2008 INFINITI FX35 horn

ABCDEFGHIJKLQUICK 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-
mentsLMAINTENANCEMAMaintenanceEdition: April 2007
Revision: April 2007

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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BL-18
< SERVICE INFORMATION >
RADIATOR CORE SUPPORT
RADIATOR CORE SUPPORT
Removal and InstallationINFOID:0000000001327787
REMOVAL
1. Remove the front fender protector. Refer to EI-24, "Component Parts Location".
2. Remove the front bumper. Refer to EI-14, "
Component Parts Location".
3. Remove the ICC. Refer to ACS-65
.
4. Remove the headlamp. Refer to LT-30, "
Removal and Installation".
5. Remove the washer tank. Refer to WW-28, "
Removal and Installation of Washer Tank".
6. Remove the resonator. Refer to EM-17
or EM-173.
7. Remove the power steering oil cooler. Refer to PS-37
.
8. Remove the ambient sensor. Refer to ATC-99, "
Removal and Installation".
9. Remove the crash zone sensor. Refer to SRS-42, "
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-40, "
Removal and Installation" or CO-13, "Removal and Installa-
tion".
13. Remove mounting blots and remove radiator core support. Remove mounting bolts with power tool.
14. After remove radiator core suppor t, remove the horn, cooling fan.
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
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REMOTE KEYLESS ENTRY SYSTEMBL-51
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
 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 receiv er (the antenna of the system is built in remote keyless
entry receiver).
 to BCM terminal 20
 from remote keyless entry syst em 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)
 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-60, "
CONSULT-III Function (BCM)".
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
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BL-52
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
 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-III
Hazard and horn reminder can be changed using “MULTI ANSWER BACK SET” mode in “WORK SUPPORT”.
Refer to BL-60, "
CONSULT-III Function (BCM)".
Without CONSULT-III
When LOCK and UNLOCK signals are sent from the key f ob for more than 2 seconds at the same time, the
hazard and horn reminder mode is changed and hazard warn ing 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 “AUT O LOCK SET” mode in “WORK SUPPORT”.
Refer to BL-60, "
CONSULT-III Function (BCM)".
Auto door lock mode can be changed also on the display.
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 “P ANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to BL-60, "
CONSULT-III Function (BCM)".
For detailed description, refer to BL-163
.
Keyless Power Window Down (Open) Operation
When key fob unlock switch is turned ON with ignition sw itch 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 cont inues as long as the key fob unlock switch is
pressed.
Keyless power window down operation mode can be changed using “PW DOWN SE\
T” mode in “WORK SUP-
PORT”. Refer to BL-60, "
CONSULT-III Function (BCM)"
Room Lamp and Ignition Key Ring Illumination Operation
When the following conditions come:
 condition of interior lamp switch is DOOR position;
C mode S mode
Remote controller oper-
ation Lock Unlock Lock Unlock
Hazard warning lamp
flash TwiceOnceTwice —
Horn sound Once — — —
SEL153WA
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REMOTE KEYLESS ENTRY SYSTEMBL-59
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
*1: In the state that hazard reminder operates.
*
2: In the state that room lamp switch is in “DOOR” position.
Terminal and Reference Value for IPDM E/RINFOID:0000000001327819
*: In the state that horn reminder operates. 44 Y
Driver door lock actuator
(Unlock) Output
Door lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
45 G/W Left turn signal lamp Output When door lock or unlock is operat-
ed using key fob.*
1
(ON
→ OFF) Battery voltage
→ 0
46 BR/W Right turn signal lamp Output When door lock or unlock is operat-
ed using key fob.*
1
(ON
→ OFF) Battery voltage
→ 0
47 Y/R Step lamp output signal Output Step lamp is lighting. 0
Step lamp is being turned off. Battery voltage
48 PU/W Room lamp output signal Output Room lamp is lighting.*
20
Room lamp is being turned off.*
2Battery voltage
49 B Ground — — 0
50 PU Door lock actuator (Lock) Output Door lock / unlock switch
(Free
→ Lock) 0
→ Battery voltage
51 W/B Passenger and rear doors
lock actuator (Unlock) OutputDoor lock / unlock switch
(Free
→ Unlock) 0
→ Battery voltage
52 B Ground — — 0
54 W Battery power supply
(power window)
Input — Battery voltage
55 G Battery power supply (Fus-
ible link)
Input — Battery voltage
58 L Back door switch Input OFF (Door close)
→ ON (Door
open) 9
→ 0
62 W Front door switch (Driver
side) InputOFF (Door close)
→ ON (Door
open) Battery voltage
→ 0
63 P Rear door switch LH Input OFF (Door close)
→ ON (Door
open) Battery voltage
→ 0
Te r m i -
nal Wire
Color ItemSignal In-
put/ out-
put Condition
Voltage (V)
Approx.
Te r m i -nal Wire
Color ItemSignal
Input/
Output Condition
Voltage (V)
Approx.
38 B Ground — — 0
48 L CAN H Input/
Output ——
49 R CAN L Input/
Output ——
51 SB Horn relay Output When door lock is operated using
key fob* (OFF
→ ON) Battery voltage
→ 0
60 B Ground — — 0
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BL-60
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
CONSULT-III Function (BCM)
INFOID:0000000001327820
*: Refer to LAN-43, "CAN System Specification Chart".
