Front end INFINITI FX35 2004 Owner's Manual

PRECAUTIONS
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Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AJS001BM
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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
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:

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.

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.

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.
Precautions for Working with HFC-134a (R-134a)AJS0013V
WARNING:

CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants
are mixed and compressor malfunction is likely to occur, refer to “CONTAMINATED REFRIGER-
ANT” below. To determine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use
Refrigerant Recovery/Recycling Recharging equipment and Refrigerant Identifier.

Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) compo-
nents. If lubricant other than that specified is used, compressor malfunction is likely to occur.

The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The fol-
lowing handling precautions must be observed:
–When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
–When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possi-
ble to minimize the entry of moisture into system.
–Only use the specified lubricant from a sealed container. Immediately reseal containers of lubri-
cant. Without proper sealing, lubricant will become moisture saturated and should not be used.
–Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Remove HFC-134a (R-134a) from the A/C system, using certified service equipment meet-
ing requirements of SAE J-2210 [HFC-134a (R-134a) recycling equipment], or J-2209 [HFC-134a (R-
134a) recovery equipment]. If accidental system discharge occurs, ventilate work area before
resuming service. Additional health and safety information may be obtained from refrigerant and
lubricant manufacturers.
–Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam parts.
Damage may result.
CONTAMINATED REFRIGERANT
If a refrigerant other than pure HFC-134a ( R-134a) is identified in a vehicle, your options are:

Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant
into the atmosphere.

Explain that recovery of the contaminated refrigerant could damage your service equipment and refriger-
ant supply.

Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.

ATC-16
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
Precautions for Leak Detection DyeAJS00141

The A/C system contains a fluorescent leak detection dye used for locating refrigerant leaks. An ultraviolet
(UV) lamp is required to illuminate the dye when inspecting for leaks.

Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of
the fluorescent dye.

The fluorescent dye leak detector is not a replacement for an electronic refrigerant leak detector. The fluo-
rescent dye leak detector should be used in conjunction with an electronic refrigerant leak detector to (J-
41995) pin-point refrigerant leaks.

For your safety and your customer′s satisfaction, read and follow all manufacture′s operating instructions
and precautions prior to performing the work.

A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal
should only be repaired after confirming the leak with an electronic refrigerant leak detector (J-41995).

Always remove any remaining dye from the leak area after repairs are complete to avoid a misdiagnosis
during a future service.

Do not allow dye to come into contact with painted body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluorescent dye left on a surface for an extended period
of time cannot be removed.

Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).

Do not use more than one refrigerant dye bottle (1/4 ounce /7.4 cc) per A/C system.

Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R-12) A/C systems are different. Do not use
HFC-134a (R-134a) leak detection dye in CFC-12 (R-12) A/C system or CFC-12 (R-12) leak detector dye
in HFC-134a (R-134a) A/C system or A/C system damage may result.

The fluorescent properties of the dye will remain for over three (3) years unless a compressor malfunction
occurs.
IDENTIFICATION
NOTE:
Vehicles with factory installed fluorescent dye have a green label.
Vehicles without factory installed fluorescent dye have a blue label.
IDENTIFICATION LABEL FOR VEHICLE
Vehicles with factory installed fluorescent dye have this identification
label on the front side of hood.
Wiring Diagrams and Trouble DiagnosisAJS00142
When you read wiring diagrams, refer to the following:

GI-15, "How to Read Wiring Diagrams" in GI section.

PG-4, "Wiring Diagram - POWER -" in PG section.
When you perform trouble diagnosis, refer to the following:

GI-11, "How to Follow Trouble Diagnoses" in GI section.

GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.
SHA436FA

PRECAUTIONS
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AV
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007X5
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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
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:

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.

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.

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.
Wiring Diagrams and Trouble DiagnosisAKS007X6
When reading wiring diagrams, refer to the following:

Refer to GI-15, "How to Read Wiring Diagrams" .
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
When performing trouble diagnosis, refer to the following:

Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .
Refer to GI-27, "
How to Perform Efficient Diagnosis for an Electrical Incident" .

AUDIO
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Revision: 2004 November 2004 FX35/FX45
AUDIOPFP:28111
System DescriptionAKS00BMM
BASE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to A/C and AV switch terminal 1 and

to display control unit terminal 1 (with navigation system) or display unit terminal 1 (without navigation sys-
tem).
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

to A/C and AV switch terminal 2 and

to display control unit terminal 10 (with navigation system) or display unit terminal 2 (without navigation
system).
Ground is supplied through the case of the audio unit.
Ground is also supplied

to A/C and AV switch terminal 5

to display control unit terminal 3 and 13 (with navigation system)

to display terminal 1 (with navigation system)

to display unit terminal 6 and 15 (without navigation system)

through body ground M35, M45 and M85

to option connector for satellite radio receiver terminal 10

through body ground B210 and B203.
Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pushed to audio switch, it sends audio signal to audio unit.
Then audio signals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear door speaker LH and RH

to terminals 1 and 2 of instrument speaker LH and RH.
When one of audio steering wheel switch is pushed to volume up, seek up, or mode ON, resistance in steering
switch circuit changes depending on which button is pushed.
When one of audio steering wheel switch is pushed to volume down, seek down, or power ON, resistance in
audio steering wheel switch circuit changes depending on which button is pushed.
BOSE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to woofer terminal 1

to A/C and AV switch terminal 1 and

to display control unit terminal 1 (with navigation system) or display unit terminal 1 (without navigation sys-
tem),

through 20A fuse [No.17, located in the fuse block (J/B)]

to BOSE speaker amp. terminal 1.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

