2006 INFINITI FX35 horn

ABCDEFGHIJKMLQUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System
(SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Tele-
phone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: December 2005
Revision: December 2006

BL-2Revision: 2006 December 2006 FX35/FX45 Check Front Door Key Cylinder Switch (Lock) ....
... 51
Check Front Door Key Cylinder Switch (Unlock) . ... 52
Check Select Unlock Relay Circuit ...................... ... 53
REMOTE KEYLESS ENTRY SYSTEM .................. ... 54
Component Parts and Harness Connector Location ... 54
System Description .............................................. ... 55
INPUTS ............................................................ ... 55
OPERATED PROCEDURE .............................. ... 56
CAN Communication System Description ........... ... 57
CAN Communication Unit .................................... ... 57
Schematic ............................................................ ... 58
Wiring Diagram — KEYLES — ............................ ... 59
Terminals and Reference Value for BCM ............. ... 62
Terminals and Reference Value for IPDM E/R ..... ... 63
CONSULT-II Function (BCM) ............................... ... 64
CONSULT-II INSPECTION PROCEDURE ....... ... 64
CONSULT-II APPLICATION ITEMS ................. ... 64
Work Flow ............................................................ ... 66
Trouble Diagnosis Chart by Symptom ................. ... 67
Check Key Fob Battery and Function .................. ... 69
Check ACC Switch .............................................. ... 70
Check Door Switch .............................................. ... 71
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) .......................................................... ... 71
CHECK BACK DOOR SWITCH ....................... ... 73
Check Key Switch ................................................ ... 75
Check Remote Keyless Entry Receiver ............... ... 76
Check IPDM E/R Operation ................................. ... 79
Check Hazard Warning Lamp Function ............... ... 80
Check Horn Function ........................................... ... 80
Check Headlamp Function .................................. ... 80
Check Map Lamp and Ignition Keyhole Illumination
Function ............................................................... ... 80
ID Code Entry Procedure .................................... ... 81
KEY FOB ID SET UP WITH CONSULT-II ........ ... 81
KEY FOB ID SET UP WITHOUT CONSULT-II . ... 83
Removal and Installation of Remote keyless Entry
receiver ................................................................ ... 84
REMOVAL ........................................................ ... 84
INSTALLATION ................................................. ... 84
Key Fob Battery Replacement ............................. ... 85
INTELLIGENT KEY SYSTEM ................................ ... 86
Component Parts and Harness Connector Location ... 86
System Description .............................................. ... 88
DOOR LOCK FUNCTION ................................ ... 88
REMOTE CONTROL ENTRY FUNCTIONS ..... ... 89
ENGINE STARTUP FUNCTION ....................... ... 90
WARNING AND ALARM FUNCTION ............... ... 91
CHANGE SETTINGS FUNCTION .................... ... 94
INTELLIGENT KEY REGISTRATION ............... ... 94
STEERING LOCK UNIT REGISTRATION ....... ... 94
CAN Communication System Description ........... ... 95
CAN Communication Unit .................................... ... 95
Schematic ............................................................ ... 96
Wiring Diagram — I/KEY — ................................ ... 98
Terminals and Reference Value for INTELLIGENT
KEY UNIT ............................................................ ..111
Terminals and Reference Value for Steering Lock
unit ....................................................................... .113 Terminals and Reference Value for BCM .............
.113
Terminals and Reference Value for IPDM E/R ..... .114
Diagnosis Procedure ............................................ .115
WORK FLOW ................................................... .115
CONSULT-II Functions (INTELLIGENT KEY) ...... .116
CONSULT-II Start Procedure ............................... .116
CONSULT-II Application Items ............................. .116
WORK SUPPORT ............................................ .116
SELF-DIAGNOSTIC RESULTS ........................ .116
DATA MONITOR ............................................... .117
ACTIVE TEST ................................................... .117
List of Operation Related Parts ............................ .118
Trouble Diagnosis Symptom Chart ...................... .119
ALL FUNCTIONS OF THE INTELLIGENT KEY
ARE NOT OPERATING .................................... .119
REMOTE CONTROL ENTRY FUNCTION MAL-
FUNCTION ....................................................... .119
DOOR LOCK FUNCTION MALFUNCTION ...... .120
ENGINE START FUNCTION MALFUNCTION . .121
WARNING CHIME FUNCTION MALFUNCTION .121
Check CAN Communication System Inspection .. .124
Check Intelligent Key Unit Power Supply and
Ground Circuit ...................................................... .124
Check Key Switch (Intelligent Key Unit Input) ...... .125
Check Key Switch (BCM Input) ............................ .126
Check Ignition Knob Switch ................................. .127
Check Door Switch .............................................. .129
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ........................................................... .129
CHECK BACK DOOR SWITCH ........................ .130
Check Unlock Sensor .......................................... .131
Check Door Request Switch ................................ .133
Check Intelligent Key Warning Buzzer ................. .134
Check Outside Key Antenna ................................ .135
Check Inside Key Antenna ................................... .138
Check Steering Lock Unit ..................................... .139
Check Stop Lamp Switch ..................................... .141
Check Detention Switch ....................................... .142
Check Select Unlock Relay .................................. .144
Check Hazard Function ....................................... .145
Check Horn Function ........................................... .145
Check Headlamp Function ................................... .145
Check IPDM E/R Operation ................................. .145
Removal and Installation of Intelligent Key Unit ... .146
REMOVAL ......................................................... .146
INSTALLATION ................................................. .146
Intelligent Key Battery Replacement .................... .147
INTELLIGENT KEY BATTERY INSPECTION .. .147
DOOR ..................................................................... .148
Fitting Adjustment ................................................ .148
FRONT DOOR .................................................. .148
REAR DOOR .................................................... .148
STRIKER ADJUSTMENT ................................. .149
Removal and Installation of Front Door ............... .149
REMOVAL ......................................................... .149
INSTALLATION ................................................. .150
Removal and Installation of Rear Door ................ .150
REMOVAL ......................................................... .150

