2004 INFINITI FX35 service

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS-
TEM
K ELECTRICAL
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SECTION AV
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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
Wiring Diagrams and Trouble Diagnosis .................. 5
PREPARATION ........................................................... 6
Commercial Service Tools ........................................ 6
AUDIO ......................................................................... 7
System Description .................................................. 7
BASE SYSTEM ..................................................... 7
BOSE SYSTEM .................................................... 7
SPEED SENSITIVE VOLUME SYSTEM .............. 8
Component Parts and Harness Connector Location ..... 9
Schematic -Base System- ...................................... 10
WITH NAVIGATION SYSTEM ............................. 10
WITHOUT NAVIGATION SYSTEM ...................... 11
Wiring Diagram -AUDIO- / Base System ............... 12
Schematic -BOSE System- .................................... 19
WITH NAVIGATION SYSTEM ............................. 19
WITHOUT NAVIGATION SYSTEM ..................... 20
Wiring Diagram -AUDIO- / BOSE System .............. 21
Terminals and Reference Value for Audio Unit ....... 30
Terminals and Reference Value for BOSE Speaker
Amp. ....................................................................... 31
Terminals and Reference Value for A/C and AV
Switch ..................................................................... 33
Terminals and Reference Value for Woofer ............ 34
A/C and AV Switch Self-Diagnosis Function .......... 35
STARTING THE SELF-DIAGNOSIS MODE ....... 35
DIAGNOSIS FUNCTION ..................................... 35
EXITING THE SELF-DIAGNOSIS MODE ........... 35
Trouble Diagnosis .................................................. 35
MALFUNCTION WITH RADIO, TAPE AND CD
(BASE SYSTEM) ................................................ 35
MALFUNCTION WITH RADIO, TAPE AND CD
(BOSE SYSTEM) ................................................ 36
FOR RADIO ONLY .............................................. 37
FOR CASSETTE PLAYER ONLY ....................... 37
FOR CD ONLY .................................................... 37
Noise Inspection ..................................................... 38TYPE OF NOISE AND POSSIBLE CAUSE ........ 38
Power Supply Circuit Inspection ............................. 39
Audio Steering Wheel Switch Inspection ................ 40
A/C and AV Switch Inspection ................................ 41
BOSE Speaker Amp. Inspection ............................ 42
Vehicle Speed Signal Inspection ............................ 42
Locking CD Auto-changer Mechanism ................... 44
DAMPER LOCK PROCEDURE .......................... 44
Removal and Installation of Audio Unit ................... 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 44
Disassembly and Assembly for Audio Unit ............. 45
DISASSEMBLY ................................................... 45
ASSEMBLY ......................................................... 45
Removal and Installation for A/C and AV Switch .... 45
REMOVAL ........................................................... 45
INSTALLATION ................................................... 46
Removal and Installation for Front Door Speaker ... 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
Removal and Installation for Rear Door Speaker ... 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
Removal and Installation for Instrument Speaker ... 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for Tweeter ..................... 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for Woofer (BOSE Sys-
tem) ........................................................................ 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for BOSE Speaker Amp. ... 48
REMOVAL ........................................................... 48
INSTALLATION ................................................... 48
AUDIO ANTENNA .................................................... 49
System Description ................................................. 49
Wiring Diagram — M/ANT — ................................. 50
Terminals and Reference Value for Audio Unit ....... 51

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007X5
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Wiring Diagrams and Trouble DiagnosisAKS007X6
When reading wiring diagrams, refer to the following:

Refer to GI-15, "How to Read Wiring Diagrams" .
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
When performing trouble diagnosis, refer to the following:

Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
Refer to GI-27, "
How to Perform Efficient Diagnosis for an Electrical Incident" .

AV-6
PREPARATION
Revision: 2004 November 2004 FX35/FX45
PREPARATIONPFP:00002
Commercial Service ToolsAKS007VR
Tool nameDescription
Power toolLoosening bolts and nuts
PBIC0191E

INTEGRATED DISPLAY SYSTEM
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MAINT Switch (Maintenance Switch)

When “MAINT” switch is pressed, display vehicle information screen. As vehicle information, it indicates
engine oil, tire rotation and tire pressure.

