upper INFINITI QX56 2010 Factory Service Manual

RSU-22
< REMOVAL AND INSTALLATION >
REAR LOWER LINK & COIL SPRING
8. Remove the rear lower link adjusting bolt and nut from the rearsuspension member using power tool, then remove the rear
lower link.
INSPECTION AFTER REMOVAL
Check the coil spring and rubber seats for deformation, cracks, or other damage and replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten the nuts and bolts to specification. Refer to RSU-9, "
Component" .
• When installing the upper and lower rubber seats for the rear coil springs, the arrow embossed on the rubber seats must point out
toward the wheel and tire assembly.
• After installing the rear lower link and coil spring, check the wheel alignment and adjust if necessary. Refer to RSU-6, "
Wheel Align-
ment Inspection"
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SB-4
< ON-VEHICLE REPAIR >
SEAT BELTS
ON-VEHICLE REPAIR
SEAT BELTS
Removal and Installation of Front Seat BeltINFOID:0000000005266528
FRONT SEAT BELT RETRACTOR
Removal
CAUTION:
1. Assist handle 2. Assist handle screw cover3. D-ring anchor bolt cover
4. Seat belt buckle 5. Seat belt retractor and belt assembly
LH 6. 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 finisher12. Seat belt height adjuster
13. Seat belt height adjuster finisher
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SEAT BELTSSB-5
< ON-VEHICLE REPAIR >
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• Before servicing SRS, turn the igni tion switch off, disconnect both battery terminals and wait at least
three minutes.
1. Disconnect both battery terminals, t hen wait at least three minutes.
2. Remove the center pillar lower finisher. Refer to INT-14, "
Removal and Installation".
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 thinscrewdriver (1) wrapped in tape (3) into the notch. Lift the
locking tab to unlock (2), then remove the connector.
• Install the pre-tensioner co nnector 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 that seat belt height adjuster is lo cked in the lowest position during installation.
FRONT SEAT BELT BUCKLE
1. Seat belt retractor and belt assembly
RH 2. 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 bracket6. Seat belt retractor and belt assembly
LH
7. Center pillar A. Lower anchor boltB. Anchor bracket bolt
C. Retractor anchor bolt D. Retractor bolt upper ⇐Vehicle front
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SB-12
< ON-VEHICLE REPAIR >
SEAT BELTS
4. Check the shoulder seat belt guide and shoulder belt height adjuster for\
front seats. Ensure guide swivelsfreely and that belt lays flat and does not bind in guide. Ensure height adjuster operates properly and
holds securely.
5. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Ensure that belt retu rns smoothly and completely into the retractor. If the
seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth, because dirt built
up in the loops of the upper anchors can c ause the seat belts to retract slowly.
c. Fasten the seat belt. Check the seat belt returns smoothly and completely to the retractor. If the belt does not return smoothly, the cause may be an accumulati on of dust or dirt. Use the “SEAT BELT TAPE SET”
and perform the following steps.
Inspect the front seat belt through-anchor:1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2. Use a clip or other device to hold the seat belt at the center pillar belt opening.
3. Pass a thin wire through the through-anchor belt opening. Hold both ends of the wire and pull taut while moving it up and down several times along the belt opening surface to remove dirt.
4. Any dirt that cannot be removed with the wir e can be removed by cleaning the opening with a clean
cloth.
5. Apply tape at the point where the belt contacts the through-anchor belt opening.
NOTE:
Apply the tape so that there is no looseness or wrinkling.
6. Remove the clip holding the seat belt and check that the belt returns smoothly.
7. Repeat steps above as necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the belt from ext ending any further. All 3-point type seat belt retractors
except the driver's seat belt also have an Automati c Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the belt is then retracted partiall y, the ALR mode automatically locks the seat belt in a
specific position so the belt cannot be extended any furt her. To cancel the ALR mode, allow the seat belt to
fully wind back into the retractor.
Check the seat belt retractors using the following test(s ) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check
Grasp the shoulder belt and pull forward quickly. The re tractor should lock and prevent the belt from extending
further.
ALR Function Stationary Check
1. Pull out entire length of seat belt from retractor until a click is heard.
2. Retract the belt partially. A clicking noise should be hear d as the belt retracts indicating that the retractor is
in the Automatic Locking Retractor (ALR) mode.
3. Grasp the seat belt and try to pull out the retractor. The belt must lock and not extend any further. If neces-
sary replace the retractor assembly.
4. Allow the entire length of the belt to re tract to cancel the automatic locking mode.
ELR Function Moving Check
WARNING:
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be p aved and dry. DO NOT perform the following test on
wet or gravel roads or on public streets and highw ays. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock.
1. Fasten drivers seat belt. Buckle a passenger in to the seat for the belt that is to be tested.
Revision: April 20092010 QX56

