2006 INFINITI FX35 engine removal

MA-28
ENGINE MAINTENANCE (VK45DE ENGINE)
Revision: 2006 December 2006 FX35/FX45

Do not use wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Install in the reverse order of removal.
Checking EVAP Vapor LinesNLS0006K
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.
Refer to EC-699, "
EVAPORATIVE EMISSION SYSTEM" .
Cleaner air pressure:
Less than 588 kPa (6 kg/cm
2 , 85 psi)
Cleaning time: Less than 20 seconds
SMA773C
SMA806CA
Spark plug:
: 24.6 N·m (2.5 kg-m, 18 ft-lb)

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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SECTION PG
A
B
PG
Revision: 2006 December 2006 FX35/FX45
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
POWER SUPPLY ROUTING CIRCUIT ................. ..... 3
Schematic ........................................................... ..... 3
Wiring Diagram — POWER — ............................ ..... 4
BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ........................................... ..... 4
ACCESSORY POWER SUPPLY — IGNITION
SW. IN “ACC” OR “ON” .................................... ... 10
IGNITION POWER SUPPLY — IGNITION SW.
IN “ON” AND/OR “START” ............................... ... 12
Fuse .................................................................... ... 16
Fusible Link ......................................................... ... 16
Circuit Breaker .................................................... ... 16
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ................................... ... 17
System Description ............................................. ... 17
SYSTEMS CONTROLLED BY IPDM E/R ........ ... 17
CAN COMMUNICATION LINE CONTROL ...... ... 17
IPDM E/R STATUS CONTROL ........................ ... 18
CAN Communication System Description ........... ... 18
CAN Communication Unit ................................... ... 18
Function of Detecting Ignition Relay Malfunction ... 18
CONSULT-II Function (IPDM E/R) ...................... ... 19
CONSULT-II INSPECTION PROCEDURE ...... ... 19
SELF-DIAG RESULTS ..................................... ... 19
DATA MONITOR .............................................. ... 19
ACTIVE TEST .................................................. ... 20
Auto Active Test .................................................. ... 21
DESCRIPTION ................................................. ... 21
OPERATION PROCEDURE ............................ ... 21
INSPECTION IN AUTO ACTIVE TEST MODE ... 22
Schematic ........................................................... ... 24
IPDM E/R Terminal Arrangement ........................ ... 25
IPDM E/R Power/Ground Circuit Inspection ....... ... 26
Inspection With CONSULT-II (Self-Diagnosis) .... ... 27
Removal and Installation of IPDM E/R ................ ... 28
REMOVAL ........................................................ ... 28
INSTALLATION ................................................ ... 28 GROUND ................................................................
... 29
Ground Distribution .............................................. ... 29
MAIN HARNESS .............................................. ... 29
ENGINE ROOM HARNESS ............................. ... 32
ENGINE HARNESS/VK ENGINE MODELS ..... ... 35
ENGINE HARNESS/VQ ENGINE MODELS .... ... 36
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 37
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 38
BODY HARNESS ............................................. ... 39
BODY NO. 2 HARNESS .................................. ... 42
ROOM LAMP HARNESS ................................. ... 43
HARNESS .............................................................. ... 44
Harness Layout ................................................... ... 44
HOW TO READ HARNESS LAYOUT .............. ... 44
OUTLINE .......................................................... ... 45
MAIN HARNESS .............................................. ... 46
ENGINE ROOM HARNESS ............................. ... 49
ENGINE HARNESS/VK ENGINE MODELS ..... ... 52
ENGINE HARNESS/VQ ENGINE MODELS .... ... 53
ENGINE CONTROL HARNESS/VK ENGINE
MODELS .......................................................... ... 54
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS .......................................................... ... 56
BODY HARNESS ............................................. ... 58
BODY NO. 2 HARNESS .................................. ... 60
ROOM LAMP HARNESS ................................. ... 61
FRONT DOOR HARNESS ............................... ... 62
REAR DOOR HARNESS ................................. ... 63
BACK DOOR HARNESS ................................. ... 64
Wiring Diagram Codes (Cell Codes) ................... ... 65
ELECTRICAL UNITS LOCATION ......................... ... 68
Electrical Units Location ...................................... ... 68
ENGINE COMPARTMENT ............................... ... 68
PASSENGER COMPARTMENT ...................... ... 69
LUGGAGE COMPARTMENT ........................... ... 71
HARNESS CONNECTOR ...................................... ... 72
Description ........................................................... ... 72
HARNESS CONNECTOR (TAB-LOCKING