DATA MONITOR
ACTIVE TEST
BCM diagnosis
position Inspection items and diagnosis mode Description
BCM C/U* Self-diagnosis results Carries out the self-diagnosis.
DATA MONITOR Displays the input data to BCM on real-time basis.
CAN DIAG SUPPORT MNTR
Displays CAN communication system diagnosis, disabled
transmission status, and communication status of each unit
communicated with BCM.
MULTI REMOTE
ENT DATA MONITOR
Displays the input remote keyless entry system data to BCM on
real–time basis.
ACTIVE TEST Gives a drive to a load to check the operation.
WORK SUPPORT Changes the setting for each function.
Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch in ON position.
KEY ON SW Indicates [ON/OFF] condition of key switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
KEYLESS LOCK Indicates [ON/OFF] conditio n of lock signal from key fob.
KEYLWSS UNLOCK Indicates [ON/ OFF] condition of unlock signal from key fob.
KEYLESS PANIC Indicates [ON/ OFF] condition of panic signal from key fob.
KEYLESS TRUNK This is disp layed even when it is not equipped.
DOOR SW-DR Indicates [ON/OFF] conditio n of front door switch driver side.
DOOR SW-AS Indicates [ON/OFF] condition of door switch passenger side.
DOOR SW-RR Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch.
TRUNK OPN MNTR This is displayed even when it is not equipped.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.
RKE LCK-UNLOCK Indicates [ON/OFF] condition of simultaneous signal of lock and unlock from key fob.
RKE KEEP UNLK Indicates [ON/OFF] condition of unlock continuousness signal from key fob.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from door ke y cylinder switch.
KEY CYL UN-SW Indicates [ON/OFF] condition of unlo ck signal from door key cylinder switch.
Te s t I t e m D e s c r i p t i o n
FLASHER This test is able to check right hazard reminder operation. The right hazard lamp turns on when “ON” on CONSULT-III screen is touched.
POWER WINDOW DOWN This test is able to check power window open operation.
The front power windows activate for 10 second
s after “ON” on CONSULT-III screen is touched.
HORN This test is able to check panic alarm and horn reminder operations. The horn activate for 0.5 seconds after “ON” on CONSULT-III screen is touched.
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REMOTE KEYLESS ENTRY SYSTEMBL-61
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
WORK SUPPORT
*: Perform this mode always in the state of C mode. Refer to BL-50, "System Description".
Horn Chirp Set*
*: Perform this mode always in the state of C mode. Refer to BL-50, "System Description".
This mode can be changed also on the display.
Hazard Lamp Set*
*: Perform this mode always in the state of C mode. Refer to BL-50, "System Description".
This mode can be changed also on the display.
Multi Answer Back Set
Auto Lock Set
Panic Alarm Set
DOOR LOCK This test is able to check door lock actuator operation.  The all door lock actuator are locked when “ALL LOCK” on CONSULT-III screen is touched.
 The all door lock actuator are unlocked when “ALL UNLOCK” on CONSULT-III screen is touched.
 The door lock actuator (driver side) is unlocked when “DR UNLOCK” on CONSULT-III screen is touched.
 The all door lock actuator (except driver side) are unlocked when “OTHER UNLOCK” on CONSULT- III screen is touched.
TRUNK/BACK DOOR This is displayed even when it is not equipped. Test Item Description
Test Item Description
HORN CHIRP SET* Horn reminder mode can be changed in this mode. The horn reminder mode will be changed
when “CHANGE SETT” on CONSULT-III screen is touched.
HAZARD LAMP SET* Hazard reminder mode can be changed in this mode. The hazard reminder mode will be
changed when “CHANGE SETT” on
CONSULT-III screen is touched.
MULTI ANSWER BACK SET Hazard and horn reminder mode can be changed in this mode. The hazard and horn remind-
er mode will be changed when “CHANGE SETT” on CONSULT-III screen is touched.
AUTO LOCK SET Auto locking function mode can be changed in this mode. The function mode will be changed
when “CHANGE SETT” on CONSULT-III screen is touched.
PANIC ALRM SET Panic alarm operation mode can be changed in this mode. The operation mode will be
changed when “CHANGE SETT” on
CONSULT-III screen is touched.
PW DOWN SET Keyless power window down (open) operation mode can be changed in this mode. The op-
eration mode will be changed when“CHANGE SETT” on CONSULT-III screen is touched.
Horn chirp function ON OFF
MODE1 MODE2 MODE3 MODE4
Hazard lamp operation mode Nothing Unlock only Lock only Lock and Unlock
MODE 1
(C mode) MODE 2
(S mode)
Key fob operation Lock Unlock Lock Unlock
Hazard warning lamp flash Twice Once Twice —
Horn sound Once ———
MODE 1 MODE 2 MODE 3
Auto locking function 1 minutes Nothing 5 minutes
MODE 1 MODE 2 MODE 3
Key fob operation 0.5 seconds Nothing 1.5 seconds
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