AV-8
AUDIO
Revision: 2004 November 2004 FX35/FX45

to A/C and AV switch terminal 2 and

to display control unit terminal 10 (with navigation system) or display unit terminal 2 (without navigation
system).
Ground is supplied through the case of the audio unit.
Ground is also supplied

to BOSE speaker amp. terminal 17

to woofer terminal 2

to option connector for satellite radio receiver terminal 10

through body ground B203 and B210,

to A/C and AV switch terminal 5

to display control unit terminal 3 and 13 (with navigation system)

to display terminal 1 (with navigation system)

to display unit terminal 6 and 15 (without navigation system)

through body ground M35, M45 and M85,
Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pushed to audio switch, it send audio signal to audio unit.
Then audio signals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29, and 30.
Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied

through BOSE speaker amp. terminals 2, 3, 4, 9,10,11,12, 13, 14, 15, 16, 18, 19 and 20

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear door speaker LH and RH

to terminals 1 and 2 of tweeter LH and RH.

to terminals 1 and 2 of instrument speaker LH, RH, and CENTER,

to terminals 7 and 8 of woofer.
When one of audio steering wheel switch is pushed to volume up, seek up, or mode ON, resistance in audio
steering wheel switch circuit changes depending on which button is pushed.
When one of audio steering wheel switch is pushed to volume down, seek down, or power ON, resistance in
audio steering wheel switch circuit changes depending on which button is pushed.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.

BCS-2
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007KR
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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
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:

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.

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.

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.

BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status

With ignition switch ON, CAN communicates with other control units normally.

Control by BCM is being operated properly.

When ignition switch is OFF, switching to sleep mode is possible.

Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2. Sleep transient status

This status shuts down CAN communication when ignition switch is turned OFF.

It transmits sleep request signal to IPDM E/R and combination meter.

Two seconds after CAN communication of all control units stops, CAN communication switches to inac-
tive status.
3. CAN communication inactive status

With ignition switch OFF, CAN communication is not active.

With ignition switch OFF, control performed only by BCM is active.

Three seconds after CAN communication of all control units stops, CAN communication switches to
inactive status.
4. Sleep status

BCM is activated with low current consumption mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state.
–Key switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (LH, RH)
–Back door opener switch
–Combination switch (passing, lighting switch 1st position, Front fog lamp)
–Key fob (lock/unlock signal)
–Key cylinder switch

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
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SECTION BL
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Revision: 2004 November 2004 FX35/FX45
BODY, LOCK & SECURITY SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Work ................................................ 5
Wiring Diagnosis and Trouble Diagnosis ................. 6
PREPARATION ........................................................... 7
Special Service Tools ............................................... 7
Commercial Service Tools ........................................ 7
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 8
Work Flow ................................................................ 8
CUSTOMER INTERVIEW ..................................... 8
DUPLICATE THE NOISE AND TEST DRIVE ....... 9
CHECK RELATED SERVICE BULLETINS ........... 9
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 9
REPAIR THE CAUSE ........................................... 9
CONFIRM THE REPAIR ..................................... 10
Generic Squeak and Rattle Troubleshooting ......... 10
INSTRUMENT PANEL ........................................ 10
CENTER CONSOLE ........................................... 10
DOORS ............................................................... 10
TRUNK ................................................................. 11
SUNROOF/HEADLINING .................................... 11
SEATS .................................................................. 11
UNDERHOOD ...................................................... 11
Diagnostic Worksheet ............................................ 12
HOOD ....................................................................... 14
Fitting Adjustment .................................................. 14
LONGITUDINAL AND LATERAL CLEARANCE
ADJUSTMENT .................................................... 14
FRONT END HEIGHT ADJUSTMENT ............... 14
SURFACE HEIGHT ADJUSTMENT ................... 14
Removal and Installation of Hood Assembly .......... 15
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
Removal and Installation of Hood Lock Control ..... 16REMOVAL ........................................................... 16
INSTALLATION ................................................... 17
Hood Lock Control Inspection ................................ 17
RADIATOR CORE SUPPORT .................................. 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSTALLATION ................................................... 20
FRONT FENDER ...................................................... 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 21
POWER DOOR LOCK SYSTEM .............................. 22
Component Parts and Harness Connector Location ... 22
Component Parts and Harness Connector Location ... 23
System Description ................................................. 23
OUTLINE ............................................................. 24
CAN Communication System Description .............. 25
CAN Communication Unit ....................................... 25
Schematic (With Intelligent Key) ............................. 26
Wiring Diagram -D/LOCK- (With Intelligent Key) .... 27
FIG. 1 ................................................................... 27
FIG. 2 ................................................................... 28
FIG. 3 ................................................................... 29
FIG. 4 ................................................................... 30
FIG. 5 ................................................................... 31
Schematic (Without Intelligent Key) ........................ 32
Wiring Diagram -D/LOCK- (Without Intelligent Key) ... 33
FIG. 6 ................................................................... 33
FIG. 7 ................................................................... 34
FIG. 8 ................................................................... 35
FIG. 9 ................................................................... 36
Terminals and Reference Value for BCM ............... 37
Terminals and Reference Value for Intelligent Key
Unit (With Intelligent Key System) .......................... 37
Work Flow ............................................................... 37
Preliminary Check .................................................. 38
FUSE AND FUSIBLE LINK CHECK .................... 38
CONSULT-II Function ............................................. 39
CONSULT-II INSPECTION PROCEDURE .......... 39
CONSULT-II APPLICATION ITEMS .................... 40

