2008 INFINITI FX35 wiring

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CONTENTS
BODY, LOCK & SECURITY SYSTEM
SERVICE INFORMATION .. ..........................4
DTC INDEX ..................................................... .....4
INTELLGENT KEY UNIT U1000 ...............................4
INTELLGENT KEY UNIT B2013-B2014 ............. ......4
ECM P1610-P1615 ...................................................4
PRECAUTIONS ...................................................5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
5
Precaution for Work ..................................................5
PREPARATION ...................................................6
Special Service Tool ........................................... ......6
Commercial Service Tool ..........................................6
SQUEAK AND RATTLE TROUBLE DIAGNO-
SIS .......................................................................
7
Work Flow ........................................................... ......7
Generic Squeak and Rattle Troubleshooting ............9
Diagnostic Worksheet .............................................11
HOOD .................................................................13
Fitting Adjustment ............................................... ....13
Removal and Installation of Hood Assembly ...........14
Removal and Installation of Hood Lock Control ......15
Hood Lock Control Inspection ............................. ....16
RADIATOR CORE SUPPORT ...........................18
Removal and Installation ..................................... ....18
FRONT FENDER ................................................20
Removal and Installation ..................................... ....20
POWER DOOR LOCK SYSTEM ........................21
Component Parts and Harness Connector Loca-
tion ...................................................................... ....
21
System Description .................................................22
CAN Communication System Description ...............23
CAN Communication Unit .................................... ....23
Schematic/With Intelligent Key ................................24
Wiring Diagram - D/LOCK -/With Intelligent Key .....25
Schematic/Without Intellig ent Key ...........................30
Wiring Diagram - D/LOCK -/Without Intelligent
Key ...................................................................... ....
31
Terminal and Reference Value for BCM ..................35
Terminal and Reference Value for Intelligent Key
Unit (With Intelligent Key System) ...........................
35
Work Flow ................................................................36
CONSULT-III Function (BCM) .................................36
Trouble Diagnosis Chart by Symptom .....................37
Check BCM Power Supply and Ground Circuit .......37
Check Door Switch ..................................................38
Check Key Switch ....................................................42
Check Door Lock and Unlock Switch ......................43
Check Door Lock Actuator (Driver Side) .................45
Check Door Lock Actuator (Passenger Side and
Rear LH/RH) ............................................................
45
Check Fuel Lid Lock Actuator ..................................46
Check Front Door Key Cylinder Switch (Lock) ........47
Check Front Door Key Cylinder Switch (Unlock) .....47
Check Select Unlock Relay Circuit ..........................48
REMOTE KEYLESS ENTRY SYSTEM .............50
Component Parts and Harness Connector Loca-
tion ...........................................................................
50
System Description ..................................................50
CAN Communication System Description ...............53
CAN Communication Unit ........................................53
Schematic ................................................................54
Wiring Diagram - KEYLES - ....................................55
Terminal and Reference Value for BCM ..................58
Terminal and Reference Value for IPDM E/R ..........59
CONSULT-III Function (BCM) .................................60
Work Flow ................................................................62
Trouble Diagnosis Chart by Symptom .....................62
Check Key Fob Battery and Function ......................63
Check ACC Switch ..................................................64
Check Door Switch ..................................................65
Check Key Switch ....................................................68
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BL-2
Check Remote Keyless Entry Receiver ..................69
Check IPDM E/R Operation ....................................71
Check Hazard Warning Lamp Function ..................72
Check Horn Function ..............................................72
Check Headlamp Function .....................................72
Check Map Lamp and Ignition Keyhole Illumina-
tion Function ...........................................................
72
ID Code Entry Procedure .......................................73
Removal and Installation of Remote keyless Entry
receiver ................................................................ ...
75
Key Fob Battery Replacement ................................75
INTELLIGENT KEY SYSTEM ............................76
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
76
System Description .................................................78
CAN Communication System Description ..............83
CAN Communication Unit .......................................84
Schematic ...............................................................84
Wiring Diagram - I/KEY - ........................ ................86
Terminal and Reference Value for INTELLIGENT
KEY UNIT ........... ................................. ...................
99
Terminal and Reference Value for Steering Lock
unit ....................................................................... ..
