2011 INFINITI QX56 service

PREPARATIONRAX-3
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000006225460
The actual shapes of Kent-Moore t ools may differ from those of special service tools illustrated here.
Commercial Service ToolsINFOID:0000000006225461
Tool number
(Kent-Moore No.)
Tool name Description
KV40107300
( − )
Boot band crimping tool Installing boot band
ZZA1229D
Tool name
Description
Power tool Loosening bolts and nuts
Drive shaft puller Remove drive shaft joint sub assembly
Ball joint remover Removing hub bolt
PBIC0190E
JPDIG0152ZZ
NT146
Revision: 2010 May2011 QX56

RAX-8
< REMOVAL AND INSTALLATION >
REAR WHEEL HUB AND HOUSING
b. Using suitable tool, rotate adjuster (1) in the direction (A) toretract and loosen brake shoe.
5. Remove wheel sensor harness. Refer to BRC-135, "
REAR
WHEEL SENSOR : Removal and Installation".
6. Remove parking brake shoe and parking brake cable from back plate. Refer to PB-7, "
Removal and Installation" and PB-5,
"Removal and Installation".
7. Remove height sensor from rear lower link (right side). Refer to EXL-136, "
Removal and Installation".
8. Remove vehicle height sensor from rear lower link (left side). Refer to SCS-98, "
Removal and Installation".
9. Set suitable jack under rear lower link.
10. Remove rear lower link from axle housing. Refer to RSU-8, "
Removal and Installation".
11. Remove coil spring. Refer to RSU-8, "
Removal and Installation".
12. Remove cotter pin and adjusting cap, then loosen wheel hub lock nut.
13. Put matching mark (A) on drive shaft and wheel hub and bearing assembly.
CAUTION:
Use paint or similar substance for matching marks. Never
scratch the surface.
14. Patch wheel hub lock nut with a piece of wood. Hammer the wood to disengage wheel hub and bearing assembly from drive
shaft.
CAUTION:
 Never place drive shaft joint at an extreme angle. Also be
careful not to over extend slide joint.
 Never allow drive shaft to ha ng down without support for
counterpart such as joint sub-assembly, and other parts.
NOTE:
Use a suitable puller, if wheel hub and bearing assembly and drive shaft cannot be separated even after
performing the above procedure.
15. Remove wheel hub lock nut.
16. Remove suspension arm from axle housing. CAUTION:
Never damage ball joint boot.
17. Remove front lower link from axle housing. CAUTION:
Never damage ball joint boot.
18. Remove axle housing.
19. Remove wheel hub and bearing assembly.
20. Remove anchor block mounting nuts, and then remove anchor block and back plate from axle housing.
21. Remove hub bolts (1) from wheel hub and bearing assembly, using the ball joint remover (A) (commercial service tool).
CAUTION:
 Remove hub bolt only when necessary.
 Never hammer the hub bolt to avoid impact to the wheel
hub and bearing assembly.
 Pull out the hub bolt in a direction perpendicular to the wheel hub and bearing assembly.
22. Perform inspection after removal. Refer to RAX-9, "
Inspection".
INSTALLATION
Note the following, and install in the reverse order of removal.
JPFIB0014ZZ
JPDIG0121ZZ
JPDIF0299ZZ
Revision: 2010 May2011 QX56

REAR WHEEL HUB AND HOUSINGRAX-9
< REMOVAL AND INSTALLATION >
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 Place a suitable washer (A) as shown in the figure to install the hub bolts (1) by using the tightening force of the nut (B).
CAUTION:
 Check that there is no cl earance between wheel hub and
bearing assembly, and hub bolt.
 Never reuse hub bolt.
 Clean the matching surface of wheel hub lock nut and wheel hub and bearing assembly. CAUTION:
Never apply lubricating oi l to these matching surface.
 Clean the matching surface of drive shaft and wheel hub and bear-
ing assembly. And then apply paste [service parts (440037S000)]
to surface (A) of joint sub-assembly of drive shaft.
CAUTION:
Apply paste to cover entire fl at surface of joint sub-assembly
of drive shaft.
 Use the following torque range for tightening the wheel hub lock nut.
CAUTION:
 Since the drive shaft is assembled by press-fitting , use the tightening torque range for the wheel
hub lock nut.
 Be sure to use torque wrench to tighten th e wheel hub lock nut. Never use a power tool.
NOTE:
Wheel hub lock nut tightening torque does not over tor que for avoiding axle noise, and does not less than
torque for avoiding looseness.
 Perform the final tightening of each of parts under unladen conditions, which were removed when removing wheel hub and bearing assembly and axle housing.
 When installing the adjusting cap, check that there must be no play.
 Never reuse cotter pin, wheel hub lock nut, and bushing.
 Perform inspection after installation. Refer to RAX-9, "
Inspection".
InspectionINFOID:0000000006225467
INSPECTION AFTER REMOVAL
Wheel Hub and Bearing Assembly
Check the wheel hub and bearing assembly for wear, cracks, and damage. Replace if necessary.
Axle Housing
Check the axle housing for wear, cracks, and damage. Replace if necessary.
Ball Joint Inspection
Check for boot breakage, axial looseness, and torque of suspension arm ball joint. Refer to RSU-13, "Inspec-
tion and Adjustment".
INSPECTION AFTER INSTALLATION
1. Adjust parking brake operation (stroke). Refer to PB-3, "Inspection and Adjustment".
2. Check wheel alignment. Refer to RSU-6, "
Inspection".
3. Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
JPDIF0300ZZ
Amount paste 1.0 – 3.0 g (0.04 – 0.10 oz)
: 218 – 223 N·m (22.3 – 22.7 kg-m, 161 – 164 ft-lb)
JPDIG0122ZZ
Revision: 2010 May2011 QX56

