2008 INFINITI FX35 ignition switch

REMOTE KEYLESS ENTRY SYSTEMBL-69
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1. Disconnect key switch connector.
2. Check continuity between key switch terminals 1 and 2.
OK or NG
OK >> Check the following.  15A fuse [No. 22, located in fuse block (J/B)]
 Harness for open or short between key switch and fuse
 Harness for open or short between BCM and key switch
NG >> Replace key switch.
Check Remote Keyless Entry ReceiverINFOID:0000000001327827
1.CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check remote keyless entry receiver connector M98 terminal 2 (L) and ground signal with oscilloscope.
OK or NG
OK >> Remote keyless entry receiver circuit is OK.
NG >> GO TO 2.
2.CHECK REMOTE KEYLESS ENTRY RECEIVER INPUT VOLTAGE
1. Disconnect remote keyless entry receiver connector.
2. Check voltage between remote keyless entry receiver connector M98 terminal 4 (R) and ground.
Terminal Key switch condition Continuity
12 Key is inserted in IGN key cylinder. Yes
Key is removed from IGN key cylinder No
PIIA2627E
Connector Te r m i n a l
(Wire color) Condition
of keyfob Voltag e
(Reference value)
(+) (–)
M98 2 Ground No function
Any button is pressed
PIIB1375E
OCC3879D
OCC3880D
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REMOTE KEYLESS ENTRY SYSTEMBL-71
< SERVICE INFORMATION >
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5.CHECK REMOTE KEYLESS ENTR Y RECEIVER GROUND CIRCUIT
1. Check continuity between remote keyless entry receiver con- nector M78 terminal 1 (B) and BCM connector M1 terminal 18
(B)
OK or NG
OK >> Check harness connection.  If it is OK, replace BCM.
 If it is NG, repair or replace malfunction part.
NG >> Repair or replace the harness.
6.CHECK REMOTE KEYLESS ENTR Y RECEIVER SIGNAL CIRCUIT
1. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and BCM connec-
tor M1 terminal 20 (Y).
2. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and ground.
OK or NG
OK >> Check harness connection.  If it is OK, replace remote keyless entry receiver.
 If it is NG, repair or replace malfunction part.
NG >> Repair or replace harness.
Check IPDM E/R OperationINFOID:0000000001327828
1.CHECK IPDM E/R INPUT VOLTAGE
Check voltage between IPDM E/R connector E9 terminal 51 and
ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 2.
2.CHECK IPDM E/R HARNESS
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector. 1 (B) – 18 (B) : Continuity should exist.
PIIB3952E
2 (Y) – 20 (Y) : Continuity should exist.
2 (Y) – Ground : Continuity should not exist.
PIIA9633E
51 (SB) – Ground : Battery voltage
PIIA6403E
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BL-72
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
3. Check continuity between IPDM E/R connector E9 terminal 51and horn relay connector E10 terminal 1.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Hazard Warn ing Lamp FunctionINFOID:0000000001327829
1.CHECK HAZARD WARNING LAMP
Do hazard warning lamp flash with hazard switch?
YES or NO
YES >> Hazard warning lamp circuit is OK.
NO >> Check hazard circuit. Refer to LT- 7 8
.
Check Horn FunctionINFOID:0000000001327830
First perform the “SELF-DIAG RESULTS” in “BCM” wi th CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
U1000 CAN Communica-
tion Circuit".
1.CHECK HORN FUNCTION
Does horn sound with horn switch?
YES or NO
YES >> Horn circuit is OK.
NO >> Check horn circuit. Refer to WW-48, "
Wiring Diagram - HORN -".
Check Headlamp FunctionINFOID:0000000001327831
First perform the “SELF-DIAG RESULTS” in “BCM” wi th CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
U1000 CAN Communica-
tion Circuit".
1.CHECK HEADLAMP FUNCTION
Does headlamp come on when turning lighting switch “ON”?
YES or NO
YES >> Headlamp operation circuit is OK.
NO >> Check headlamp system. Refer to LT- 5 , "
System Description".
Check Map Lamp and Ignition Keyhole Illumination FunctionINFOID:0000000001327832
1.CHECK MAP LAMP AND IGNITION KEYHOLE ILLUMINATION FUNCTION
When map lamp switch is in “DOOR” position, open the front door (LH or RH).
OK or NG
51 (SB) – 1 (SB) : Continuity should exist.
PIIA6404E
Map lamp and ignition keyhole illumination should illuminate.
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BL-78
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
System Description
INFOID:0000000001327837
 The Intelligent Key system is a system which can lock and unlock the doors (door lock function) and start the engine (engine start function) by carrying around the Intelligent Key, which operates based on the results of
electrical key-ID verification using two-way comm unications between the Intelligent Key and the vehicle
 Operation of the remote control buttons on the Intelli gent Key also provides the same functions as the
remote control entry system. (Remote control entry functions)
 As an ignition key warning function, when a door is lock ed or unlocked with entry switch or remote controller
button operation, the hazard lamps flash and the Intelligent Key warning buzzer sounds.
