2007 INFINITI M35 parking brake

PR-8
REAR PROPELLER SHAFT
Revision: 2007 April2007 M35/M45
VQ35DE AWD MODELS (3F80A-1VL107 TYPE)
Removal and InstallationNDS000EF
REMOVAL
1. Move the A/T select lever to N position and release the parking brake.
2. Remove the floor reinforcement.
3. Remove the center muffler with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
4.For VQ35DE 2WD models

Put matching marks on propeller shaft rebro joint with final
drive companion flange.
CAUTION:
For matching marks, use paint. Do not damage propeller
shaft rebro joint and companion flange.
For VK45DE 2WD models

Put matching marks on propeller shaft rubber coupling with
transmission companion flange and on rebro joint with final
drive companion flange.
CAUTION:
For matching marks, use paint. Do not damage rubber coupling, rebro joint and companion
flanges.
For VQ35DE AWD models

Put matching marks on propeller shaft flange yoke with transfer companion flange and on rebro joint
with final drive companion flange.
CAUTION:
For matching marks, use paint. Do not damage propeller shaft flange yoke, rebro joint and com-
panion flanges.
PDIA0966E
1. Propeller shaft (1st shaft) 2. Center flange 3. Center bearing mounting bracket
(Lower)
4. Floor reinforcement 5. Center bearing assembly 6. Propeller shaft (2nd shaft)
7. Clip 8. Center bearing mounting bracket
(Upper)9. Washer
10. Lock nut
A: Both side
B: For the tightening torque, refer to PR-12, "
ASSEMBLY" .
Refer to GI-11, "
Components" , for the symbols in the figure.
PDIA0470E

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

RAX-6
WHEEL HUB
Revision: 2007 April2007 M35/M45
5. Separate the wheel hub and bearing assembly from drive shaft
by lightly tapping the end with a hammer (suitable tool) and
wood block, and then remove hub lock nut.
CAUTION:

Do not place drive shaft joint at an extreme angle. Also be
careful not to overextend slide joint.

Do not allow drive shaft to hang down without support for
housing (or joint sub-assembly), shaft and other parts.
NOTE:
Use a puller (suitable tool), if the wheel hub and bearing assem-
bly and drive shaft cannot be separated even after performing
the above procedure.
6. Remove the wheel hub and bearing assembly mounting bolts.
7. Remove the wheel hub and bearing assembly.
Axle Housing
1. Refer to the procedure from 1 to 5 in “Wheel Hub and Bearing Assembly”. RAX-5, "REMOVAL" .
2. Remove parking brake shoe and parking brake cable from back plate. Refer to PB-6, "
PARKING BRAKE
SHOE" , Refer to PB-4, "PARKING BRAKE CONTROL" .
3. Remove coil spring. Refer to RSU-16, "
REAR LOWER LINK & COIL SPRING" .
4. Remove mounting bolt and nut in axle side of shock absorber with a power tool.
5. Remove axle side nuts and bolts on radius rod and front lower link with a power tool. Refer to RSU-14,
"RADIUS ROD" , RSU-15, "FRONT LOWER LINK" .
6. Remove cotter pin, then loosen suspension arm mounting nut of axle housing.
7. Remove suspension arm from axle housing so as not to damage ball joint boot using ball joint remover
(suitable tool), and then remove axle housing from the vehicle.
CAUTION:

Temporarily tighten nuts to prevent damage to threads and to prevent ball joint remover (suit-
able tool) from coming off.

Do not place drive shaft joint at an extreme angle. Also be careful not to overextend slide joint.

Do not allow drive shaft to hang down without support for counterpart such as joint sub-assem-
bly, and other parts.
8. Remove the wheel hub and bearing assembly from axle housing.
9. Remove anchor block mounting nuts, and then remove anchor block and back plate from axle housing.
INSPECTION AFTER REMOVAL
Wheel Hub and Bearing Assembly
Check the wheel hub and bearing assembly for wear, cracks, and damage. Replace if there are.
Axle Housing
Check axle housing for wear, cracks, and damage. Replace if there are.
Ball Joint Inspection
Check for boot breakage, axial looseness, and torque of suspension arm ball joint. Refer to RSU-12, "SUS-
PENSION ARM" .
INSTALLATION
Wheel Hub and Bearing Assembly

