2009 INFINITI QX56 steering wheel adjustment

EC-18
< BASIC INSPECTION >[VK56DE]
INSPECTION AND ADJUSTMENT
With CONSULT-III
1. Check the VIN of the vehicle and note it. Refer to
GI-20, "Model Variation".
2. Turn ignition switch ON and engine stopped.
3. Select “VIN REGISTRATION ” in “WORK SUPPORT” mode.
4. Follow the instruction of CONSULT-III display.
Accelerator Pedal Released Position LearningINFOID:0000000003771298
DESCRIPTION
Accelerator Pedal Released Position Learning is an operati on to learn the fully released position of the accel-
erator pedal by monitoring the accelerator pedal positi on sensor output signal. It must be performed each time
harness connector of accelerator pedal pos ition sensor or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.
Throttle Valve Closed Position LearningINFOID:0000000003771299
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to l earn the fully closed position of the throttle valve by
monitoring the throttle position sensor output signal . It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF wait at least 10 seconds. Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume LearningINFOID:0000000003771300
DESCRIPTION
Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
 Each time electric throttle control actuator or ECM is replaced.
 Idle speed or ignition timing is out of specification.
PREPARATION
Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
 Battery voltage: More than 12.9V (At idle)
 Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
 Select lever: P or N
 Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
start the headlamp will not be illuminated.
 Steering wheel: Neutral (Straight-ahead position)
 Vehicle speed: Stopped
 Transmission: Warmed-up
- With CONSULT-III: Drive vehicle until “ATF TEMP SE 1” in “DATA MONITOR” mode of “A/T” system indi-
cates less than 0.9V.
- Without CONSULT-III: Drive vehicle for 10 minutes.
OPERATION PROCEDURE
Revision: December 20092009 QX56

EXL-3
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Diagnosis Procedure ...........................................
..
139
BOTH SIDE FRONT FOG LAMPS ARE NOT
TURNED ON .....................................................
140
Description ............................................................140
Diagnosis Procedure .............................................140
PRECAUTION ............................................141
PRECAUTIONS .............................................. ..141
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
141
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ..
141
General precautions for service operations ..........142
ON-VEHICLE REPAIR .... ...........................143
ADJUSTMENT AND INSPECTION ................ ..143
HEADLAMP ........................................................... ..143
HEADLAMP : Aiming Adjustment .........................143
FRONT FOG LAMP ............................................... ..144
FRONT FOG LAMP : Aiming Adjustment .............144
REMOVAL AND INSTALLATION .............146
HEADLAMP .................................................... ..146
Bulb Replacement .................................................146
Removal and Installation .......................................147
Disassembly and Assembly ................................ ..147
AUTO LIGHT SYSTEM ....................................149
Removal and Installation ..................................... ..149
FRONT FOG LAMP ........................................150
Bulb Replacement .................................................150
Removal and Installation .......................................150
LIGHTING & TURN SIGNAL SWITCH ...........152
Removal and Installation .......................................152
HAZARD SWITCH ..........................................153
Removal and Installation .......................................153
PUDDLE LAMP ...............................................154
Removal and Installation .......................................154
Bulb Replacement .................................................154
LICENSE PLATE LAMP .................................155
Bulb Replacement .................................................155
Removal and Installation .......................................155
STOP LAMP ....................................................156
Bulb Replacement .................................................156
Removal and Installation .......................................156
REAR COMBINATION LAMP .........................157
Bulb Replacement .................................................157
Removal and Installation .......................................157
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... .
158
BULB SPECIFICATIONS ................................158
Headlamp ............................................................ ..158
Exterior Lamp ........................................................158
Revision: December 20092009 QX56

FAX-8
< REMOVAL AND INSTALLATION >
WHEEL HUB
8. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
 Use new bolts when installing the wheel hub and bearing assembly.
 Tighten drive shaft nut to specification. Refer to FAX-9, "Removal and Installation"
.
 When installing disc rotor on wheel hub and bearing assembly, position the disc rotor according to alignment mark.
(When not using the alignment mark, refer to BR-7, "DISC ROTOR
: Inspection".)
 When installing wheel and tire. Refer to WT-41, "Adjustment"
.
WDIA0044E
Revision: December 20092009 QX56

FSU-6
< ON-VEHICLE MAINTENANCE >
ON-VEHICLE SERVICE
ON-VEHICLE MAINTENANCE
ON-VEHICLE SERVICE
Front Suspension PartsINFOID:0000000003772269
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 FA X - 6 , "
On-Vehicle Inspection and Ser-
vice" and FSU-10, "Inspection".
• Make sure that the cotter pin is inserted (4WD 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 AlignmentINFOID:0000000003772270
PRELIMINARY INSPECTION
WARNING:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specificat ion, 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-40, "
Inspection" .
4. Check the wheel bearing axial end play. Refer to FA X - 6 , "
On-Vehicle Inspection and Service" .
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-24, "
Wheelarch Height (Unladen*1)" .
• Verify the level using Consult-III 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 ca pable of accepting any NISSAN vehicle.
• The alignment machine should be checked to ensure that it is level. Suspension component
torques : Refer to FSU-13,
"Component" . SMA525A
SFA392B
Revision: December 20092009 QX56