Pressing “MAINT” switch once cycles display from engine oil→tire rotation→(tire pressure)Note →display
OFF→engine oil.
NOTE:
For models with low tire pressure warning system.
Engine Oil and Tire Rotation

Operating the joystick left/right, replace distance can be set.

When journey distance is the same as replace distance, alert is
displayed. (SERVICE ALERT setting is ON.)

Selected replace distance is 0 - 7,500 miles (0 - 12,000 km) in
increments of 500 mile (800 km).

Press and hold “TRIP RESET or MAINT” switch for 1.5 seconds
or longer, reset present journey distance.

During driving, cannot change settings.
Tire Pressure

Tire pressure signal is received from low tire pressure warning
control unit via CAN communication.

Tire pressure is displayed.

When FLAT TIRE signal is received from low tire pressure warn-
ing control unit, “FLAT TIRE” is displayed.
E/M SWITCH
When “E/M” (English/Metric) switch is pressed, change the unit as followings.
SKIA5918E
SKIA5919E
UnitUS Mile, °F, M P G
Metric km, °C, l/100km

AV-58
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November 2004 FX35/FX45
SETTING SCREEN

Setting of electric status can be changed by A/C and AV switch. The signal is sent to BCM through display
unit to change vehicle electric system setting.

Display unit is communicating with driver seat control unit.

Pressing “SETTING” switch once cycles display from DISPLAY→LANGUAGE→BEEP SET→SERVICE
ALERT→PERSONALIZED SETTINGS MENU→DISPLAY OFF→DISPLAY.

Using the joystick, setting of each item will become possible.
Adjustable Vehicle Status
NOTE:
Setting in factory shipment is ON.
Setting itemsSetting varia-
tionsInitial
settingOperation
DISPLAY ON/OFF ON It switches displayed/Non-displayed of the screen.
LANGUAGEENGLISH/
FRANCAIS– It switches displayed language.
BEEP SET ON/OFF ONIt selects beep sound ON/OFF during switch operation. How-
ever, even if beep is set OFF, beep for NO OPERATION and
for screen interception are not reset.
SERVICE ALERT ON/OFF OFFIt switches displayed/Non-displayed of alert indication.

When the setting is ON, if engine oil or tire rotation will be
replace distance, alert is displayed.

When the setting is OFF, alert is not displayed.
PERSONALIZED
SETTING MENUSLIDE BACK DR
SEAT ON EXITON/OFF
ON
NoteThe driver’s seat automatically moves back and returns to
the original position for exceptional ease of exit and entry.
(Models with automatic drive positioner.)
LIFT STEERING
WHEEL ON EXITON/OFF
ON
NoteThe steering column automatically tilts up and returns to the
original position for exceptional ease of entry and exit. (Mod-
els with automatic drive positioner.)
REMOTE UNLOCK
DOOR LOGICDR-1ST/ALL DR-1STThis key can switch the unlock doors of the 1st unlocking
operation as follows:

Only the driver side door⇔All the doors
HORN CHIRP WITH
REMOTEON/OFF ONThis key changes the horn chirp mode occurring when press-
ing the LOCK button on the keyfob.
LAMPS FLASH
WITH REMOTEALL/LOCK/
UNLOCK/OFFALLThis key changes the hazard indicator flash mode occurring
when pressing the LOCK or UNLOCK button on the keyfob.
AUTO RE-LOCK
TIME5m/1m/OFF 1mThe length of auto door re-lock time can be set. Select the
“Auto Re-Lock timer” key, then move the joystick to adjust the
time.
AUTO HEADLAMP
SENSITIVITYLEVEL 1/2/3/4LEVEL
2Automatic light illumination can be set as desired. Select the
“Auto Headlamp Sensitivity” key, then move the joystick to
the left (lower) or right (higher).
AUTO HEADLAMP
OFF DELAYOFF/30/45/60/
90/120/150/
180 SEC45 SECThis key can control how long it takes the automatic turn off
timer to extinguish the headlamps in “AUTO” position. Select
the “Auto Headlamp Off Delay” key, then move the joystick to
the left or right to adjust the timer.
SPEED SENSING
WIPER INTERVALON/OFF ONThis key turns on and off the driving speed dependent inter-
mittent wiper function.
CONFIRM RESET
SETTINGSYES/NO NOWhen this key is selected and turned on using the “ENTER”
button, all settings mode by PERSONALIZED SETTINGS will
return to the initial conditions.

