Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti QX56 JA60 2004-2005 Approved 2004_QX56 rsu
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E SUSPENSION
A
SECTION RSU
REAR SUSPENSION
B
C
D
RSU
CONTENTS
PRECAUTIONS ......................................................... 3 . Circuit Inspection ................................................... 20
. F
Precautions for Supplemental Restraint System TROUBLE DIAGNOSES FOR SYMPTOMS ........... 23 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Load Leveling Rear Air Suspension System Does
SIONER" ................................................................. 3
. Not Operate ........................................................... 23
. G
Precautions for Rear Suspension ........................... 3 . CK SUSP Indicator Lamp Stays On When Ignition
Wiring Diagrams and Trouble Diagnosis ................. 3 . Switch Is Turned On .............................................. 24
.
PREPARATION .......................................................... 4 . REAR SUSPENSION ASSEMBLY .......................... 25 .
H
Commercial Service Tools ....................................... 4 . Components .......................................................... 25
.
NOISE, VIBRATION, AND HARSHNESS (NVH) On-Vehicle Inspection and Service ........................ 26 .
TROUBLESHOOTING ............................................... 5 . SHOCK ABSORBER INSPECTION ................... 26 .
NVH Troubleshooting Chart .................................... 5 . Wheel Alignment Inspection .................................. 27 . I
CAN COMMUNICATION ........................................... 6 . PRELIMINARY INSPECTION ............................ 27 .
System Description ................................................. 6 . GENERAL INFORMATION AND RECOMMEN-
TROUBLE DIAGNOSIS ............................................. 7 . DATIONS ............................................................ 27
. J
How to Perform Trouble Diagnoses for Quick and THE ALIGNMENT PROCESS ............................ 28 .
Accurate Repair ...................................................... 7
. CAMBER ............................................................ 28
.
INTRODUCTION .................................................. 7 . TOE-IN ............................................................... 28
.
K
CLARIFY CONCERN ........................................... 7 . REAR SUSPENSION MEMBER .............................. 30 .
WORK FLOW ....................................................... 8 . Removal and Installation ....................................... 30 .
Component Parts and Harness Connector Location 9 ..... REMOVAL .......................................................... 31
.
Wiring Diagram -- A/SUSP -- .............................. 10 . INSPECTION AFTER REMOVAL ...................... 32 . L
Basic Inspection .................................................... 12
. INSTALLATION .................................................. 33 .
AIR HOSES ........................................................ 12. SHOCK ABSORBER ............................................... 34 .
POWER SYSTEM TERMINAL LOOSENESS Removal and Installation ....................................... 34 . M
AND BATTERY INSPECTION ........................... 12 . REMOVAL .......................................................... 34
.
CK SUSP INDICATOR LAMP INSPECTION ..... 12 . INSTALLATION .................................................. 34 .
CK SUSP Indicator Lamp Timing .......................... 12 . INSPECTION AFTER INSTALLATION ............... 34 .
Control Unit Input/Output Signal Standard ............ 12 . SUSPENSION ARM ................................................. 35 .
CONSULT-II Function (AIR LEVELIZER) .............. 13 . Removal and Installation ....................................... 35 .
CONSULT-II OPERATION ................................. 13 . REMOVAL .......................................................... 35
.
WORK SUPPORT .............................................. 14 . INSPECTION AFTER REMOVAL ...................... 35 .
SELF-DIAGNOSIS ............................................. 14 . INSTALLATION .................................................. 36 .
DATA MONITOR ................................................ 15 . FRONT LOWER LINK ............................................. 37 .
ACTIVE TEST .................................................... 16 . Removal and Installation ....................................... 37 .
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC REMOVAL .......................................................... 37
.
ITEMS ...................................................................... 17
. INSPECTION AFTER REMOVAL ...................... 37 .
Height Sensor System Inspection ......................... 17 . INSTALLATION .................................................. 38 .
Exhaust Valve Solenoid System Inspection .......... 19 .
Compressor Motor, Compressor Motor Relay and
Revision: August 2007 RSU-1 2004 QX56
REAR LOWER LINK & COIL SPRING .................... 39 . HEIGHT SENSOR ....................................................44 .
Removal and Installation ....................................... 39 . Removal and Installation ........................................44 .
REMOVAL .......................................................... 39
. REMOVAL ...........................................................44 .
INSPECTION AFTER REMOVAL ....................... 40 . INSTALLATION ...................................................45 .
INSTALLATION ................................................... 40 . CONTROL UNIT .......................................................46 .
STABILIZER BAR .................................................... 41 . Removal and Installation ........................................46 .
Removal and Installation ....................................... 41 . REMOVAL ...........................................................46 .
REMOVAL .......................................................... 41
. INSTALLATION ...................................................46 .
INSTALLATION ................................................... 41 . Initialization Procedure ...........................................46 .
Inspection .............................................................. 41
. SERVICE DATA AND SPECIFICATIONS (SDS) .....47 .
REAR LOAD LEVELING AIR SUSPENSION COM- Wheel Alignment ....................................................47 .
PRESSOR ASSEMBLY ........................................... 42 . Ball Joint ................................................................47
.
Removal and Installation ....................................... 42 . 1
Wheelarch Height (Unladen* ) ..............................48 .
REMOVAL .......................................................... 42
.
INSTALLATION ................................................... 43 .
Revision: August 2007 RSU-2 2004 QX56
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EES0010X
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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.
WARNING: D
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. RSU
G 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. F
G 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.
G
Precautions for Rear Suspension EES0010Y
G When installing the rubber bushings, the final tightening must be done under unladen condition and with
the tires on level ground. Oil will shorten the life of the rubber bushings, so wipe off any spilled oil immedi- H
ately.
G Unladen condition means the fuel tank, engine coolant and lubricants are at the full specification. The
spare tire, jack, hand tools, and mats are in their designated positions. I
G After installing suspension components, check the wheel alignment.
G Caulking nuts are not reusable. Always use new caulking nuts for installation. New caulking nuts are pre-
oiled, do not apply any additional lubrication. J
Wiring Diagrams and Trouble Diagnosis EES0010Z
When you read wiring diagrams, refer to the following: K
G GI-15, "How to Read Wiring Diagrams".
G PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following: L
G GI-11, "How to Follow Trouble Diagnoses".
G GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident".
M
Revision: August 2007 RSU-3 2004 QX56
PREPARATION
PREPARATION PFP:00002
Commercial Service Tools EES00110
Tool name Description
Power tool G Removing wheel nuts
G Removing brake caliper assembly
G Removing rear suspension component
parts
PBIC0190E
Revision: August 2007 RSU-4 2004 QX56
Symptom
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