PG-28
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 December 2006 FX35/FX45
Removal and Installation of IPDM E/RNKS003GL
REMOVAL
1. Remove battery. Refer to SC-7, "Removal and Installation" .
2. Remove IPDM E/R cover A. While pressing pawl on backside of IPDM E/R cover B toward vehicle front to unlock, lift up IPDM E/
R.
3. While pressing pawls on right and left side of IPDM E/R, remove IPDM E/R cover B from IPDM E/R.
4. Remove harness connector from IPDM E/R.
INSTALLATION
Installation is the reverse order of removal.
SKIA4968E
SKIA1902E
SKIA4969E

FRONT PROPELLER SHAFT PR-5
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M A
B
PR
Revision: 2006 December 2006 FX35/FX45
Removal and InstallationNDS000AV
REMOVAL
1. Remove the front and rear engine undercover with a power tool.
2. Remove the front cross bar with a power tool. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
3. Remove the exhaust front tube bracket with a power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
4. Disconnect the heated oxygen sensor harness connector.
5. Remove the exhaust front tube mounting nuts with a power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
6. Remove the right bank three way catalyst with a power tool. Refer to EM-26, "
Removal and Installation"
(VQ35DE), EM-183, "Removal and Installation" (VK45DE).
7. Remove the power steering piping mounting bolts. Refer to PS-
39, "HYDRAULIC LINE" .
8. Remove the power steering gear box fixing bolts to secure work- ing area for removal of propeller shaft. Refer to PS-17, "
POWER
STEERING GEAR AND LINKAGE" .
CAUTION:
Be careful not to damage the steering gear box piping dur-
ing removal.
9. Put matching marks onto propeller shaft flange yoke and final drive companion flange.
CAUTION:
For matching mark, use paint. Do not damage propeller
shaft flange and companion flange.
10. Remove the propeller shaft fixing bolts.
11. Set the transmission jack at the transfer, remove rear engine mounting bolts, and then lower transmission jack about 40 - 50
mm (0.16 - 0.21 in).
12. Remove propeller shaft from the front final drive and transfer.
INSPECTION

Inspect propeller shaft runout at measuring point. If runout
exceeds specifications, replace propeller shaft assembly. For
measuring point, refer to PR-4, "
Propeller Shaft Runout Measur-
ing Point" .
SDIA1516E
SDIA1517E
SDIA1518E
Propeller shaft runout limit : 0.8 mm (0.031 in)
SPD106

STEERING WHEEL PS-11
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PS
Revision: 2006 December 2006 FX35/FX45
CHECKING FRONT WHEEL TURNING ANGLE

Check front wheel turning angle after the toe-in inspection.
Place front wheels on turning radius gauges and rear wheels on
stands so that vehicle can be level. Check the maximum inner
and outer wheel turning angles for LH and RH road wheels.

Start engine and run at idle, turn steering wheel all the way right
and left, measure the turning angle.

Any turning angles are not adjustable. If any of steering angles
are out of the specification, check if the following parts are wear
or damaged.
–Steering gear
–St ee rin g c o lum n
–Front suspension components
If found that they are worn or damaged, replace them with new ones respectively.
Removal and InstallationNGS000BX
Refer to PS-12, "STEERING COLUMN" .
FAA0016D
Tire Size 18 inch and 20 inch
Inner wheel (Angle: A) Minimum 32
°00’ (32.0 °)
Nominal 35 °00’ (35.0 °)
Maximum 36 °00’ (36.0 °)
Outer wheel (Angle: B) Nominal 30 °00’ (30.0 °)
SGIA0055E

PS-30
POWER STEERING OIL PUMP
Revision: 2006 December 2006 FX35/FX45
1. Connect oil pressure gauge (SST) and oil pressure gauge adapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 to 80 °C (122 to 176 °F).
CAUTION:

Warm up engine with shut-off valve fully opened. If engine is started with shut-off valve closed,
fluid pressure in power steering pump increases to maximum. This will raise fluid temperature
excessively.

Be careful not to contact hose with belt when engine is started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly. If relief oil pressure is outside the specification, disassemble and repair oil pump. Refer to PS-35, "
Disas-
sembly and Assembly (VK45DE Models)" .
5. After inspection, disconnect oil pressure gauge (SST) and oil pressure gauge adapter (SST) from hydrau- lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly. Refer to PS-8, "
Air Bleeding Hydraulic System" .
Removal and Installation (VQ35DE Models)NGS000C6
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Loosen belt tensioner adjust screw, then remove belt from oil pump pulley. Refer to EM-15, "
DRIVE
BELTS" .
3. Drain power steering fluid from reservoir tank.
SGIA0570E
SST
Pressure gauge and shut-off valve KV48103500
(J26357 and
J26357-10)
Oil pump side Connector A and
O-ring KV48105300-4
and 5295262U10
(—)
Eye-bolt and O-
ring KV48105300-3
and 5295262U00
(—)
High pressure
piping side Connector B and
O-ring KV48105300-1
and 5295262U00
(—)
Nut KV48105300-2 ( — )
SGIA0572E
Relief oil pressure:
9,900 - 10,700 kPa (101 - 109.1 kg/cm
2 , 1436 - 1552 psi)

POWER STEERING OIL PUMP PS-31
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B
PS
Revision: 2006 December 2006 FX35/FX45
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-39,
"HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-39, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.

