tire type INFINITI QX4 2005 Factory Service Manual

2005
QUICK REFERENCE CHART: QX56

Drive Belt Deflection and Tension
Spark Plugs (Double Platinum Tipped)
Front Wheel Alignment (Unladen*1 )*6ELS001U5
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 37° 31′ (37.52°)
*3: Target value 33° 59′ (33.98°)
*4: Target value 37° 44′ (37.73°)
*5: Target value 33° 29′ (33.48°)
*6: Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers.Tension of drive belts Auto adjustment by auto tensioner
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (nominal)1.1 mm (0.043 in)
Drive type4x2 4x4
Camber
Degree minute (decimal degree)Minimum -0° 51′ (-0.85°)-0° 33′ (-0.55°)
Nominal -0° 6′ (-0.10°)0° 12′ (0.20°)
Maximum 0° 39′ (0.65°)0° 57′ (0.95°)
Cross camber 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Caster
Degree minute (decimal degree)Minimum 3° 15′ (3.25°)2° 45′ (2.75°)
Nominal 4° 0′ (4.00°)3° 30′ (3.50°)
Maximum 4° 45′ (4.75°)4° 15′ (4.25°)
Cross caster 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Kingpin inclination
Degree minute (decimal degree)13° 32′ (13.53°)13° 13′ (13.22°)
Total toe-inDistance (A − B)Minimum 1.8 mm (0.07 in) 1.8 mm (0.07 in)
Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)
Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)
Angle (left side and right side)
Degree minute (decimal degree)Minimum 0° 3′ (0.05°)0° 3′ (0.05°)
Nominal 0° 5′ (0.08°)0° 5′ (0.08°)
Maximum 0° 7′ (0.12°)0° 7′ (0.12°)
Wheel turning angle
(full turn)Inside
Degree minute (decimal degree)34° 31′ – 38° 31′ *2
(34.52° – 38.52°)34° 44′ – 38° 44′ *4
(34.73° – 38.73°)
Outside
Degree minute (decimal degree)30° 59′ – 34° 59′ *3
(30.98° – 34.98°)30° 29′ – 34° 29′ *5
(30.48° – 34.48°)
SFA234AC

NAVIGATION SYSTEM
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NAVIGATION SYSTEMPFP:25915
System DescriptionEKS00BJD
The navigation system periodically calculates the vehicle's current
position according to the following three signals: Travel distance of
the vehicle as determined by the vehicle speed sensor, turning angle
of the vehicle as determined by the gyroscope (angular velocity sen-
sor), and the direction of vehicle travel as determined by the GPS
antenna (GPS information).
The current position of the vehicle is then identified by comparing the
calculated vehicle position with map data read from the map DVD-
ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen with a current-location mark.
By comparing the vehicle position detection results found by the
GPS and by map-matching, more accurate vehicle position data can
be used.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
TRAVEL DISTANCE
Travel distance calculations are based on the vehicle speed sensor input signal. Therefore, the calculation
may become incorrect as the tires wear down. To prevent this, an automatic distance fine adjustment function
has been adopted. Adjustments can be made in extreme cases (such as driving with tire chain fitted on tires).
Refer to AV-107, "
Confirmation/Adjustment Mode" .
TRAVEL DIRECTION
Change in the travel direction of the vehicle is calculated by a gyroscope (angular velocity sensor) and a GPS
antenna (GPS information). As the gyroscope and GPS antenna have both merit and demerit, input signals
from them are prioritized in each situation. However, this order of priority may change in accordance with more
detailed travel conditions so that the travel direction is detected more accurately.
MAP-MATCHING
Map-matching is a function that repositions the vehicle on the road
map when a new location is judged to be the most accurate. This is
done by comparing the current vehicle position, calculated by the
method described in the position detection principle, with the road
map data around the vehicle, read from the map DVD-ROM stored in
the DVD-ROM drive.
Therefore, the vehicle position may not be corrected after the vehicle
is driven over a certain distance or time in which GPS information is
hard to receive. In this case, the current-location mark on the display
must be corrected manually.
CAUTION:
The road map data is based on data stored in the map DVD-
ROM.
WKIA1371E
SEL684V
Type Advantage Disadvantage
Gyroscope (angular velocity sensor)

