2008 INFINITI FX35 steering wheel

PRECAUTIONSATC-3
< SERVICE INFORMATION >
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612929
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000001612931
NOTE:
 This Procedure is applied only to models with Intell igent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
 Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
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AV-1
ELECTRICAL
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CONTENTS
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- TEM
SERVICE INFORMATION ............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ...................................................4
Commercial Service Tool .................................... ......4
AUDIO .................................................................5
System Description ............................................. ......5
Component Parts Location ........................................6
Schematic - AUDIO - / with Navigation System ........7
Wiring Diagram - AUDIO - / with Navigation Sys-
tem ............................................................................
8
Schematic - AUDIO - without Navigation System ....18
Wiring Diagram - AUDIO - / without Navigation
System ....................................................................
19
Terminal and Reference Value for Audio Unit .........28
Terminal and Reference Value for BOSE Speaker
Amp .........................................................................
30
Terminal and Reference Value for A/C and AV
Switch ......................................................................
32
Terminal and Reference Value for Woofer ..............33
Terminal and Reference Value for Satellite Radio
Tuner ................................................................... ....
34
A/C and AV Switch Self-Diagnosis Function ...........34
Trouble Diagnosis ...................................................35
Power Supply Circuit Inspection .............................36
Audio Steering Wheel Switch Inspection ................37
A/C and AV Switch Inspection ................................39
BOSE Speaker Amp. Inspection .............................39
Vehicle Speed Signal Inspection .............................40
Locking CD Auto-Changer Mechanism ...................41
Removal and Installation of Audio Unit ...................41
Disassembly and Assembly of Audio Unit ...............42
Removal and Installation for A/C and AV Switch ....42
Removal and Installation for Front Door Speaker ....43
Removal and Installation for Rear Door Speaker ....43
Removal and Installation for Instrument Speaker ....43
Removal and Installation for Tweeter .................. ....44
Removal and Installation for Woofer (BOSE Sys-
tem) .........................................................................
44
Removal and Installation for BOSE Speaker Amp ....44
Removal and Installation of Satellite Radio Tuner ....45
Removal and Installation of Satellite Radio Anten-
na ......................................................................... ....
45
ANTENNA .........................................................46
System Description ..................................................46
Wiring Diagram - M/ANT - .......................................47
Terminal and Reference Value for Audio Unit .........48
Antenna Amp. Inspection ........................................48
Location of Antenna .................................................49
Window Antenna Repair ..........................................49
Removal and Installation of Roof Antenna ..............51
Removal and Installation of Satellite Radio Anten-
na ......................................................................... ....
51
INTEGRATED DISPLAY SYSTEM ...................52
System Description ..................................................52
Component Description ...........................................52
CAN Communication Unit ........................................53
Component Parts Location ......................................53
Schematic - INF/D - .................................................54
Wiring Diagram - INF/D - .........................................55
Schematic - COMM - ...............................................61
Wiring Diagram - COMM - .......................................62
Terminal and Reference Value for Display Control
Unit ...................................................................... ....
67
Terminal and Reference Value for Display ..............69
Terminal and Reference Value for A/C and AV
Switch ......................................................................
71
Special Note for Trouble Diagnosis .........................72
On Board Self-Diagnosis Function ..........................72
Self-Diagnosis Mode (DCU) ....................................73
Confirmation/Adjustment Mode ...............................75
CAN Diagnostic Support Monitor .............................77
A/C and AV Switch Self-Diagnosis Function ...........78
CAN Communication Check ....................................79
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AV-2
Unable to Operate System with A/C and AV
Switch .....................................................................
79
All Images Are Not Displayed .................................80
Tint Is Strange for the RGB Image .........................82
RGB Image Is Rolling .............................................84
Value for All Item in the TRIP Screen Do Not
Change ...................................................................
85
Value for Item, "Driving Distance" and "Average
Speed" Do Not Change ..........................................
85
Value for All Item in the FUEL ECONOMY Screen
Do Not Change .......................................................
85
Example of Symptom Possible No Malfunction ......86
Removal and Installation of Display .......................86
Removal and Installation of Display Control Unit ....86
Removal and Installation of A/C and AV Switch .. ...86
NAVIGATION SYSTEM .................................. ...87
System Description .............................................. ...87
Component Description ..........................................89
CAN Communication Unit .......................................91
Component Parts Location .....................................91
Schematic - NAVI - .................................................92
Wiring Diagram - NAVI - .........................................93
Schematic - COMM - .............................................100
Wiring Diagram - COMM - .....................................101
Terminal and Reference Value for NAVI Control
Unit ........................................................................
106
Terminal and Reference Value for Display Control
Unit ...................................................................... ..
107
Terminal and Reference Value for Display ............111
Terminal and Reference Value for A/C and AV
Switch ....................................................................