BL-4Revision: 2004 November 2004 FX35/FX45Diagnostic Procedure 5 ........................................205
VEHICLE SECURITY HEADLAMP ALARM
CHECK ..............................................................205
Diagnostic Procedure 6 ........................................205
DOOR LOCK AND UNLOCK SWITCH CHECK .205
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ......................................................................206
Component Parts and Harness Connector Location .206
System Description ...............................................206
DESCRIPTION ..................................................206
SECURITY INDICATOR ....................................207
System Composition .............................................208
ECM Re-communicating Function ........................208
Wiring Diagram – NATS – .....................................209
MODELS WITH INTELLIGENT KEY SYSTEM . 209
MODELS WITHOUT INTELLIGENT KEY SYS-
TEM ...................................................................211
Terminals and Reference Value for Steering Lock
Unit/with Intelligent Key System ...........................212
Terminals and Reference Value for Intelligent Key
Unit/with Intelligent Key System ...........................212
Terminals and Reference Value for BCM ..............213
CONSULT-II ..........................................................214
CONSULT-II INSPECTION PROCEDURE ........214
CONSULT-II DIAGNOSTIC TEST MODE FUNC-
TION ..................................................................215
HOW TO READ SELF-DIAGNOSTIC RESULTS .215
NATS SELF-DIAGNOSTIC RESULT ITEM
CHART ..............................................................216
Diagnosis Procedure ............................................217
WORK FLOW ....................................................217
Trouble Diagnosis Symptom Chart .......................218
Security Indicator Inspection ................................218
Diagnostic Procedure 1 ........................................219
Diagnostic Procedure 2 ........................................220
Diagnostic Procedure 3 ........................................221
Diagnostic Procedure 4 ........................................222
Diagnostic Procedure 5 ........................................223
Diagnostic Procedure 6 ........................................224
Diagnostic Procedure 7 ........................................226
Removal and Installation NATS Antenna Amp. ....227
REMOVAL .........................................................227
INSTALLATION ..................................................227
INTEGRATED HOMELINK TRANSMITTER ...........228Wiring Diagram —TRNSCV— ..............................228
Trouble Diagnoses ................................................229
DIAGNOSTIC PROCEDURE .............................229
BODY REPAIR ........................................................231
Body Exterior Paint Color ......................................231
Body Component Parts .........................................232
UNDERBODY COMPONENT PARTS ...............232
BODY COMPONENT PARTS ............................234
Corrosion Protection .............................................236
DESCRIPTION ..................................................236
ANTI-CORROSIVE WAX ...................................237
UNDERCOATING ..............................................238
STONE GUARD COAT ......................................239
Body Sealing .........................................................240
DESCRIPTION ..................................................240
Body Construction .................................................243
BODY CONSTRUCTION ...................................243
Body Alignment .....................................................244
BODY CENTER MARKS ...................................244
PANEL PARTS MATCHING MARKS .................245
DESCRIPTION ..................................................246
ENGINE COMPARTMENT ................................247
UNDERBODY ....................................................249
PASSENGER COMPARTMENT ........................251
REAR BODY ......................................................253
Handling Precautions For Plastics ........................255
HANDLING PRECAUTIONS FOR PLASTICS ..255
LOCATION OF PLASTIC PARTS ......................256
Precautions In Repairing High Strength Steel .......258
HIGH STRENGTH STEEL (HSS) USED IN NIS-
SAN VEHICLES .................................................258
Replacement Operations ......................................261
DESCRIPTION ..................................................261
HOODLEDGE ....................................................264
FRONT SIDE MEMBER ....................................266
FRONT SIDE MEMBER (PARTIAL REPLACE-
MENT) ................................................................268
FRONT PILLAR .................................................270
CENTER PILLAR ...............................................272
OUTER SILL ......................................................274
REAR FENDER .................................................276
REAR PANEL ....................................................278
REAR END CROSSMEMBER ...........................280
REAR FLOOR REAR .........................................282
REAR SIDE MEMBER EXTENSION .................285

PRECAUTIONS
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Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AIS004L9
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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
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:

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.

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.

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.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectAIS005WT
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for WorkAIS004LA

After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check
their operation.

Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.