BL-3
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45 INSTALLATION ................................................
. 151
Removal and Installation of Door Weatherstrip ... . 151
REMOVAL ........................................................ . 151
INSTALLATION ................................................ . 151
FRONT DOOR LOCK ............................................ . 152
Removal and Installation ..................................... . 152
REMOVAL ........................................................ . 152
INSTALLATION ................................................ . 154
REAR DOOR LOCK .............................................. . 155
Removal and Installation ..................................... . 155
REMOVAL ........................................................ . 155
INSTALLATION ................................................ . 157
BACK DOOR ......................................................... . 158
Fitting Adjustment ............................................... . 158
VERTICAL/LATERAL CLEARANCE ADJUST-
MENT ............................................................... . 158
Back Door Assembly ........................................... . 158
REMOVAL ........................................................ . 158
INSTALLATION ................................................ . 159
INSPECTION ................................................... . 159
Removal and Installation of Back Door Striker .... . 159
REMOVAL ........................................................ . 159
INSTALLATION ................................................ . 159
Removal and Installation of Back Door Stay ....... . 160
REMOVAL ........................................................ . 160
INSTALLATION ................................................ . 160
Removal and Installation of Dave Tail Male &
Female ................................................................ . 160
REMOVAL ........................................................ . 160
INSTALLATION ................................................ . 161
Removal and Installation of Back Door Weatherstrip . 161
REMOVAL ........................................................ . 161
INSTALLATION ................................................ . 161
BACK DOOR LOCK ASSEMBLY ......................... . 162
Removal and Installation of Back Door Lock & Clo-
sure Assembly ..................................................... . 162
REMOVAL ........................................................ . 162
INSTALLATION ................................................ . 162
INSPECTION ................................................... . 162
Removal and Installation of Back Door Opener
Switch .................................................................. . 162
REMOVAL ........................................................ . 162
INSTALLATION ................................................ . 163
Disassembly and Assembly ................................ . 163
BACK DOOR LOCK & CLOSURE ASSEMBLY . 163
BACK DOOR AUTO CLOSURE SYSTEM ............ . 164
Component Parts and Harness Connector Location . 164
System Description ............................................. . 164
CLOSE OPERATION ....................................... . 164
NON-OPERATION CONDITION ...................... . 164
OPEN OPERATION ......................................... . 165
Wiring Diagram — B/CLOS — ............................ . 166
Terminals and Reference Value for Back Door Clo-
sure Control Unit ................................................. . 168
Work Flow ........................................................... . 169
Preliminary Check ............................................... . 169
Trouble Diagnosis Chart by Symptom ................. . 169
Check Back Door Closure Control Unit Power Sup-
ply and Ground Circuit ........................................ . 170 Check Half-Latch Switch .....................................
.170
Check Close Switch ............................................. .172
Check Open Switch ............................................. .173
Check Back Door Opener Switch (With Intelligent
Key) ..................................................................... .174
Check Back Door Opener Switch (Without Intelli-
gent Key) ............................................................. .176
Check Unlock Sensor (Without Intelligent Key) ... .178
Check Closure Motor ........................................... .179
Removal and Installation of Back Door Closer Con-
trol Unit ................................................................ .179
VEHICLE SECURITY (THEFT WARNING) SYSTEM .180
Component Parts and Harness Connector Location .180
System Description .............................................. .182
DESCRIPTION ................................................. .182
POWER SUPPLY ............................................. .183
INITIAL CONDITION TO ACTIVATE THE SYS-
TEM .................................................................. .183
VEHICLE SECURITY SYSTEM ALARM OPER-
ATION ............................................................... .184
VEHICLE SECURITY SYSTEM DEACTIVATION .184
PANIC ALARM OPERATION ........................... .184
CAN Communication System Description ........... .184
CAN Communication Unit .................................... .184
Schematic ............................................................ .185
Wiring Diagram — VEHSEC — ........................... .186
Terminals and Reference Value for BCM ............ .191
Terminals and Reference Value for IPDM E/R .... .192
CONSULT-II Function (BCM) .............................. .192
CONSULT-II START PROCEDURE ................. .192
CONSULT-II APPLICATION ITEM ................... .192
Trouble Diagnosis ................................................ .194
WORK FLOW ................................................... .194
Preliminary Check ............................................... .195
Trouble Diagnosis Symptom Chart ...................... .196
Diagnostic Procedure 1 ....................................... .197
1 – 1 DOOR SWITCH CHECK ......................... .197
1 – 2 HOOD SWITCH CHECK ......................... .199
1 – 3 BACK DOOR SWITCH CHECK .............. .201
Diagnostic Procedure 2 ....................................... .203
SECURITY INDICATOR LAMP CHECK .......... .203
Diagnostic Procedure 3 ....................................... .204
FRONT DOOR KEY CYLINDER SWITCH
CHECK ............................................................. .204
Diagnostic Procedure 4 ....................................... .204
VEHICLE SECURITY HORN ALARM CHECK . 204
Diagnostic Procedure 5 ....................................... .204
VEHICLE SECURITY HEADLAMP ALARM
CHECK ............................................................. .204
Diagnostic Procedure 6 ....................................... .204
DOOR LOCK AND UNLOCK SWITCH CHECK .204
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... .205
Component Parts and Harness Connector Location .205
System Description .............................................. .206
DESCRIPTION ................................................. .206
SECURITY INDICATOR ................................... .206
System Composition ............................................ .207
ECM Re-Communicating Function ...................... .207

