INFINITI M35 2007 Factory Service Manual
Manufacturer: INFINITI, Model Year: 2007, Model line: M35, Model: INFINITI M35 2007Pages: 4647, PDF Size: 93.69 MB
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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
When BCM receives the door lock/unlock signal, it operates door lock actuator and flashes the hazard
lamp (lock: 1 time, unlock: 2 times) at the same time as a reminder.
Operation Description/Trunk Open
When the Intelligent Key unit detects that trunk open request switch is pressed, it starts the outside key
antenna (trunk room) and inside key antenna corresponding to the pressed trunk open request switch and
sends the request signal to the Intelligent Key. And then, make sure that the Intelligent Key is near the
trunk.
If the Intelligent Key is within the outside key antenna (trunk room) detection area, it receives the request
signal and sends the key ID signal to the Intelligent Key unit via remote keyless entry receiver.
Intelligent Key unit receives the key ID signal and compares it with the registered key ID.
If the key ID check result is OK, the Intelligent Key unit sends trunk open request signal to BCM (Body
control module) via CAN communication line.
Intelligent Key unit sends the trunk open request signal and sounds Intelligent Key warning buzzer 4 times
at the same time.
When BCM receives the trunk open request signal, it operates the trunk lid opener actuator and opens the
trunk.
Operation Condition
If the following conditions are not satisfied, door lock/unlock or trunk open operations are not performed even
if the request switch is operated.
*: Even with a registered Intelligent Key remain inside the vehicle, door locks can be unlock from outside of the vehicle with a spare Intel-
ligent Key as long as key IDs are different.
Outside Key Antenna Detection Area
The outside key antenna detection area of door lock/unlock function
is in the range of approximately 80 cm (31.50 in) surrounding the
driver and passenger door handles (1). The outside key antenna
detection area of trunk open function is in the range of approximately
80 cm (31.50 in) surrounding Trunk opener request switch (2). How-
ever, this operating range depends on the ambient conditions.
Each request switch operation Operation condition
Lock operation
All doors are closed
Ignition switch is in OFF position
Intelligent Key is out of key slot
Intelligent Key is outside the vehicle
Intelligent Key is within outside key antenna detection area
Unlock Operation
Intelligent Key is outside the vehicle
Intelligent Key is within outside key antenna detection area *
Trunk open operation
Intelligent Key is within outside key antenna (trunk room) detection area*
Trunk cancel switch is ON
Key reminder functions operate (trunk)
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INTELLIGENT KEY SYSTEM
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Key Reminder Function
Key reminder functions have the following 3 functions.
*:If the door closing impact shocks the door lock knob, or contacts against baggage with the door lock knob might activate the door locks
accidentally but unlock operation will be perform at these cases.
CAUTION:
The above function operates when the Intelligent Key is inside the vehicle. However, there may be
times when the Intelligent Key cannot be detected, and this function will not operate when the
Intelligent Key is on the instrument panel, rear parcel shelf, or in the glove box. Also, this system
sometimes does not operate if the Intelligent Key is in the door pocket for the open door.
When the key reminder function is operated when the trunk is open/closed and the buzzers sound,
if the following operations are performed, the key reminder function is cleared and buzzer sounds
are stopped.
–Remote controller door lock button operation of Intelligent Key
–Remote controller door unlock button operation of Intelligent Key
–When the trunk is closed, the Intelligent Key is not inside the vehicle
–When any door is open
Selective Unlock Function
When an LOCK signal is sent from door request switch (driver side or passenger side), all doors will be locked.
When an UNLOCK signal is sent from door request switch (driver side or passenger side) once, driver's door
will be unlocked.
Then, if an UNLOCK signal is sent from door request switch (driver side and passenger side) again within 5
seconds, all other door will be unlocked.
Hazard and Buzzer Reminder Function
During lock, unlock, or trunk opening operation by each request switch, the hazard warning lamps and Intelli-
gent Key warning buzzer will flashes or honk as a reminder.
When doors are locked, unlocked or trunk open by each request switch, Intelligent Key unit honks Intelligent
Key warning buzzer as a reminder and sends hazard request signal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder.