Installation is the reverse order of removal. For tightening torque refer to RAX-5, "COMPONENT" .
CAUTION:
Do not reuse non-reusable parts.
SDIA1821E

RSU-8
REAR SUSPENSION ASSEMBLY
Revision: 2007 April2007 M35/M45
Removal and InstallationNES000J9
REMOVAL
1. Remove tires with a power tool.
2. Remove brake caliper with a power tool. Hang it in a place where it will not interfere with work. Refer to
BR-28, "
REAR DISC BRAKE" .
CAUTION:
Do not depressing brake pedal while brake caliper is removed.
3. Put matching marks on both disc rotor and the wheel hub and
bearing assembly, then remove disc rotor.
4. Remove rear under cover.
5. Remove wheel sensor from rear final drive.
6. Remove harness from rear final drive and rear suspension
member.
7. Remove center muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
8. Remove rear propeller shaft. Refer to PR-6, "
REAR PROPEL-
LER SHAFT" .
9. Remove stabilizer bar. Refer to RSU-17, "
STABILIZER BAR" .
10. Remove parking brake cable mounting bolt and separate park-
ing brake cable from vehicle and rear suspension member. Refer to PB-4, "
PARKING BRAKE CONTROL"
.
11. Remove rear lower link and coil spring. Refer to RSU-16, "
REAR LOWER LINK & COIL SPRING" .
12. Remove mounting bolt on lower side of shock absorber. Refer to RSU-10, "
SHOCK ABSORBER" .
13. Set jack under rear final drive.
14. Remove member stay from vehicle.
15. Remove rear pin stay mounting bolts and nuts.
16. Gradually lowering jack, remove rear pin stay and rear suspension assembly.
INSTALLATION

Installation is the reverse order of the removal. For tightening torque, refer to RSU-7, "Components" .
CAUTION:
Do not reuse non-reusable parts.

Assemble disc rotor and wheel hub and bearing assembly by
aligning each matching mark as shown in the figure when install-
ing disc rotor.

Perform the final tightening of each of parts under unladen con-
ditions, which were removed when removing rear suspension
assembly. Check the wheel alignment. Refer to RSU-5, "
Wheel
Alignment Inspection" .

Adjust neutral position of steering angle sensor after checking
the wheel alignment. Refer to BRC-6, "
Adjustment of Steering
Angle Sensor Neutral Position" .

Check for the following after finishing work.
1. Washer 2. Mounting seal 3. Bushing (upper side)
4. Distance tube 5. Mounting bracket 6. Bushing (lower side)
7. Bound bumper cover 8. Bound bumper 9. Shock absorber
10. Axle assembly 11. Upper seat 12. Coil spring
13. Ball seat 14. Rubber seat 15. Cotter pin
16. Suspension arm 17. Connecting rod mounting bracket 18. Connecting rod
19. Mount stopper 20. Rear lower link 21. Front lower link
22. Radius rod 23. Stabilizer Bushing 24. Stabilizer Clamp
25. Stabilizer bar 26. Rear suspension member 27. Member stay
28. Stopper rubber 29. Cap 30. Rear pin stay
Refer to GI-11, "
Components" , for to the symbols in the figure.
SDIA2638E
SDIA2638E

REAR SUSPENSION ASSEMBLY
RSU-9
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RSU
Revision: 2007 April2007 M35/M45
–Parking brake operation (stroke): Refer to PB-3, "PEDAL STROKE" .
–Wheel sensor harness for proper connection: Refer to BRC-54, "WHEEL SENSOR" .

SEAT BELTS
SB-33
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SB
Revision: 2007 April2007 M35/M45
NOTE:
Apply the tape so that there is no looseness or wrinkling.
6. Remove the clip fixing the seat belt and check that the webbing returns smoothly.
6. Repeat steps above as necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the webbing from extending any further. All 3-point type seat belt retractors
except the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt
in a specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat
belt to fully wind back into the retractor.
Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check
Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from
extending further.
ALR Function Stationary Check
1. Pull out entire length of seat belt from retractor until a click is heard.
2. Retract the webbing partially. A clicking noise should be heard as the webbing retracts indicating that the
retractor is in the Automatic Locking Retractors (ALR) mode.
3. Grasp the seat belt and try to pull out the retractor. The webbing must lock and not extend any further. If
NG, replace the retractor assembly.
4. Allow the entire length of the webbing to retract to cancel the automatic locking mode.
ELR Function Moving Check
WARNING:
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on
wet or gravel roads or on public streets and highways. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock.
1. Fasten driver's seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop
and the driver and passenger must be prepared to brace themselves in the event the retractor does not
lock, apply brakes firmly and make a very hard stop.
During stop, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock, per-
form the retractor off-vehicle check.