FSU-14
< REMOVAL AND INSTALLATION >
COIL SPRING AND SHOCK ABSORBER
REMOVAL AND INSTALLATION
COIL SPRING AND SHOCK ABSORBER
Removal and InstallationINFOID:0000000003772274
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the shock absorber lower bolt using power tool.
3. Remove the three shock absorber upper nuts using power tool.
4. Remove the coil spring and shock absorber assembly.• Turn steering knuckle out to gain enough clearance forremoval.
INSTALLATION
Installation is in the reverse order of removal.
• The lower seat step (2) in the shock absorber assembly (1) faces
outside of vehicle.
- Upper spring insulator (3)
- : Front
• Tighten all nuts and bolts to specification. Refer to FSU-13, "
Com-
ponent" .
• When installing wheel and tire, refer to WT-41, "
Adjustment".
DisposalINFOID:0000000005867502
1. Set shock absorber horizontally with the piston rod fully extended.
2. Drill 2 – 3 mm (0.08 – 0.12 in) hole at the position ( ) from top
as shown in the figure to release gas gradually.
CAUTION:
• Wear eye protection (safety glasses).
• Wear gloves.
• Be careful with metal chips or oil blown out by the com-pressed gas.
NOTE:
• Drill vertically in this direction ( ).
• Directly to the outer tube avoiding brackets.
• The gas is clear, colorless, odorless, and harmless.
3. Position the drilled hole downward and drain oil by moving the piston rod several times. CAUTION:
Dispose of drained oil according to the law and local regulations.
LEIA0093E
WEIA0155E
A : 20 – 30 mm (0.79 – 1.18 in)
JPEIA0161ZZ
Revision: December 20092009 QX56

FSU-16
< REMOVAL AND INSTALLATION >
UPPER LINK
UPPER LINK
Removal and InstallationINFOID:0000000003772276
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the fender protector to access upper link. Refer to EXT-23, "
Removal and Installation" .
3. Remove cotter pin and nut from upper link ball joint and discard the cotter pin.
4. Separate upper link ball joint stud from steering knuckle using Tool.
• Support lower link with jack.
5. Remove upper link bolts and nuts, then remove upper link.
INSPECTION AFTER REMOVAL
Upper Link
Check for deformation and cracks. Replace if necessary.
Upper Link Ball Joint
Check for distortion and damage. Replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten all nuts and bolts to specification. Refer to FSU-13, "
Component".
CAUTION:
Use a new cotter pin for installation of upper link ball joint nut.
• When installing wheel and tire, refer to WT-41, "
Adjustment".
• After installation, check that the front wheel alignment is within specification. Refer to FSU-6, "
Front Wheel
Alignment" .
Tool number : ST29020001 (J-24319-01)
LEIA0095E
LEIA0096E
Revision: December 20092009 QX56

LOWER LINKFSU-17
< REMOVAL AND INSTALLATION >
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LOWER LINK
Removal and InstallationINFOID:0000000003772277
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove lower shock absorber bolt.
3. Remove stabilizer bar connecting rod lower nut using power tool, then separate connecting rod from lower
link. Refer to FSU-15, "
Removal and Installation".
4. Remove drive shaft nut, if equipped. Refer to FA X - 9 , "
Removal and Installation".
5. Remove pinch bolt from steering knuckle using power tool, then separate lower link ball joint from steering knuckle.
6. Remove lower link bolts (1) and nuts, then the lower link (2). NOTE:
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) bolt and washers.
INSPECTION AFTER REMOVAL
Lower Link
Check for deformation and cracks. Replace if necessary.
Lower Link Bushing
Check for distortion and damage. Replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten all nuts and bolts to specification. Refer to FSU-13, "
Component".
• When installing wheel and tire, refer to WT-41, "
Adjustment".
• After installation, check that the front wheel alignment is within specification. Refer to FSU-6, "
Front Wheel
Alignment".
LEIA0097E
WEIA0153E
Revision: December 20092009 QX56

FSU-20
< REMOVAL AND INSTALLATION >
KNUCKLE
7. Remove pinch bolt from steering knuckle using power tool, thenseparate lower link ball joint from steering knuckle.
8. Remove steering knuckle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.
• Perform ball joint inspection. Refer to FSU-10, "
Inspection".
INSTALLATION
Installation is in the reverse order of removal.
• Refer to FSU-13, "
Component" for tightening torques.
CAUTION:
Use a new cotter pin for installation of lock nut.
• When installing disc rotor on wheel hub and bearing assembly, align the marks.
NOTE:
When not using the alignment mark, refer to BR-7, "
DISC ROTOR
: Inspection".
• When installing wheel and tire, refer to WT-41, "
Adjustment".
LEIA0097E
WDIA0044E
Revision: December 20092009 QX56