REAR DRIVE SHAFTRAX-11
< REMOVAL AND INSTALLATION >
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REAR DRIVE SHAFT
Exploded ViewINFOID:0000000006225468
Removal and InstallationINFOID:0000000006225469
REMOVAL
1. Remove tire.
2. Remove parking brake cable from suspension member. Refer to PB-5, "
Removal and Installation".
3. Remove wheel sensor harness. Refer to BRC-135, "
REAR WHEEL SENSOR : Removal and Installation".
4. Remove height sensor from rear lower link (right side). Refer to EXL-136, "
Removal and Installation".
5. Remove vehicle height sensor from rear lower link (left side). Refer to SCS-98, "
Removal and Installa-
tion".
6. Set suitable jack under rear lower link.
7. Remove rear lower link (axle housing side). Refer to RSU-8, "
Removal and Installation".
8. Remove coil spring. Refer to RSU-8, "
Removal and Installation".
9. Remove cotter pin and adjusting cap, then loosen wheel hub lock nut. Refer to RAX-7, "
Removal and
Installation".
1. Housing 2. Snap ring 3. Ball cage/steel ball/inner race as-
sembly
4. Stopper ring 5. Boot band 6. Boot
7. Shaft 8. Circular clip 9. Joint sub-assembly
10. Dust shield : Wheel side
1: NISSAN genuine grease or an equivalent.
2: Apply paste [service parts (440037S000)].
Refer to GI-4, "
Components" for symbols not described on the above.
JPDIG0164GB
Revision: 2010 May2011 QX56

RAX-12
< REMOVAL AND INSTALLATION >
REAR DRIVE SHAFT
10. Put matching mark (A) on drive shaft and wheel hub and bearingassembly.
CAUTION:
Use paint or similar substance for matching marks. Never
scratch the surface.
11. Patch wheel hub lock nut with a piece of wood. Hammer the wood to disengage wheel hub and bearing assembly from drive
shaft.
CAUTION:
 Never place drive shaft joint at an extreme angle. Also becareful not to over extend slide joint.
 Never allow drive shaft to ha ng down without support for
counterpart such as joint sub-assembly, and other parts.
NOTE:
Use a suitable puller if wheel hub and bearing assembly and drive shaft cannot be separated even after
performing the above procedure.
12. Remove wheel hub lock nut.
13. Remove mounting bolts between side flange and drive shaft.
14. Remove drive shaft from the vehicle.
15. Perform inspection after removal. Refer to RAX-16, "
Inspection".
INSTALLATION
Note the following, and install in the reverse order of removal.
 Clean the matching surface of wheel hub lock nut and wheel hub and bearing assembly.
CAUTION:
Never apply lubricating oi l to these matching surface.
 Clean the matching surface of drive shaft and wheel hub and bear- ing assembly. And then apply paste [service parts (440037S000)]
to surface (A) of joint sub-assembly of drive shaft.
CAUTION:
Apply paste to cover entire fl at surface of joint sub-assembly
of drive shaft.
 Use the following torque range for tightening the wheel hub lock nut.
CAUTION:
 Since the drive shaft is assembled by press-fittin g, use the tightening torque range for the wheel
hub lock nut.
 Be sure to use torque wrench to tighten th e wheel hub lock nut. Never use a power tool.
NOTE:
Wheel hub lock nut tightening torque does not over torque for avoiding axle noise, and does not less than
torque for avoiding looseness.
 Perform the final tightening of each of parts under unladen conditions, which were removed when removing
wheel hub and bearing assembly and axle housing.
 When installing the adjusting cap, check that there must be no play.
 Never reuse cotter pin, wheel hub lock nut.
WHEEL SIDE
WHEEL SIDE : Disassembly and AssemblyINFOID:0000000006225470
DISASSEMBLY
1. Fix shaft with a vise. CAUTION:
Protect shaft when fixing with a vi se using aluminum or copper plates.
JPDIG0121ZZ
Amount paste 1.0 – 3.0 g (0.04 – 0.10 oz)
: 218 – 223 N·m (22.3 – 22.7 kg-m, 161 – 164 ft-lb)
JPDIG0122ZZ
Revision: 2010 May2011 QX56

