fsu INFINITI M35 2007 Factory Workshop Manual

IDX-8
ALPHABETICAL INDEX
Valve lifter ......................................................... EM-89
Valve seat(VK45DE) ....................................... EM-245
Valve seat(VQ35DE) ...................................... EM-111
Valve spring(VK45DE) .................................... EM-246
Valve spring(VQ35DE) ................................... EM-112
Variable induction air control system (VIAS) EC-1302,
EC-1429
Vehicle security (theft warning) system ........... BL-217
Vehicle speed sensor (VSS) ............. EC-468, EC-588,
EC-1175
VEHSEC - Wiring diagram ............................... BL-223
VENT/V - Wiring diagram EC-417, EC-424, EC-1125,
EC-1132
VIAS - Wiring diagram ................................... EC-1431
VIAS/V - Wiring diagram ................................ EC-1303
VIN registration .................................... EC-85, EC-787
VSS A/T - Wiring diagram ................................ AT-121
W
WARN - Wiring diagram ..................................... DI-42
Warning chime .................................................... DI-59
Warning lamps .................................................... DI-39
Washer, front ..................................................... WW-4
Water control valve(VK45DE) ........................... CO-55
Water pump(VK45DE) ...................................... CO-53
Water pump(VQ35DE) ...................................... CO-24
Water temperature gauge ..................................... DI-5
Wheel alignment (front) ...................... FSU-6, FSU-24
Wheel alignment (rear) ..................................... RSU-5
Wheel balance ........................................ WT-7, MA-33
Wheel bearing (rear) ......................................... RAX-5
Wheel hub (rear) ............................................... RAX-5
Wheel sensor (VDC) ....................................... BRC-54
WINDOW - Wiring diagram ............................... GW-21
Window, door ...................................... GW-61, GW-65
Window, rear ..................................................... GW-59
Windshield ........................................................ GW-11
WIPER - Wiring diagram .................................. WW-13
Wiper, front ........................................................ WW-4
Wiring Diagram (Cell code) list .......................... PG-95
Wiring diagrams .................................................. GI-16

MA-4
GENERAL MAINTENANCE
Revision: 2007 April2007 M35/M45
GENERAL MAINTENANCEPFP:00000
Explanation of General MaintenanceNLS0007A
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform
checks and inspections themselves or they can have their INFINITI dealers do them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
ItemReference page
TiresCheck the pressure with a gauge, including the spare, at least once a month
and always prior to a long distance trips. Adjust to the specified pressure if
necessary. Check carefully for damage, cuts or excessive wear.—
Wheel nutsWhen checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary.—
WindshieldClean the windshield on a regular basis. Check the windshield at least every
six months for cracks or other damage. Repair as necessary.—
Tire rotationTires should be rotated every 12,000 km (7,500 miles).MA-35
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel
balancing may be needed.MA-33,
FSU-6
(2WD),
FSU-24
(AWD)
Windshield wiper
bladesCheck for cracks or wear if they do not wipe properly. —
Doors and engine
hoodCheck that all doors and the engine hood operate smoothly as well as the
trunk lid. Also make sure that all latches lock securely. Lubricate if necessary.
Make sure that the secondary latch keeps the hood from opening when the pri-
mary latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently.MA-38
LampsMake sure that the headlamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head-
lamp aim. Clean the headlamps on a regular basis. —

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PR-3
C
E
F
G
H
I
J
K
L
MA
B
PR
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000E9
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference pageFront
PR-4—
—
—
—
PR-4PR-5
NVH in FFD and RFD section
NVH in FAX, RAX, FSU and RSU section
NVH in WT section
NVH in WT section
NVH in RAX section
NVH in BR section
NVH in PS section
RearPR-6PR-10—
PR-7—
PR-6PR-9
Possible cause and SUSPECTED PARTS
Uneven rotating torque
Center bearing improper installation
Excessive center bearing axial end play
Center bearing mounting (insulator) cracks, damage or deterioration
Excessive joint angle
Rotation imbalance
Excessive runout
DIFFERENTIAL
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
SymptomNoise××××××××××××××
Shake× × ××××××
Vibration××××××× ×× × ×

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PS-7
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Trouble Shooting ChartNGS000D4
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PS-8PS-8PS-24PS-24PS-24PS-8PS-10PS-10
EM-16
,EM-174PS-10—
PS-23PS-16PS-13PS-21
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 torque
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 SteeringNoise× × ××××× × × ×××××× ×
Shake×× ××××××
Vibration×××× ××××
Shimmy× × × ××× ×
Judder× × ××× ×

PS-10
STEERING WHEEL
Revision: 2007 April2007 M35/M45
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceNGS000D8
CHECKING CONDITION OF INSTALLATION

Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.