Can detect the vehicle's turning angle
quite accurately.
Direction errors may accumulate when the
vehicle is driven for long distances without
stopping.
GPS antenna (GPS information)

Can detect the vehicle's travel direction
(North/South/East/West).
Correct direction cannot be detected when
the vehicle speed is low.
SEL685V

BRC-4
[VDC/TCS/ABS]
PRECAUTIONS
Revision: October 20052005 QX56
2. Is there any indication other than indications relating to CAN communication system in the self-diagnosis
results?

If YES, GO TO 3.

If NO, GO TO 4.
3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefor, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to BRC-10, "
CAN COMMUNICATION" .
Precautions for Brake ControlEFS004X6

During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.

Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from
engine compartment. This is a normal status of operation check.

Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.

When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnosis. Besides electrical system inspection, check booster operation, brake fluid level, and fluid leaks.

If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.

If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.

If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.

If the following components are replaced with non-genuine components or modified, the VDC OFF indica-
tor lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs, bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, rotors, calipers, etc.), components related to engine
(muffler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).

Driving with broken or excessively worn suspension components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.

When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.

When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as
sharp curves on a freeway), the VDC may not operate normally, or the VDC warning lamp and the SLIP
indicator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the
engine.

Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw
rate/side G sensor to indicate a problem. This is not a problem if normal operation can be resumed after
restarting the engine.
Precautions for CAN SystemEFS004X7

Do not apply voltage of 7.0V or higher to terminal to be measured.

Maximum open terminal voltage of tester in use must be less than 7.0V.

Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.

DI-14
COMBINATION METERS
Revision: October 20052005 QX56
Next test requested Sc1XXDisplays 8-bit software
configuration value in Hex
format.Bit Coding
7-3 = reserved for future use
2 = TCS/VDC 0 = not present
1 = present
1 = Shift type 0 = Column shift
1 = Floor shift
0 = ICC 0 = not present
1 = present
Next test requested Sc2XXDisplays 8-bit software
configuration value in Hex
format.Bit coding
7-0 = Reserved for future use
Next test requested EprXXDisplays 8-bit software
configuration value in Hex
format.Bit Coding
7-2 = reserved for future use
1 = A/T Oil Temp (gauge)
0 = not present
1 = present
1 = Odo Units 0 = kilometers
1 = miles
Next test requested 1nFXXDisplays 8-bit market info
value in Hex format.$31 = USA
$2A = Canada
$0E = GCC
Next test requested cYLXXDisplays 8-bit engine con-
figuration value in Hex
format.$08 = 8 cylinder
$06 = 6 cylinder
Next test requested FFXXXXDisplays 16-bit fuel flow
constant "Q" in tenths of
cc/min in Hex format.$0000 - $FFFF
Next test requested tFDisplays 16-bit tire factor
"A" in hundredths in Hex
format.$0000 - $FFFF
Next test requested ot1XXDisplays oil pressure tell-
tale "on" threshold in A/D
counts in Hex format.$00 - $FF
Next test requested ot0XXDisplays oil pressure tell-
tale "off" threshold in A/D
counts in Hex format.$00 - $FF
Next test requested XXXXXRaw uncompensated
english speed value in
hundredths of MPH.
Speedometer indicates
present speed.Will display "-----" if message is
not received. Will display
"99999" if data received is
invalid
Next test requested XXXXXRaw uncompensated
metric speed value in
hundredths of KPH.
Speedometer indicates
present speed.Will display "-----" if message is
not received. Will display
"99999" if data received is
invalid
Next test requested tXXXXTachometer value in
RPM. Tachometer indi-
cates present RPM.Will display "-----" if message is
not received.
Next test requested F1 XXXXPresent ratioed fuel level
A/D input 1 in decimal for-
mat. Fuel gauge indicates
present filtered level.000-009 = Short circuit
010-254 = Normal range
255 = Open circuit
--- = Missing 5 seconds
Next test requested XXXCLast temperature gauge
input value in degrees C.
Temperature gauge indi-
cates present filtered tem-
perature.Will display "---"C if message is
not received.
Will display "999" if data
received is invalid. Event Odometer Display Description of Test/Data Notes:

