2004 INFINITI QX56 height

RF-24
SUNROOF
Revision: August 20072004 QX56
Fitting AdjustmentEIS002WZ
GAP ADJUSTMENT
NOTE:
If any gap or height difference between glass lid and roof panel is found, check glass lid fit and adjust as fol-
lows:
1. Open sunshade assembly.
2. Loosen glass lid securing screws (2 each on left and right sides), then tilt glass lid down.
3. Manually adjust glass lid from outside of vehicle so it resembles "A-A" as shown in the figure.
4. After adjusting glass lid tilt glass lid up and tighten screws.
5. Tilt glass lid up and down several times to check that it moves smoothly.
HEIGHT DIFFERENCE ADJUSTMENT
1. Tilt glass lid up and down.
2. Check height difference between roof panel and glass lid, and compare to “A-A”.
Removal and InstallationEIS002X0

After any adjustment, check sunroof operation and glass lid alignment.

Handle glass lid with care so not to cause damage.

For easier installation, mark each point before removal.
CAUTION:

Always work with a helper.

Before removal, fully close the glass lid assembly. Then, after removal, do not move the motor
assembly.
WIIA0760E

RFD-1
REAR FINAL DRIVE
D DRIVELINE/AXLE
CONTENTS
C
E
F
G
H
I
J
K
L
M
SECTION RFD
A
B
RFD
Revision: August 20072004 QX56 PREPARATION ........................................................... 2
Special Service Tools ............................................... 2
Commercial Service Tools ........................................ 4
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
FRONT OIL SEAL ...................................................... 6
Removal and Installation .......................................... 6
REMOVAL ............................................................. 6
INSTALLATION ..................................................... 7
SIDE OIL SEAL .......................................................... 8
Removal and Installation .......................................... 8
REMOVAL ............................................................. 8
INSTALLATION ..................................................... 8
REAR FINAL DRIVE ASSEMBLY ............................ 10
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ....................................................11
Components ............................................................11
Pre-Inspection ........................................................ 12
TOTAL PRELOAD ............................................... 12
DRIVE GEAR TO DRIVE PINION BACKLASH ... 12
DRIVE GEAR RUNOUT ...................................... 12
COMPANION FLANGE RUNOUT ...................... 13
TOOTH CONTACT .............................................. 13
Disassembly and Assembly ................................... 13
REMOVAL OF DIFFERENTIAL CASE ASSEM-BLY ...................................................................... 13
REMOVAL OF DRIVE PINION ASSEMBLY ........ 14
DISASSEMBLY OF DIFFERENTIAL CASE
ASSEMBLY ......................................................... 16
INSPECTION ...................................................... 17
ADJUSTMENT OF DIFFERENTIAL CASE ......... 17
SIDE BEARING PRELOAD ................................. 18
TOOTH CONTACT .............................................. 19
ASSEMBLY OF DIFFERENTIAL CASE ASSEM-
BLY ...................................................................... 20
INSTALLATION OF DRIVE PINION ASSEMBLY ... 21
INSTALLATION OF DIFFERENTIAL CASE
ASSEMBLY ......................................................... 23
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 26
General Specifications ............................................ 26
Drive Gear Runout .................................................. 26
Side Gear Adjustment ............................................ 26
AVAILABLE SIDE GEAR THRUST WASHERS ... 26
Drive Pinion Height Adjustment .............................. 26
AVAILABLE PINION HEIGHT ADJUSTING
WASHERS .......................................................... 26
Drive Pinion Preload Adjustment ............................ 26
Side Bearing Preload Adjustment ........................... 27
SIDE BEARING ADJUSTING WASHERS .......... 27
Total Preload Adjustment ........................................ 27

REAR FINAL DRIVE ASSEMBLY
RFD-11
C
E
F
G
H
I
J
K
L
MA
B
RFD
Revision: August 20072004 QX56
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
After installation, check the final drive oil level. Refer to MA-24, "
Checking Final Drive Oil" .
ComponentsEDS002JN
R230 2–PINION
WDIA0294E
1. Drive pinion nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Pinion bearing adjusting spacer (col-
lapsible spacer)6. Pinion rear bearing
7. Pinion height adjusting washer 8. Drive pinion 9. Gear carrier
10. Drive gear 11. Pinion mate shaft 12. Lock pin
13. Pinion mate gear 14. Pinion mate thrust washer 15. Side gear
16. Side gear thrust washer 17. Differential case 18. Side bearing