113
Special Note for Trouble Diagnosis .......................113
On Board Self-Diagnosis Function ........................113
Self-Diagnosis Mode (DCU) ..................................114
Self-Diagnosis Mode (NAVI) ..................................117
Confirmation/Adjustment Mode .............................119
CAN Diagnostic Support Monitor ...........................125
A/C and AV Switch Self-Diagnosis Function .........126
CAN Communication Check ..................................126
Unable to Operate System with A/C and AV
Switch ....................................................................
127
All Images Are Not Displayed ................................128
Status Screen for Audio and A/C Is Not Displayed
When Showing Map Screen ..................................
130
Vehicle Mark Is Not Displayed Properly ................131
Tint Is Strange for the RGB Image ........................132
Tint Is Strange for the RGB Image (Only NAVI
Screen) ..................................................................
133
RGB Image Is Rolling .......................................... .135
Value for All Item in the TRIP Screen Do Not
Change .................................................................
137
Value for Item, "Driving Distance" and "Average
Speed" Do Not Change .........................................
137
Value for All Item in the FUEL ECONOMY Screen
Do Not Change .....................................................
137
Voice Guidance Is Not Heard ...............................138
Example of Symptom Possible No Malfunction ....138
Removal and Installation of NAVI Control Unit .....141
Removal and Installation of GPS Antenna ........... .142
Removal and Installation of A/C and AV Switch ...142
Removal and Installation of Display Unit ............. .142
Removal and Installation of Display Control Unit ..142
INFINITI MOBILE ENTERTAINMENT SYS-
TEM ................................................................. ..
143
System Description .............................................. .143
Component Parts Location ...................................143
Wiring Diagram - MES - ........................................144
Terminal and Reference Value for DVD Player ....146
Terminal and Reference Value for DVD Display ...147
DVD Player Does Not Work ..................................148
Screen Is Not Shown (While Sounds Come Out of
an Audio Speaker, Did Not Do of a Head Phone) .
150
Screen Is not Shown (Sounds Come Out of Both
an Audio Speaker and a Head Phone) .................
151
Head Phone Does Not Sound ...............................152
Remote Controller Does Not Work .......................153
No CD·DVD Sound from All Speakers ..................154
Removal and Installation for DVD Player ..............155
Removal and Installation for DVD Display Unit .....156
TELEPHONE .................................................. ..158
System Description .............................................. .158
Component Parts Location ...................................159
Schematic .............................................................160
Wiring Diagram - H/PHON - ..................................161
Terminal and Reference Value for TEL Adapter
Unit ........................................................................
166
Self-Diagnosis Function ........................................167
Basic Inspection of Hands-Free Phone ................168
Audio Steering Wheel Switch Does Not Operate ..169
Voice Activated Control Function Does Not Oper-
ate .........................................................................
170
Removal and Installation of TEL Adapter Unit ......172
Removal and Installation for TEL Antenna .......... .172
Removal and Installation of Microphone ...............173
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AUDIOAV-5
< SERVICE INFORMATION >
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AUDIO
System DescriptionINFOID:0000000001328672
AUDIO 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 control unit terminal 1
 to woofer terminal 1
 to satellite radio tuner terminal 12 (With satellite radio) and
 to option connector–2 for satellite radio tuner terminal 12 (Without satellite radio),
 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
 to display control unit terminal 10
 to satellite radio tuner terminal 16 (With satellite radio) and
 to option connector–2 for satellite radio t uner terminal 11 (Without satellite radio).
Ground is supplied through the case of the audio unit.
Ground is also supplied
 to BOSE speaker amp. terminal 17
 to woofer terminal 2
 to satellite radio tuner terminal 15 (With satellite radio) and
 to option connector–2 for satellite radio receiver terminal 10 (Without satellite radio)
 through body ground B203 and B210,
 to A/C and AV switch terminal 5
 to display control unit terminals 3,13 and
 to display terminal 1
 through body ground M35, M45 and M85.
Audio unit, A/C and audio controller are c onnected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pressed to audio swit ch, 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 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 press ed to ON (With telephone system), mode ON (Without
telephone system), seek up, or volume up, resistanc e in steering switch circuit changes depending on which
button is pressed.
When one of audio steering wheel switch is pressed to mode ON (With telephone system), power ON (Without
telephone system), seek down, or volume down, resi stance in audio steering wheel switch circuit changes
depending on which button is pressed.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system gone up and down automatical ly in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.
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AV-34
< SERVICE INFORMATION >
AUDIO
Terminal and Reference Valu e for Satellite Radio Tuner
INFOID:0000000001328682
A/C and AV Switch Self-Diagnosis FunctionINFOID:0000000001328683
It can check ON/OFF operation of each switch in the A/C and AV sw itch and diagnose the input signals to the
audio steering wheel switch.