FSU-6
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
ON-VEHICLE SERVICEPFP:00000
Front Suspension PartsEES001GI
Check front suspension parts for excessive play, cracks, wear and
other damage.

Shake each front wheel to check for excessive play.
If looseness is noted, inspect wheel bearing end play, then
check ball joint end play. Refer to FAX-5, "
WHEEL BEARING
INSPECTION" and FSU-15, "Inspection" .

Make sure that the cotter pin is inserted (4x4 only).

Retighten all nuts and bolts to the specified torque.

Check shock absorber for oil leakage and other damage.

Check suspension ball joint for grease leakage and ball joint
dust cover for cracks and other damage.
Front Wheel AlignmentEES001GJ
PRELIMINARY INSPECTION
WAR NIN G:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specification, inspect and replace any damaged or worn suspension parts before making
any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to WT-5, "
Inspection" .
4. Check the wheel bearing axial end play. Refer to FAX-5, "
WHEEL BEARING INSPECTION" .
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height. Refer to FSU-21, "
Wheelarch Height (Unladen*1 )" .

Verify the level using Consult-II memory register 1103 and set to 0 ± 10 mm (0 ± 0.39 in) as necessary.
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.

This type of alignment is recommended for any NISSAN vehicle.

The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.

The alignment machine itself should be capable of accepting any NISSAN vehicle.

The alignment machine should be checked to ensure that it is level.
2. Make sure the alignment machine is properly calibrated.

Your alignment machine should be regularly calibrated in order to give correct information.Suspension component torques : Refer to FSU-5,
"Components" .SM A52 5A
SFA392B

FSU-20
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: October 20052005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General Specifications (Front)EES001GT
Wheel Alignment (Unladen*1 )*6EES001GU
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 37° 31′ (37.52°)
*3: Target value 33° 59′ (33.98°)
*4: Target value 37° 44′ (37.73°)
*5: Target value 33° 29′ (33.48°)
*6: Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers.Suspension type Independent double wishbone coil over shock
Shock absorber type Double-acting hydraulic
StabilizerStandard equipment
Drive type4x2 4x4
Camber
Degree minute (decimal degree)Minimum -0° 51′ (-0.85°)-0° 33′ (-0.55°)
Nominal -0° 6′ (-0.10°)0° 12′ (0.20°)
Maximum 0° 39′ (0.65°)0° 57′ (0.95°)
Cross camber 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Caster
Degree minute (decimal degree)Minimum 3° 15′ (3.25°)2° 45′ (2.75°)
Nominal 4° 0′ (4.00°)3° 30′ (3.50°)
Maximum 4° 45′ (4.75°)4° 15′ (4.25°)
Cross caster 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Kingpin inclination
Degree minute (decimal degree)13° 32′ (13.53°)13°13′ (13.22°)
Total toe-inDistance (A − B)Minimum 1.8 mm (0.07 in) 1.8 mm (0.07 in)
Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)
Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)
Angle (left side and right side)
Degree minute (decimal degree)Minimum 0° 3′ (0.05°)0° 3′ (0.05°)
Nominal 0° 5′ (0.08°)0° 5′ (0.08°)
Maximum 0° 7′ (0.12°)0° 7′ (0.12°)
Wheel turning angle
(full turn)Inside
Degree minute (decimal degree)34° 31′ – 38° 31′ *2
(34.52° – 38.52°)34° 44′ – 38° 44′ *4
(34.73° – 38.73°)
Outside
Degree minute (decimal degree)30° 59′ – 34° 59′ *3
(30.98° – 34.98°)30° 29′ – 34° 29′ *5
(30.48° – 34.48°)
SFA234AC

