2006 INFINITI FX35 removal

TRANSMISSION ASSEMBLY AT-271
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Revision: 2006 December 2006 FX35/FX45
11. Remove crankshaft position sensor (POS) from A/T assembly. CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
12. Remove starter motor. Refer to SC-16, "
VQ35DE ENGINE
MODELS (AWD)" (for VQ35DE) or SC-14, "VK45DE ENGINE
MODELS" (for VK45DE).
13. Disconnect fluid cooler tube from A/T assembly.
14. Remove rear plate cover. Refer to EM-36, "
Removal and Instal-
lation (AWD Models)" (for VQ35DE) or EM-187, "Removal and
Installation" (for VK45DE).
15. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
16. Remove dynamic damper (for VQ35DE). Refer to EM-118,
"Removal and Installation (AWD Models)" .
17. Support A/T assembly with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
18. Remove rear engine mounting member with power tool.
19. Remove engine mounting insulator (rear).
20. Tilt the A/T assembly slightly to keep the clearance between body and A/T assembly, and then disconnect air breather hose
from A/T fluid charging pipe. Refer to AT- 2 6 4 , "
Removal and
Installation" .
21. Disconnect A/T assembly harness connector and transfer assembly harness connector.
22. Remove A/T fluid charging pipe.
23. Remove O-ring from A/T fluid charging pipe.
24. Plug up openings such as the A/T fluid charging pipe hole, etc.
25. Remove bolts fixing transmission assembly to engine with power tool.
SCIA2011E
SCIA5326E
SCIA2010E
SCIA2202E

AT-272
TRANSMISSION ASSEMBLY
Revision: 2006 December 2006 FX35/FX45
26. Remove A/T assembly with transfer from vehicle.

Secure torque converter to prevent it from dropping.

Secure A/T assembly to a jack.
27. Remove transfer from A/T assembly. Refer to TF-44, "
Removal
and Installation" .
INSPECTION
Installation and Inspection of Torque Converter

After inserting a torque converter to a A/T, be sure to check dis-
tance “A” to ensure it is within the reference value limit.
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.

When installing A/T assembly to the engine assembly, attach the fixing bolts in accordance with the follow-
ing standard.
For VQ35DE models
For VK45DE models
*1 : No.2 bolt also secures A/T fluid charging pipe and washer.
*2 : No.4 bolt also secures bracket.
(A) : A/T to engine
SCIA2203E
Distance “A”
VQ35DE models : 25.0 mm (0.98 in) or more
VK45DE models : 22.0 mm (0.87 in) or more
SAT017B
Bolt No. 1 2 3 4
Number of bolts 1 5 2 1
Bolt length
“ ”mm (in) 55 (2.17) 65 (2.56) 35 (1.38) 40 (1.57)
Tightening torque
N·m (kg-m, ft-lb) 75
(7.7, 55) 47
(4.8, 35) 34
(3.5, 25)
SCIA4600E
Bolt No. 1 2*134*2
Number of bolts 4141
Bolt length mm (in) 70 (2.76) 70 (2.76) 65 (2.56) 70 (2.76)
Tightening torque
N·m (kg-m, ft-lb) 11 3
(12, 83) 74.0
(7.5, 55) 11 3
(12,83)
SCIA7756E

