INFINITI M35 2006 Factory Service Manual

WT-6
ROAD WHEEL
Revision: 2006 January2006 M35/M45
ROAD WHEELPFP:40300
InspectionNES000JO
ALUMINUM WHEEL
1. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage. If deformed, remove wheel and check wheel
runout.
a. Remove tire from aluminum wheel and mount on a tire balance machine.
b. Set dial indicator as shown in the figure.
STEEL WHEEL
1. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage. If deformed, remove wheel and check wheel
runout.
a. Remove tire from steel wheel and mount on a tire balance machine.
b. Set two dial indicators as shown in the figure.
c. Set each dial indicator to 0.
d. Rotate wheel and check dial indicators at several points around
the circumference of the wheel.
e. Calculate runout at each point as shown below.
f. Select maximum positive runout value and the maximum nega-
tive value.
Add the two values to determine total runout.
In case a positive or negative value is not available, use the
maximum value (negative or positive) for total runout.
If the total runout value exceeds the limit, replace steel wheel. Wheel runout (Dial indicator value):
Refer to WT-41, "
SERVICE DATA
AND SPECIFICATIONS (SDS)" .
SFA975B
Radial runout = (A+B)/2
Lateral runout = (C+D)/2
Wheel runout : Refer to WT-41, "
SERVICE DATA AND
SPECIFICATIONS (SDS)" .
SEIA0558E

ROAD WHEEL TIRE ASSEMBLY
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Revision: 2006 January2006 M35/M45
ROAD WHEEL TIRE ASSEMBLYPFP:40300
Balancing Wheels (Bonding Weight Type)NES000JP
REMOVAL
1. Using releasing agent, remove double-faced adhesive tape from the road wheel.
CAUTION:
Be careful not to scratch the road wheel during removal.
After removing double-faced adhesive tape, wipe clean traces of releasing agent from the road
wheel.
WHEEL BALANCE ADJUSTMENT
If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting, select
and adjust a drive-in weight mode suitable for road wheels.
1. Set road wheel on wheel balancer using the center hole as a guide. Start the tire balance machine.
2. When inner and outer unbalance values are shown on the tire balance machine indicator, multiply outer
unbalance value by 5/3 to determine balance weight that should be used. Select the outer balance weight
with a value closest to the calculated value above and install it to the designated outer position of, or at the
designated angle in relation to the road wheel.
CAUTION:
Do not install the inner balance weight before installing the outer balance weight.
Before installing the balance weight, be sure to clean the mating surface of the road wheel.
Indicated imbalance value
5/3 = balance weight to be installed.
23 g (0.81 oz)
5/3 = 38.33 g (1.35 oz) = 40g (1.41 oz) balance
weight (closer to calculated balance weight value)
Note that balance weight value must be closer to the calculated
balance weight value.
37.4 = 35 g (1.23 oz)
37.5 = 40 g (1.41 oz)
a. Install balance weight in the position shown in the figure.
b. When installing balance weight to road wheels, set it into the
grooved area on the inner wall of the road wheel as shown in the
figure so that the balance weight center is aligned with the wheel
balancer indication position (angle).
CAUTION:
Always use genuine NISSAN adhesion balance weights.
Balance weights are unreusable; always replace with new
ones.
Do not install more than three sheets of balance weight.
c. If calculated balance weight value exceeds 50 g (1.76 oz), install
two balance weight sheets in line with each other as shown in
the figure.
CAUTION:
Do not install one balance weight sheet on top of another.
3. Start wheel balancer again.
4. Install drive-in balance weight on inner side of road wheel in the
wheel balancer indication position (angle).
CAUTION:
Do not install more than two balance weights.
5. Start wheel balancer. Make sure that inner and outer residual
imbalance value are 7 g (0.25 oz) each or below.
SMA054D
SEIA0031E

WT-8
ROAD WHEEL TIRE ASSEMBLY
Revision: 2006 January2006 M35/M45
If either residual imbalance value exceeds 7 g (0.25 oz), repeat installation procedures.
RotationNES000JQ
Follow the maintenance schedule for tire rotation service intervals. Refer to MA-7, "PERIODIC MAINTE-
NANCE" .
Do not include the T-type spare tire when rotating the tires.
CAUTION:
When installing wheels, tighten them diagonally by divid-
ing the work two to three times in order to prevent the
wheels from developing any distortion.
Be careful not to tighten wheel nut at torque exceeding
the criteria for preventing strain of disc rotor.
Maximum allowable unbalanceDynamic (At rim flange) Less than 7 g (0.25 oz) (one side)
Static (At flange) Less than 14 g (0.49 oz)
Tightening torque
of wheel nut: 108 Nꞏm (11 kg-m, 80 ft-lb)
SMA829C