SERVICE DATA AND SPECIFICATIONS (SDS)
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Ball JointEES001GV
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1 )EES001GW
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Confirm level using Consult-II, register 1103. Set rear wheel arch height to “0” if necessary.Swinging force “A”Upper ball joint 8.1 – 103.2 N (0.8 – 10.5 kg-f, 1.8 – 23.2 lb-f) *1
Lower ball joint 11.4 – 145.5 N (1.1 – 14.8 kg-f, 2.5 – 32.7 lb-f) *2
Turning torque “B” 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4 - 57 in-lb)
Vertical end play “C”0 mm (0 in)
SFA858AWEIA0076E
Suspension type
Air leveling*2
Applied model 4x2 4x4
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

IDENTIFICATION INFORMATION
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Identification NumberEAS001G3
VEHICLE IDENTIFICATION NUMBER ARRANGEMENT
1. Emission control information label 2. Tire placard 3. F.M.V.S.S. certification label
4. Vehicle identification number plate 5. Vacuum hose diagram
WAIA0053E
Position Character Qualifier Definition
1
5N3 Manufacturer 5N3: USA produced multi-purpose vehicle 2
3
4 A Engine type A: VK56DE
5 A Vehicle line A: Infiniti QX56
6 0 Model change (0-9)
7 8 Body type 8: 4 door wagon
8AGross vehicle
weight ratingA: 2WD, 4-wheel ABS, Class E
B: 4WD, 4-wheel ABS, Class E
9 * Check digit(0 to 9 or X) The code for the check digit is determined by a mathematical
computation.
10 5 Model year 2005
11 NManufacturing
plantN: Canton Mississippi
12
XXXXXVehicle serial num-
berChassis number 13
14
15
16
17

IDENTIFICATION INFORMATION
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Revision: October 20052005 QX56
DimensionsEAS001G4
Unit: mm (in)
Wheels & TiresEAS001G5
Drive type4x2 4x4
Overall length 5255 (206.9) 5255 (206.9)
Overall width 2001 (78.8) 2001 (78.8)
Overall height (with roof rack) 1976.8 (77.8) 1997.7 (78.7)
Front tread width 1725 (67.9) 1725 (67.9)
Rear tread width 1725 (67.9) 1725 (67.9)
Wheelbase 3130 (123.2) 3130 (123.2)
Minimum Running Ground Clearance (at front sus-
pension)With standard
undercover254.8 (10.03) 273.7 (10.77)
With oil pan skid
plate250.5 (9.86) 269.5 (10.61)
Drive Type Grade Road wheel Tire Spare tire size
All LE7-Spoke 18x8J Chromium Aluminum
AlloyP265/70R18 P265/70R18

LAN-10
[CAN]
CAN COMMUNICATION
Revision: October 20052005 QX56
TYPE 3
System diagram

Type3
Brake pressure sensor signal R T
System setting signalRT
TR
Distance to empty signal T R
ASCD operation signal T R
ASCD OD cancel request T R
A/T CHECK indicator lamp signal T R
A/T position indicator lamp signal T R R
Current gear position signal T R
Tire pressure signal R T
Tire pressure data signal R T
1st position switch signal R T
4th position switch signal R T
Tow mode switch signal R T
A/T fluid temperature sensor signal T R
ICC operation signal R R T
ICC OD cancel request signal R R T
ICC sensor signal T R
ICC system display signal T R
ICC steering switch signal T RSignals ECM TCMICC
sen-
sorICC
unitDriver
seat
con-
trol
unitCom-
bina-
tion
mete
rDis-
play
con-
trol
unitBCMSteer-
ing
angle
sensorFront
air
con-
trol ABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)IPD
M E/
R
PKIA8174E