AV-132
NAVIGATION SYSTEM
Revision: 2004 November 2004 FX35/FX45
7. On the “SELF DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.

If several malfunctions are present in a unit, color of its switch
on the screen will be either red, or gray, determined by the
malfunction of the highest priority.
8. Select a switch on the “SELF DIAGNOSIS” screen and com-
ments for the diagnosis results will be shown.

When the switch is green, the following comment will be
shown. “Self-diagnosis was successful. Further diagnosis and
adjustments are recommended. Follow the “confirmation/
adjustments” menu or refer to the service manual.”.

When the switch is yellow, the following comment will be
shown. “Connection to the following unit is abnormal. See the
service manual for further details”.

When the switch is red, the following comment will be shown.
“DCU is abnormal”.Green : No malfunctioning.
Gray : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
SKIA4210E
SKIA4211E

AV-134
NAVIGATION SYSTEM
Revision: 2004 November 2004 FX35/FX45
5. Perform self-diagnosis by selecting the “Self-diagnosis (NAVI)”.

Self-diagnosis subdivision screen will be shown and the oper-
ation enters the self-diagnosis mode.

A bar graph shown below the self-diagnosis subdivision
screen indicates progress of the diagnosis.
6. On the “SELF DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.

If several malfunctions are present in a unit, color of its switch
on the screen will be either red, yellow, or gray, determined by
the malfunction of the highest priority.
7. Select a switch on the “SELF DIAGNOSIS” screen and com-
ments for the diagnosis results will be shown.

When the switch is green, the following comment will be
shown. “Self-diagnosis was successful. Further diagnosis and
adjustments are recommended. Follow the “confirmation and
adjustments” menu or refer to the service manual.”.

When the switch is yellow, the following comment will be
shown. “Connection to the following unit is abnormal. See the
service manual for further details”.

When the switch is red, the following comment will be shown.
“Center Control Unit is abnormal”.

When the switch is gray, the following comment will be shown. “Self-diagnosis for DVD-ROM DRIVER
of NAVI was not performed because no DVD-ROM was available.”.
SKIA4212E
Green : No malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
SKIA4214E
SKIA4211E

NAVIGATION SYSTEM
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SELF–DIAGNOSIS RESULT
Quick Reference Table
1. Select an malfunctioning diagnosis number. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis number. table and perform check by referring to
AV- 11 6 , "
Wiring Diagram — COMM —" .
3. Turn the ignition switch OFF and perform self-diagnosis again.
*: Navigation = NAVI control unit
CAUTION:

When A/C and AV switch has a malfunction, you cannot start. Refer to AV- 1 7 1 , "Unable to Operate
All of A/C and AV switch (Unable to start Self-Diagnosis)" .

When display has a malfunction, you cannot start. Refer to AV- 1 6 7 , "Screen is Not Shown" .
Self-diagnosis Codes
Screen switch
Diagnosis No.
Switch color Navigation* GPS antenna
Red×1
Gray×2
Yellow×3
×4
××5
Diagnosis
No.Possible causeReference
page
1 NAVI control unit malfunctionRefer to
AV-182
2 No map DVD-ROM is inserted in the NAVI control unit.Refer to
AV-158
3When “DVD-ROM error. Please check disc.” is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
2. Check ejected DVD-ROM for dirt, damage, and warpage.
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diagno-
sis again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the map
DVD-ROM is malfunctioning.Refer to
AV-158
4If “Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accor-
dance with service manual” is shown, carry out same inspection as diagnosis No. 3.Refer to
AV-158
5GPS antenna system
1. Visually check for a broken wire in the GPS antenna coaxial cable.
2. Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI
control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS
antenna. If the connection is still malfunction after the replacement of the GPS antenna, the NAVI
control unit is malfunctioning.Refer to
AV-159