2006 INFINITI FX35 air suspension

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PS-7
C
D E
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H I
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K L
M A
B
PS
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNGS000BS
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
PS-8PS-8PS-23PS-23PS-23PS-8PS-10PS-10
EM-15
,
EM-174PS-10PS-12PS-17PS-12PS-12PS-17
NVH in PR section
NVH in RFD section
NVH in FAX, RAX, FSU, RSU section NVH in WT section
NVH in WT section
NVH in FAX section
NVH in BR section
Possible cause and suspected parts
Fluid level
Air in hydraulic system
Outer socket ball joint swinging force
Outer socket ball joint rotating torque
Outer socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting rubber deterioration
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
PROPELLER SHAFT
DIFFERENTIAL
AXLE and SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
Symptom STEERING Noise
× × ××××× × × ×××××× ×
Shake ××× × ×××× ×
Vibration ××××× × ×× ×
Shimmy ××× × ××× ×
Judder ××××××

PS-10
STEERING WHEEL
Revision: 2006 December 2006 FX35/FX45
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceNGS000BW
CHECKING CONDITION OF INSTALLATION

Check installation condition of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check if the mounting bolts for steering gear assembly are loose
or not. Refer to PS-17, "
POWER STEERING GEAR AND LINK-
AGE" .
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumference when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to FSU-
6, "Wheel Alignment Inspection" .
1. Set vehicle to the straight direction, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen outer socket lock nuts of steering outer sockets, then adjust outer socket by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Remove driver air bag module from steering wheel. Refer to SRS-38, "
DRIVER AIR BAG MODULE" .
3. Start engine at idle, make steering fluid reach to normal operat- ing temperature [50 to 80 °C (122 to 176 °F)], then check steering
wheel turning torque with pre-load gauge (SST).
4. If steering wheel turning force is out of the specification, check relief hydraulic pressure of oil pump. Refer to PS-29, "
POWER
STEERING OIL PUMP" .
End play of the axle direction for steering wheel : 0 mm (0 in)
SGIA0546E
Steering wheel play on the outer circumference : 0
− 35 mm (0 − 1.38 in)
Turning torque : 7.45 N·m (0.76 kg-m, 66 in-lb) or less
SGIA0459E

RAX-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000CG
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
—
RAX-9—
RAX-5—
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section
Refer to REAR AXLE in this chart. NVH in WT section
NVH in WT section
Refer to DRIVE SHAFT in this chart. NVH in BR section
NVH in PS section
Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
REAR AXLE
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom DRIVE
SHAFT Noise
×× ×××××× ××
Shake ×× ×××××××
REAR
AXLE Noise
×× ××× ×××××
Shake ×××××××××
Vibration ×××××××
Shimmy ×× ×××××
Judder × × ×× ××
Poor quality ride or handling ×× × ××

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING RFD-7
C E F
G H
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K L
M A
B
RFD
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000BK
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
Refer to
RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-20, "
Tooth Contact
" .
Refer to RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-21, "
Backlash
" .
Refer to RFD-22, "
Companion Flange Runout
" .
Refer to RFD-9, "
Checking Differential Gear Oil
" .
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise ×××××××××××××

RSU-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000G3
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable Reference page
RSU-7RSU-9—
—
—
RSU-7RSU-5RSU-16
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section NVH in WT section
NVH in WT section
NVH in RAX section NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××

REAR SUSPENSION ASSEMBLY RSU-5
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RSU
Revision: 2006 December 2006 FX35/FX45
REAR SUSPENSION ASSEMBLYPFP:55020
On-Vehicle Inspection and ServiceNES000HU
Make sure the mounting conditions (looseness, back lash) of each component and component status (wear,
damage) are normal.
INSPECTION OF BALL JOINT END PLAY
Measure axial end play by installing and moving up/down with an
iron pry bar or something similar between suspension arm and axle.
CAUTION:
Be careful not to damage ball joint boot.
SHOCK ABSORBER INSPECTION
Check shock absorber for oil leakage, damage and replace if necessary.
Wheel Alignment InspectionNES000HV
DESCRIPTION

Measure wheel alignment under unladen conditions. “Unladen conditions” means that fuel, engine cool-
ant, and lubricant are full. Spare tire, jack, hand tools and mats in designated positions.
PRELIMINARY INSPECTION

Check tires for improper air pressure and wear.

Check road wheels for runout.

Check wheel bearing axial end play.

Check ball joint axial end play of suspension arm.

Check shock absorber operation.

Check each mounting point of axle and suspension for looseness and deformation.

Check each link, arm and member for cracks, deformation, and other damage.

Check vehicle posture.
GENERAL INFORMATION AND RECOMMENDATIONS

A four-wheel thrust alignment should be performed.
–This type of alignment is recommended for any NISSAN/INFINITI vehicle.
–The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is
centered.
–The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
–The rack should be checked to ensure that it is level.

