suspension INFINITI M35 2007 Factory Service Manual

ABCDEFGHIJKMLQUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemSTCSteering Control SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System
(SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio-Visual SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: January 2005
Revision:April 2007

BODY REPAIR
BL-283
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
1. Front strut housing
2. Upper front hoodledge
3. Upper rear hoodledge
4. Hoodledge reinforcement
5. Upper dash assembly
6. Upper dash crossmember assembly
7. Harness clamp bracket
8. Cowl top
9. Lower center dash crossmember reinforcement
10. Lower dash crossmember reinforcement
11. Lower dash crossmember assembly (LH)
12. Lower dash crossmember (RH)
13. Front crossmember center
14. Steering column mounting reinforcement
15. Lower dash
16. Front floor center
17. Front floor
18. Inner sill
19. Rear seat crossmember reinforcement assembly
20. Front carpet bracket
21. Rear floor front
22. Rear floor seat belt anchor reinforcement
23. Rear seat reclining device bracket
24. Rear floor rear
25. Differential mounting bracket assembly
26. Rear floor side assembly
27. Rear bumper side stay
28. Front side member assembly
29. Front side member front extension
30. Front side member closing plate assembly
31. Front side member front closing plate
32. Front side member center closing plate
33. Front suspension mounting bracket
34. Front side member rear extension
35. Front side member rear reinforcement
36. Front side member outrigger assembly
37. Rear seat crossmember
38. 2ND rear crossmember
39. Rear crossmember
40. Rear side member assembly
41. Rear side member extension

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
BR-5
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNFS000RS
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
BR-22
, BR-28
BR-22
, BR-28

BR-22
, BR-28

—
—
BR-27
, BR-33

—
—
—
BR-27
, BR-33

—
NVH in PR section
NHV in FFD and RFD section
NVH in FAX, RAX and FSU, RSU section
NVH in WT section
NVH in WT section
NVH in FAX and RAX section
NVH in PS section
Possible cause and
SUSPECTED PARTS
Pads - damaged
Pads - uneven wear
Shims damaged
Rotor imbalance
Rotor damage
Rotor runout
Rotor deformation
Rotor deflection
Rotor rust
Rotor thickness variation
Drum out of round
PROPELLER SHAFT
DIFFERENTIAL
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
STEERING
Symptom BRAKENoise××× ×× ×××
××
Shake×××××
××
Shimmy, Judder××××××× ××× ×

BRC-4
[VDC/TCS/ABS]
PRECAUTIONS
Revision: 2007 April2007 M35/M45
Precautions for Brake ControlNFS000Q1

Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is normal condition.

When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check brake booster operation, brake fluid
level, and oil leaks.

If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.

ABS might be out of order or malfunctions by putting a radio (wiring inclusive), an antenna and a lead-in
wire near the control unit.

If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.

VDC system may not operate normally or a VDC OFF indicator lamp or SLIP indicator lamp may light.
–When replacing the following parts with parts other than genuine parts or making modifications: Suspen-
sion-related parts (shock absorber, spring, bushing, etc.), tires, wheels (other than specified sizes), brake-
related parts (pad, rotor, caliper, etc.), engine-related parts (muffler, ECM, etc.) and body reinforcement-
related parts (roll bar, tower bar, etc.).
–When driving with worn or deteriorated suspension, tires and brake-related parts.

BRC-6
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
Revision: 2007 April2007 M35/M45
ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionNFS000Q4
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
×: Required
–: Not required
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done without CONSULT-II.)
1. Stop vehicle with front wheels in straight-ahead position.
2. Perform “CONSULT-II Starting Procedure”. Refer to GI-38, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON and touch the CONSULT-II screen in the order of “ABS”, “WORK SUPPORT” and
“ST ANG SEN ADJUSTMENT”.
4. Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5. After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
7. Run vehicle with front wheels in straight-ahead position, then
stop.
8. Select “DATA MONITOR”, “ECU INPUT SIGNALS”, and “STR ANGLE SIG” on CONSULT-II screen. Then
make sure “STR ANGLE SIG” is within 0±2.5°. If value is more than specification, repeat steps 1 to 7.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM. ABS actuator and electric unit
(control unit): Refer to BRC-24, "
ERASE MEMORY" . ECM: Refer to EC-90, "TROUBLE DIAGNOSIS"
(VQ35DE), EC-792, "TROUBLE DIAGNOSIS" (VK45DE).
10. Turn ignition switch OFF.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit)−
Replacing ABS actuator and electric unit (control unit)×
Removing/Installing steering angle sensor×
Removing/Installing steering components×
Removing/Installing suspension components×
Change tires to new ones–
Tire rotation–
Adjusting wheel alignment×
SFIA0793E

BRC-32
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
For Fast and Accurate DiagnosisNFS000QJ
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read General Information (GI) to confirm general precautions. Refer
to GI-4, "
General Precautions" .

If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit
(control unit) or tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neu-
tral position of steering angle sensor before driving. Refer to BRC-6, "
Adjustment of Steering Angle Sen-
sor Neutral Position" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-24, "ERASE MEMORY" .

When checking continuity and voltage between unit, be sure to check for disconnection, looseness, bend,
or collapse of connector terminals. If any malfunction is found, repair or replace connector terminals.