LOW TIRE PRESSURE WARNING SYSTEM
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Revision: 2006 January2006 M35/M45
LOW TIRE PRESSURE WARNING SYSTEMPFP:40300
System ComponentsNES000JR
System DescriptionNES000JS
TRANSMITTER
A sensor-transmitter integrated with a valve is installed on a wheel,
and transmits a detected air pressure signal in the form of a radio
wave.
1. Tire pressure transmitter front LH 2. Tire pressure transmitter front RH 3. Tire pressure receiver front LH
4. Tire pressure receiver front RH 5. Low tire pressure warning control
unit6. Low tire pressure warning lamp
7. Display unit 8. Tire pressure transmitter rear LH 9. Tire pressure transmitter rear RH
10. Tire pressure receiver rear LH 11. Tire pressure receiver rear RH
SEIA0648E
SEIA0521E

WT-10
LOW TIRE PRESSURE WARNING SYSTEM
Revision: 2006 January2006 M35/M45
RECEIVER
The receiver receives the air pressure signal transmitted by the transmitter in each wheel.
LOW TIRE PRESSURE WARNING CONTROL UNIT
The low tire pressure warning control unit (1) reads the air pressure
signal received by the receiver, and controls the low tire pressure
warning lamp and the buzzer operations. It also has a judgement
function to detect a system malfunction.
LOW TIRE PRESSURE WARNING LAMP
The combination meter receives tire pressure status from the low tire
pressure warning control unit using CAN communication. When a
low tire pressure condition is sensed by the low tire pressure control
unit, the combination meter low tire pressure warning lamp and
buzzer are activated.
Low Tire Pressure Warning Lamp Indication
*: Standard air pressure is for 230 kpa (2.3 kg/cm2 , 33 psi) vehicle. 1. Tire pressure receiver front 2. Tire pressure receiver rear A. Front wheel house
B. Rear wheel house
Refer to GI-11, "
Components" , for the symbols in the figure.
SEIA0649E
SEIA0650E
SEIA0434E
ConditionLow tire pressure warning
lampBuzzer
Less than 186 kPa
(1.86 kg/cm
2 , 27 psi) [Flat tire]*ON Sounds for 10 sec.
Low tire pressure warning system malfunction [Other diagnostic item]Warning lamp flashes 1 min,
then turns ONOFF

LOW TIRE PRESSURE WARNING SYSTEM
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Revision: 2006 January2006 M35/M45
DISPLAY UNIT
Display the air pressure of each tire.
After the ignition switch is turned ON, the pressure values are
not be displayed until the data of all four wheels stabilizes.
SEIA0651E

WT-12
CAN COMMUNICATION
Revision: 2006 January2006 M35/M45
CAN COMMUNICATIONPFP:23710
System DescriptionNES000JT
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.
Refer to LAN-34, "
CAN COMMUNICATION" .

TROUBLE DIAGNOSES
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Revision: 2006 January2006 M35/M45
TROUBLE DIAGNOSESPFP:00004
How to Perform Trouble DiagnosesNES000JU
BASIC CONCEPT
The most important point to perform trouble diagnosis is to understand systems (control and mechanism)
in vehicle thoroughly.
It is also important to clarify customer complaints before inspec-
tion.
First of all, reproduce symptom, and understand it fully.
Ask customer about his/her complaints carefully. In some cases,
they will be necessary to check symptom by driving vehicle with
customer.
CAUTION:
Customers are not professionals. Do not assume “maybe
customer means...” or “maybe the customer mentioned this
symptom”.
It is essential to check symptoms right from beginning in order to
repair a malfunction completely.
For an intermittent malfunction, it is important to reproduce
symptom based on interview with customer and past examples.
Do not perform inspection on ad hoc basis. Most intermittent
malfunctions are caused by poor contacts. In this case, it will be
effective to shake suspected harness or connector by hand.
When repairs are performed without any symptom check, no
one can judge if malfunction has actually been eliminated.
Always diagnosis, make sure to perform “ERASE MEMORY”.
Always read “GI General information” to confirm general precau-
tions. Refer to GI-4, "
General Precautions" .
EFJ0028D
SEF233G

WT-14
TROUBLE DIAGNOSES
Revision: 2006 January2006 M35/M45
SchematicNES000JV
TEWT0026E

TROUBLE DIAGNOSES
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Revision: 2006 January2006 M35/M45
Wiring Diagram — T/WARN —NES000JW
TEWT0027E