REAR DRIVE SHAFTRAX-13
< REMOVAL AND INSTALLATION >
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2. Remove dust shield from drive shaft.
3. Remove boot bands and then remove boot from joint sub-assembly.
4. Screw the drive shaft puller (commercial service tool) (A) 30 mm (1.18 in) or more into the thread of joint sub-assembly, and pull
joint sub-assembly from shaft.
CAUTION:
 If joint sub-assembly cannot be removed after five ormore unsuccessful attempts, replace shaft and joint sub
assembly as a set.
 Align drive shaft puller and drive shaft and remove them by pulling directory.
5. Remove circular clip from shaft.
6. Remove boot from shaft.
ASSEMBLY
1. While rotating ball cage, clean old grease on joint sub-assembly with paper waste.
2. Fill serration slot joint sub-assembly (1) with NISSAN genuine grease or equivalent until the serration slot and ball groove
become full to the brim.
CAUTION:
After applying grease, use a shop cloth to wipe off old
grease that has oozed out.
3. Install boot and boot bands to shaft. CAUTION:
 Wrap serration on shaft with tape (A) to protect the bootfrom damage.
 Never reuse boot and boot band.
4. Remove the tape wrapped around the serration on shaft.
5. Position circular clip on groove at the shaft edge. CAUTION:
Never reuse circular clip.
NOTE:
Drive joint inserter is recommended when installing circular clip.
6. Align both center axles of the shaft edge and joint sub-assembly. Then assemble shaft with joint s ub-assembly holding circular clip.
7. Install joint sub-assembly to shaft using plastic hammer. CAUTION:
Confirm that joint sub-assembly is correctly engaged while
rotating drive shaft.
8. Apply the specified amount of grease into the boot inside from
large diameter side of boot.
JPDIG0151ZZ
JPDIF0008ZZ
Grease amount : Refer to RAX-18, "Drive Shaft".
JPDIF0009ZZ
RAC0049D
Revision: 2010 May2011 QX56

RAX-18
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel Hub and Bearing AssemblyINFOID:0000000006225473
Drive ShaftINFOID:0000000006225474
Item Standard
Axial end play 0.05 mm (0.002 in) or less
ItemStandard
Wheel side Final drive side
Grease quantity 145 – 165 g (5.11 – 5.82 oz) 175 – 195 g (6.17 – 6.88 oz)
Boots installed length 134.5 mm (5.30 in) 147.9 mm (5.82 in)
Revision: 2010 May2011 QX56

RF-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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CONTENTS
ROOF
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Commercial Service Tool .................................... ......4
SYSTEM DESCRIPTION ..............................5
COMPONENT PARTS ................................... .....5
Component Parts Location ................................ ......5
Component Description ............................................5
SYSTEM ..............................................................6
System Diagram ................................................. ......6
System Description ...................................................6
ECU DIAGNOSIS INFORMATION ...............7
BCM (BODY CONTROL MODULE) ............... .....7
List of ECU Reference ........................................ ......7
SUNROOF SYSTEM ...................................... .....8
Reference Value ................................................. ......8
WIRING DIAGRAM .......................................9
SUNROOF MOTOR ASSEMBLY ................... .....9
Wiring Diagram ................................................... ......9
BASIC INSPECTION ...................................16
DIAGNOSIS AND REPAIR WORKFLOW ..... ....16
WorkFlow ............................................................ ....16
INSPECTION AND ADJUSTMENT ....................17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description .................................
17
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement ......
17
DTC/CIRCUIT DIAGNOSIS .........................18
POWER SUPPLY AND GROUND CIRCUIT ....18
Diagnosis Procedure .......................................... ....18
VEHICLE SPEED SIGNAL CIRCUIT ................20
Component Function Check ..................................20
Diagnosis Procedure ..............................................20
SUNROOF SWITCH ..........................................21
Component Function Check ..................................21
Diagnosis Procedure ..............................................21
Component Inspection .............................................22
SYMPTOM DIAGNOSIS ..............................23
SUNROOF DOES NOT OPERATE PROPER-
LY ......................................................................
23
Description ........................................................... ....23
Diagnosis Procedure ...............................................23
SUNROOF DOES NOT OPERATE ANTI-
PINCH FUNCTION ............................................
24
Diagnosis Procedure ........................................... ....24
RETAINED POWER OPERATION DOES NOT
OPERATE PROPERLY .....................................
25
Diagnosis Procedure ...............................................25
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ..............................................................
26
Work Flow ................................................................26
Inspection Procedure ...............................................28
Diagnostic Worksheet ..............................................30
REMOVAL AND INSTALLATION ...............32
GLASS LID ........................................................32
Revision: 2010 May2011 QX56