INFINITI QX4 2005 Factory Service Manual

RSU-46
CONTROL UNIT
Revision: October 20052005 QX56
CONTROL UNITPFP:47850
Removal and InstallationEES001HR
REMOVAL
1. Remove the rear LH interior trim panel. Refer to EI-35, "BODY SIDE TRIM" .
2. Disconnect the battery negative terminal.
3. Disconnect the suspension control unit electrical connector.
4. Remove the two bolts and remove the suspension control unit.
INSTALLATION
Installation is in the reverse order of removal.
Initialization ProcedureEES001HS
1. If control unit has been replaced, proceed to step 2. If control unit has not been replaced, use CONSULT-
II “CLEAR HEIGHT INI” work support function to clear initialization flag and value. The CK SUSP warning
lamp should illuminate. Using CONSULT-II “EXHAUST SOLENOID” active test, release the air pressure
from the rear load leveling air suspension system.
2. Roll vehicle forward and backward.
3. Use CONSULT-II “ADJUST HEIGHT INI” work support function to set initialization condition.
4. Confirm that CK SUSP warning lamp is OFF.
LEIA0100E
Suspension control unit bolts : 6 N·m (0.6 kg-m, 53 in-lb)

SERVICE DATA AND SPECIFICATIONS (SDS)
RSU-47
C
D
F
G
H
I
J
K
L
MA
B
RSU
Revision: October 20052005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Wheel AlignmentEES001HT
Ball JointEES001HU
Camber
Degree minute (decimal degree)Minimum 0° 0′ (0°)
Nominal - 0° 30′ (-0.5°)
Maximum - 1° 0′ (-1.0°)
Cross camber 0° 45′ (0.75°)
To e - i nDistance (A - B)Minimum 0 mm (0 in)
Nominal 3.3 mm (0.130 in)
Maximum 6.6 mm (0.260 in)
Cross toe 2 mm (0.079 in)
Angle (left, right)
Degree minute (decimal
degree)Minimum 0° 0′ (0°)
Nominal 0° 7′ (0.11°)
Maximum 0° 14′ (0.22°)
Cross toe 0° 8′ (0.14°)
SFA234AC
Swinging force (measurement point: cotter pin hole of ball stud) “A” 11.4 - 145.5 N (1.16 - 14.8 kg, 2.56 - 32.7 lb)
Turning torque “B” 0.5 - 6.4 N·m (0.06 - 0.65 kg-m, 5 - 56 in-lb)
Vertical end play “C”0 mm (0 in)
SFA858A

RSU-48
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: October 20052005 QX56
Wheelarch Height (Unladen*1 )EES001HV
Unit: mm (in)
*1: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Verify the vehicle height. If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization pro-
cedure. Refer to RSU-46, "
Initialization Procedure" . Suspension type
Air leveling*
2
Applied model4x2 4x4
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

SB-1
SEAT BELTS
H RESTRAINTS
CONTENTS
C
D
E
F
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M
SECTION SB
A
B
SB
Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions for Seat Belt Service ............................ 2
AFTER A COLLISION ........................................... 2
SEAT BELTS .............................................................. 3
Removal and Installation of Front Seat Belt ............. 3
FRONT SEAT BELT RETRACTOR ....................... 4
F RONT SEAT BELT BUCKLE .............................. 5
Removal and Installation of Rear Seat Belt ............. 6
REMOVAL ............................................................. 6
INSTALLATION ..................................................... 7
REMOVAL OF SEAT BELT BUCKLE .................... 7
INSTALLATION OF SEAT BELT BUCKLE ............ 7
REMOVAL OF SEAT BELT RETRACTOR -
BENCH SEAT ....................................................... 7
INSTALLATION OF SEAT BELT RETRACTOR - BENCH SEAT ........................................................ 7
Third Row ................................................................. 8
REMOVAL AND INSTALLATION .......................... 8
Third Row Center ..................................................... 9
REMOVAL AND INSTALLATION .......................... 9
Seat Belt Inspection ................................................ 10
AFTER A COLLISION ......................................... 10
PRELIMINARY CHECKS .................................... 10
SEAT BELT RETRACTOR ON-VEHICLE
CHECK ................................................................ 11
SEAT BELT RETRACTOR OFF-VEHICLE
CHECK ................................................................ 11
LATCH (LOWER ANCHORS AND TETHER FOR
CHILDREN) SYSTEM ............................................... 13
Removal and Installation ........................................ 13
TOP TETHER STRAP CHILD RESTRAINT ............. 14
Removal and Installation ........................................ 14

SB-2
PRECAUTIONS
Revision: October 20052005 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EHS00161
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WAR NIN G:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Seat Belt ServiceEHS00162
CAUTION:

Before removing the seat belt pre-tensioner assembly, turn the ignition switch OFF, disconnect
both battery cables and wait at least 3 minutes.

After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting seat belt pre-ten-
sioner assembly connector, ensure entire SRS operates properly. Refer to SRS-20, "
SRS Opera-
tion Check" .

Do not disassemble buckle or seat belt assembly.

Do not reuse seat belt anchor bolts after removal. Replace with new ones.

Replace anchor bolts if they are deformed or worn out.

Never oil tongue and buckle.

If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.