 Even if the vehicle or Intelligent Key battery r uns down, the door can be locked and unlocked and the engine
started with the mechanical key built into the Intelligent Key.
 If an Intelligent Key was lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can be registered.
 It has been made possible to diagnose the system, c hange the function setting and register an Intelligent
Key with the CONSULT-III.
DOOR LOCK FUNCTION
Operation Description
 When the driver door, passenger door, or back door request switch is pressed, Intelligent Key unit sends a request signal from the transmission antenna corresponding to the pressed door request switch, key-ID ver-
ification is performed using two-way communication with In telligent Key, and if ID is successfully verified, a
door lock/unlock request signal is sent to BCM (Body Control Module) using CAN communication to lock/
unlock the door lock.
 When door is locking, door is unlocked, when door is unlocking, door is locked.
 When door is locked/unlocked by door request switch operation, hazard lamps flash and Intelligent Key
warning buzzer sounds.
 With the locking operation of door request switch , door lock actuators of all door are locked.
Driver side door request switch operation
 When door request switch (driver side) is pushed (unlock), driver side door lock actuator is unlocked. (Selec-
tive door unlock function)
 When door request switch (driver side) is pushed (unlock) for the second time within 5 seconds after the first
operation, door lock actuators on pass enger's and other's doors are unlocked.
PIIB4645E
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INTELLIGENT KEY SYSTEMBL-79
< SERVICE INFORMATION >
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 Unlock mode can be changed using “WORK SUPPORT ” mode in “SELECTIVE UNLOCK FUNCTION”.
Refer to BL-104, "
CONSULT-III Application Item".
Passenger side door request switch operation
 When door request switch (passenger side) is pushed (unlock), passenger side door lock actuator is
unlocked.
 When door request switch (passenger side) is pushed (unlock) for the second time with in 5 seconds after
the first operation, door lock actuators on driver's and other's doors are unlocked.
 Unlock mode can be changed using “WORK SUPPORT ” mode in “SELECTIVE UNLOCK FUNCTION”.
Refer to BL-104, "
CONSULT-III Application Item".
Back door request switch operation
 When back door request switch is pushed (unlo ck), back door lock actuator is unlocked.
 When back door request switch is pushed (unlock) for the second time with in 5 seconds after the first oper-
ation, door lock actuators on driver's and passenger's doors are unlocked.
 Unlock mode can be changed using “WORK SUPPORT ” mode in “SELECTIVE UNLOCK FUNCTION”.
Refer to BL-104, "
CONSULT-III Application Item".
Operation Condition
Auto Door Lock Function
After the door request switch in the driver or pa ssenger or back door is operated and the vehicle door is
unlocked, all the doors are automatica lly locked unless the mechanical key is inserted into the ignition knob,
the ignition knob is pressed, any door request switch is pressed, any one of the doors is opened, or an Intelli-
gent Key remote control button is operated within 30 seconds.
Key Reminder Function
The hazard lamps will flash and the Intelligent Key warning buzzer will sound several times when the door lock
is locked or unlocked by door request switch operation.
When ignition switch ON or any door is opened, key reminder function is not operate.
Intelligent Key Lock-in Prevention Function
When doors are locked using door lock and unlock switch or driver door lock knob while Intelligent key is in
vehicle and doors open, Intelligent Key unit sends door unlock request signal to BCM via CAN communication
to unlock all doors to prevent Intelligent Key from becoming locked in vehicle.
CAUTION:
The above function operates when the Intelligent Key is inside the vehicle. However, there are cases
that Intelligent Key cannot be detect ed and this function will not operate when Intelligent Key is on the
instrument panel, rear parcel shelf, or in the gl ove box. Also, this system sometimes does not operate
if the Intelligent Key is in th e door pocket for the open door.
REMOTE CONTROL ENTRY FUNCTIONS
Door Lock Function
 Operating a remote controller button on the Intelligent Ke y sends the Intelligent Key-ID to the Intelligent Key
unit. Intelligent Key unit conducts a verification of the received key-ID, and if the verification is accepted, a
door lock or door unlock request signal is sent to BCM via CAN communication to lock/unlock the door.
 When door lock/unlock is performed using Intelligent Ke y remote controller button operation, operation con-
firmation is conducted by making hazard lamps flash and Intelligent Key warning buzzer sound.
OPERATION CONDITION
Door lock/unlock operation is necessary for all doors close.
