tires INFINITI FX35 2008 Repair Manual

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SUSPENSION
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SECTION WT
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O PCONTENTS
ROAD WHEELS & TIRES
SERVICE INFORMATION .. ..........................2
INDEX FOR DTC ............................................ .....2
DTC No. Index .................................................... ......2
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution .................................................................3
Service Notice or Precaution .....................................4
PREPARATION ...................................................5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
6
NVH Troubleshooting Chart ................................ ......6
ROAD WHEEL ....................................................7
Inspection ............................................................ ......7
ROAD WHEEL TIRE ASSEMBLY ......................8
Balancing Wheels (Bonding Weight Type) .......... ......8
Tire Rotation ..............................................................9
TIRE PRESSURE MONITORING SYSTEM .......10
System Component ............................................. ....10
System Description .................................................10
CAN COMMUNICATION ....................................13
System Description ............................................. ....13
TROUBLE DIAGNOSES ....................................14
Schematic ........................................................... ....14
Wiring Diagram- T/WARN - .....................................15
Control Unit Input/Output Signal Standard ..............17
ID Registration Procedure ................................... ....19
Transmitter Wake Up Operation ..............................20
Self-Diagnosis .........................................................20
CONSULT-III Function (BCM) .................................22
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
24
Preliminary Check ...................................................25
Malfunction Code/Symptom Chart ...........................26
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS .................................................
28
Transmitter or Control Unit (BCM) ...........................28
Transmitter - 1 .........................................................28
Transmitter - 2 .........................................................29
Vehicle Speed Signal ..............................................29
TROUBLE DIAGNOSIS FOR SYMPTOMS ......30
Low Tire Pressure Warning Lamp Does Not Come
On When Ignition Switch Is Turned On ...................
30
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On ............................... ....
30
Low Tire Pressure Warning Lamp Blinks When Ig-
nition Switch Is Turned On ......................................
31
Run-Flat Tire Warning Lamp Stays On When Igni-
tion Switch Is Turned On .........................................
32
Turn Signal Lamp Blinks When Ignition Switch Is
Turned On ...............................................................
32
ID Registration Cannot Be Completed ....................32
REMOVAL AND INSTALLATION .....................33
Transmitter ..............................................................33
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
35
Road Wheel .............................................................35
Tire ..........................................................................35
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ROAD WHEELWT-7
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ROAD WHEEL
InspectionINFOID:0000000001327573
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 illustration.
c. If the total runout value exceeds the limit, replace aluminum wheel.
STEEL WHEEL (FOR EMERGENCY USE)
1. Check tires for wear and improper inflation.
2. Check wheels for deformation, cracks and other damage. If deformed, remove wheel and check wheelrunout.
a. Remove tire from steel wheel and mount wheel on a tire balance machine.
b. Set two dial indicators as shown in the illustration.
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.
CAUTION:
In case a positive or negative val ue is not available, use the
maximum value (negative or positive) for total runout.
g. If the total runout value exceeds the limit, replace steel wheel.
Lateral runout limit (A) : 0.3 mm (0.012 in)
Radial runout limit (B) : 0.3 mm (0.012 in)
SEIA0737E
Lateral runout limit (A)
: ( + )/2
Vertical runout limit (B) : ( + )/2
Lateral runout limit (A) : 1.5 mm (0.059 in)
Vertical runout limit (B) : 1.5 mm (0.059 in)
SEIA0738E
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ROAD WHEEL TIRE ASSEMBLYWT-9
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d. 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 weig ht sheet on top of another.
3. Start tire balance machine again.
4. Install drive-in balance weight on inner side of road wheel in the tire balance machine indication position (angle).
CAUTION:
Do not install more than two balance weights.
5. Start tire balance machine. Make sure that inner and outer resid- ual unbalance values are 5 g (0.2 oz) each or below.
6. If either residual unbalance value exceeds 5 g (0.2 oz), repeat installation procedures.
Tire RotationINFOID:0000000001327575
1. Follow the maintenance schedule for tire rotation service intervals. Refer to MA-5, "Introduction of Peri-
odic Maintenance".
2. Do not include the spare tire when rotating the tires.
3. When installing the wheel, tighten wheel nuts to the specified torque.
CAUTION:
 When installing wheels, tighten th em diagonally by dividing 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.
4. Perform the ID registration, after tire rotation. Refer to WT-19, "
ID Registration Procedure".