If webbing is cut, frayed, or damaged, replace seat belt assembly.

When replacing seat belt assembly, use a genuine NISSAN seat belt assembly.
AFTER A COLLISION
WAR NIN G:

Inspect all seat belt assemblies including retractors and attaching hardware after any collision.

NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the
collision was minor and the belts show no damage and continue to operate properly. Failure to do
so could result in serious personal injury in an accident. Seat belt assemblies not in use during a
collision should also be replaced if either damage or improper operation is noted. Seat belt pre-
tensioner should be replaced even if the seat belts are not in use during a frontal collision in which
the air bags are deployed.
Replace any seat belt assembly (including anchor bolts) if:

The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).

The seat belt was damaged in an accident. (i.e., torn webbing, bent retractor or guide, etc.)

The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt assembly.

Anchor bolts are deformed or worn out.

The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.

SEAT BELTS
SB-3
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B
SB
Revision: October 20052005 QX56
SEAT BELTSPFP:86884
Removal and Installation of Front Seat Belt EHS00163
1. Assist handle 2. Assist handle screw cover 3. D-ring anchor bolt cover
4. Seat belt buckle 5. Seat belt retractor and belt assem-
bly LH6. Anchor cover
7. Seat belt pre-tensioner connector 8. Center pillar lower finisher 9. Seat belt anchor
10. Center pillar 11. Center pillar upper finisher 12. Seat belt height adjuster
13. Seat belt height adjuster finisher
LHIA0066E

SB-4
SEAT BELTS
Revision: October 20052005 QX56
FRONT SEAT BELT RETRACTOR
Removal
CAUTION:

Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least
3 minutes.
1. Remove the center pillar upper/lower finishers. Refer to EI-35, "
BODY SIDE TRIM" .
2. Remove the seat belt retractor anchor bolts and seat belt retractor and belt assembly.

On RH side, disconnect the seat belt tension sensor.
3. Disconnect the seat belt pre-tensioner electrical connector.
CAUTION:

For installing/removing front seat belt pre-tensioner con-
nector, insert a thin screwdriver wrapped in tape into the
notch, lift the lock and remove the connector.

Install the connector with the lock raised, and push the lock
into the connector.
Installation
Installation is in the reverse order of removal.

Install the seat belt retractor and belt assembly upper bolt first.

Ensure that seat belt height adjuster is locked in the lowest position during installation.
LHIA0047E
PHIA0341E

SEAT BELTS
SB-5
C
D
E
F
G
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K
L
MA
B
SB
Revision: October 20052005 QX56
FRONT SEAT BELT BUCKLE
Removal
1. Remove the front seat. Refer to SE-97, "Removal and Installation" .
2. Remove the seat cushion. Refer to SE-102, "
SEAT CUSHION TRIM AND PAD (DRIVER) OR SEAT
CUSHION ASSEMBLY (PASSENGER)" .
3. Remove screw and seat cushion inner finisher.
4. Remove the anchor bolt and buckle.
Installation
Installation is in the reverse order of removal.
WHIA0231E

SB-6
SEAT BELTS
Revision: October 20052005 QX56
Removal and Installation of Rear Seat Belt EHS00164
Second Row
REMOVAL
1. Remove seat belt lower anchor cover and bolt.
2. Remove the D-ring anchor bolt cover and D-ring anchor bolt.
3. Remove the upper and lower luggage area trim. Refer to EI-35, "
BODY SIDE TRIM" .
WHIA0228E
1. Seat belt height adjuster 2. D-ring anchor bolt cover 3. D-ring anchor
4. Seat belt retractor and belt assem-
bly5. Seat belt buckle 6. Seat belt retractor cover
7. Push pin 8. Seat belt retractor and belt assem-
bly9. Seat belt bezel
10. Seat belt buckle 11. Seat cushion finisher 12. Seat belt lower anchor

SEAT BELTS
SB-7
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B
SB
Revision: October 20052005 QX56
4. Remove the seat belt guide bolt.
5. Remove seat belt retractor anchor bolt and the seat belt retractor and belt assembly.
6. Remove the seat belt height adjustor assembly.
INSTALLATION
Installation is in the reverse order of removal.

Ensure that seat belt height adjuster is locked in the lowest position during installation.
REMOVAL OF SEAT BELT BUCKLE
1. Remove the rear bucket seat. Refer to SE-104, "Removal and
Installation" .
2. Remove the screw and seat cushion inner finisher. Refer to SE-
104, "Removal and Installation" .
3. Remove the anchor bolt and buckle.
4. Remove the rear bench seat. Refer to SE-104, "
Removal and Installation" .
5. Remove the seat cushion finisher.
6. Remove the anchor bolt and buckle.
INSTALLATION OF SEAT BELT BUCKLE
Installation is in the reverse order of removal.
REMOVAL OF SEAT BELT RETRACTOR - BENCH SEAT
1. Remove seat belt anchor.
2. Remove seat belt bezel.
3. Remove seat back upholstery and foam. Refer to SE-104, "
Removal and Installation" .
4. Remove seat belt retractor cover.
5. Remove bolt and remove seat belt retractor and belt assembly.
INSTALLATION OF SEAT BELT RETRACTOR - BENCH SEAT
Installation is in the reverse order of removal.
WHIA0229E