2008 INFINITI FX35 installation

AT-248
< SERVICE INFORMATION >
TRANSMISSION ASSEMBLY
 Align the positions of tightening bolts for drive plate with those ofthe torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque. Refer to "COMPO-
NENTS (FOR VQ35DE)" or "COMPONENTS (FOR VK45DE)".
CAUTION:
 Do not reuse O-ring and copper washers.
 When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
 When tightening the tightening bolts for the torque converter
after fixing the crankshaft pulley bolts, be sure to confirm the
tightening torque of the crankshaft pulley mounting bolts.
Refer to EM-65, "
Removal and Installation" (for VQ35DE) or
EM-200, "
Removal and Installation" (for VK45DE)
 After converter is installed to drive plate, rota te crankshaft several turns and check to be sure that
transmission rotates fr eely without binding.
 Install crankshaft position sensor (POS). Refer to EM-35, "
Component (AWD Models)" (for VQ35DE) or EM-
183, "Component" (for VK45DE).
 After completing installation, check A/T fluid leakage, A/T fluid level, and the positions of A/T. Refer to AT- 11 ,
"Checking A/T Fluid", AT-207, "Checking of A/T Position".
SCIA2010E
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REPAIR FOR COMPONENT PARTSAT-289
< SERVICE INFORMATION >
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2. Using a flat-bladed screwdriver, install snap ring in front sun gear.
3. Check operation of 3rd one-way clutch.
a. Hold oil pump assembly and turn front sun gear.
b. Check 3rd one-way clutch for correct locking and unlocking directions.
CAUTION:
If not as shown in the figure, check installation direction of
3rd one-way clutch.
Front Carrier, Input Clut ch, Rear Internal GearINFOID:0000000001327406
COMPONENTS
SCIA3110E
SCIA3131E
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AT-300
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
5. Install needle bearing to high and low reverse clutch hub.CAUTION:
 Take care with the direction of needle bearing. Refer toAT-264, "
Location of Adjusting Sh ims, Needle Bearings,
Thrust Washers and Snap Rings".
 Apply petroleum jelly to needle bearing.
6. Install high and low reverse clutch hub to mid sun gear assem- bly.
7. Using pair of snap ring pliers, install snap ring to mid sun gear assembly.
CAUTION:
Do not expand snap ring excessively.
8. Check operation of 1st one-way clutch.
a. Hold mid sun gear and turn rear sun gear.
b. Check 1st one-way clutch for correct locking and unlocking directions.
CAUTION:
If not as shown in the figure , check installation direction of
1st one-way clutch.
9. Install needle bearing and bearing races to high and low reverse clutch hub. CAUTION:
 Take care with the direction of needle bearing . Refer to AT-264, "
Location of Adjusting Shims,
Needle Bearings, Thrust Washers and Snap Rings".

Apply petroleum jelly to need le bearing and bearing races.
SCIA2857E
SCIA2856E
SCIA2855E
SCIA3132E
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AT-326
< SERVICE INFORMATION >
ASSEMBLY
g. Install control valve with TCM in transmission case.CAUTION:
 Make sure that turbine revolu tion sensor securely installs
turbine revolution sensor hole.
 Hang down revolution senso r harness toward outside so
as not to disturb installation of control valve with TCM.
 Adjust A/T assembly harness co nnector of control valve
with TCM to terminal hole of transmission case.
 Assemble it so that manual valve cutout is engaged with manual plate projection.
h. Install bolts A, B and C to control valve with TCM.  : Front
i. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After that tighten them in order (1 → 2 → 3), and then tighten other
bolts to the specified torque. Refer to AT-249, "
Component".
 : Front
SCIA5034E
SCIA5035E
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA8077E
SCIA8078E
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ATC-1
AIR CONDITIONER
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CONTENTS
AUTOMATIC AIR CONDITIONER
SERVICE INFORMATION .. ..........................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
3
Precaution for Procedure without Cowl Top Cover ......4
Precaution for Working with HFC-134a (R-134a) ......4
General Refrigerant Precaution ................................4
Precaution for Refrigerant Connection ......................5
Precaution for Service of Compressor ......................9
Precaution for Service Equipment .............................9
Precaution for Leak Detection Dye .........................11
PREPARATION ..................................................13
Special Service Tool ........................................... ....13
HFC-134a (R-134a) Service Tool and Equipment ....13
Commercial Service Tool ........................................16
REFRIGERATION SYSTEM ..............................17
Refrigerant Cycle ................................................ ....17
Refrigerant System Protection ................................17
V-6 Variable Displacement Compressor .................17
Component Part Location .......................................21
LUBRICANT ................................................... ....22
Maintenance of Lubricant Quantity in Compressor ....22
AIR CONDITIONER CONTROL .........................24
Description of Air Conditioner LAN Control Sys-
tem ...................................................................... ....
24
System Construction ...............................................24
Description of Control System .................................27
Control Operation ....................................................27
Fail-Safe Function ...................................................28
Discharge Air Flow ..................................................29
System Description .................................................30
CAN Communication System Description ...............30
TROUBLE DIAGNOSIS .....................................32
CONSULT-III Function ........................................ ....32
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
32
Component Parts and Harness Connector Loca-
tion ...........................................................................