Operating function of hazard and buzzer reminder
How to change hazard and buzzer reminder mode
With CONSULT-II
Key remainder function Operation condition Operation
Driver door close*Right after driver side door is closed under the following conditions
Door lock operation is performed
Driver side door is opened
Driver side door is in unlock stateAll doors unlock
Door is open or closedRight after all doors are closed under the following conditions
Intelligent Key is inside the vehicle
Any door is opened
All doors are locked by door lock and unlock switch or door lock knob
All doors unlock
Honk Intelligent Key warning
buzzer
Trunk is closedRight after trunk is closed under the following conditions
Intelligent Key is inside trunk room
all doors are closed
all doors are locked
Trunk open
Honk Intelligent Key warning
buzzer
Operation Hazard warning lamp flash Intelligent Key warning buzzer honk
Unlock Once Once
Lock Twice Twice
Trunk open — Fourth
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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Hazard and buzzer reminder can be changed using “HAZARD ANSWER BACK”, “ANSWER BACK WITH I-
KEY LOCK” and “ANSWER BACK WITH I-KEY UNLOCK” mode in “WORK SUPPORT”.Refer to BL-81,
"WORK SUPPORT" .
Auto Door Lock Function
When all doors are locked, ignition switch is in OFF position and key switch is OFF (Intelligent Key is not
inserted in key slot), doors are unlocked with door request switch
When Intelligent Key unit does not receive the following signals within 60 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON (ignition switch is pressed)
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
81, "WORK SUPPORT" .
Room Lamp Operation
When the following conditions are met:
Condition of interior lamp switch is in DOOR position
Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from door request
switch. For detailed description, refer to LT- 2 6 9 , "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with × are the parts related to operation.
Door lock/trunk open function
Intelligent Key
Key slot
Remote keyless entry receiver
Door switch
Trunk room lamp switch
Door request switch (Driver, Passenger)
Trunk opener request switch
Door lock actuator
Trunk lid opener actuator
Inside key antenna
Outside key antenna (Driver, Passenger)
Outside key antenna (Trunk)
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Hazard warning lamp
Trunk lid opener cancel switch
Push-button ignition switch
Door lock/unlock function by request switch×××××××× ×××
Trunk open function by the trunk opener
request switch××××××××××××
Hazard and buzzer reminder function for door
lock/unlock operation×××××
Buzzer reminder for trunk open operation××××
Key reminder function×××× × × ××××××××
Selective unlock function by request switch
(Driver side)× ×××× ×××
Selective unlock function by request switch
(Passenger side)× ×××× ×××
Auto door lock function××××× ××× ×
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INTELLIGENT KEY SYSTEM
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REMOTE KEYLESS ENTRY FUNCTIONS
The Intelligent Key has the same functions as the remote control entry system. Therefore, it can be used in the
same manner as the remote controller by operating the door lock/unlock button and trunk open button.
System Diagram
Operation Description/Door Lock/Unlock Function
When door lock/unlock button of the Intelligent Key is pressed, lock signal or unlock signal is sent from
Intelligent Key to Intelligent Key unit via remote keyless entry receiver.
Intelligent Key unit sends the door lock/unlock request signal to BCM via CAN communication line.
Intelligent Key unit sends the door lock/unlock signal to BCM.
When BCM receives the door lock/unlock signal, it operates door lock actuator, flashes the hazard lamp
(lock: 1 time, unlock: 2 times) and horn chirp signal to IPDM E/R at the same time as a reminder.
IPDM E/R honks horn (lock: 1 time) as a reminder
Operation Description/Trunk Open Function
When trunk button of the Intelligent Key is pressed, the trunk open signal is sent from the Intelligent Key to
the Intelligent Key unit via remote keyless entry receiver.
Intelligent Key unit sends trunk open request signal to BCM via CAN communication line.
When BCM receives the trunk open request signal, it operates the trunk lid opener actuator and opens the
trunk.
Operation Condition
Operation Area
Operating Range
To ensure the Intelligent Key works effectively, use within 100 cm range of each doors, however the oper-
able range might be differ by surroundings.
Selective Unlock Function
When an LOCK signal is sent from Intelligent Key, all doors will be locked.
When an UNLOCK signal is sent from Intelligent Key once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from Intelligent Key again within 5 seconds, all other door will be unlocked.