101
Terminal and Reference Value for BCM ................101
Terminal and Reference Value for IPDM E/R ........102
Diagnosis Procedure .............................................103
CONSULT-III Functions (INTELLIGENT KEY) ......103
CONSULT-III Application Item ............................. ..104
List of Operation Related Parts .............................105
Trouble Diagnosis Symptom Chart ........................106
Check CAN Communication System Inspection ....111
Check Intelligent Key Unit Power Supply and
Ground Circuit ..................................................... ..
111
Check Key Switch (Intelligent Key Unit Input) .......112
Check Key Switch (BCM Input) ........................... ..113
Check Ignition Knob Switch ...................................114
Check Door Switch ................................................115
Check Unlock Sensor ............................................117
Check Door Request Switch ..................................119
Check Intelligent Key Warning Buzzer ..................120
Check Outside Key Antenna ............................... ..121
Check Inside Key Antenna ....................................123
Check Steering Lock Unit ......................................124
Check Stop Lamp Switch ......................................126
Check Park Position Switch ...................................126
Check Select Unlock Relay ...................................128
Check Hazard Function .........................................128
Check Horn Function .............................................129
Check Headlamp Function ....................................129
Check IPDM E/R Operation ...................................129
Removal and Installation of Intelligent Key Unit ....130
Intelligent Key Battery Re placement .....................130
DOOR .............................................................. .131
Fitting Adjustment ................................................ ..131
Removal and Installation of Front Door .................132
Removal and Installation of Rear Door ..................133
Removal and Installation of Door Weatherstrip .....134
FRONT DOOR LOCK .......................................135
Removal and Installation ...................................... .135
REAR DOOR LOCK .........................................138
Removal and Installation ...................................... .138
BACK DOOR .................................................. ..141
Fitting Adjustment ................................................ .141
Back Door Assembly .............................................141
Removal and Installation of Back Door Striker .....142
Removal and Installation of Back Door Stay .........143
Removal and Installation of Dave Tail Male & Fe-
male ..................................................................... .
144
Removal and Installation of Back Door Weather-
strip .......................................................................
144
BACK DOOR LOCK ASSEMBLY ....................146
Removal and Installation of Back Door Lock &
Closure Assembly ................................................ .
146
Removal and Installation of Back Door Opener
Switch ...................................................................
146
Disassembly and Assembly ..................................147
BACK DOOR AUTO CLOSURE SYSTEM ......148
Component Parts and Harness Connector Loca-
tion ....................................................................... .
148
System Description ...............................................148
Wiring Diagram - B/CLOS - ...................................150
Terminal and Reference Value for Back Door Clo-
sure Control Unit ...................................................
152
Work Flow .............................................................153
Preliminary Check .................................................153
Trouble Diagnosis Chart by Symptom ..................153
Check Back Door Closure Control Unit Power
Supply and Ground Circuit ....................................
153
Check Half-Latch Switch .......................................154
Check Close Switch ..............................................155
Check Open Switch ..............................................156
Check Back Door Opener Switch (With Intelligent
Key) ...................................................................... .
157
Check Back Door Opener Switch (Without Intelli-
gent Key) ...............................................................
159
Check Unlock Sensor (Without Intelligent Key) ....160
Check Closure Motor ........................................... .161
Removal and Installation of Back Door Closer
Control Unit ...........................................................
162
VEHICLE SECURITY (THEFT WARNING)
SYSTEM ...........................................................
163
Component Parts and Harness Connector Loca-
tion ....................................................................... .
163
System Description ...............................................164
CAN Communication System Description ............166
CAN Communication Unit .....................................166
Schematic .............................................................167
Wiring Diagram - VEHSEC - .................................168
Terminal and Reference Value for BCM ...............173
Terminal and Reference Value for IPDM E/R .......174
CONSULT-III Function ..........................................174
Trouble Diagnosis .................................................176
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Preliminary Check ...............................................
..
177
Trouble Diagnosis Symptom Chart .......................177
Diagnosis Procedure 1 ..........................................178
Diagnosis Procedure 2 ..........................................182
Diagnosis Procedure 3 ..........................................183
Diagnosis Procedure 4 ..........................................183
Diagnosis Procedure 5 ..........................................183
Diagnosis Procedure 6 ..........................................184
IVIS (INFINITI VEHICLE IMMOBILIZER SYS-
TEM-NATS) ......................................................
