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WT-4
ROAD WHEEL
Revision: 2005 July 2005 FX
ROAD WHEELPFP:40300
InspectionAES000OP
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 wheel 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-37, "
SERVICE DATA"
SFA975B
Radial runout = (A + B)/2
Lateral runout = (C + D)/2
Wheel runout : Refer to WT-37, "
SERVICE DATA"SFA981B
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ROAD WHEEL TIRE ASSEMBLY WT-5
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Revision: 2005 July 2005 FX
ROAD WHEEL TIRE ASSEMBLYPFP:40300
Balancing Wheels (Bonding Weight Type)AES000JM
REMOVAL
1. Remove inner and outer balance weights from the road wheel.
CAUTION:
Be careful not to scratch the road wheel during removal.
2. 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 wheel balancer indicator, multiply outer unbal- ance 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 unbalance value × 5/3 = balance weight to be installed
Calculation example:
23 g (0.81 oz) × 5/3 = 38.33 g (1.35 oz) = 40 g (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.
Example:
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.
SMA054D
SEIA0271E
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WT-6
ROAD WHEEL TIRE ASSEMBLY
Revision: 2005 July 2005 FX
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 unbalance values are 5.0 g (0.2 oz) each or below.
If either residual unbalance value exceeds 5.0 g (0.2 oz), repeat installation procedures.
Wheel balance (Maximum allowable unbalance):
Tire RotationAES000ON
After rotating the tires, adjust the tire pressure.
Retighten the wheel nuts when the vehicle has been driven for
1,000 km (600 miles) (also in cases of a flat tire, etc.).
CAUTION:
Do not include the T-type spare tire when rotating the tires.
When installing wheels, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
Maximum allowable
unbalance Dynamic (At rim flange) 5.0 g (0.2 oz) (one side)
Static (At rim flange) 20 g (0.7 oz)
SMA056D
Tightening torque of wheel nut : 112.5 N·m (11 kg, 83 ft-lb)
SMA829C
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LOW TIRE PRESSURE WARNING SYSTEM WT-7
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Revision: 2005 July 2005 FX
LOW TIRE PRESSURE WARNING SYSTEMPFP:40300
System ComponentsAES000YZ
System DescriptionAES000Z0
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.
REMOTE KEYLESS ENTRY RECEIVER
The remote keyless entry receiver receives the air pressure signal
transmitted by the transmitter in each wheel.
SEIA0599E
SEIA0203E
SEIA0431E
Page 4701 of 4731
WT-8
LOW TIRE PRESSURE WARNING SYSTEM
Revision: 2005 July 2005 FX
BCM (BODY CONTROL MODULE)
The BCM reads the air pressure signal received by the remote key-
less entry receiver, and controls the low tire pressure warning lamp
and the buzzer operations as shown below. 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 BCM
using CAN communication. When a low tire pressure condition is
sensed by the BCM, the combination meter low tire pressure warn-
ing lamp and buzzer are activated.
DISPLAY UNIT
Displays the air pressure of each tire.
After the ignition switch is turned ON, the pressure values are
not displayed until the data of each wheel stabilizes.
Condition Warning lamp Buzzer
Less than 178 kPa (1.78 kg/cm
2 , 26 psi)
[Flat tire] ON Sounds for 10 sec.
System malfunction ON OFF
SEIA0591E
SEIA0434E
SKIA5994E
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CAN COMMUNICATION WT-9
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Revision: 2005 July 2005 FX
CAN COMMUNICATIONPFP:23710
System DescriptionAES000Z1
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-30, "
CAN COMMUNICATION" .
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WT-10
TROUBLE DIAGNOSES
Revision: 2005 July 2005 FX
TROUBLE DIAGNOSESPFP:00004
SchematicAES000Z2
TEWM0101E
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TROUBLE DIAGNOSES WT-11
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Revision: 2005 July 2005 FX
Wiring DiagramAES000Z3
TEWM0102E