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Remote controller operation Operation condition Operation
Lock
All doors closed All doors lock
Unlock
Intelligent Key is out of key slot All doors unlock
Trunk open
Press and hold the trunk open button for 0.5 second or more Trunk open
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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Hazard and Horn Reminder Function
When doors are locked or unlocked by Intelligent Key, Intelligent Key unit sends hazard and horn request sig-
nal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder and sends horn chirp signal to IPDM E/R. IPDM E/R
sounds horn as a reminder.
The hazard and horn reminder has a horn chirp mode (C mode) and a non-horn chirp mode (S mode).
Operating function of hazard and horn reminder
Hazard and horn reminder does 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 “HORN WITH KEYLESS LOCK” and “HAZARD ANSWER
BACK” mode in “WORK SUPPORT”.Refer to BL-81, "
WORK SUPPORT" .
Without CONSULT-II
When LOCK and UNLOCK signals are sent from the Intelligent Key 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 Function
When all doors are locked, ignition switch is OFF (ignition switch is not pressed) and key switch is OFF (Intel-
ligent Key is not inserted in key slot), doors are unlocked with Intelligent Key button. When Intelligent Key unit
does not receive the following signals within 30 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
81, "WORK SUPPORT" .
Panic Alarm Function
When ignition switch is OFF (ignition switch is not pressed) and key switch is OFF (Intelligent Key is not
inserted in key slot), Intelligent Key unit receives PANIC ALARM signal from Intelligent Key.
Intelligent Key unit sends alarm request signal to BCM via CAN communication line.
BCM turns on and off headlamp intermittently and sends theft warning horn signal to IPDM E/R. Then, IPDM
E/R turns on and off horn intermittently.
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off:
After 25 seconds
When Intelligent Key unit receives any signal from Intelligent Key
When door request switch is pressed (Intelligent Key is within the outside key antenna detection area)
Panic alarm function mode can be changed by “PANIC ALARM DELAY” mode in “WORK SUPPORT”. Refer to
BL-81, "
WORK SUPPORT" .
C mode S mode
Intelligent Key operation Lock Unlock Trunk open Lock Unlock Trunk open
Hazard warning lamp flash Twice Once — Twice — —
Horn sound Once—————
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INTELLIGENT KEY SYSTEM
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Keyless Power Window Down (Open) Function
All power windows open when the unlock button on Intelligent Key is activated and kept pressed for more than
3 seconds with the ignition switch OFF. The windows keep opening if the unlock button is continuously
pressed.
The power window opening stops when the following operations are performed:
When the unlock button is kept pressed more than 15 seconds.
When the ignition switch is turned ON while the power window opening is operated.
When the unlock button is released.
While retained power operation activate, Keyless power window down (open) Function cannot be operated.
Keyless power window down operation mode can be changed by “P/W DOWN DELAY” mode in “WORK SUP-
PORT”. Refer to BL-81, "
WORK SUPPORT" .
Room Lamp Illumination Operation
When the following conditions are met:
Condition of interior lamp switch is in DOOR position
Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from Intelligent
Key. For detailed description, refer to LT- 2 6 9 , "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with × are the parts related to operation.
ENGINE START FUNCTION
Refer to BL-125, "INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION" .
Remote keyless entry functions
Intelligent Key
Key slot
Door request switch (Driver, Passenger)
Door switch
Trunk room lamp switch
Door lock actuator
Trunk lid opener actuator
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Combination meter
Hazard warning lamp
Horn
IPDM E/R
Head lamp
Door lock/unlock function by remote control button×× × × ×××
Trunk open function by remote control button×× × × ×××
Hazard and horn reminder function× ××××××××
Selective unlock function××××××
Keyless power window down (open) function×× ×××
Auto door lock function×× × ×××
Panic alarm function× × ××× ×××
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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
WARNING FUNCTION
Operation Description
The warning function are as follows and are given to the user as warning information and warnings using com-
binations of Intelligent Key warning buzzer, KEY warning lamp, key slot illumination and combination meter
display in combination meter.
Intelligent Key system malfunction
OFF position warning
P position warning
ACC warning
Ta k e a w a y w a r n i n g
Door lock operation warning
Key warning
Intelligent Key insert information
Engine start information
Steering lock information
Intelligent key low battery warning
Key ID warning
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INTELLIGENT KEY SYSTEM
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Operation Condition
Once the following condition from below is established, alert or warning will be executed.