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

The following symptoms may be caused by normal operations.
Symptom Symptom description Result
Motor operation soundThis is sound of motor inside VDC actuator. Slight sound may occur
during VDC, TCS, and ABS operation.
Normal
Just after engine starts, the motor operating sound may be heard.
This is a normal condition of the system operation check.
System operation check soundWhen engine starts, slight “click” sound may be heard from engine
room. This is normal and is part of system operation check.Normal
VDC/TCS operation
(SLIP indicator lamp ON)TCS may activate momentarily if wheel speed changes when driving
over location where friction varies, when downshifting, or when fully
depressing accelerator pedal.Normal
Cancel the VDC/TCS
function for the inspec-
tion on a chassis dyna-
mometer. When checking speed meter etc. With a 2-wheel-drive chassis dyna-
mometer, vehicle speed is not increased by pressing down on the
accelerator.
ABS operation
(Longer stopping distance)On roads with low friction, such as snowy roads or gravel roads, vehi-
cles with ABS may require a longer stopping distance. Therefore,
when driving on such roads, avoid overconfidence and keep speed
sufficiently low.Normal
Insufficient feeling of accelerationDepending on road conditions, driver may feel that feeling of acceler-
ation is insufficient. This is because traction control, which controls
engine and brakes to achieve optimal traction, has the highest priority
(for safety). As a result, there may be times when acceleration is
slightly less than usual for the same accelerator pedal operation.Normal

DI-84
LANE DEPARTURE WARNING SYSTEM
Revision: 2007 April2007 M35/M45
11. Touch “START”.
12. Check the display item.
a. When “NORMALLY COMPLETED” is displayed, touch “COM-
PLETION”.
b. Perform the following services when displayed “SUSPENSION”
or “ABNORMALLY COMPLETED”.
NOTE:
Replace camera unit if “suspension” is repeatedly indicated though the above two service is performed.
13. Check if “NORMALLY COMPLETED” is displayed and close the
aiming adjustment procedure by touching “END”.
Check After The Adjustment
1. Perform the LDW camera unit self-diagnosis. Refer to DI-88, "CONSULT-II Function (LDW)" .
2. Test the LDW system operation by running test. Refer to DI-77, "
LDW SYSTEM RUNNING TEST" .
SKIB3150E
SKIB3151E
SKIB3152E
Displays item Service procedure
SUSPENSION00H Routine not activated
Position the target appropriately, and perform the aiming again.
Refer to DI-78, "
Camera Aiming Adjustment" . 10H Writing error
ABNORMALLY COMPLETED —
SKIB3153E

FAX-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000FE
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
—
FAX-14—
FAX-5—
FAX-5
NVH in FAX and FSU sections
Refer to Front 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
Wheel bearing damage
FRONT AXLE AND FRONT SUSPENSION
FRONT AXLE
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
SymptomDRIVE
SHAFTNoise×× ××××× ××
Shake× × ××××× ××
FRONT
AXLENoise×××× ×××××
Shake×××× ×××××
Vibration×××× × × ×
Shimmy×××××××
Judder× × ×× ××
Poor quality ride or handling×××××

FFD-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000EO
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
Refer to FFD-24, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to FFD-17, "
Tooth Contact
" .
Refer to FFD-24, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to FFD-19, "
Backlash
" .
Refer to FFD-19, "
Companion Flange Runout
" .
Refer to FFD-8, "
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×××××××××××××

FRONT FINAL DRIVE ASSEMBLY
FFD-13
C
E
F
G
H
I
J
K
L
MA
B
FFD
Revision: 2007 April2007 M35/M45
FRONT FINAL DRIVE ASSEMBLYPFP:38500
Removal and InstallationNDS000EU
COMPONENTS
REMOVAL
1. Remove front drive shaft both. Refer to FA X - 11 , "Removal and Installation" .
2. Remove front crossbar with power tool.
3. Separate steering outer socket and steering knuckle. Refer to PS-19, "
POWER STEERING GEAR AND
LINKAGE" .
4. Remove side shaft.
5. Remove three way catalyst (right bank) with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
6. Remove front propeller shaft. Refer to PR-5, "
Removal and Installation" .
7. Separate EPS solenoid valve connector.
8. Separate power steering hydraulic line.
9. Remove stabilizer assembly with power tool. Refer to FSU-36, "
Removal and Installation" .
10. Separate steering lower joint and steering gear assembly. Refer to PS-19, "
POWER STEERING GEAR
AND LINKAGE" .
11. Set a suitable jack to engine.
12. Remove front suspension member with power tool. Refer to FSU-27, "
Removal and Installation" .
13. Remove breather hose and tube.
14. Remove engine mounting bracket (RH) (Lower) and engine mounting insulator (RH) with power tool.
Refer to EM-119, "
Removal and Installation (AWD Models)" .
1. Front final drive assembly 2. Side shaft 3. Bushing
4. Front propeller shaft 5. Breather hose 6. Breather tube
7. Breather connector 8. Engine mounting bracket (RH)
(Lower)9. Engine mounting insulator (RH)
Refer to GI-11, "
Components" , for the symbols in the figure.
PDIA0789J