Infiniti G35 (V35). Manual — part 174

INTELLIGENT KEY SYSTEM

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DOOR LOCK/UNLOCK/TRUNK OPEN FUNCTION

Only when pressing the request switch, it is possible to lock and unlock the door and open the trunk by carry-
ing around the Intelligent Key (without some key operation).

System Diagram

Operation Description

●

When the Intelligent Key unit detects that each request switch is pressed, it starts the outside antenna cor-
responding to the pressed request switch and sends the request signal to the Intelligent Key. And then,
make sure that the Intelligent Key is near the door or the trunk.

●

If the Intelligent Key is within the outside antenna detection area, it receives the request signal and sends
the key ID signal to the Intelligent Key unit.

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Intelligent Key receives the key ID signal and compares it with the registered key ID.

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If the key ID check result is OK, the Intelligent Key unit sends the door lock/unlock or trunk open request
signal to BCM (Body control module) via CAN communication line.

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Intelligent Key unit sends the door lock/unlock signal and sounds Intelligent Key buzzer (Engine room)
warning (lock: 1 time, unlock: 2 times trunk open: 4 times) at the same time.

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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 an operation check.

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When BCM receives the trunk open request signal, it operates the trunk lid opener actuator and opens the
trunk.

PIIB4343E

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INTELLIGENT KEY SYSTEM

Operation Condition

If the following conditions are not satisfied, door lock/unlock or trunk open operations will not response even if
the request switch is operated.

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. 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. However, this operating range depends on the ambient conditions.

Key Reminder Function

Key reminder functions have the following 3 functions.

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

Each request switch operation

Operation condition

Lock operation

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All doors are closed

●

Intelligent Key is outside the vehicle

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Intelligent Key is with in outside key antenna detection area

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OFF position warning chime is not operated

Unlock Operation

●

Intelligent Key is outside the vehicle

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Intelligent Key is with in outside key antenna detection area

Trunk open operation

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Intelligent Key is in the outside key antenna (rear bumper) detection area and
Intelligent Key is not inside vehicle.

●

Intelligent Keys are in the outside key antenna (rear bumper) detection area and
Intelligent Key is inside vehicle. But both Intelligent Key IDs are different.

●

Trunk cancel switch is ON

●

Key reminder functions is not operated (trunk).

Key remainder function

Operation condition

Operation

When the driver door is open

Key reminder function is operated when

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Intelligent Key is inside the vehicle

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Driver door is open

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Door is locked by door lock and unlock switch or door lock
knob

All doors unlock operation

When the door is open to closed

Key reminder function is operated when

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Intelligent Key is inside the vehicle

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Any door is open

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All doors are locked by door lock and unlock switch or door
lock knob

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All door are closed

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All doors unlock operation

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Sound Intelligent Key warn-
ing buzzer (Engine room) for
3 seconds

When the trunk is closed

Key remainder function is operated when

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Trunk lid opener cancel switch is ON

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Intelligent Key is inside trunk room

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all door are closed

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all door are locked

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trunk is closed

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Trunk open operation.

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Sound Intelligent Key warn-
ing buzzer (Engine room) for
10 seconds

INTELLIGENT KEY SYSTEM

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When the trunk is closed, the Intelligent Key is not inside the vehicle

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When any door is open

Selective Unlock Function for Driver Side

When an LOCK signal is sent from door request switch (driver side), all doors will be locked.
When an UNLOCK signal is sent from door request switch (driver side) once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from door request switch (driver side) again within 5 seconds, passenger
side door will be unlocked.

Hazard and Horn Reminder

When doors are locked or unlocked by door request switch, Intelligent Key unit sends hazard and horn
request signal 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 “HAZARD ANSWER BACK”, “ANSWER BACK WITH I-KEY
LOCK” and “ANSWER BACK WITH I-KEY UNLOCK” mode in “WORK SUPPORT”.Refer to

BL-115, "WORK

SUPPORT"

.

Without CONSULT-II

When LOCK and UNLOCK signals are sent from the remote controller of Intelligent Key for more than 2 sec-
onds at the same time, the hazard and horn reminder mode is changed and hazard warning lamp flashes and
horn sounds as follows:

C mode

S mode

Remote controller of
Intelligent Key opera-
tion

Lock

Unlock

Lock

Unlock

Hazard warning lamp
flash

Twice

Once

Twice

—

Horn sound

Once

—

—

—

SEL153WA

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INTELLIGENT KEY SYSTEM

Auto Door Lock Function

When all doors are locked, ignition knob switch is OFF (when ignition switch is not pressed) and key switch is
OFF (when mechanical key is not inserted in key cylinder), doors are unlocked with door request switch
When Intelligent Key unit does not receive the following signals within 30 seconds, all doors are locked.

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Door switch is ON (door is opened)

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Door is locked

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Ignition knob switch is ON (ignition switch is pressed)

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Key switch is ON (mechanical key is inserted in key cylinder)

Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to

BL-

115, "WORK SUPPORT"

.

Room Lamp Operation

When the following conditions are met:

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Condition of interior lamp switch is in DOOR position

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Door switch is OFF (when 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-130, "ROOM LAMP TIMER OPERATION"

.

List of Operation Related Parts

Parts marked with

×

are the parts related to operation.

Door lock/trunk open function

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Door lock/unlock function by request switch

×

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Door lock/unlock function by mechanical key

×

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Trunk open function by the trunk opener switch

×

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Hazard and horn reminder function

×

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Key reminder function

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Selective unlock function by request switch
(Driver side)

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Auto door lock function

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