2005 INFINITI QX4 Factory Service Manual

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Page 841 of 3419

INFINITI QX4 2005 Factory Service Manual BL-74
REMOTE KEYLESS ENTRY SYSTEM
Revision: October 20052005 QX56
NOTE:
If a keyfob is lost, the ID code of the lost keyfob must be erased to prevent unauthorized use. A specific ID
code can be erase

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INFINITI QX4 2005 Factory Service Manual VEHICLE SECURITY (THEFT WARNING) SYSTEM
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VEHICLE SECURITY (THEFT WARNING) SYSTEMPFP:28491
Component Parts and Harness Connector LocationE

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INFINITI QX4 2005 Factory Service Manual BL-76
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: October 20052005 QX56
System DescriptionEIS008QM
DESCRIPTION
Operation Flow

Setting the vehicle security system
Initial condition
Ignition sw

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INFINITI QX4 2005 Factory Service Manual VEHICLE SECURITY (THEFT WARNING) SYSTEM
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2. Door is unlocked without using key or keyfob.
3. Power back door is opened without using the

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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2. Door is unlocked without using key or keyfob.
3. Power back door is opened without using the keyfob.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
through 10A fuse [No.19, located in the fuse block (J/B)]
to combination meter (security indicator lamp) terminal 8 and
through 50A fusible link (letter f , located in the fuse and fusible link box)
to BCM terminal 70.
through 15A fuse [No. 22, located in the fuse block (J/B)]
to BCM terminal 57.
through 15A fuse (No. 25, located in the fuse and fusible link box)
to horn relay terminal 2.
through 20A fuse (No. 52, located in the IPDM E/R) and
through 20A fuse (No. 53, located in the IPDM E/R),
to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied
through 10A fuse [No. 4, located in the fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
to BCM terminal 67
through body grounds M57, M61 and M79 and
to IPDM E/R terminals 38 and 59
through body ground E9, E15 and E24.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and glass hatch.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and glass hatch
are closed and the doors are locked.
When a door is open, BCM terminal 12, 13, 42, 47 or 48 receives a ground signal from each door switch.
When front door LH is unlocked, BCM terminal 22 receives a signal from terminal 14 of main power window
and door lock/unlock switch.
When front door RH is unlocked, BCM terminal 22 receives a signal from terminal 16 of power window and
door lock/unlock switch RH or the rear power window switch LH or RH.
When the back door is open, BCM terminal 43 receives a ground signal
from terminal 7 of the back door latch (door ajar switch)
through back door latch terminal 8
through body grounds B7 and B19.
When the glass hatch is open, BCM terminal 42 receives a ground signal
from terminal + of the glass hatch ajar switch
through glass hatch ajar switch case ground.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by
opening a door
opening the hood
opening the glass hatch
unlocking door without using the key or keyfob.
The vehicle security system will be triggered once the system is in armed phase,
when BCM receives a ground signal at terminals 12, 13, 47, 48 (door switch), terminal 42 (glass hatch ajar
switch) or terminal 43 [back door latch (door ajar switch)], or IPDM E/R terminal 41 (hood switch) receives
a ground signal.
Power is supplied at all times

Page 845 of 3419

INFINITI QX4 2005 Factory Service Manual BL-78
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: October 20052005 QX56
to horn relay terminal 2
through 15A fuse (No. 25, located in fuse and fusible link box).
When the vehicle security syst

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INFINITI QX4 2005 Factory Service Manual VEHICLE SECURITY (THEFT WARNING) SYSTEM
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SchematicEIS008QO
WIWA1311E

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INFINITI QX4 2005 Factory Service Manual BL-80
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: October 20052005 QX56
Wiring Diagram — VEHSEC —EIS008QP
WIWA1227E

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INFINITI QX4 2005 Factory Service Manual VEHICLE SECURITY (THEFT WARNING) SYSTEM
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LIWA0458E

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