Warning/Information functions Operation procedure
Intelligent Key system malfunctionWhen a malfunction is detected on Intelligent Key unit, “KEY” warning lamp
will illuminates.
OFF position warning For internal
Ignition switch: ACC position.
Door switch (driver side): ON (Door is open).
For externalOFF position warning (For internal) is in active mode, driver side door has
been closed.
NOTE:
OFF position (For external) active only when each of the sequence has
occurred as below: P position warning → ACC warning → OFF position warn-
ing (For internal) → OFF position warning (For internal)
P position warning
Shift position: Except P position
Engine is running to stopped (Ignition switch is ON to ACC)
ACC warning
During P position warning is in active mode, shift position has changed P
position.
Ignition switch: Except OFF position.
Take away warningDoor is open to close
Ignition switch: Except OFF position.
Door switch: ON to OFF (Door is open to close).
Intelligent Key can not be detected inside the vehicle.
Door is open
Door switch: ON (Door is open)
Key ID vilification every 5 seconds when registered Intelligent Key can not
be detected inside the vehicle.
Push-ignition switch
operation
Ignition switch: Except OFF position.
Press ignition switch.
Intelligent Key can not be detected inside the vehicle.
Take away through win-
dow
Engine is running.
Key ID vilification every 30 seconds when registered Intelligent Key can not
be detected inside the vehicle.
After vehicle speed verification, the registered Intelligent Key can not be
detect inside the vehicle.
Intelligent Key is
removed from key slot
When Intelligent Key is removed from key slot, Intelligent Key can not be
detected inside the vehicle.
Door lock operation
warningRequest switch operationWhen request switch is pushed (lock operation) under the following condi-
tions.
Door switch: ON (Any door is open).
Intelligent Key is inside vehicle.
Intelligent Key button
operationWhen Intelligent Key bottom is pushed (lock operation) under the following
conditions.
Door switch: ON (Any door is open).
For 3 seconds after Intelligent Key is removed from key slot.
Key warning
Ignition switch is OFF position.
Driver side door switch: ON (Driver side door is open).
Intelligent Key is inserted in key slot.
Intelligent Key insert information
Door switch: ON to OFF (Door is open to close).
Ignition switch: OFF to ON position.
Intelligent Key is out of key slot.
Intelligent Key can not be detected inside the vehicle.
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Revision: 2007 April2007 M35/M45
Warning Method
The following table shows the alarm or warning methods with chime.
Meter display, “KEY” indicator or key slot illumination when the warning conditions are met.
Engine start informationIgnition switch is ON
position
Ignition switch: ON position.
Shift position: P position
Engine is stopped
Ignition switch is except
ON position
Ignition switch: Except ON position.
Shift position: P position
Intelligent Key is inserted in key slot.
Intelligent Key can be detected inside the vehicle.
Steering lock information When steering lock can not be released after ignition switch is turned ON.
Intelligent Key low battery warningWhen Intelligent Key is low battery, Intelligent Key unit is detected after igni-
tion switch is turned ON.
Key ID warningWhen registered Intelligent Key can not be detected inside the vehicle after
ignition switch is turned ON. Warning/Information functions Operation procedure
Warning/Information functions“KEY” warn-
ing lampCombination meter displayKey slot
illuminationWarning chime
Combination
meter buzzerIntelligent
Key warning
buzzer
Intelligent Key system malfunction Illuminate — — — —
OFF position warn-
ing For internal — — — Activate —
For external — — — — Activate
P position warning — — Activate —
ACC warning — — Activate —
Take away warningDoor is open to
close— Flash Activate Activate
Door is open — Flash — —
Push-ignition
switch operation— Flash Activate —
Take away
through window— Flash Activate —
Intelligent Key is
removed from
key slot—Flash——
Door lock opera-
tion warningRequest switch
operation— — — — Activate
Intelligent Key
operation— — — — Activate
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INTELLIGENT KEY SYSTEM
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Key warning — Flash Activate —
Intelligent Key insert information — Flash — —
Engine start infor-
mationIgnition switch is
ON position————
Ignition switch is
except ON posi-
tion————
Steering lock information — — — —
Intelligent Key low battery warning — — — —
Key ID warning — — — —Warning/Information functions“KEY” warn-
ing lampCombination meter displayKey slot
illuminationWarning chime
Combination
meter buzzerIntelligent
Key warning
buzzer
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