185
Component Parts and Harness Connector Loca-
tion ...................................................................... ..
185
System Description ...............................................185
System Composition .............................................186
ECM Re-Communicating Function ........................187
Wiring Diagram - NATS - ......................................188
Terminal and Reference Value for Steering Lock
Unit/with Intelligent Key System ............................
191
Terminal and Reference Value for Intelligent Key
Unit/with Intelligent Key System ............................
191
Terminal and Reference Value for BCM ............. ..192
CONSULT-III Function ..........................................192
Diagnosis Procedure .............................................194
Trouble Diagnosis Symptom Chart ...................... ..195
Security Indicator Inspection .................................195
Diagnosis Procedure 1 ..........................................195
Diagnosis Procedure 2 ..........................................197
Diagnosis Procedure 3 ..........................................197
Diagnosis Procedure 4 ..........................................197
Diagnosis Procedure 5 ..........................................198
Diagnosis Procedure 6 ..........................................200
Removal and Installation NATS Antenna Amp ......201
INTEGRATED HOMELINK TRANSMITTER ..202
Wiring Diagram - TRNSCV - ..................................202
Trouble Diagnosis ..................................................202
BODY REPAIR ................................................204
Body Exterior Paint Color ......................................204
Body Component Parts .........................................205
Corrosion Protection ..............................................208
Body Sealing .........................................................211
Body Construction .................................................215
Body Alignment .....................................................215
Handling Precaution for Plastics ............................225
Precaution in Repairing High Strength Steel .........228
Replacement Operation .........................................230
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PRECAUTIONSBL-5
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612892
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000001612889
NOTE:
 This Procedure is applied only to models with Intell igent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
 Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
 Always use CONSULT-III 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 pow er 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-III.
Precaution for WorkINFOID:0000000001327777
 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.
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SQUEAK AND RATTLE TROUBLE DIAGNOSISBL-9
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Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingINFOID:0000000001327781
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noi se. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or ra ttle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation pr ocedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the ar eas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
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POWER DOOR LOCK SYSTEMBL-23
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When the front door switch (passenger side) is ON (door is OPEN), ground is supplied
 to BCM terminal 12
 through front door switch (passenger side) terminal 1
 through front door switch (passenger side) case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
 to BCM terminal 63
 through front door switch LH terminal 1
 through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
 to BCM terminal 13
 through front door switch RH terminal 1
 through rear door switch RH case ground.
When the back door switch is ON (door is OPEN), ground is supplied
 to BCM terminal 58
 through back door closure motor (door switch) terminal 7 and 8
 through grounds B15 and B45.
OUTLINE
Functions Available by Operating the Door Lock and Unlo ck Switches on Driver's Door and Passenger's Door
 Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are locked.
 Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are unlocked.
Functions Available by Operating th e Key Cylinder Switch on Driver's
 Interlocked with the locking operation of door key cyli nder, door lock actuators of all doors and fuel lid lock
actuator are locked.
Select Unlo ck Operation
 When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.
 When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock
actuators on all doors are unlocked.
Select unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET”\
mode in “WORK SUP-
PORT”. Refer to BL-36, "
CONSULT-III Function (BCM)".
Select unlock operation mode can be changed also on the display.
Key Reminder Door System
When door lock and unlock switch is operated to lock doors with ignition key put in key cylinder and any door
open, all door lock actuators are locked and then unlocked.
Key reminder door mode can be changed using “WOR K SUPPORT” mode in “ANTI-LOCK OUT SET”.
Refer to BL-36, "
CONSULT-III Function (BCM)".
CAN Communication System DescriptionINFOID:0000000001327791
CAN (Controller Area Network) is a serial communication li ne for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001327792
Refer to LAN-43, "CAN System Specification Chart".
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POWER DOOR LOCK SYSTEMBL-25
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Wiring Diagram - D/LOCK -/With Intelligent KeyINFOID:0000000001327794
TIWM1649E
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POWER DOOR LOCK SYSTEMBL-31
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Wiring Diagram - D/LOCK -/Without Intelligent KeyINFOID:0000000001327796
TIWM1653E
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