REAR FINAL DRIVE ASSEMBLY
RFD-15
C
E
F
G
H
I
J
K
L
MA
B
RFD
Revision: August 20072004 QX56
3. Remove the drive pinion together with the rear bearing inner
race and the bearing adjusting spacer.
4. Remove the front oil seal. Refer to RFD-6, "
FRONT OIL SEAL"
.
5. Remove the pinion front bearing inner race.
6. Remove the side oil seal. Refer to RFD-8, "
SIDE OIL SEAL" .
7. Remove the pinion bearing outer races using a suitable brass
drift.
8. Remove the pinion rear bearing inner race and the drive pinion
height adjusting washer using Tool.
SPD8 92
SDIA0817E
Tool number: : ST30021000 ( — )
S-PD1 79

REAR FINAL DRIVE ASSEMBLY
RFD-21
C
E
F
G
H
I
J
K
L
MA
B
RFD
Revision: August 20072004 QX56
3. Apply genuine medium strength locking sealant or equivalent as
shown. Refer to GI-45, "
Recommended Chemical Products and
Sealants" .

Tighten the drive gear bolts in a criss-cross pattern to specifi-
cation.
4. Press-fit the side bearing inner races on the differential case
using Tools.
INSTALLATION OF DRIVE PINION ASSEMBLY
1. Press-fit the pinion front and rear bearing outer races using
Tools.
2. Select pinion height adjusting washer. Refer to RFD-26, "
Drive Pinion Height Adjustment" . Drive gear bolts
Step 1 : 78.5 N·m (8.0 kg-m, 58 ft-lb)
Step 2 : 34° degrees
SPD5 54
Tool number A: KV38100200 (J-26233)
B: ST33081000 ( — )
SPD3 53
Tool number A: ST15310000 ( — )
B: ST35325000 ( — )
C: ST30621000 ( — )
SPD9 92

RFD-22
REAR FINAL DRIVE ASSEMBLY
Revision: August 20072004 QX56
3. Install the selected pinion height adjusting washer in the drive
pinion. Using a suitable press and Tool, press-fit pinion rear
bearing inner race into the drive pinion.
4. Apply multi-purpose grease to the pinion rear bearing inner race
and pinion front bearing inner race.
5. Set the drive pinion assembly in the differential carrier as shown,
and install drive pinion using a suitable press and suitable tool.
Stop when drive pinion touches the bearing.
6. Install the front oil seal using Tool. Refer to RFD-6, "
Removal and Installation" .
7. Install the companion flange, and tighten the pinion nut to a min-
imum using Tool. Check that the threaded portion of the drive
pinion and drive pinion nut are free of oil or grease.
CAUTION:
The drive pinion nut is not reusable. Use a new drive pinion
nut for installation. Tool number : ST30022000 ( — )
SPD3 77
SDIA0826E
SPD8 96
Tool number : KV40104000 ( — )
SDIA11 45 E

