INFINITI QX4 2001 Factory Service Manual

Key to Symbols Signifying Measurements or
Procedures
NBGI0005S02
Symbol Symbol explanation Symbol Symbol explanation
Check after disconnecting the con-
nector to be measured.Procedure with Generic Scan Tool
(GST, OBD-II scan tool)
Check after connecting the connec-
tor to be measured.Procedure without CONSULT-II or
GST
Insert key into ignition switch.A/C switch is ªOFFº.
Remove key from ignition switch.A/C switch is ªONº.
Turn ignition switch to ªOFFº posi-
tion.REC switch is ªONº.
Turn ignition switch to ªONº position.REC switch is ªOFFº.
Turn ignition switch to ªSTARTº posi-
tion.Fan switch is ªONº. (At any position
except for ªOFFº position)
Turn ignition switch from ªOFFº to
ªACCº position.Fan switch is ªOFFº.
Turn ignition switch from ªACCº to
ªOFFº position.Apply positive voltage from battery
with fuse directly to components.
Turn ignition switch from ªOFFº to
ªONº position.Drive vehicle.
Turn ignition switch from ªONº to
ªOFFº position.Disconnect battery negative cable.
Do not start engine, or check with
engine stopped.Depress brake pedal.
Start engine, or check with engine
running.Release brake pedal.
Apply parking brake.Depress accelerator pedal.
Release parking brake.Release accelerator pedal.
HOW TO FOLLOW TROUBLE DIAGNOSIS
Key to Symbols Signifying Measurements or Procedures
GI-36

Symbol Symbol explanation Symbol Symbol explanation
Check after engine is warmed up
sufficiently.Pin terminal check for SMJ type
ECM and TCM connectors.
For details regarding the terminal
arrangement, refer to the ªELEC-
TRICAL UNITSº electrical refer-
ence page at the end of the
manual.
Voltage should be measured with a
voltmeter.
Circuit resistance should be mea-
sured with an ohmmeter.
Current should be measured with an
ammeter.
Procedure with CONSULT-II
Procedure without CONSULT-II
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HOW TO FOLLOW TROUBLE DIAGNOSIS
Key to Symbols Signifying Measurements or Procedures (Cont'd)
GI-37

NBGI0006
Function and System ApplicationNBGI0006S01
Diagnostic
test modeFunction ENGINEALL-
MODE
4WDA/T ABSAIR
BAGIVCS*1IVIS
(NATS)*2SMART
EN-
TRANCE
Work sup-
portThis mode enables a
technician to adjust some
devices faster and more
accurate by following the
indications on CONSULT-
II.x x ÐÐÐÐÐÐ
Self-diag-
nostic
resultsSelf-diagnostic results
can be read and erased
quickly.xxxxxxxÐ
Trouble
diagnostic
recordCurrent self-diagnostic
results and all trouble
diagnostic records previ-
ously stored can be read.ÐÐÐÐ x ÐÐÐ
ECU dis-
criminated
No.Classification number of
a replacement ECU can
be read to prevent an
incorrect ECU from being
installed.ÐÐÐÐ x ÐÐÐ
Data monitorInput/Output data in the
ECU (ECM) can be read.x x x xÐxÐÐ
Data monitor
(Spec.)The specified values will
be displayed when an
OK/NG jugement is diffi-
cult for the DATA MONI-
TOR items by Barchart
and Line Graph.x ÐÐÐÐÐÐÐ
DTC work
supportThis mode enables a
technician to set operat-
ing conditions to confirm
self-diagnosis status/
results.ÐÐ x ÐÐÐÐÐ
Active testDiagnostic Test Mode in
which CONSULT-II drives
some actuators apart
from the ECMs and also
shifts some parameters
in a specified range.x ÐÐ x ÐÐÐÐ
ECU (ECM)
part numberECU (ECM) part number
can be read.x x x xÐxÐÐ
Control unit
initializationAll registered ignition key
IDs in NATS components
can be initialized and
new IDs can be regis-
tered.ÐÐÐÐÐÐ x Ð
SRT & DTC
confirmationThe results of SRT (Sys-
tem Readiness Test) and
the self-diagnosis status/
results can be confirmed.x ÐÐÐÐÐÐÐ
Function
checkªRemote door unlock
functionº of IVCS system
can be checked in this
mode.ÐÐÐÐÐ x ÐÐ
CONSULT-II CHECKING SYSTEM
Function and System Application
GI-38