BL-18
RADIATOR CORE SUPPORT
Revision: 2006 December 2006 FX35/FX45
RADIATOR CORE SUPPORTPFP:62500
Removal and InstallationNIS001LR
REMOVAL
1. Remove the front fender protector. Refer to EI-24, "Removal and Installation" .
2. Remove the front bumper. Refer to EI-14, "
Removal and Installation" .
3. Remove the ICC. Refer to ACS-75, "
REMOVAL AND INSTALLATION" .
4. Remove the headlamp. Refer to LT- 3 6 , "
Removal and Installation" .
5. Remove the washer tank. Refer to WW-37, "
Removal and Installation of Washer Tank" .
6. Remove the resonator. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" or EM-177, "AIR CLEANER
AND AIR DUCT" .
7. Remove the power steering oil cooler. Refer to PS-39, "
HYDRAULIC LINE" .
8. Remove the ambient sensor. Refer to AT C - 11 6 , "
Removal and Installation" .
9. Remove the crash zone sensor. Refer to SRS-46, "
Removal and Installation" .
10. Remove the horn connector, cooling fan connector and harness clip.
11. Remove the hood lock and disconnect hood lock control cable. Refer to BL-15, "
Removal and Installation
of Hood Lock Control" .
12. Remove the reservoir tank. Refer to CO-41, "
Removal and Installation" or CO-14, "Removal and Installa-
tion" .
13. Remove mounting blots and remove radiator core support. Remove mounting bolts with power tool.
1. Radiator core support assembly 2. Bolt 3. Bolt
4. Horn (High) 5. Air guide (RH) 6. Cooling fan
7. Air guide (LH) 8. Horn (Low)
PIIA6018E

RADIATOR CORE SUPPORT BL-19
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
14. After remove radiator core support, remove the horn, cooling fan.
INSTALLATION
Install in the reverse order of removal.

