navigation system INFINITI FX35 2007 Service Manual

ABCDEFGHIJKMLQUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System
(SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Tele-
phone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: July 2006
Revision: July 2006

TROUBLE DIAGNOSIS ATC-41
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Revision: 2006 July 2007 FX35/FX45
SYMPTOM TABLE
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System. ATC-62, "
Power
Supply and Ground
Circuit for Auto
Amp."
A/C system cannot be controlled.
Go to Integrated Display System.

Go to Navigation System. AV- 8 4 , "
Unable to
Operate System
with A/C and AV
Switch" (Without
navigation system)
or AV-139, "
Unable
to Operate System
with A/C and AV
Switch" (With navi-
gation system)
Air outlet does not change. Go to Trouble Diagnosis Procedure for Mode Door Motor. (LAN) ATC-68, "
Mode
Door Motor Circuit"Mode door motor does not operate normally.
Discharge air temperature does not change. Go to Trouble Diagnosis Procedure for Air Mix Door Motor.
(LAN) AT C - 7 1 , "
Air Mix
Door Motor Circuit"Air mix door motor does not operate nor-
mally.
Intake door does not change. Go to Trouble Diagnosis Procedure for Intake Door Motor. (LAN) AT C - 7 4 , "
Intake
Door Motor Circuit"Intake door motor does not operate nor-
mally.
Blower motor operation is malfunctioning. Go to Trouble Diagnosis Procedure for Blower Motor. ATC-77, "
Blower
Motor Circuit"
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch.AT C - 8 2 , "Magnet
Clutch Circuit"
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.
ATC-90, "
Insufficient
Cooling"
Go to Diagnosis Procedure for Insufficient Cooling. ATC-97, "
DIAGNO-
SIS PROCEDURE
FOR INSUFFI-
CIENT COOLING"
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.
ATC-99, "Insufficient
Heating"
Noise Go to Trouble Diagnosis Procedure for Noise.
ATC-100, "Noise"
Self-diagnosis cannot be performed. Go to Trouble Diagnosis Procedure for Self-diagnosis. ATC-101, "Self-
diagnosis"
Memory function does not operate. Go to Trouble Diagnosis Procedure for Memory Function.
ATC-102, "Memory
Function"

ATC-62
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Power Supply and Ground Circuit for Auto Amp.NJS000E2
SYMPTOM: A/C system does not come on.
INSPECTION FLOW
COMPONENT DESCRIPTION
Unified Meter and A/C Amp. (Automatic Amplifier)
The unified meter and A/C amp. has a built-in microcomputer which
processes information sent from various sensors needed for air con-
ditioner operation. The air mix door motor, mode door motor, intake
door motor, blower motor and compressor are then controlled.
When the various switches and temperature control switch are oper-
ated, data is input to the unified meter and A/C amp. from the display
control unit using CAN communication.
Self-diagnosis functions are also built into unified meter and A/C
amp. to provide quick check of malfunctions in the auto air condi-
tioner system.
*1 ATC-63, "DIAGNOSIS PROCE-
DURE FOR A/C SYSTEM"
*2 ATC-60, "Operational Check"*3AV-84, "Unable to Operate System
with A/C and AV Switch" (Without
navigation system) or AV-139,
"Unable to Operate System with A/C
and AV Switch" (With navigation
system)
SJIA1582E
SJIA1566E

