Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti QX4 R50 1997-1998.2001 Approved QX4-R50-2001 gi
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GENERAL INFORMATION
SECTION GI MA
EM
LC
EC
CONTENTS FE
PRECAUTIONS ...............................................................3 Terminal Lock Inspection ...........................................23
AT
Precautions ..................................................................3 HOW TO PERFORM EFFICIENT DIAGNOSIS
PRECAUTIONS FOR SUPPLEMENTAL FOR AN ELECTRICAL INCIDENT ...............................24 TF
RESTRAINT SYSTEM (SRS) AIR BAG AND Work Flow..................................................................24
SEAT BELT PRE-TENSIONER .................................3 Incident Simulation Tests...........................................25
PRECAUTIONS FOR IVIS (INFINITI VEHICLE INTRODUCTION ......................................................25 PD
IMMOBILIZER SYSTEM - NATS).................................3 VEHICLE VIBRATION ..............................................25
PRECAUTIONS FOR INFINITI COMMUNICATOR HEAT SENSITIVE ....................................................26
(IVCS) .......................................................................4 FREEZING ..............................................................26 AX
GENERAL PRECAUTIONS .........................................5 WATER INTRUSION ................................................27
PRECAUTIONS FOR MULTIPORT FUEL ELECTRICAL LOAD .................................................27
INJECTION SYSTEM OR ENGINE CONTROL COLD OR HOT START UP.......................................27 SU
SYSTEM ...................................................................6 Circuit Inspection .......................................................27
PRECAUTIONS FOR THREE WAY CATALYST ...........6 INTRODUCTION ......................................................27
PRECAUTIONS FOR HOSES .....................................7 TESTING FOR OPENS IN THE CIRCUIT ................28 BR
PRECAUTIONS FOR ENGINE OILS ...........................8 TESTING FOR SHORTS IN THE CIRCUIT ..............29
PRECAUTIONS FOR FUEL ........................................8 GROUND INSPECTION ...........................................30
PRECAUTIONS FOR AIR CONDITIONING ..................8 VOLTAGE DROP TESTS ..........................................30
ST
HOW TO USE THIS MANUAL........................................9 CONTROL UNIT CIRCUIT TEST ...............................32
HOW TO READ WIRING DIAGRAMS..........................11 HOW TO FOLLOW TROUBLE DIAGNOSIS ................34
Sample/Wiring Diagram - EXAMPL - ........................11 RS
How to Follow Test Groups in Trouble Diagnosis .....35
OPTIONAL SPLICE..................................................12 Key to Symbols Signifying Measurements or
Description .................................................................13
CONNECTOR SYMBOLS .........................................15
Procedures.................................................................36 BT
CONSULT-II CHECKING SYSTEM ...............................38
HARNESS INDICATION ...........................................16
Function and System Application ..............................38
COMPONENT INDICATION ......................................16
Nickel Metal Hydride Battery Replacement...............39 HA
SWITCH POSITIONS ...............................................16
DETECTABLE LINES AND NON-DETECTABLE Checking Equipment..................................................39
LINES .....................................................................17 CONSULT-II Data Link Connector (DLC) Circuit ......40
INSPECTION PROCEDURE .....................................40
SC
MULTIPLE SWITCH .................................................18
REFERENCE AREA .................................................19 IDENTIFICATION INFORMATION ................................41
HOW TO CHECK TERMINAL .......................................21 Model Variation ..........................................................41 EL
Connector and Terminal Pin Kit.................................21 PREFIX AND SUFFIX DESIGNATIONS .....................41
How to Probe Connectors .........................................21 Identification Number.................................................41
PROBING FROM HARNESS SIDE ............................21 VEHICLE IDENTIFICATION NUMBER IDX
PROBING FROM TERMINAL SIDE ...........................21 ARRANGEMENT .....................................................42
How to Check Enlarged Contact Spring of IDENTIFICATION PLATE..........................................42
Terminal .....................................................................22 ENGINE SERIAL NUMBER.......................................43
AUTOMATIC TRANSMISSION NUMBER ...................43
Waterproof Connector Inspection ..............................23
TRANSFER SERIAL NUMBER ..................................43
RUBBER SEAL INSPECTION ...................................23
Dimensions ................................................................43
WIRE SEAL INSPECTION ........................................23
CONTENTS (Cont'd)
Wheels & Tires ..........................................................44 2WD MODELS.........................................................48
LIFTING POINTS AND TOW TRUCK TOWING ...........45 4WD MODELS.........................................................48
Screw Jack ................................................................45 VEHICLE RECOVERY ..............................................49
Garage Jack and Safety Stand .................................46 TIGHTENING TORQUE OF STANDARD BOLTS ........50
2-pole Lift ...................................................................47 SAE J1930 TERMINOLOGY LIST ................................51
Tow Truck Towing ......................................................47 SAE J1930 Terminology List .....................................51
GI-2
PRECAUTIONS
Precautions
Precautions NBGI0001
Observe the following precautions to ensure safe and proper
servicing. These precautions are not described in each indi-
vidual section.
MA
EM
LC
PRECAUTIONS FOR SUPPLEMENTAL RESTRAINT
SYSTEM (SRS) "AIR BAG" AND "SEAT BELT
PRE-TENSIONER"
EC
NBGI0001S01
The Supplemental Restraint System such as "AIR BAG" and "SEAT
BELT PRE-TENSIONER" used along with a seat belt, helps to FE
reduce the risk or severity of injury to the driver and front passen-
ger for certain types of collision. The SRS system composition
which is available to INFINITI QX4 is as follows: AT
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