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

Check steering gear assembly mounting bolts and nut for looseness. Refer to PS-19, "COMPONENTS" .
CHECKING STEERING WHEEL PLAY

Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on
the outer circumference.

When the measurement value is outside the standard value, check backlash for each joint of steering col-
umn assembly and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL

Make sure that steering gear assembly, steering column assembly and steering wheel are installed in the
correct position.

Perform neutral position inspection after wheel alignment. Refer to FSU-6, "Wheel Alignment Inspection"
(2WD), FSU-24, "Wheel Alignment Inspection" (AWD).

Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.

Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80°C (122 to 176°F).]
4. Check steering wheel turning force when steering wheel has
been turned 540° from neutral position.
NOTE:
Multiply the distance (L) from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-30,
"CHECKING RELIEF OIL PRESSURE" .
a. Disconnect lower joint and steering knuckle from steering gear assembly. Refer to PS-13, "
COMPO-
NENTS" , FAX-5, "COMPONENT" .
b. Start and run engine at idle to make sure steering fluid has reached normal operating temperature.Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 – 35 mm (0 – 1.38 in)
Steering wheel turning force
: 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA1615E

PS-20
POWER STEERING GEAR AND LINKAGE
Revision: 2007 April2007 M35/M45
8. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-39, "HYDRAULIC
LINE" .
9. Remove power steering solenoid valve harness connector. Refer to PS-21, "
COMPONENTS" .
10. Remove rack stay (2WD) or front cross bar (AWD). Refer to FSU-8, "
Components" , FSU-26, "Compo-
nents" .
11. Remove mounting bolts and nuts of steering gear assembly, and then remove steering gear assembly
from vehicle.
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-19, "COMPONENTS" .

When installing lower joint to steering gear assembly, follow the procedure listed below.
–Set rack of steering gear in the neutral position.
NOTE:
To get the neutral position of rack, turn gear-sub assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.
–Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.
–Install slit part of lower joint (C) aligning with the projection (A) of
rear cover cap (1). Make sure that the slit part of lower joint (C)
is aligned with both the projection (A) of rear cover cap (1) and
the marking position (B) of gear housing assembly.

After installation, bleed air from the steering hydraulic system.
Refer to PS-8, "
Air Bleeding Hydraulic System" .

Perform final tightening of nuts and bolts on each part under
unladen conditions with tires on level ground when removing
steering gear assembly. Check wheel alignment. Refer to FSU-
6, "Wheel Alignment Inspection" , FSU-24, "Wheel Alignment
Inspection" .

Adjust neutral position of steering angle sensor after checking wheel alignment. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .
INSPECTION AFTER INSTALLATION
Make sure that steering wheel operates smoothly by turning several times from full left stop to full right stop.
SGIA1175E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
RFD-7
C
E
F
G
H
I
J
K
L
MA
B
RFD
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000F1
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference 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×××××××××××××

TROUBLE DIAGNOSIS
STC-9
[EPS]
C
D
E
F
H
I
J
K
L
MA
B
STC
Revision: 2007 April2007 M35/M45
For Fast and Accurate Trouble DiagnosisNGS000E1
Check the following items with the vehicle stopped

Is air pressure and size of tires proper?

Is the specified part used for the steering wheel?

Is control unit a genuine part?

Are there any fluid leakage from steering gear assembly, power steering oil pump, and hydraulic pipes,
etc? Refer to PS-8, "
Checking Fluid Leakage" .

Is the fluid level proper? Refer to PS-8, "Checking Fluid Level" .

Is the wheel alignment adjusted properly? Refer to FSU-6, "Wheel Alignment Inspection" (2WD), FSU-24,
"Wheel Alignment Inspection" (AWD).

Are there any damage or modification to suspension or body resulting in increased weight or altered
ground clearance?

Check each link installation condition of suspension and axle.

Check each connector connection condition.
Check the following items while driving the vehicle

Check conditions when the malfunction occurred (5W 1H).