Wheel balance Dynamic (At rim flange) Static (At rim flange)
Maximum allowable un-
balance 5 g (0.2 oz) (one side) 20 g (0.7 oz)
SMA056D
Wheel nuts : 108 N·m (11 kg-m, 80 ft-lb)
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WT-20
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TROUBLE DIAGNOSES
4. Inflate all tires to proper pressure. Refer to WT-35, "Tire".
Transmitter Wake Up OperationINFOID:0000000001327583
W I T H A C T I VAT I O N T O O L
1. With the transmitter activation tool (J-45295) pushed against the
front-left transmitter, press the button for 5 seconds.
 When ignition switch ON, as the low tire pressure warninglamp blinks per the following diagram, the respective transmit-
ter then must be woken up.
2. Register the ID of wheel that low tire pressure warning lamp flashes. When wake up of registered wheel
has been completed, turn signal lamp flashes two times.
3. After completing wake up all transmitters, make sure low tire pressure warning lamp goes out.
Self-DiagnosisINFOID:0000000001327584
DESCRIPTION
During driving, the low tire pressure warning syste m receives the signal transmitted from the transmitter
installed in each wheel, and gives alarms when the tire pressure becomes low. The control unit (BCM) of this
system has pressure judgment and trouble diagnosis functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or another unusual symptom, the
warning lamps in the combination meter comes on. To start the self-diagnostic results mode, ground terminal
of the tire pressure warning check connector. The malf unction location is indicated by the warning lamp flash-
ing and the buzzer sounds.
LOW TIRE PRESSURE WARNING LAMP DIAGNOSTIC CHART
Activation tire position CONSULT-III
Front LH “Red”↓
“Green”
Front RH
Rear RHRear LH
SEIA0460E
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
WT-29
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YES >> GO TO 3.
NO >> Go to the inspection 1. Refer to WT-28, "
Transmitter or Control Unit (BCM)".
3.VEHICLE DRIVING
 Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for 10
minutes. Then check all tire pressures with CO NSULT-III “DATA MONITOR ITEM” within 5 minutes.
Does
“DATA MONITOR ITEM” displayed tire pressure as normal without any warning lamp?
YES >> INSPECTION END.
NO >> Replace malfunctioning transmitter, and perform “Step 3” again.
Transmitter - 2INFOID:0000000001327591
MALFUNCTION CODE NO. 35, 36, 37 OR 38
1.CHECK ALL TIRE PRESSURES
 Check all tire pressures. Refer to WT-35, "
Tire".
Are there any tires whose pressure is
“64 psi” or more?
YES >> Adjust tire pressure to specified value.
NO >> GO TO 2.
2.VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
Check all tire pressures with CONSULT-III “DATA MO NITOR ITEM” within 15 minutes after vehicle speed
become 17 km/h (11 MPH).
>> Replace transmitter with new one if “DATA MO NITOR ITEM” displayed 64 psi or more. Then GO
TO 3.
3.ID REGISTRATION AND VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes. Then check all tire pressures with CONS ULT-III “DATA MONITOR ITEM” within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> Go to the inspection applicable to DTC.
Vehicle Speed SignalINFOID:0000000001327592
MALFUNCTION CODE NO. 52
1.CHECK SELF-DIAGNOSIS RESULTS
1. Select “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display contents in self-diagnostic results.
Is
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Malfunction in CAN communication system. Go to LAN-43, "CAN System Specification Chart".
NO >> No malfunction. Check combination meter refer to DI-5, "
System Description".
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WT-32
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TROUBLE DIAGNOSIS FOR SYMPTOMS
 Check continuity between BCM harness connector M3 andground.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installa-
tion of BCM".
NG >> Repair or replace harness connector.
Run-Flat Tire Warning Lamp Stays On When Ignition Switch Is Turned OnINFOID:0000000001327596
DIAGNOSTIC PROCEDURE
1.CHECK ALL TIRE PRESSURES
 Check all tire pressures. Refer to WT-35, "
Tire".
OK or NG
OK >> Check combination meter. Refer to DI-5.
NG >> Adjust tire pressure to specified value or change the tires.
Turn Signal Lamp Blinks When Ignition Switch Is Turned OnINFOID:0000000001327597
DIAGNOSTIC PROCEDURE
1.CHECK TIRE PRESSURE WARNI NG CHECK SWITCH CIRCUIT
 Check continuity between BCM harness connector M3 and ground.
OK or NG
OK >> Check turn signal lamp operation. Refer to LT-78, "Sys-
tem Description".
NG >> Repair or replace harness connector.
ID Registration Ca nnot Be CompletedINFOID:0000000001327598
DIAGNOSTIC PROCEDURE
1.ID REGISTRATION (ALL)
 Perform ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> INSPECTION END
NO >> Go to WT-28
.
Te r m i n a l
Continuity
(+) (–)
15 Ground No
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Te r m i n a l Continuity
(+) (–)
15 Ground No
SEIA0438E
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