34
Schematic ................................................................36
Wiring Diagram - A/C - ............................................37
Auto Amp. Terminal and Reference Value ..............42
Self-Diagnosis Function ...........................................43
Operational Check ...................................................50
Power Supply and Ground Circuit for Auto Amp .....52
LAN System Circuit .................................................54
Mode Door Motor Circuit .........................................57
Air Mix Door Motor Circuit .......................................59
Air Mix Door Motor PBR Circuit ...............................62
Intake Door Motor Circuit .........................................62
Blower Motor Circuit ................................................64
Magnet Clutch Circuit ..............................................69
Insufficient Cooling ..................................................75
Insufficient Heating ..................................................82
Noise .......................................................................83
Self-Diagnosis .........................................................84
Memory Function .....................................................85
Ambient Sensor Circuit ............................................86
In-vehicle Sensor Circuit ..........................................88
Sunload Sensor Circuit ............................................91
Intake Sensor Circuit ...............................................94
CONTROLLER ..................................................97
Removal and Installation of A/C and AV Switch ......97
AUTO AMP ........................................................98
Removal and Installation of Unified Meter and A/C
Amp .........................................................................
98
AMBIENT SENSOR ..........................................99
Removal and Installation .........................................99
IN-VEHICLE SENSOR ....................................100
Removal and Installation .......................................100
SUNLOAD SENSOR .......................................101
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ATC-2
Removal and Installation .......................................101
INTAKE SENSOR ............................................102
Removal and Installation ..................................... ..102
BLOWER UNIT ................................................103
Removal and Installation ..................................... ..103
Disassembly and Assembly ...................................104
BLOWER MOTOR ...........................................105
Removal and Installation ..................................... ..105
INTAKE DOOR MOTOR ..................................106
Removal and Installation ..................................... ..106
IN-CABIN MICROFILTER ................................107
Removal and Installation ..................................... ..107
HEATER & COOLING UNIT ASSEMBLY .......108
Removal and Installation ..................................... ..108
Disassembly and Assembly ...................................111
MODE DOOR MOTOR ....................................113
Removal and Installation ..................................... ..113
AIR MIX DOOR MOTOR ..................................114
Removal and Installation ..................................... ..114
HEATER CORE ...............................................115
Removal and Installation ..................................... ..115
DUCTS AND GRILLES ....................................116
Removal and Installation ..................................... ..116
REFRIGERANT LINES ....................................120
HFC-134a (R-134a) Service Procedure .............. ..120
Component .......................................................... .121
Removal and Installation of Compressor ..............123
Removal and Installation of Compressor Clutch ...125
Removal and Installation of Low-Pressure Flexi-
ble Hose ............................................................... .
128
Removal and Installation of High-pressure Flexi-
ble Hose ................................................................
129
Removal and Installation of Low-Pressure Pipe 1
(Engine Compartment) ..........................................
131
Removal and Installation of High-pressure Pipe 1
and 2 (Engine Compartment) ................................
132
Removal and Installation of Low-Pressure Pipe 2
and High-pressure Pipe 3 .....................................
133
Removal and Installation of Liquid Tank ...............134
Removal and Installation of Condenser ................135
Removal and Installation of Refrigerant Pressure
Sensor .................................................................. .
137
Removal and Installation of Evaporator ................137
Removal and Installation of Expansion Valve .......138
Checking of Refrigerant Leaks ............................. .138
Checking System for Leaks Using the Fluorescent
Leak Detector ........................................................
138
Dye Injection .........................................................139
Electrical Leak Detector ........................................139
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
142
Compressor ......................................................... .142
Lubricant ...............................................................142
Refrigerant ............................................................142
Engine Idling Speed ..............................................142
Belt Tension ..........................................................142
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PRECAUTIONSATC-3
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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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ATC-6
< SERVICE INFORMATION >
PRECAUTIONS
 Garter spring cannot be removed from cage of male-side piping.
 Indicator ring remains near piping connection point, however, this is not a malfunction. (This is to check pip-
ing connection during factory assembly.)
REMOVAL
1. Clean piping connection point, and set a disconnector.
2. Slide disconnector in axial direction of piping, and stretch garter spring with tapered point of disconnector.
3. Slide disconnector farther so that inside diameter of garter spring becomes larger than outside diameter of
female-side piping flare. Then male-side piping can be disconnected.
INSTALLATION
1. Clean piping connection points, and insert male-side piping into female-side piping.
2. Push inserted male-side piping harder so that female-side piping flare stretches garter spring.
3. If inside diameter of garter spring becomes larger t han outside diameter of female-side piping flare, garter
spring seats on flare. Then, it fits in between male-side piping cage and female-side piping flare to anchor
piping connection point.
NOTE:
When garter spring seats on flare, and fits in betw een male-side piping cage and female-side piping flare,
it clicks.
CAUTION:
 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.
 After piping connection is comple ted, pull male-side piping by hand to make sure that connec-
tion does not come loose.
NOTE: One-touch joint connection is used in points below.
SJIA0106E
SJIA0107E
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