AWD SYSTEM
TF-13
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Revision: 2007 April2007 M35/M45
COMPONENTS FUNCTION DESCRIPTION
CAN CommunicationNDS000DE
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
For details, refer to LAN-50, "
CAN System Specification Chart" .
Component parts Function
AWD control unit

Controls driving force distribution by signals from each sensor and switch from rear wheel driving
mode (0:100) to AWD mode (50:50).

2WD mode is available by fail-safe function if malfunction is detected in AWD system.
Wheel sensors Detects wheel speed.
AWD solenoid Controls electric controlled coupling by command current from AWD control unit.
Electric controlled coupling Transmits driving force to front final drive.
AWD warning lamp

Illuminates if malfunction is detected in electrical system of AWD system.

There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large.

There are 2 blinks in 1 second if load is still applied to driving parts.
ABS actuator and electric unit
(control unit)Transmits the following signals via CAN communication to AWD control unit.

Vehicle speed signal

Stop lamp switch signal (brake signal)
ECMTransmits the following signals via CAN communication to AWD control unit.

Accelerator pedal position signal

Engine speed signal
Unified meter and A/C amp. Transmits conditions of parking brake switch via CAN communication to AWD control unit.

TROUBLE DIAGNOSIS
TF-21
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Revision: 2007 April2007 M35/M45
*1 : The values are changed by throttle opening and engine speed.
*2 : Mode switch is not equipped, but displayed.
CONSULT-II Function (ALL MODE AWD/4WD)NDS000DM
FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
RR RH SENSOR [km/h] or [mph]Wheel speed (Rear wheel
right)Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition.Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
RR LH SENSOR [km/h] or [mph]Wheel speed (Rear wheel
left)Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition.Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
BATTERY VOLT [V]Power supply voltage for
AWD control unitIgnition switch: ON Battery voltage
THRTL POS SEN [%] Throttle opening conditionWhen depressing accelerator pedal
(Value rises gradually in response to
throttle position.)0 - 100%
ETS SOLENOID [A]Monitored value of current at
AWD solenoidEngine running

At idle speedApprox. 0.000A
Engine running

When depressing accelerator
pedalApprox. 0.000 - 0.500A*1
STOP LAMP SW [ON/OFF]Condition of brake pedal
operationBrake pedal: Depressed ON
Brake pedal: Released OFF
ENG SPEED SIG [RUN/STOP] Condition of engine runningEngine stopped
(Engine speed: Less than 400 rpm)STOP
Engine running
(Engine speed: 400 rpm or more)RUN
ETS ACTUATOR [ON/OFF]Operating condition of AWD
actuator relay (integrated in
AWD control unit)Engine stopped (Ignition
switch: ON)OFF
Engine running ON
4WD WARN LAMP [ON/OFF] AWD warning lamp conditionAWD warning lamp: ON ON
AWD warning lamp: OFF OFF
4WD MODE SW*
2 [AUTO]Input condition from mode
switchAlways AUTO
4WD MODE MON [AUTO] Control status of AWD Engine running AUTO
DIS-TIRE MONI [mm]Improper size tire installed
conditionVehicle running with normal size tire
installed0-4 mm
Vehicle running with improper size
tire installed (Front/rear tire size dif-
ference, wear condition)4-8 mm, 8- mm
P BRAKE SW [ON/OFF] Condition of parking brakeParking brake operated ON
Parking brake not operated OFF Monitor item [Unit] Content Condition Display value
Diagnostic test mode FunctionReference
page
Self-diagnostic results

Self-diagnostic results can be read and erased quickly.TF-22
Data monitor
Input/Output data in the AWD control unit can be read.TF-24