RFD-26
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: August 20072004 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEDS002JQ
Drive Gear RunoutEDS0 02 JR
Unit: mm (in)
Side Gear Adjustment EDS002JS
Unit: mm (in)
AVAILABLE SIDE GEAR THRUST WASHERS
Unit: mm (in)
Drive Pinion Height AdjustmentEDS002JT
AVAILABLE PINION HEIGHT ADJUSTING WASHERS
Unit: mm (in)
Drive Pinion Preload AdjustmentEDS0 02 JU
Grade2WD 4WD
Final drive modelR230 (2 - pinion)
Gear ratio2.937 : 1 3.357 : 1
Number of teeth (drive gear / drive pinion) 47 / 16 47 / 14
Oil capacity (approx.)
1.75 (3 3/4 US pt, 3 1/8 Imp pt)
Final drive modelR230 (2 - pinion)
Drive gear runout limit 0.05 (0.0020) or less
Final drive modelR230 (2 - pinion)
Clearance limit between side gear and differential case 0.20 (0.0079) or less
Final drive modelR230 (2 - pinion)
Thrust washerThickness Part number
1.75 (0.0688) 38424 7S000
1.80 (0.0708) 38424 7S001
1.85 (0.0728) 38424 7S002
Final drive model R230 (2 - pinion)
Adjusting washerThickness Part number Thickness Part number
2.59 (0.1020) 38154 40P00 2.79 (0.1098) 38154 40P10
2.61 (0.1028) 38154 40P01 2.81 (0.1106) 38154 40P11
2.63 (0.1035) 38154 40P02 2.83 (0.1114) 38154 40P12
2.65 (0.1043) 38154 40P03 2.85 (0.1122) 38154 40P13
2.67 (0.1051) 38154 40P04 2.87 (0.1130) 38154 40P14
2.69 (0.1059) 38154 40P05 2.89 (0.1138) 38154 40P15
2.71 (0.1067) 38154 40P06 2.91 (0.1146) 38154 40P16
2.73 (0.1075) 38154 40P07 2.93 (0.1154) 38154 40P17
2.75 (0.1083) 38154 40P08 2.95 (0.1161) 38154 40P18
2.77 (0.1091) 38154 40P09 2.97 (0.1169) 38154 40P19
Final drive modelR230 (2 - pinion)
Drive pinion preload 1.77 − 2.64 N·m (0.18 − 0.26 kg−m, 16 − 23 in-lb)

RSU-1
REAR SUSPENSION
E SUSPENSION
CONTENTS
C
D
F
G
H
I
J
K
L
M
SECTION RSU
A
B
RSU
Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Rear Suspension ............................ 3
Wiring Diagrams and Trouble Diagnosis .................. 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
CAN COMMUNICATION ............................................ 6
System Description .................................................. 6
TROUBLE DIAGNOSIS .............................................. 7
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ....................................................... 7
INTRODUCTION ................................................... 7
CLARIFY CONCERN ............................................ 7
WORK FLOW ........................................................ 8
Component Parts and Harness Connector Location ..... 9
Wiring Diagram — A/SUSP — ............................... 10
Basic Inspection ..................................................... 12
AIR HOSES ......................................................... 12
POWER SYSTEM TERMINAL LOOSENESS
AND BATTERY INSPECTION ............................ 12
CK SUSP INDICATOR LAMP INSPECTION ...... 12
CK SUSP Indicator Lamp Timing ........................... 12
Control Unit Input/Output Signal Standard ............. 12
CONSULT-II Function (AIR LEVELIZER) ............... 13
CONSULT-II OPERATION .................................. 13
WORK SUPPORT ............................................... 14
SELF-DIAGNOSIS .............................................. 14
DATA MONITOR ................................................. 15
ACTIVE TEST ..................................................... 16
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ....................................................................... 17
Height Sensor System Inspection .......................... 17
Exhaust Valve Solenoid System Inspection ........... 19
Compressor Motor, Compressor Motor Relay and Circuit Inspection .................................................... 20
TROUBLE DIAGNOSES FOR SYMPTOMS ............ 23
Load Leveling Rear Air Suspension System Does
Not Operate ............................................................ 23
CK SUSP Indicator Lamp Stays On When Ignition
Switch Is Turned On ............................................... 24
REAR SUSPENSION ASSEMBLY ........................... 25
Components ........................................................... 25
On-Vehicle Inspection and Service ......................... 26
SHOCK ABSORBER INSPECTION .................... 26
Wheel Alignment Inspection ................................... 27
PRELIMINARY INSPECTION ............................. 27
GENERAL INFORMATION AND RECOMMEN-
DATIONS ............................................................. 27
THE ALIGNMENT PROCESS ............................. 28
CAMBER ............................................................. 28
TOE-IN ................................................................ 28
REAR SUSPENSION MEMBER ............................... 30
Removal and Installation ........................................ 30
REMOVAL ........................................................... 31
INSPECTION AFTER REMOVAL ....................... 32
INSTALLATION ................................................... 33
SHOCK ABSORBER ................................................ 34
Removal and Installation ........................................ 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 34
INSPECTION AFTER INSTALLATION ................ 34
SUSPENSION ARM .................................................. 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSPECTION AFTER REMOVAL ....................... 35
INSTALLATION ................................................... 36
FRONT LOWER LINK .............................................. 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 37
INSPECTION AFTER REMOVAL ....................... 37
INSTALLATION ................................................... 38