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- TEM
K ELECTRICAL
CONTENTS
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SECTION
A
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AV
Revision: 2006 July 2007 FX35/FX45
AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
PREPARATION ...................................................... ..... 5
Commercial Service Tools ................................... ..... 5
AUDIO .................................................................... ..... 6
System Description ............................................. ..... 6
AUDIO SYSTEM .............................................. ..... 6
SPEED SENSITIVE VOLUME SYSTEM ......... ..... 7
Component Parts Location .................................. ..... 7
Schematic — AUDIO — / With Navigation System ..... 8
Wiring Diagram — AUDIO — / With Navigation Sys-
tem ...................................................................... ..... 9
Schematic — AUDIO — Without Navigation System ... 19
Wiring Diagram — AUDIO — / Without Navigation
System ................................................................ ... 20
Terminals and Reference Value for Audio Unit .... ... 29
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
Terminals and Reference Value for Satellite Radio
Tuner ................................................................... ... 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 ............................................... ... 36
Power Supply Circuit Inspection ......................... ... 37
Audio Steering Wheel Switch Inspection ............. ... 38
A/C and AV Switch Inspection ............................. ... 40
BOSE Speaker Amp. Inspection ......................... ... 40
Vehicle Speed Signal Inspection ......................... ... 41
Locking CD Auto-Changer Mechanism ............... ... 42
DAMPER LOCK PROCEDURE ....................... ... 42
Removal and Installation of Audio Unit ............... ... 43
REMOVAL ........................................................ ... 43
INSTALLATION ................................................ ... 43 Disassembly and Assembly for Audio Unit ..........
... 43
DISASSEMBLY ................................................ ... 43
ASSEMBLY ...................................................... ... 43
Removal and Installation for A/C and AV Switch . ... 44
REMOVAL ........................................................ ... 44
INSTALLATION ................................................ ... 44
Removal and Installation for Front Door Speaker ... 44
REMOVAL ........................................................ ... 44
INSTALLATION ................................................ ... 44
Removal and Installation for Rear Door Speaker ... 44 REMOVAL ........................................................ ... 44
INSTALLATION ................................................ ... 44
Removal and Installation for Instrument Speaker ... 45 REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
Removal and Installation for Tweeter .................. ... 45
REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
Removal and Installation for Woofer (BOSE Sys-
tem) ..................................................................... ... 45
REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
Removal and Installation for BOSE Speaker Amp. ... 46
REMOVAL ........................................................ ... 46
INSTALLATION ................................................ ... 46
Removal and Installation of Satellite Radio Tuner ... 47
REMOVAL ........................................................ ... 47
INSTALLATION ................................................ ... 47
Removal and Installation of Satellite Radio Antenna ... 47
REMOVAL ........................................................ ... 47
INSTALLATION ................................................ ... 47
ANTENNA .............................................................. ... 48
System Description .............................................. ... 48
Wiring Diagram — M/ANT — .............................. ... 49
Terminals and Reference Value for Audio Unit .... ... 50
Antenna Amp. Inspection .................................... ... 50
Location of Antenna ............................................. ... 51
RADIO ANTENNA AND GPS ANTENNA ......... ... 51
SATELLITE RADIO ANTENNA ........................ ... 51
Window Antenna Repair ...................................... ... 52

AV-2Revision: 2006 July 2007 FX35/FX45
CHECK ELEMENT ...........................................
... 52
Removal and Installation of Roof Antenna .......... ... 53
REMOVAL ........................................................ ... 53
INSTALLATION ................................................. ... 53
Removal and Installation of Satellite Radio Antenna ... 53
INTEGRATED DISPLAY SYSTEM ......................... ... 54
System Description .............................................. ... 54
INTEGRATED DISPLAY SYSTEM ................... ... 54
Component Description ....................................... ... 55
DISPLAY CONTROL UNIT ............................... ... 55
DISPLAY ........................................................... ... 55
A/C AND AV SWITCH ...................................... ... 55
CAN Communication Unit .................................... ... 55
Component Parts Location .................................. ... 55
Schematic — INF/D — ........................................ ... 56
Wiring Diagram — INF/D — ................................ ... 57
Schematic — COMM — ...................................... ... 63
Wiring Diagram — COMM — .............................. ... 64
Terminals and Reference Value for Display Control
Unit ...................................................................... ... 69
Terminals and Reference Value for Display ......... ... 72
Terminals and Reference Value for A/C and AV
Switch .................................................................. ... 74
Special Note for Trouble Diagnosis ..................... ... 75
On Board Self-Diagnosis Function ...................... ... 75
DESCRIPTION ................................................. ... 75
DIAGNOSIS ITEM ............................................ ... 75
Self-Diagnosis Mode (DCU) ................................ ... 76
OPERATION PROCEDURE ............................. ... 76
SELF-DIAGNOSIS RESULT ............................ ... 77
Confirmation/Adjustment Mode ........................... ... 79
OPERATION PROCEDURE ............................. ... 79
DISPLAY DIAGNOSIS ...................................... ... 80
VEHICLE SIGNALS .......................................... ... 80
AUTO CLIMATE CONTROL ............................. ... 81
CAN DIAG SUPPORT MONITOR ....................... ... 81
OPERATION PROCEDURE ............................. ... 81
A/C and AV Switch Self-Diagnosis Function ........ ... 82
STARTING THE SELF-DIAGNOSIS MODE ..... ... 82
DIAGNOSIS FUNCTION .................................. ... 82
EXITING THE SELF-DIAGNOSIS MODE ........ ... 82
CAN Communication Check ................................ ... 83
Unable to Operate System with A/C and AV Switch ... 84
All Images Are Not Displayed .............................. ... 86
Tint Is Strange for The RGB Image ..................... ... 88
RGB Image Is Rolling .......................................... ... 90
Values for All Items in The TRIP Screen Do Not
Change ................................................................ ... 91
Values for Items, “Driving Distance” and “Average
Speed” Do Not Change ....................................... ... 91
Values for All Items in The FUEL ECONOMY Screen
Do Not Change .................................................... ... 91
Example of Symptoms Possible No Malfunction . ... 92
DISPLAY ........................................................... ... 92
Removal and Installation of Display ..................... ... 92
Removal and Installation of Display Control Unit . ... 92
REMOVAL ........................................................ ... 92
INSTALLATION ................................................. ... 92
Removal and Installation of A/C and AV Switch .. ... 92 NAVIGATION SYSTEM ..........................................
... 93
System Description .............................................. ... 93
NAVIGATION SYSTEM .................................... ... 94
Component Description ....................................... ... 97
NAVI CONTROL UNIT ...................................... ... 97
GPS ANTENNA ................................................ ... 97
DISPLAY CONTROL UNIT ............................... ... 97
DISPLAY ........................................................... ... 98
A/C AND AV SWITCH ....................................... ... 98
CAN Communication Unit .................................... ... 98
Component Parts Location .................................. ... 98
Schematic — NAVI — .......................................... ... 99
Wiring Diagram — NAVI — .................................. .100
Schematic — COMM — ....................................... .107
Wiring Diagram — COMM — ............................... .108
Terminals and Reference Value for NAVI Control
Unit ....................................................................... .113
Terminals and Reference Value for Display Control
Unit ....................................................................... .115
Terminals and Reference Value for Display ......... .119
Terminals and Reference Value for A/C and AV
Switch .................................................................. .121
Special Note for Trouble Diagnosis ...................... .122
On Board Self-Diagnosis Function ....................... .122
DESCRIPTION ................................................. .122
DIAGNOSIS ITEM ............................................ .122
Self-Diagnosis Mode (DCU) ................................. .123
OPERATION PROCEDURE ............................. .123
SELF-DIAGNOSIS RESULT ............................. .124
Self-Diagnosis Mode (NAVI) ................................ .126
OPERATION PROCEDURE ............................. .126
SELF-DIAGNOSIS RESULT ............................. .128
Confirmation/Adjustment Mode ............................ .129
OPERATION PROCEDURE ............................. .129
DISPLAY DIAGNOSIS ...................................... .130
VEHICLE SIGNALS .......................................... .130
AUTO CLIMATE CONTROL ............................. .131
NAVIGATION .................................................... .131
CAN DIAG SUPPORT MONITOR ....................... .136
OPERATION PROCEDURE ............................. .136
A/C and AV Switch Self-Diagnosis Function ........ .137
STARTING THE SELF-DIAGNOSIS MODE ..... .137
DIAGNOSIS FUNCTION .................................. .137
EXITING THE SELF-DIAGNOSIS MODE ........ .137
CAN Communication Check ................................ .138
Unable to Operate System with A/C and AV Switch .139
All Images Are Not Displayed .............................. .141
Status Screen for Audio and A/C Is Not Displayed
When Showing Map Screen ................................ .143
Vehicle Mark Is Not Displayed Properly ............... .144
Tint Is Strange for The RGB Image ...................... .145
Tint Is Strange for The RGB Image (Only NAVI
Screen) ................................................................ .147
RGB Image Is Rolling .......................................... .149
Values for All Items in The TRIP Screen Do Not
Change ................................................................ .150
Values for Items, “Driving Distance” and “Average
Speed” Do Not Change ........................................ .150
Values for All Items in The FUEL ECONOMY Screen