SCS-6
< FUNCTION DIAGNOSIS >
SUSPENSION CONTROL SYSTEM
Component Parts Location
INFOID:0000000005148148
:Front
Component DescriptionINFOID:0000000005148149
1. Suspension control unit B3 (view with upper and lower luggage side finishers
LH removed) 2. Suspension air compressor C9 (view
under vehicle behind LH rear suspen-
sion) 3. Height sensor C8 (view under vehicle
at LH rear suspension)
4. Compressor motor relay E130, E131 (view with battery removed)
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Part name Description
Suspension control unit • Monitors height sensor input to determine vehicle height.
• Actuates the compressor motor relay or exhaust valve solenoid to raise or
lower the vehicle accordingly.
• Sends a ground signal to the combination meter to activate the CK SUSP indicator lamp.
Suspension air compressor (with built in exhaust valve
solenoid) • When the compressor is actuated, it pumps air into the system to raise the
rear suspension.
• When the exhaust valve solenoid is actuated, it vents air from the system to lower the rear suspension.
Height sensor Provides vehicle height input to the suspension control unit.
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FRONT SEATSE-71
< DISASSEMBLY AND ASSEMBLY >
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Installation
Installation is in the reverse order of removal.
PASSENGER SEATBACK BOARD - HARD SEATBACK
Removal
1. The seatback board is attached to
the seat frame with the follow-
ing:
• 2 top tabs (A)
• 2 side tabs (B)
• 2 bottom clips (C) (must be replaced)
2. Move seat to forward position.
3. Hold the seatback board as shown and pull the bottom of the seatback board away from the seat back frame.
4. Pull the middle part of the seatback board to disengage the side tabs (B) from the seatback frame.
5. Lift the upper part of the seatback board to disengage the top tabs from the seatback frame.
Installation
Installation is in the reverse order of removal.
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SN-50
< REMOVAL AND INSTALLATION >
SONAR CONTROL UNIT
SONAR CONTROL UNIT
Removal and InstallationINFOID:0000000005146217
Removal
1. Remove the luggage side finisher lower and upper LH. Refer to INT-19, "Removal and Installation".
2. Disconnect the sonar control unit electrical connectors.
3. Remove the bolt, then remove the sonar control unit. • Front and rear sonar control unit (1)
• Rear sonar control unit (1)
INSTALLATION
Installation is in the reverse order of removal.
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SN
BUZZERSN-51
< REMOVAL AND INSTALLATION >
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BUZZER
Removal and InstallationINFOID:0000000005146218
FRONT BUZZER
Removal
1. Remove the instrument panel upper cover. Refer to IP-11, "Exploded View".
2. Remove the two bolts (1), disconnect the connector (2) and remove the front buzzer.
Installation
Installation is in the reverse order of removal.
REAR BUZZER
NOTE:
Rear buzzer location used only for vehicles equipped with both front and rear sonar systems.
Removal
1. Partially remove the rear headliner. Refer to INT-17, "Removal and Installation".
2. Release the buzzer from the bracket, disconnect the connector and remove the buzzer.
Installation
Installation is in the reverse order of removal.
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Revision: April 20092010 QX56

SPIRAL CABLESR-7
< ON-VEHICLE REPAIR >
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SPIRAL CABLE
Removal and InstallationINFOID:0000000005147758
REMOVAL
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery terminals and wait at
least three minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
1. Disconnect both the negative and positive battery te rminals, then wait at least three minutes.
2. Remove the steering wheel. Refer to ST-18, "
Removal and Installation".
3. Remove the instrument lower panel LH. Refer to IP-14, "
Exploded View".
4. Remove the column cover upper and lower.
5. Remove wiper washer switch connector, then pinch the tabs at wiper and washer switch base and slide switch away from steer-
ing column to remove.
1. Steering wheel 2. Lighting and turn signal switch 3. Wiper and washer switch
4. Spiral cable 5. Driver air bag module connector 6. Column cover upper
7. Column assembly 8. Column cover lower9. Screw (Do not remove)
10. Screw A. Refer to ST-18, "
Removal and Instal-
lation"
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Revision: April 20092010 QX56

SIDE AIR BAG (SATELLITE) SENSORSR-15
< ON-VEHICLE REPAIR >
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SIDE AIR BAG (S ATELLITE) SENSOR
Removal and InstallationINFOID:0000000005147762
REMOVAL
CAUTION:
• Before servicing the SRS, turn the ignition switch off, disconnect both battery terminals and wait at
least three minutes.
• Do not use old nuts after removal; replace with new nuts.
• Check side air bag (satellite) sensor to make sure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of da mage, replace it with new one.
• Do not disassemble side air bag (satellite) sensor.
• Replace side air bag (satellite ) sensor if it has been dropped or sustained an impact.
1. Disconnect both the negative and positive battery te rminals, then wait at least three minutes.
2. Remove seat belt retractor and belt assembly anchor bolt and retractor bolt upper, then set assembly
aside. Refer to SB-4, "
Removal and Installation of Front Seat Belt".
3. Remove side air bag (satellite) sensor nuts.
4. Disconnect the side air bag (satellite) sensor harness connector.
INSTALLATION
Installation is in the reverse order of removal.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRC-
13, "SRS Operation Check".
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Revision: April 20092010 QX56