Diagnostic
test modeFunction ENGINEALL-
MODE
4WDA/T ABSAIR
BAGIVCS*1IVIS
(NATS)*2SMART
EN-
TRANCE
Registered
dataDisplay the VIN, etc. data
registered in the IVCS
unit.ÐÐÐÐÐ x ÐÐ
Configura-
tionIThe IVCS system can
be set up in the dem-
onstration mode to
confirm system opera-
tion.
IVarious data related to
both the Communica-
tor Response Center
contract and cellular
provider can be
written/rewritten in this
mode.ÐÐÐÐÐ x ÐÐ
REMO
CONT ID
SET UPA maximum of four IDs
(identifications) can be
registered in the memory
using the remote control-
ler. These IDs can be
also be confirmed and
erased as required.ÐÐÐÐÐÐÐ x
x: Applicable
*1: INFINITI Communicator (IVCS)
*2: IVIS (NATS) [INFINITI Vehicle Immobilizer System (Nissan Anti-Theft System)]
Nickel Metal Hydride Battery ReplacementNBGI0006S06CONSULT-II contains a nickel metal hydride battery. When replacing the battery obey the following:
WARNING:
Replace the nickel metal hydride battery with Genuine CONSULT-II battery only. Use of another bat-
tery may present a risk of fire or explosion. The battery may present a fire or chemical burn hazard if
mistreated. Do not recharge, disassemble of dispose of in fire.
Keep the battery out of reach of children and discard used battery conforming to the local regulations.
Checking EquipmentNBGI0006S07When ordering the below equipment, contact your NISSAN/INFINITI distributor.
Tool name Description
NISSAN CONSULT-II
q
1CONSULT-II unit (Tester internal soft:
Resident version 3.2.0) and accessories
q
2Program card AED99C (Version 3.0)
and UEN99A (For IVIS and IVCS)
To confirm the best combination of these
softwares, refer to CONSULT-II Operation
Manual.
SGI100A
NOTE:
IThe CONSULT-II must be used in conjunction with a program card.
CONSULT-II does not require loading (Initialization) procedure.
IBe sure the CONSULT-II is turned off before installing or removing a program card.
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CONSULT-II CHECKING SYSTEM
Function and System Application (Cont'd)
GI-39

CONSULT-II Data Link Connector (DLC) Circuit=NBGI0006S08
SOM395
INSPECTION PROCEDURENBGI0006S0801If the CONSULT-II cannot diagnose the system properly, check the following items.
Symptom Check item
CONSULT-II cannot access any
system.ICONSULT-II DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4)
(For detailed circuit, refer to EC-648, ªMIL & DATA LINK CONNECTORSº.)
ICONSULT-II (DDL) cable
CONSULT-II cannot access indi-
vidual system. (Other systems
can be accessed.)ICONSULT-II program card (Check the approprite CONSULT-II program card for the system.
Refer to GI-39.)
IPower supply and ground circuit for the control unite of the system
(For detailed circuit, refer to wiring diagram for each system.)
IOpen or short circuit between the system and CONSULT-II DLC
(For detailed circuit, refer to wiring diagram for each system.)
CONSULT-II CHECKING SYSTEM
CONSULT-II Data Link Connector (DLC) Circuit
GI-40

NBGI0007
Model VariationNBGI0007S01
Destination Body GradeEngine VQ35DE
Transmission RE4R01A (Automatic)
Differential carrierFront R200A
(4WD only)Rear H233B
Transfer ATX14A
U.S.A.
Wide LE 4-door2WD JLJULVAR50EUA
4WDJLJWLVAR50EUA
CanadaJLJWLVAR50ENA
PREFIX AND SUFFIX DESIGNATIONSNBGI0007S0101
SGI995-B
Identification NumberNBGI0007S02
SGI948-A
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IDENTIFICATION INFORMATION
Model Variation
GI-41

VEHICLE IDENTIFICATION NUMBER ARRANGEMENTNBGI0007S0201
SGI068AC
IDENTIFICATION PLATENBGI0007S0202
MGI039A
IDENTIFICATION INFORMATION
Identification Number (Cont'd)
GI-42

SGI136A
ENGINE SERIAL NUMBERNBGI0007S0203
MGI042A
AUTOMATIC TRANSMISSION NUMBERNBGI0007S0204
MGI043A
TRANSFER SERIAL NUMBERNBGI0007S0205
DimensionsNBGI0007S03Unit: mm (in)
Wagon
VQ35DE
Overall length 4,650 (183.1)
Overall width 1,840 (72.4)
Overall height1,730 (68.1)
1,795 (70.7)*
Front tread 1,540 (60.6)
Rear tread 1,545 (60.8)
Wheelbase 2,700 (106.3)
*: With luggage rack
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IDENTIFICATION INFORMATION
Identification Number (Cont'd)
GI-43

Wheels & TiresNBGI0007S04
Grade Road wheel/offset mm (in) Tire Spare tire size
LE17 x 8JJ Aluminum/20 (0.79)
16 x 7JJ Aluminum/20 (0.79)*P245/65R17 105S
P245/70R16 106S*P245/65R17 105S
* Option for 2WD model
IDENTIFICATION INFORMATION
Wheels & Tires
GI-44

NBGI0008
WARNING:
INever get under the vehicle while it is supported only by
the jack. Always use safety stands to support the frame
when you have to get under the vehicle.
IPlace wheel chocks at both front and back of the wheels
on the ground.
Screw JackNBGI0008S01
SGI927
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LIFTING POINTS AND TOW TRUCK TOWING
GI-45