REMOTE KEYLESS ENTRY SYSTEM BL-55
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
System DescriptionNIS001MI
INPUTS
Power is supplied at all times

to BCM terminal 55

through 50A fusible link (letter M , located in the fuse and fusible link box).

to BCM terminal 42

through 15A fuse [No. 22, located in the fuse block (J/B)].

to Horn relay terminal 2

through 15A fuse (No. 34, located in the fuse and fusible link box).
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied

to BCM terminal 37

through key switch terminal 1 and 2

through 15A fuse [No. 22, located in the fuse block (J/B)].
When the ignition switch is ACC or ON, power is supplied

to BCM terminal 11

through 10A fuse [No. 6, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied

to BCM terminal 38

through 15A fuse [No. 1, located in the fuse block (J/B)].
When the front door switch (driver side) is ON (door is OPEN), ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1

through front door switch (driver side) case ground.
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 rear 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 meter terminal 13

through rear 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) terminals 7 and 8

through body grounds B15 and B45
Key fob signal is inputted to remote keyless entry receiver (the antenna of the system is built in remote keyless
entry receiver).

to BCM terminal 20

from remote keyless entry system controls operation of the
The remote keyless entry system controls operation of the

power door lock

hazard and horn reminder

auto door lock

panic alarm

keyless power window down (open)

BL-56
REMOTE KEYLESS ENTRY SYSTEM
Revision: 2006 December 2006 FX35/FX45

room lamp and key ring illumination
OPERATED PROCEDURE
Power Door Lock Operation
BCM receives a LOCK signal from key fob. BCM locks all doors with input of LOCK signal from key fob.
When an UNLOCK signal is sent from key fob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from key fob again within 5 seconds, all other door will be unlocked.
Power door lock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK SUP-
PORT” of “POWER DOOR LOCK SYSTEM”.
Refer to BL-65, "
Work Support" .
Power door lock operation mode can be changed also on the display.
Hazard and Horn Reminder
When the doors are locked or unlocked by key fob, power is supplied to hazard warning lamp and lamp flash
as follows

LOCK operation: C mode (flash twice) or S mode (flash twice)

UNLOCK operation: C mode (flash once) or S mode (do not flash)
BCM outputs to IPDM E/R for horn reminder signal as DATA LINE (CAN H line and CAN L line).
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
Operating function of hazard and horn reminder
Hazard and horn reminder do not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “MULTI ANSWER BACK SET” mode in “WORK SUPPORT”.
Refer to BL-65, "
Work Support" .
Without CONSULT-II
When LOCK and UNLOCK signals are sent from the key fob for more than 2 seconds at the same time, the
hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:
Auto Door Lock Operation
Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute
after the unlock signal is sent from the key fob:

when door switch is turned ON for open.

when the key switch is turned ON.

when the lock signal is sent from the key fob.
Auto door lock mode can be changed using “AUTO LOCK SET” mode in “WORK SUPPORT”.
Refer to BL-65, "
Work Support" .
Auto door lock mode can be changed also on the display.
C mode S mode
Remote controller
operation Lock Unlock Lock Unlock
Hazard warning lamp
flash Twice Once Twice —
Horn sound Once — — —
SEL153WA

REMOTE KEYLESS ENTRY SYSTEM BL-57
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), BCM turns on and off horn and
headlamp intermittently with input of PANIC ALARM signal from key fob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from key fob.
Panic alarm operation mode can be changed using “PANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to BL-65, "
Work Support" .
For detailed description, refer to BL-180, "
VEHICLE SECURITY (THEFT WARNING) SYSTEM" .
Keyless Power Window Down (Open) Operation
When key fob unlock switch is turned ON with ignition switch OFF, and key fob unlock switch is detected to be
on continuously for 3 seconds, the driver's door and passenger's door power windows are simultaneously
opened.
Power window is operated to open and the operation continues as long as the key fob unlock switch is
pressed.
Keyless power window down operation mode can be changed using “PW DOWN SET” mode in “WORK SUP-
PORT”. Refer to BL-65, "
Work Support"
Room Lamp and Ignition Key Ring Illumination Operation
When the following conditions come:

condition of interior lamp switch is DOOR position;

door switch OFF (when all the doors are closed);
Remote keyless entry system turns on interior lamp (for 30 seconds) with input of UNLOCK signal from key
fob. For detailed description, refer to LT- 1 5 6 , "
INTERIOR ROOM LAMP" .
CAN Communication System DescriptionNIS001MJ
CAN (Controller Area Network) is a serial communication line 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 UnitNIS001MK
Refer to LAN-32, "CAN Communication Unit" .