After installation, adjust belt tension. Refer to EM-15, "DRIVE BELTS" .

After installation, bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" .
Removal and Installation (VK45DE Models)NGS000C7
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Remove power steering oil pump belt from auto tensioner. Refer to EM-174, "
DRIVE BELTS" .
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure from power steering oil pump (drain fluid from their pip- ings). Refer to PS-39, "
HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-39, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.
After installation, bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
NOTE:
Adjustment of belt tension is no necessary because engine of this model equips auto tensioner.
Disassembly and Assembly (VQ35DE Models)NGS000C8
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.

Oil leakage from oil pump

Deformed or damaged pulley
1. Rear cover 2. Teflon ring 3. O-ring
4. Rear side plate 5. Rotor snap ring 6. Dowel pin
7. Cam ring 8. Rotor 9. Vane
10. Cartridge 11. Front side plate 12. O-ring
13. Flow control valve A 14. Spring 15. Flow control valve B assembly
16. Body assembly 17. Oil seal 18. Pulley
19. O-ring 20. Suction pipe 21. Bracket
SGIA0622E

SC-1
STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION SC
A
B
SC
Revision: 2006 December 2006 FX35/FX45
STARTING & CHARGING SYSTEM
PRECAUTIONS ..................................................... ..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tools ................................... ..... 3
BATTERY ............................................................... ..... 4
How to Handle Battery ........................................ ..... 4
METHODS OF PREVENTING OVER-DIS-
CHARGE .......................................................... ..... 4
CHECKING ELECTROLYTE LEVEL ............... ..... 5
SPECIFIC GRAVITY CHECK .......................... ..... 5
CHARGING THE BATTERY ............................ ..... 6
Trouble Diagnoses with Battery Service Center .. ..... 7
Removal and Installation ..................................... ..... 7
REMOVAL ........................................................ ..... 7
INSTALLATION ................................................ ..... 7
STARTING SYSTEM ............................................. ..... 8
System Description ............................................. ..... 8
Wiring Diagram — START — .............................. ..... 9
VK45DE ENGINE MODELS ............................ ..... 9
VQ35DE ENGINE MODELS ............................ ... 10
Trouble Diagnosis with Starting/Charging System
Tester (Starting) ................................................... .... 11
DIAGNOSTIC PROCEDURE 1 ........................ ... 12
DIAGNOSTIC PROCEDURE 2 ........................ ... 13
MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ...................................................... ... 13
Removal and Installation ..................................... ... 14 VK45DE ENGINE MODELS .............................
... 14
VQ35DE ENGINE MODELS (2WD) ................. ... 15
VQ35DE ENGINE MODELS (AWD) ................. ... 16
Disassembly and Assembly ................................. ... 17
VK45DE ENGINE MODELS ............................. ... 17
VQ35DE ENGINE MODELS (2WD) ................. ... 18
VQ35DE ENGINE MODELS (AWD) ................. ... 19
INSPECTION AFTER DISASSEMBLY ............. ... 19
CHARGING SYSTEM ............................................ ... 20
System Description .............................................. ... 20
MALFUNCTION INDICATOR ........................... ... 20
Wiring Diagram — CHARGE — .......................... ... 21
VK45DE ENGINE MODELS ............................. ... 21
VQ35DE ENGINE MODELS ............................ ... 22
Trouble Diagnosis with Starting/Charging System
Tester (Charging) ................................................. ... 23
PRELIMINARY INSPECTION .......................... ... 24
DIAGNOSTIC PROCEDURE 1 ........................ ... 25
DIAGNOSTIC PROCEDURE 2 ........................ ... 25
DIAGNOSTIC PROCEDURE 3 ........................ ... 25
DIAGNOSTIC PROCEDURE 4 ........................ ... 26
Removal and Installation ..................................... ... 27
VK45DE ENGINE MODELS ............................. ... 27
VQ35DE ENGINE MODELS ............................ ... 28
Disassembly and Assembly ................................. ... 30
VK45DE ENGINE MODELS ............................. ... 30
VQ35DE ENGINE MODELS ............................ ... 31
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 32
Battery ................................................................. ... 32
Starter .................................................................. ... 32
Alternator ............................................................. ... 32