ATC-3
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Revision: 2006 December 2006 FX35/FX45 COMPONENT INSPECTION ...........................
. . 111
Intake Sensor Circuit ........................................... .. 112
COMPONENT DESCRIPTION ........................ .. 112
DIAGNOSIS PROCEDURE FOR INTAKE SEN-
SOR ................................................................. .. 112
COMPONENT INSPECTION ........................... .. 113
CONTROLLER ...................................................... ..114
Removal and Installation of A/C and AV Switch .. .. 114
REMOVAL ........................................................ .. 114
INSTALLATION ................................................ .. 114
AUTO AMP ............................................................ ..115
Removal and Installation of Unified Meter and A/C
Amp. .................................................................... .. 115
REMOVAL ........................................................ .. 115
INSTALLATION ................................................ .. 115
AMBIENT SENSOR ............................................... ..116
Removal and Installation ..................................... .. 116
REMOVAL ........................................................ .. 116
INSTALLATION ................................................ .. 116
IN-VEHICLE SENSOR ........................................... ..117
Removal and Installation ..................................... .. 117
REMOVAL ........................................................ .. 117
INSTALLATION ................................................ .. 117
SUNLOAD SENSOR ............................................. ..118
Removal and Installation ..................................... .. 118
REMOVAL ........................................................ .. 118
INSTALLATION ................................................ .. 118
INTAKE SENSOR .................................................. ..119
Removal and Installation ..................................... .. 119
REMOVAL ........................................................ .. 119
INSTALLATION ................................................ .. 119
BLOWER UNIT ...................................................... . 120
Removal and Installation ..................................... . 120
REMOVAL ........................................................ . 120
INSTALLATION ................................................ . 120
Disassembly and Assembly ................................ . 121
BLOWER MOTOR ................................................. . 122
Removal and Installation ..................................... . 122
REMOVAL ........................................................ . 122
INSTALLATION ................................................ . 122
INTAKE DOOR MOTOR ........................................ . 123
Removal and Installation ..................................... . 123
REMOVAL ........................................................ . 123
INSTALLATION ................................................ . 123
IN-CABIN MICROFILTER ...................................... . 124
Removal and Installation ..................................... . 124
FUNCTION ....................................................... . 124
REPLACEMENT TIMING ................................. . 124
REPLACEMENT PROCEDURES .................... . 124
HEATER & COOLING UNIT ASSEMBLY ............. . 125
Removal and Installation ..................................... . 125
REMOVAL ........................................................ . 125
INSTALLATION ................................................ . 126
Disassembly and Assembly ................................ . 128
MODE DOOR MOTOR .......................................... . 130
Removal and Installation ..................................... . 130
REMOVAL ........................................................ . 130
INSTALLATION ................................................ . 130 AIR MIX DOOR MOTOR ........................................
.131
Removal and Installation ..................................... .131
REMOVAL ........................................................ .131
INSTALLATION ................................................ .131
HEATER CORE ...................................................... .132
Removal and Installation ..................................... .132
REMOVAL ........................................................ .132
INSTALLATION ................................................ .132
DUCTS AND GRILLES .......................................... .133
Removal and Installation ..................................... .133
REMOVAL ........................................................ .133
INSTALLATION ................................................ .136
REFRIGERANT LINES .......................................... .137
HFC-134a (R-134a) Service Procedure .............. .137
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ............................................................... .137
Components ........................................................ .139
VQ35DE ........................................................... .139
VK45DE ............................................................ .140
Removal and Installation of Compressor ............. .140
REMOVAL ........................................................ .140
INSTALLATION ................................................ .142
Removal and Installation of Compressor Clutch . .142
REMOVAL ........................................................ .142
INSTALLATION ................................................ .144
Removal and Installation of Low-pressure Flexible
Hose .................................................................... .146
REMOVAL ........................................................ .146
INSTALLATION ................................................ .147
Removal and Installation of High-pressure Flexible
Hose .................................................................... .147
REMOVAL ........................................................ .147
INSTALLATION ................................................ .148
Removal and Installation of Low-pressure Pipe 1
(Engine Compartment) ........................................ .148
REMOVAL ........................................................ .148
INSTALLATION ................................................ .149
Removal and Installation of High-pressure Pipe 1
and 2 (Engine Compartment) .............................. .149
REMOVAL ........................................................ .149
INSTALLATION ................................................ .150
Removal and Installation of Low-pressure Pipe 2
and High-pressure Pipe 3 .................................... .150
REMOVAL ........................................................ .150
INSTALLATION ................................................ .152
Removal and Installation of Liquid Tank .............. .152
REMOVAL ........................................................ .152
INSTALLATION ................................................ .153
Removal and Installation of Condenser ............... .153
REMOVAL ........................................................ .153
INSTALLATION ................................................ .154
Removal and Installation of Refrigerant Pressure
Sensor ................................................................. .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .154
Removal and Installation of Evaporator ............... .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .155
Removal and Installation of Expansion Valve ...... .155

