2007 INFINITI FX35 key battery

REMOTE KEYLESS ENTRY SYSTEM BL-71
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Revision: 2006 July 2007 FX35/FX45
Check Door SwitchNIS001MU
CHECK DOOR SWITCH (EXCEPT BACK DOOR SWITCH)
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check door switches (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR
SW-RL” and “DOOR SW-RR”) in “DATA MONITOR” mode with
CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
Monitor item Condition DATA MONITOR
DOOR SW-DR CLOSE ↓
OPEN: OFF
↓
ON
DOOR SW-AS
DOOR SW-RL
DOOR SW-RR
Item Connector Terminals
(Wire color) Door
condition Voltage (V)
(Approx.)
(+) (-)
Driver side B14 62 (W)
Ground CLOSE
↓
OPEN Battery voltage
↓0
Rear LH 63 (P)
Passenger side M3 12 (P/B)
Rear RH 13 (P/L)
PIIA6469E
PIIA7003E

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Revision: 2006 July 2007 FX35/FX45
Check Key SwitchNIS001MV
1. CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-II
Check ignition key switch “KEY ON SW” in “DATA MONITOR” mode
with CONSULT-II.

When key is inserted in ignition key cylinder

When key is removed from ignition key cylinder
Without CONSULT-II
Check voltage between BCM connector M3 terminal 37 (B/W) and
ground.
OK or NG
OK >> Key switch circuit is OK.
NG >> GO TO 2.
2. CHECK KEY SWITCH
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. KEY ON SW : ON
KEY ON SW : OFF
PIIA6470E
Condition of ignition key cylinder Voltage (V)
Approx.
Key is inserted Battery voltage
Key is removed 0
PIIA6471E
Terminal Key switch condition Continuity
12 Key is inserted in IGN key cylinder. Yes
Key is removed from IGN key cylinder No
PIIA2627E

REMOTE KEYLESS ENTRY SYSTEM BL-79
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Revision: 2006 July 2007 FX35/FX45
Check IPDM E/R OperationNIS001MX
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.
3. Check continuity between IPDM E/R connector E9 terminal 51 and horn relay connector E10 terminal 1.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness. 51 (SB) – Ground : Battery voltage
PIIA6403E
51 (SB) – 1 (SB) : Continuity should exist.
PIIA6404E

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Revision: 2006 July 2007 FX35/FX45
Key Fob Battery ReplacementNIS001N4
PIIA4706E

BL-88
INTELLIGENT KEY SYSTEM
Revision: 2006 July 2007 FX35/FX45
System DescriptionNIS001N6

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 communications between the Intelligent Key and the
vehicle

Operation of the remote control buttons on the Intelligent 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 locked or unlocked with entry switch or remote control-
ler button operation, the hazard lamps flash and the Intelligent Key warning buzzer sounds.

Even if the vehicle or Intelligent Key battery runs 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, change the function setting and register an Intelligent
Key with the CONSULT-II.
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
verification is performed using two-way communication with Intelligent Key, and if ID is successfully veri-
fied, 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.
PIIB4645E

INTELLIGENT KEY SYSTEM BL-91
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Revision: 2006 July 2007 FX35/FX45
NOTE:
luggage room can enable detection of Intelligent Key by a CONSULT-II function. Refer to BL-116, "
WORK
SUPPORT" .
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
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 lever 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 ignition 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 posi-
tion.

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
running.

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
Condition Operation
Ignition knob rotation possible “KEY” warning lamp in combination meter is lit up green.
Ignition rotation not possible “KEY” warning lamp in combination meter is lit up red.
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 return forgotten
warning

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
passes. (However, this warning is not issued if the mechanical key is inserted in the igni-
tion knob, ignition knob is turned except OFF position or ignition or ignition knob is not
pushed.)

BL-92
INTELLIGENT KEY SYSTEM
Revision: 2006 July 2007 FX35/FX45
Warning Procedure
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
passes. (However, this warning is not issued if the mechanical key is inserted in the igni-
tion 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
compares 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 Intelli-
gent 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.
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 warning When 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-
warning 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 — — —

INTELLIGENT KEY SYSTEM BL-93
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Revision: 2006 July 2007 FX35/FX45
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-operation warn-
ing — Buzzer (2 sec-
onds) ——
Intelligent Key low battery pre-
warning —— Green illuminate
(30 seconds after igni-
tion switch comes ON) —
Warning and alarm names
Buzzer Warning lamp
Inside car Outside car “KEY” “P” shift