AV-75, "
NETWORK CHECK"
PARTS CHECK
Perform diagnosis and setting of display unit.

Perform self-diagnosis for auto air conditioner system. AV- 7 5 , "PARTS CHECK"
VERSION CHECK Displays version of each unit.
AV- 7 6 , "VERSION CHECK"
CAN DIAG MNTR Display unit displays CAN communication status. AV- 7 6 , "CAN DIAG MNTR
(CAN DIAG MONITOR)"
PKIB4131E
SKIA5921E

AV-76
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
Display Detail Screen
NOTE:
Except an audio screen.
HVAC DETAIL SCREEN
Press the joystick, start auto air conditioner system self-diagnosis.
Refer to AT C - 5 3 , "
Self-diagnosis Function" .
VERSION CHECK
Check ID and version of display, A/C and AV switch, audio, IVCS, changer, and Satellite Radio.
CAN DIAG MNTR (CAN DIAG MONITOR)
Display CAN communication status.
Items Description
FULL BLINK All display unit segments turn ON.
BLANK–ADJ Adjust the display time-out for 5 to 15 seconds. (Default is
10 seconds.)
NOTE
WARNING Select warning indication ON/OFF. (Default is ON.)
SKIA5925E
SKIA5926E
Items shown Contents
CANCOMM OK/NG CAN1 OK/UNKWN
CAN2 OK/UNKWN
CAN3 OK/UNKWN
CAN4 OK/UNKWN
CAN5 OK/UNKWN
CAN6 OK/UNKWN
CAN7 OK/UNKWN
CAN8 OK/UNKWN
CAN9 OK/UNKWN
SKIA5927E