ATC-4Revision: 2006 December 2006 FX35/FX45 REMOVAL ........................................................
.155
INSTALLATION ................................................. .155
Checking for Refrigerant Leaks ........................... .156
Checking System for Leaks Using the Fluorescent
Leak Detector ...................................................... .156
Dye Injection ........................................................ .156
Electrical Leak Detector ....................................... .157
PRECAUTIONS FOR HANDLING LEAK DETECTOR ......................................................
.157
CHECKING PROCEDURE ............................... .158
SERVICE DATA AND SPECIFICATIONS (SDS) ... .160
Compressor ......................................................... .160
Lubricant .............................................................. .160
Refrigerant ........................................................... .160
Engine Idling Speed ............................................. .160
Belt Tension ......................................................... .160

PRECAUTIONS ATC-5
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Revision: 2006 December 2006 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NJS000D5
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.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNJS000D6
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

Always use CONSULT-II 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 power 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-II.

PRECAUTIONS ATC-9
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Revision: 2006 December 2006 FX35/FX45
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 than 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 between 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.
SJIA0106E
SJIA0107E

ATC-84
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
1. CHECK AMBIENT SENSOR AND INTAKE SENSOR CIRCUIT
Check ambient sensor and intake sensor. Refer to AT C - 5 3 , "
FUNCTION CONFIRMATION PROCEDURE" ,
see No. 9 and 11.
OK or NG
OK >> GO TO 2.
NG >>

Malfunctioning ambient sensor: Refer to ATC-103, "Ambient Sensor Circuit" .

Malfunctioning intake sensor: Refer to AT C - 11 2 , "Intake Sensor Circuit" .
2. PERFORM AUTO ACTIVE TEST
Refer to PG-21, "
Auto Active Test" .
Does the magnet clutch operate?
YES >>
WITH CONSULT-II: GO TO 5

WITHOUT CONSULT-II: GO TO 6.
NO >> Check 10A fuse (No. 79, located in IPDM E/R), and GO TO 3.
3. CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and compressor connector.
3. Check continuity between IPDM E/R harness connector E8 ter- minal 33 and compressor harness connector F2 terminal 1.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK MAGNET CLUTCH CIRCUIT
Check for operation sound when applying battery voltage direct cur-
rent to terminal.
OK or NG
OK >> 1. Replace IPDM E/R.
2. Go to self-diagnosis procedure AT C - 5 3 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-4. Confirm that magnet clutch opera-
tion normal.
NG >> 1. Replace magnet clutch. Refer to ATC-142, "
Removal
and Installation of Compressor Clutch" .
2. Go to self-diagnosis procedure AT C - 5 3 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-diagnosis STEP-4. Confirm that magnet
clutch operation normal.
33 – 1 : Continuity should exist.
RJIA2004E
RJIA2005E

ATC-88
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
11 . CHECK VOLTAGE FOR UNIFIED METER AND A/C AMP. (FAN ON SIGNAL)
1. Reconnect BCM connector and unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness connector M57 terminal 57 and ground using an oscilloscope.
OK or NG
OK >> GO TO 12.
NG-1 >> If the voltage is approx. 5 V when blower motor is ON: Replace unified meter and A/C amp.
NG-2 >> If the voltage is approx. 0 V when blower motor is OFF: Replace BCM. Refer to BCS-15,
"Removal and Installation of BCM" .
12. CHECK CAN COMMUNICATION
Check CAN communication. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-
Diagnosis)" .

BCM – ECM

ECM – IPDM E/R

ECM – Unified meter and A/C amp.
OK or NG
OK >> Replace ECM
NG >> Repair or replace malfunctioning part(s).
RJIA2010E
Terminals
Condition Voltage
(+)
(-)
Unified meter
and A/C amp. connector Terminal No.
M57 57 Ground A/C switch: ON
(Blower motor operates.) Approx. 0 V
OFF switch: ON
(A/C system: OFF)
SJIA1474J