2007 INFINITI QX56 height

REAR LOWER LINK & COIL SPRING
RSU-35
< SERVICE INFORMATION >
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REAR LOWER LINK & COIL SPRING
Removal and InstallationINFOID:0000000003532676
REMOVAL
1. Remove the wheel and tire assembly using power tool. Refer to WT-7, "Rotation" .
2. Use CONSULT-II "EXHAUST SOLENOID" active test to release the air pressure from the rear load level-
ing air suspension system.
3. For removing the LH rear lower link and coil spring, remove the
height sensor arm bracket bolt from the LH rear lower link.
4. Set a suitable jack to relieve the coil spring tension from the rear
lower link.
WARNING:
Do not compress the coil spring when setting the jack.
5. Loosen the rear lower link adjusting bolt and nut connected to
the rear suspension member, using power tool.
6. Remove the rear lower link bolt and nut from the knuckle using
power tool.
7. Slowly lower the suitable jack to release the coil spring tension. Then remove the upper rubber seat, coil
spring, and lower rubber seat from the rear lower link.
LEIA0080E
LEIA0077E
LEIA0009E
LEIA0077E

RSU-38
< SERVICE INFORMATION >
REAR LOAD LEVELING AIR SUSPENSION COMPRESSOR ASSEMBLY
REAR LOAD LEVELING AIR SUSPENSION COMPRESSOR ASSEMBLY
Removal and InstallationINFOID:0000000003532678
Rear Load Leveling Air Suspension System
REMOVAL
1. Use CONSULT-II "EXHAUST SOLENOID" active test to release the air pressure from the rear load level-
ing air suspension system.
2. Disconnect the electrical connectors for the rear load leveling air suspension compressor assembly.
3. Unclip the rubber cover to access the rear load leveling air suspension compressor assembly.
4. Disconnect the rear load leveling air suspension hoses at the
rear load leveling air suspension compressor assembly.
• To disconnect the hoses, push in on the lock ring using a suit-
able tool and pull the hose out.
AWEIA0076ZZ
1. Rear load leveling air suspension
hose, RH2. Shock absorber, RH 3. Height sensor
4. Rear load leveling air suspension
hose, LH5. Shock absorber, LH 6. Rear load leveling air suspension
compressor assembly
⇐Front
LEIA0074E

RSU-40
< SERVICE INFORMATION >
HEIGHT SENSOR
HEIGHT SENSOR
Removal and InstallationINFOID:0000000003532679
Rear Load Leveling Air Suspension System
REMOVAL
1. Use CONSULT-II “EXHAUST SOLENOID” active test to release the air pressure from the rear load level-
ing air suspension system.
2. Disconnect the electrical connector for the height sensor.
3. Remove the two height sensor bolts and height sensor arm
bracket bolt.
4. Remove the height sensor.
INSTALLATION
Installation is in the reverse order of removal.
AWEIA0076ZZ
1. Rear load leveling air suspension
hose, RH2. Shock absorber, RH 3. Height sensor
4. Rear load leveling air suspension
hose, LH5. Shock absorber, LH 6. Rear load leveling air suspension
compressor assembly
⇐Front
LEIA0080E

HEIGHT SENSOR
RSU-41
< SERVICE INFORMATION >
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1. Start the engine.
2. Use CONSULT-II to perform "STANDARD HEIGHT LEVEL" work support function.
3. Using data monitor of CONSULT-II, verify "HEIGT CALC" is at 0 mm.
4. Check the vehicle height. Refer to RSU-44, "
Wheelarch Height (Unladen*1)" . If vehicle height is not within
± 10 mm (0 ± 0.39 in) of the specification, perform the initialization procedure. Refer to RSU-42, "
Initializa-
tion Procedure".

RSU-42
< SERVICE INFORMATION >
CONTROL UNIT
CONTROL UNIT
Removal and InstallationINFOID:0000000003532680
REMOVAL
1. Remove the rear LH interior trim panel. Refer to EI-34 .
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 ProcedureINFOID:0000000003532681
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)

RSU-44
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheelarch Height (Unladen*
1)INFOID:0000000003532684
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-42, "
Initialization Procedure" . Suspension type
Air leveling*
2
Applied model2WD 4WD
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

SEAT BELTS
SB-3
< SERVICE INFORMATION >
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SEAT BELTS
Removal and Installation of Front Seat BeltINFOID:0000000003532843
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. Assist handle 2. Assist handle screw cover 3. D-ring anchor bolt cover
4. Seat belt buckle 5. Seat belt retractor and belt assembly
LH6. Anchor cover
7. Seat belt pre-tensioner connector 8. Center pillar lower finisher 9. Seat belt anchor bracket
10. Center pillar 11. Center pillar upper finisher 12. Seat belt height adjuster
13. Seat belt height adjuster finisher
AWHIA0172GB

SB-4
< SERVICE INFORMATION >
SEAT BELTS
1. Disconnect both battery cables. then wait at least 3 minutes.
2. Remove the center pillar upper/lower finishers. Refer to EI-34
.
3. Remove the retractor anchor bolt, retractor bolt upper, then remove the retractor and belt assembly.
• On RH side, disconnect the seat belt tension sensor.
4. Disconnect the seat belt pre-tensioner electrical connector.
CAUTION:
• For removing pre-tensioner connector, insert a thin
screwdriver (1) wrapped in tape (3) into the notch. Lift the
locking tab to unlock (2), then remove the connector.
• Install the pre-tensioner connector with the locking tab
raised, then push the locking tab into the connector to
lock (4).
Installation
Installation is in the reverse order of removal.
• Install the seat belt retractor and belt assembly bolt upper first.
• Make sure the seat belt height adjuster is locked in the lowest position during installation.
FRONT SEAT BELT BUCKLE
Removal
1. Seat belt retractor and belt assembly
RH2. Seat belt lower anchor RH (seat belt
tension sensor)3. Anchor cover RH (LH similar)
4. Seat belt lower anchor LH 5. Seat belt anchor bracket 6. Seat belt retractor and belt assembly
LH
7. Center pillar A. Lower anchor bolt B. Anchor bracket bolt
C. Retractor anchor bolt D. Retractor bolt upper⇐Vehicle front
WHIA0346E
WHIA0279E