Map Lamp And Keyhole Illumination Function
When the following conditions come:
 condition of map lamp switch is DOOR position;
Request switch operation Operating conditions (When all the conditions below are met)
Door request switch (Driver side)  Closing all doors (door switch: OFF)
 The Intelligent Key is in the antenna detection area for the door for which the door re-
quest switch (LOCK) was operated.
Door request switch (passenger side)
Door request switch (back door)
Vehicle operation Hazard lamp Intelligent Key warning buzzer
Door unlock operation Once Once
Door lock operation Twice Twice
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BL-80
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
 door switch OFF (when all the doors are closed);
Remote control button of Intelligent Key turns on interior lamp (for 30 seconds) with input of UNLOCK signal
from Intelligent Key.
Panic Alarm Function
When key switch is OFF and ignition knob is not pushed (when mechanical key is not inserted in ignition
knob), BCM turns ON and OFF horn and headlamp intermit tently with input of PANIC ALARM signal from
Intelligent Key. The alarm automatically turns off after 25 seconds or when Intelligent Key unit receives any
signal from Intelligent Key.
Panic alarm operation mode can be changed using “WORK SUPPORT” mode in “PANIC ALARM DELAY”.
Refer to BL-104, "
CONSULT-III Application Item".
Remote Control Power Window Down (Open) Operation
When Intelligent Key unlock switch is turned ON with i gnition switch OFF, and Intelligent Key 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 Intelligent Key unlock switch is
pressed.
Remote control power window down operation mode can be changed using “P/W DOWN DELAY” mode in
“WORK SUPPORT”. Refer to BL-104, "
CONSULT-III Application Item".
Key Reminder Function
As an operation verification function, when doors are lock ed or unlocked using Intelligent Key remote control-
ler button operation, hazard lamps flash and horn sounds.
ENGINE STARTUP FUNCTION
Operation Description
 When ignition knob is pressed, Intelligent Key unit sends request signal from inside key antenna, key-ID ver- ification is conducted with Intelligent Key using two-wa y communication, and if verification is successful, an
ignition rotation prohibition latch release signal is sent to steering lock unit. Steering lock unit releases igni-
tion knob rotation prohibition latch. (Ignition knob can now be turned.)
 When it becomes possible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up green to notify driver that ignition knob can be turned.
NOTE:
When it becomes impossible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up
red.
 When key-ID verification is successful and ignition knob switch is in the ON state, Intelligent Key unit uses CAN communication to send engine start permission signal to BCM.
 When BCM receives engine start permission signal, it uses CAN communication to sent starter request sig-
nal to IPDM E/R so that the engine will start when ignition knob is rotated to START position.
Operation Range
Engine can be started when Intelligent Key is in the v ehicle. However, sometimes engine might not start when
Intelligent Key is on instrument panel, rear parcel shelf, or in glove box.
NOTE:
luggage room can enable detection of Intelligent Key by a CONSULT-III function. Refer to BL-104, "
CON-
SULT-III Application Item".
Active Check Function
Confirm whether or not ignition knob can be rotated by checking the color of warning lamp in combination
meter.
WARNING AND ALARM FUNCTION
Vehicle operation Hazard lamp Horn
Door unlocking operation Once —
Door locking operation Twice Once
Condition Operation
Ignition knob rotation possib le “KEY” warning lamp in combin ation meter is lit up green.
Ignition rotation not possibl e “KEY” warning lamp in combin ation meter is lit up red.
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INTELLIGENT KEY SYSTEMBL-81
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Operation Description
The warnings and alarms are as follows and are given to the user as warning information and warnings using
combinations of Intelligent Key warning buzzer (in
driver door and passenger door), inside vehicle buzzer (in
combination meter), and warning lamps “KEY” and “LOCK.”
 Ignition switch return forgotten warning
With the ignition in OFF or ACC position, if the driver door is opened, this warning is issued.
 Selector lever return forgotten warning
With the ignition in OFF position, if the selector leve r is in except “P” position, this warning is issued.
 Key left in ignition warning (when mechanical key used) With the mechanical key in the ignition knob and the igniti on switch is in the OFF, ACC, or LOCK position, if
the driver door is opened, this warning is issued.
 Ignition switch OFF position warning (for inside car: when door closed) This warning is issued when the user forgets to return the ignition knob to the LOCK position.
 Ignition switch OFF position warning (for outside car: when door opened/closed)
This warning is issued when the user leaves the car without returning the ignition knob to the LOCK position.
 Warning for removal of Intelligent Key to outside the car (when door open/closed) This warning is issued if the Intelligent Key is taken outside the car while the engine is running.
 Warning for removal of Intelligent Key to outside the car (from window) This warning is issued if the Intelligent Key is taken outside the car through a window while the engine is run-
ning.
 Door lock non-operation warning This warning is issued if the door lock (lock) operation by a door request switch is not effected.
 Intelligent Key low battery warning
This warning is issued when it is detected that the battery in the Intelligent Key has been used up.