AV-8
AUDIO
Revision: 2006 July 2007 FX35/FX45
Schematic — AUDIO — / With Navigation SystemNKS003AL
TKWM4382E

AUDIO AV-9
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Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — AUDIO — / With Navigation SystemNKS003AM
TKWM4383E

AUDIO AV-19
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Revision: 2006 July 2007 FX35/FX45
Schematic — AUDIO — Without Navigation SystemNKS003AN
TKWM4393E

AV-20
AUDIO
Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — AUDIO — / Without Navigation SystemNKS003AO
TKWM4394E

AV-36
AUDIO
Revision: 2006 July 2007 FX35/FX45
Trouble DiagnosisNKS003LC

The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.

Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to AV- 8 4 , "
Unable to Operate System with A/C
and AV Switch" (Without navigation system), or AV- 1 3 9 , "Unable to Operate System with A/C and AV
Switch" (With navigation system).

Refer to "SERVICE BULLETIN ITB04-055" for the diagnosis of satellite radio.
NOTE:
Noise resulting 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 a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
Symptom Possible malfunction location
Audio system does not work properly.

Audio unit power supply circuit

Communication signal circuit between audio unit and display control unit

A/C and AV switch

Audio unit
No sound can be heard from all speakers.

BOSE speaker amp. power supply and ground circuit

BOSE speaker amp. ON signal circuit

Audio unit

BOSE speaker amp.
No sound can be heard from one or several speakers.

Audio signal circuit between audio unit and BOSE speaker amp.

Audio signal circuit between BOSE speaker amp. and speaker

Speaker

Tw e e te r

Audio unit

BOSE speaker amp.
No sound can be heard from woofer.

Audio signal circuit between BOSE speaker amp. and woofer

Woofer

BOSE speaker amp.
No sound can be heard from radio or noise is caught.

Antenna amp. ON signal circuit

Antenna feeder

Roof antenna

Antenna amp.

Audio unit
Audio steering switch does not operate properly.

Remote control signal circuit between audio steering switch and A/C and
AV switch

Audio steering switch

Spiral cable

TEL adapter unit (With telephone system)

A/C and AV switch