Make sure the machine is properly calibrated.
–Your alignment equipment should be regularly calibrated in order to give correct information.
–Check with the manufacturer of your specific equipment for their recommended Service/Calibration
Schedule. Standard value
Axial end play : 0 mm (0 in)
SEIA0245J

WT-1
ROAD WHEELS & TIRES
E SUSPENSION
CONTENTS
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SECTION WT
A
B
WT
Revision: 2006 December 2006 FX35/FX45
ROAD WHEELS & TIRES
PRECAUTIONS ..................................................... ..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions ......................................................... ..... 3
Service Notice or Precautions ............................. ..... 4
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 5
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 6
NVH Troubleshooting Chart ................................ ..... 6
ROAD WHEEL ....................................................... ..... 7
Inspection ............................................................ ..... 7
ALUMINUM WHEEL ........................................ ..... 7
STEEL WHEEL ................................................ ..... 7
ROAD WHEEL TIRE ASSEMBLY ......................... ..... 8
Balancing Wheels (Bonding Weight Type) .......... ..... 8
REMOVAL ........................................................ ..... 8
WHEEL BALANCE ADJUSTMENT ................. ..... 8
Tire Rotation ........................................................ ..... 9
LOW TIRE PRESSURE WARNING SYSTEM ....... ... 10
System Components ........................................... ... 10
System Description ............................................. ... 10
TRANSMITTER ................................................ ... 10
REMOTE KEYLESS ENTRY RECEIVER ........ ... 10
BCM (BODY CONTROL MODULE) ................. .... 11
LOW TIRE PRESSURE WARNING LAMP ...... .... 11
DISPLAY UNIT ................................................. .... 11
CAN COMMUNICATION ....................................... ... 12
System Description ............................................. ... 12
TROUBLE DIAGNOSES ....................................... ... 13
Schematic ........................................................... ... 13
Wiring Diagram — T/WARN — ........................... ... 14
Control Unit Input/Output Signal Standard .......... ... 17
ID Registration Procedure ................................... ... 18
ID REGISTRATION WITH ACTIVATION TOOL ... 18
ID REGISTRATION WITHOUT ACTIVATION
TOOL ............................................................... ... 19
Transmitter Wake Up Operation .......................... ... 20 WITH ACTIVATION TOOL ...............................
... 20
Self-Diagnosis ..................................................... ... 21
DESCRIPTION ................................................. ... 21
FUNCTION ....................................................... ... 21
LOW TIRE PRESSURE WARNING LAMP DIAG-
NOSTIC CHART ............................................... ... 21
CONSULT-II Function .......................................... ... 22
FUNCTION ....................................................... ... 22
CONSULT-II SETTING PROCEDURE ............. ... 22
WORK SUPPORT MODE ................................ ... 23
SELF-DIAGNOSTIC RESULTS MODE ............ ... 23
DATA MONITOR MODE ................................... ... 24
ACTIVE TEST MODE ...................................... ... 24
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ... 27
INTRODUCTION .............................................. ... 27
WORK FLOW ................................................... ... 27
Preliminary Check ............................................... ... 28
Malfunction Code/Symptom Chart ....................... ... 29
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ..................................................................... ... 30
Inspection 1: Transmitter or Control Unit (BCM) .. ... 30
MALFUNCTION CODE NO. 21, 22, 23 OR 24 ... 30
Inspection 2: Transmitter - 1 ................................ ... 30
MALFUNCTION CODE NO. 31, 32, 33, 34, 41,
42, 43, 44, 45, 46, 47 OR 48 ............................ ... 30
Inspection 3: Transmitter - 2 ................................ ... 31
MALFUNCTION CODE NO. 35, 36, 37 OR 38 ... 31
Inspection 4: Vehicle Speed Signal ..................... ... 32
MALFUNCTION CODE NO. 52 ........................ ... 32
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... ... 33
Inspection 1: Warning Lamp Does Not Come On
When Ignition Switch Is Turned On ..................... ... 33
Inspection 2: Warning Lamp Stays On When Ignition
Switch Is Turned On ............................................ ... 33
Inspection 3: Warning Lamp Blinks When Ignition
Switch Is Turned On ............................................ ... 35
Inspection 4: Turn Signal Lamp Blinks When Ignition
Switch Is Turned On ............................................ ... 36
Inspection 5: ID Registration Can Not Be Completed ... 36

WT-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 December 2006 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000GL
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
× : Applicable
Reference page
FAX-4
,
FAX-10
, FSU-6
WT-7—
—
—
—
—
—
NVH in PR section
NVH in RFD section
NVH in FAX and FSU section
NVH in RAX and RSU section
Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart. NVH in FAX, RAX sectionNVH in BR section NVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Out-of-round
Imbalance
Incorrect tire pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom TIRES Noise
× ×××××× ×××× ××××
Shake × ××××× ×× ×× ××××
Vibration ×××××××
Shimmy × ××××××× ×× × ××
Judder × ××××× × ×× × ××
Poor quality ride
or handling × ××××× × ×× ×
ROAD WHEEL Noise
× ×× × ××××× ×××
Shake × ×× × × ××× ×××
Shimmy, Judder × ×× × ××× ××
Poor quality ride
or handling × ×× × ×××