2008 INFINITI FX35 installation

ATC-136
< SERVICE INFORMATION >
REFRIGERANT LINES
5. Remove washer tank mounting bolt.
6. Remove high-pressure flexible hose bracket mounting bolt.
7. Disconnect high-pressure flexible hose and high-pressure pipe1 from condenser.
a. Set a disconnector [condenser outlet (SST: 9253089908), con- denser inlet (SST: 9253089912)] on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it. CAUTION:
Cap or wrap the joint of co ndenser, high-pressure flexible
hose and high-pressure pipe 1 with suitable material such
as vinyl tape to avoid the entry of air.
8. Remove condenser mounting bolts.
9. Remove radiator upper mount, move radiator and condenser to the engine side.
10. Remove condenser. CAUTION:
Be careful not to damage the core su rface of the condenser and the radiator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of high-pressure flexible hose and high-pressure pipe 1 with new ones, and then
apply compressor oil to it when installing it.
 Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
 Insert piping securely until a click is heard.
PBIC1534E
RJIA2065E
RJIA2066E
SJIA1570E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

REFRIGERANT LINESATC-137
< SERVICE INFORMATION >
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 After piping connection is comple ted, pull male-side piping by hand to make sure that connection
does not come loose.
 When recharging refrigerant, check for leaks.
Removal and Installation of Refrigerant Pressure SensorINFOID:0000000001328228
REMOVAL
1. Remove condenser. Refer to ATC-135, "Removal and Installation of Condenser".
2. Remove refrigerant pressure sensor from condenser. CAUTION:
When working, be careful no t to damage the condenser.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to O-ring of refrig erant pressure sensor when installing it.
Removal and Installation of EvaporatorINFOID:0000000001328229
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-133, "Removal and Installation of
Low-Pressure Pipe 2 and High-pressure Pipe 3".
CAUTION:
Cap or wrap the joint of evaporator, low-pressure pipe 2 and high-pressure pipe 3 with suitable
material such as vinyl tape to avoid the entry of air.
2. Slide evaporator, and then remove it from heater & cooling unit assembly.
3. Remove intake sensor from evaporator, and then remove evap- orator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of low-pressure pipe 2 and high- pressure pipe 3 with new ones, and then apply
compressor oil to it when installing it.
 Female-side piping c onnection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
 Insert piping securely until a click is heard.
 After piping connection is comple ted, pull male-side piping by hand to make sure that connection
does not come loose. High-pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2076E
RJIA0928E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ATC-138
< SERVICE INFORMATION >
REFRIGERANT LINES
 O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2 (high-
pressure pipe 3).
 Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sensor
can be located in the same position.
 When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveINFOID:0000000001328230
REMOVAL
1. Remove evaporator. Refer to ATC-137, "Removal and Installation of Evaporator".
2. Remove mounting bolts, and then remove expansion valve. CAUTION:
Cap or wrap the joint of evaporator with suitable material
such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 Replace O-rings of evaporator with new ones, and then apply compressor oil to it when installing it.
 O-rings are different from low-pressure pipe 1 (h igh-pressure pipe 2) and low-pressure pipe 2 (high-
pressure pipe 3).
 When recharging refrigerant, check for leaks.
Checking of Refrigerant LeaksINFOID:0000000001328231
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage ma y indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
If dye is observed, c onfirm the leak with an electrical leak detector. It is possible a prior leak was repaired and
not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electric al leak detector, move the probe along the suspected
leak area at 1 to 2 inches per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electrical leak detector probe slower and closer to the suspected leak area will improve the
chances of finding a leak.
Checking System for Leaks Using the Fluore scent Leak DetectorINFOID:0000000001328232
1. Check A/C system for leaks using the UV lamp and safety goggles (SST: J-42220) in a low sunlight area
(area without windows preferable). Illuminate all co mponents, fittings and lines. The dye will appear as a
bright green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain open-
ing indicates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner (SST: J-43872) to prevent future
misdiagnosis. Low-pressure pipe 1 bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA1864E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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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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PRECAUTIONSAV-3
< SERVICE INFORMATION >
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612907
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.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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AUDIOAV-41
< SERVICE INFORMATION >
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3. Check the signal between audio unit harness connector M60 terminal 22 and ground with CONSULT-III or oscilloscope.
OK or NG
OK >> INSPECTION END (System is OK.)
NG >> Replace unified meter and A/C amp.
Locking CD Auto-Changer MechanismINFOID:0000000001328690
CAUTION:
 Prior to removing a malfunctioning CD auto-changer unit that will be shipped for repair, the changer mechanism MUST BE LOCKED to prevent the mech anism from being damaged during shipping.
 If a CD is jammed or unable to be removed from th e unit, do NOT lock the changer mechanism. If the
unit is to be shipped for repair, carefully package the unit to prevent vibration and shock.
DAMPER LOCK PROCEDURE
1. Eject and remove any CDs from the audio unit.
2. Turn ignition switch OFF. Wait until audio unit display is off and mechanism stops moving (mechanism
sound stops).
3. Press any one of the disc selection buttons once. When a display shows on the audio unit, press the
same disc selection button again within 5 seconds.
 The changer mechanism will lock itself within 10 seconds.
4. After mechanism stops moving (mechanism s ound stops), open the driver and passenger window, and
then disconnect negative battery cable.
NOTE:
After installing a new or remanufactured audio unit, switching the audio unit ON will automatically unlock the
mechanism. A special unlocking procedure is not required.
Removal and Installation of Audio UnitINFOID:0000000001328691
REMOVAL
1. Perform damper lock operation. Refer to AV-41, "Locking CD Auto-Changer Mechanism".
2. Remove cluster lid C. Refer to IP-10
.
3. Remove screws (6) with power tool, and remove audio unit with display and unified meter and A/C amp. from instrument panel.
4. Remove screws and remove audio unit.
INSTALLATION
Te r m i n a l Condition Reference
signal
(+) (–)
22 Ground When vehicle speed is ap-
prox. 40 km/h (25 MPH)
SKIA6809E
ELF1080D
SKIA5800E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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AV-42
< SERVICE INFORMATION >
AUDIO
Installation is the reverse order of removal.
Disassembly and Assembly of Audio UnitINFOID:0000000001328692
DISASSEMBLY
Remove audio unit screws (8) and display screws (4) and unified meter and A/C amp. screws (2) with power
tool and remove brackets.
ASSEMBLY
Assembly is the reverse order of disassembly.
NOTE:
Use appropriate screws for each, as screws for audio unit and display unit are different from that for unified
meter and A/C amp.
Removal and Installation for A/C and AV SwitchINFOID:0000000001328693
REMOVAL
1. Remove cluster lid C (1). Refer to IP-10.
2. Remove screws (3) and remove A/C and AV switch (2) from cluster lid C (1).
INSTALLATION
Installation is the reverse order of removal.
1. Display 2. Bracket (LH) 3. Audio unit
4. Screw (For metal) 5. Screw (For plastic) 6. Bracket (RH)
7. Unified meter and A/C amp.
SKIB8678E
1. Cluster lid C 2. A/C and AV switch 3. Screws
PKID0425E
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