Te r m i n a l
(Wire color) ItemSignal
input/
output Condition
Reference value
+– Ignition
switch Operation
2 (B) 1 (R) Satellite radio audio
signal LH
Output ONReceive satellite radio audio
signal
4 (G) 3 (W) Satellite radio audio
signal RH Output ONReceive satellite radio audio
signal
5—Shield —— — —
6—Shield —— — —
8 (L) Ground Communication signal
REQ (SAT-AUDIO)
Output ONWhen setting to satellite ra-
dio mode
9 (L/R) Ground Communication signal
Tx (SAT-AUDIO) Output ONWhen setting to satellite ra-
dio mode
10 (L/W) Ground Communication signal
Rx (AUDIO-SAT) Input ON
When setting to satellite ra-
dio mode
12 (Y) Ground Battery power supply Input OFF — Battery voltage
15 (B) Ground Ground — ON — Approx. 0 V
16 (P) Ground ACC power supply Input ACC — Battery voltage
17 — Satellite radio antenna — — — —
SKIB3609E
SKIB3609E
SKIB7338E
SKIB7337E
SKIB7336E
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AUDIOAV-35
< SERVICE INFORMATION >
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STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the switches “1” and “6” simultaneously for 3 seconds.
DIAGNOSIS FUNCTION
The following are checked: All the indicators (LED) in the A/C and AV switch.
 Continuity of the switches by sounding the buzze r when the A/C and AV switch and audio steering wheel
switch is pressed.
 Continuity of harness between A/C and AV switch and audio steering switch.
NOTE:
Rear window defogger switch operation is not checked. (No beep sound even under normal status)
EXITING THE SELF-DIAGNOSIS MODE
 Turn ignition switch OFF.
Trouble DiagnosisINFOID:0000000001328684
 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 malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and oper-
ation 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-79, "
Unable to Operate System with A/C and
AV Switch" (Without navigation system), or AV-127, "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.
SKIB8660E
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
Tweeter
 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.
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AUDIOAV-37
< SERVICE INFORMATION >
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2. Check voltage between BOSE speaker amp. harness connector terminal or woofer harness connector terminal and ground.
OK or NG
OK >>  INSPECTION END (Audio unit is OK.)  GO TO 3. (BOSE speaker amp. and woofer)
NG >> Repair harness or connector between each unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE speaker amp. and woofer connectors.
3. Check continuity between BOSE speaker amp. harness connec-
tor B212 terminal 17 and ground.
4. Check continuity between woofer harness connector B223 ter- minal 2 and ground.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Repair harness or connector.
Audio Steering Wheel Switch InspectionINFOID:0000000001328686
1.CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1. Start A/C and AV switch self-diagnosis function. Refer to AV-34, "
A/C and AV Switch Self-Diagnosis Func-
tion".
2. Operate audio steering wheel switch.
Does audio steering wheel switch operate normally?
YES >> INSPECTION END
Te r m i n a l s
Ignition
switch Vo l ta g e
(+)
(–)
Connector Terminal
B212 1 Ground OFF Battery voltage
B223 1 Ground OFF Battery voltage
SKIA8931E
17 – Ground : Continuity should exist.
SKIA4312E
2 – Ground : Continuity should exist.
SKIB8692E
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AV-38
< SERVICE INFORMATION >
AUDIO
NO >>  GO TO 2. (Without telephone system) GO TO 3. (With telephone system)
2.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/C and AV switch and spiral cable connectors.
3. Check continuity between A/C and AV switch harness connector M64 terminals 12, 13, 14 and spiral cable harness connector
M15 terminals 24, 32, 31.
4. Check continuity between A/C and AV switch and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
3.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/C and AV switch and TEL adapter unit connectors.
3. Check continuity between A/C and AV switch harness connector (A) M64 terminals 12, 13, 14 and teladapter unit harness con-
nector (B) M102 terminals 17, 18, 19.
4. Check continuity between A/C and AV switch and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK HARNESS
1. Disconnect spiral cable connector.
2. Check continuity between TEL adapter unit harness connector (A) M102 terminals 12, 13, 14 and spiral cable harness connec-
tor (B) M15 terminals 24, 32, 31.
3. Check continuity between TEL adapter unit and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK SPIRAL CABLE
1. Disconnect spiral cable connector (Audio steering wheel switch harness side). 12 – 24 : Continuity should exist.
13 – 32 : Continuity should exist.
14 – 31 : Continuity should exist.
12, 13, 14 – ground : Contin
uity should not exist.
SKIA5955E
12 – 17 : Continuity should exist.
13 – 18 : Continuity should exist.
14 – 19 : Continuity should exist.
12, 13, 14 – ground : Continuity should not exist.
PKIC9369E
12 – 24 : Continuity should exist.
13 – 32 : Continuity should exist.
14 – 31 : Continuity should exist.
12, 13, 14 – ground : Continuity should not exist.
SKIB8681E
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