tire size INFINITI FX35 2008 User Guide

TROUBLE DIAGNOSISTF-21
< SERVICE INFORMATION >
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*: The values are changed by throttle opening and engine speed.
CONSULT-III Function (ALL MODE AWD/4WD)INFOID:0000000001327442
FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
FR LH SENSOR [km/h] or [mph] Wheel speed (Front 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%)
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 condition When 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 speed
Approx. 0.000A
Engine running
 When depressing accelerator ped- al Approx. 0.000 - 2.400A*
STOP LAMP SW [ON/OFF] Condition of brake pedal oper-
ationBrake pedal: Depressed ON
Brake pedal: Released OFF
ENG SPEED SIG [RUN/STOP] Condi tion 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 MON [AUTO] Control status of AWD Engine running AUTO
DIS-TIRE MONI [mm] Improper size tire installed
conditionVehicle running with normal size tire
installed
0-4 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 brake Parking brake operated ON
Parking brake not operated OFF
Monitored item [Unit] Content Condition Display value
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TROUBLE DIAGNOSISTF-23
< SERVICE INFORMATION >
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× : Standard : Not applicable
ACTIVE TEST MODE
Description
Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data
monitor. AWD control unit gives drive signal to actuat or with receiving command from CONSULT-III to check
operation of actuator.
Test Item
CAUTION:
Do not continuously energize for a long time.
Monitored item (Unit) Monitor Menu
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS
FR RH SENSOR [km/h] or [mph] ××Wheel speed calculated by front wheel sensor
RH signal is displayed.
FR LH SENSOR [km/h] or [mph] ××Wheel speed calculated by front wheel sensor LH
signal is displayed.
RR RH SENSOR [km/h] or [mph] ××Wheel speed calculated by rear wheel sensor RH
signal is displayed.
RR LH SENSOR [km/h] or [mph] ××Wheel speed calculated by rear wheel sensor LH
signal is displayed.
BATTERY VOLT [V] Power supply voltage for AWD control unit
THRTL POS SEN [%] Throttle opening status is displayed.
ETS SOLENOID [A] Monitored value of current at AWD solenoid
STOP LAMP SW [ON/OFF] Stop lamp switch signal status via CAN commu-
nication line is displayed.
ENG SPEED SIG [RUN/STOP] Eng ine status is displayed.
ETS ACTUATOR [ON/OFF] Operating condition of AWD actuator relay (inte-
grated in AWD control unit) is displayed.
4WD WARN LAMP [ON/OFF] Control status of AWD warning lamp is displayed.
4WD MODE SW [AUTO] AWD lock switch is not equipped, but displayed.
4WD MODE MON [AUTO] Control status of AWD is displayed.
DIS-TIRE MONI [mm] Improper size tire installed condition is displayed.
P BRAKE SW [ON/OFF] Parking switch signal status via CAN communi-
cation line is displayed.
Test item Condition Description
ETS S/V
(Detects AWD solenoid valve)  Vehicle stopped
 Engine running
 No DTC detected Change command current value to AWD solenoid, and then change driving
mode. (Monitor value is normal if it is within approximately ±10% of com-
mand value.)
Qu: Increase current value in increments of 0.20A
Qd: Decrease current value in increments of 0.20A
UP: Increase current value in increments of 0.02A
DOWN: Decrease current value in increments of 0.02A
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TF-34
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1.CHECK TIRE
Check the following.
 Tire pressure
 Wear condition
 Longitudinal tire size (There is no difference between longitudinal tires.)
OK or NG
OK >> GO TO 2.
NG >> Drive at vehicle speed of 20 km/h (12 MPH) or more for 5 seconds or more after repairing or replacing damaged parts. (Initialize improper size tire information.)
2.CHECK INPUT SIGNAL OF TIRE DIAMETER
With CONSULT-III
1. Start engine.
2. Drive at 20 km/h (12 MPH) or more for approx. 200 seconds.
3. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
4. Check monitor “DIS-TIRE MONI”.
Display of
“DIS-TIRE MONI”
“0-4mm”>> INSPECTION END
Except for “0-4mm”>>GO TO 3.
3.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 4.
NG >> Check AWD control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4.SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> Replace AWD control unit.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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WT-6
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327572
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: Applicable
Reference
FAX-4
,
FAX-11
, FSU-5
WT-7WT-8WT-35WT-9—
—
WT-35
NVH in PR section
NVH in RFD section
NVH in FAX and FSU section
NVH in RAX and RSU section Refer to TIRE in this chart.
Refer to ROAD WHEEL in this chart. NVH in FAX, RAX sectionNVH in BR section
NVH in PS section
Possible cause an d 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
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
SymptomTIRE Noise
× ×××××× ×××× ××××
Shake ××××××××××××××
Vibration ×××××××
Shimmy × ××××××× ×× × ××
Judder ××××××× ×××××
Poor quality ride
or handling × ××××× × ×× ×
ROAD WHEEL Noise
× ×× × ××××× ×××
Shake × ×× × × ××× ×××
Shimmy, Judder ×××× ×××××
Poor quality ride
or handling ××× × ×××
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SERVICE DATA AND SPECIFICATIONS (SDS)
WT-35
< SERVICE INFORMATION >
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SERVICE DATA AND SPECIFICATIONS (SDS)
Road WheelINFOID:0000000001327600
TireINFOID:0000000001327601
Unit: kPa (kg/cm2, psi)
Kind of wheel Aluminum Steel (for emergency use)
Maximum radial runout limit Lateral deflection Less than 0.3 mm (0.012 in) Less than 1.5 mm (0.059 in)
Vertical deflection Less than 0.3 mm (0.012 in) Less than 1.5 mm (0.059 in)
Maximum allowable unbalance Dynamic (At rim flange) Less than 5.0 g (0.2 oz) (one side) —
Static (At rim flange) Less than 20 g (0.7 oz) —
Tire size Air pressure
Front Rear
P265/60R18 109V 220 (2.2, 32) 220 (2.2, 32)
P265/50R20 106V 220 (2.2, 32) 220 (2.2, 32)
T175/90D18 110M 420 (4.2, 60) 420 (4.2, 60)
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