Is the engine condition normal?
Basic InspectionNGS000E2
POWER SUPPLY CIRCUIT TERMINAL LOOSENESS AND BATTERY
Check battery terminals for looseness on both positive and negative ones and ground connection. Also make
sure that battery voltage does not drop.
Inspection: Power Steering Control Unit Power Supply Circuit and GroundNGS000E3
1. CHECK POWER STEERING CONTROL UNIT CONNECTOR
Turn ignition switch OFF, disconnect power steering control unit harness connector, and check terminal for
deformation, disconnection, looseness, etc.
OK or NG
OK >> GO TO 2.
NG >> Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the termi-
nal.
2. CHECK POWER STEERING CONTROL UNIT GROUND CIRCUIT
Disconnect power steering control unit harness connector M8, and
then check continuity between power steering control unit harness
connector M8 and ground.
OK or NG
OK >> GO TO 3.
NG >> Ground circuit open or shorted. Repair or replace any
inoperative parts. Terminal 2 – Ground : Continuity exist.
SGIA1231E

STC-32
[RAS]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
For Fast and Accurate Trouble DiagnosisNGS000EN
Check the following items with the vehicle stopped

Is air pressure and size of tires proper?

Is the specified part used for the steering wheel?

Is control unit a genuine part?

Are there any fluid leakage from steering gear assembly, power steering oil pump, and hydraulic pipes,
etc? Refer to PS-8, "
Checking Fluid Leakage" .

Is the fluid level proper? Refer to PS-8, "Checking Fluid Level" .

Is the wheel alignment is adjusted properly? Refer to FSU-6, "Wheel Alignment Inspection" (2WD), FSU-
24, "Wheel Alignment Inspection" (AWD).

Are there any damage or modification to suspension or body resulting in increased weight or altered
ground clearance?

Check each link installation condition of suspension and axle.

Is the battery voltage proper?

Check each connector connection condition.
Check the following items while driving the vehicle

Conditions when the error occurred (5W 1H).

Is the engine is normal?
Basic InspectionNGS000EO
BASIC INSPECTION 1: POWER SUPPLY CIRCUIT TERMINAL LOOSENESS AND BATTERY
Check battery terminals for looseness on both positive and negative ones and ground connection. Also make
sure that battery voltage does not drop.
BASIC INSPECTION 2: RAS WARNING LAMP INSPECTION
1. Make sure RAS warning lamp turns on when ignition switch is turned ON.

If it does not turn on, refer to STC-33, "Trouble Diagnosis Chart" .
2. Make sure that RAS warning lamp turns off when the engine is started after ignition switch is turned ON. If
it does not turn off, perform self-diagnosis. Refer to STC-28, "
SELF-DIAG RESULT MODE" .
3. Always erase DTC memory after completing self-diagnosis. Refer to STC-29, "
How to Erase Self-Diag-
nostic Results" .
BASIC INSPECTION 3: RAS CONTROL UNIT POWER SUPPLY CIRCUIT AND GROUND CIR-
CUIT INSPECTION
1. CHECK RAS CONTROL UNIT CONNECTOR
Turn ignition switch OFF, disconnect RAS control unit harness connector, and check terminal for deformation,
disconnection, looseness, etc.
OK or NG
OK >> GO TO 2.
NG >> Poor connection of connector terminal. Repair or replace the terminal.
2. CHECK RAS CONTROL UNIT GROUND CIRCUIT
1. Disconnect RAS control unit harness connector B476, and then
check continuity between RAS control unit harness connector
B476 and ground.
OK or NG
OK >> GO TO 3.
NG >> Ground circuit open or shorted. Repair or replace any
inoperative parts. Terminal 34 – Ground : Continuity should exit.
SGIA1244E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
WT-5
C
D
F
G
H
I
J
K
L
MA
B
WT
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000JN
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
FAX-5
, RAX-5WT-6WT-7WT-41WT-8—
—
WT-41
NVH in PR section.
NVH in FFD and RFD section.
NVH in FAX and FSU sections.
NVH in RAX and RSU sections.
Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart.
NVH in FAX, RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Out-of-round
Unbalance
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 WHEELS
DRIVE SHAFT
BRAKE
STEERING
SymptomTIRESNoise××××××× ×××× ××××
Shake×××××× ×× ×× ××××
Vibration×××××××
Shimmy×××××××× ×× × ××
Judder×××××× × ×× × ××
Poor quality ride or
handling×××××× × × ××
ROAD
WHEELNoise××× × ××××× ×××
Shake××× × × ××× ×××
Shimmy, Judder××× × ××× ××
Poor quality ride or
handling××× × ×××