Operation Condition
Warning and alarm names Operating conditions (when all the conditions below are met)
Ignition knob return forgotten warn-
ing  The ignition switch is in the ACC, OFF, or LOCK position (knob pressed)
 The driver door is opened.
Selector lever retu rn forgotten warn-
ing  The ignition switch is in the OFF position.
 The selector lever is except “P” position.
Ignition key warning
(When mechanical key used)  The mechanical key is inserted in the ignition knob (key switch: ON)
 The ignition switch is in the ACC, OFF, or LOCK position.
 The driver door is opened
Ignition knob OFF position warning
(for inside car: when door closed)  The ignition switch is in the OFF or LOCK position (knob pressed)
 In the above state, when the ACC switch is changed from ON to OFF and 1 second pass-
es. (However, this warning is not issued if the mechanical key is inserted in the ignition
knob, ignition knob is turned except OFF position or ignition or ignition knob is not
pushed.)
Ignition knob OFF position warning
(for outside car: when door opened/
closed)  The ignition switch is in the OFF or LOCK position (knob pressed)
 In the above state, when the ACC switch is changed from ON to OFF and 1 second pass-
es. (However, this warning is not issued if the mechanical key is inserted in the ignition
knob, ignition knob is turned except OFF position or ignition or ignition knob is not
pushed.)
 Driver door open → closed
Warning for take out of Intelligent
Key to outside the car (when door
open/closed) When Any of the Following Conditions Are Met
 When the ignition knob is pressed in so that it can be rotated (or has been rotated), if any
of the doors has been opened, when all the doors are closed, the Intelligent Key unit com-
pares the key-ID with that of the Intelligent Key using the inside key antenna, if the results
of the comparison are NG (the Intelligent Key is not found)
 When the ignition knob is pressed in so that it can be rotated (or has been rotated), if any of the doors is open, the Intelligent Key unit compares the key-ID with that of the Intelligent
Key every 5 seconds using the inside key antenna (center console), if the results of the
comparison are NG (the Intelligent Key is not found)
NOTE:
However, this warning is not issued if the mechanical key is inserted in the ignition knob.
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BL-82
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Warning Procedure
CHANGE SETTINGS FUNCTION
The settings for each function can be changed with the CONSULT-III or Intelligent Key operation.
Changing Settings With the Intelligent Key
Warning for take out of Intelligent
Key to outside the car (from win-
dow) When the ignition knob is pressed in so that it can be rotated (or has been rotated), if the
vehicle speed is no greater than 5 km per hour, the Intelligent Key unit compares the key-ID
with that of the Intelligent Key every 30 seconds using the inside key antenna, if the results
of the comparison are NG (the Intelligent Key is not found)
Note: The factory setting for this function is OFF.
Door lock non-operation warningWhen any of the following conditions are met
Intelligent Key Lock-in Prevention Warning
 When the Intelligent Key is inside the car and the ignition knob is not pressed, when an
attempt is made to lock a door lock with a door request switch
NOTE:
This warning is issued even if the Intelligent Key is not in the out side key antenna detec-
tion area corresponding to the door request switch was operated.
Knob Return Forgotten Warning
 When the ignition knob is pressed, when an attempt is made to lock a door lock with a door
request switch
NOTE:
This warning is only issued if the Intelligent Key is in the out side key antenna detection
area corresponding to the door request switch was operated.
Door Ajar Alarm
 When any of the doors is open, when an attempt is made to lock a door lock with a door
request switch
NOTE:
This warning is only issued if the Intelligent Key is in the out side key antenna detection
area corresponding to the door request switch was operated.
Intelligent Key low battery pre-warn-
ing This warning is issued when it is detected that the battery in the Intelligent Key has been
used up.
Warning and alarm names Operating conditions (when all the conditions below are met)
Warning and alarm names
Buzzer Warning lamp
Inside car Outside car “KEY” “P” shift
Ignition switch return forgotten
warning Buzzer: Continuous — — —
Selector lever return for gotten
warning — — — Illuminate
Ignition key warning
(When mechanical key used) Buzzer: Continuous — — —
Ignition switch OFF position
warning (for inside car: when
door closed) Buzzer: Continuous — — —
Ignition switch OFF position
warning (for outside car: when
door opened/closed) Buzzer: Continuous
Buzzer (10 sec-
onds) ——
Warning for removal of Intelli-
gent Key to outside the car
(when door open/closed) —
Buzzer (3 sec-
onds) Red illuminate —
Warning for removal of Intelli-
gent Key to outside the car
(from window) Buzzer (3 seconds) — Red illuminate —
Door lock non-o peration warn-
ing —Buzzer (2 sec-
onds) ——
Intelligent Key low battery pre-
warning ——Green illuminate
(30 seconds after ignition switch comes ON) —
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