BL-88
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 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
BL-196
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 December 2006 FX35/FX45
Trouble Diagnosis Symptom ChartNIS001PD
*1: Make sure the system is in the armed phase. Procedure
Diagnostic procedure Refer to page
Symptom
1 Vehicle security
system cannot be
set by ···· Door switch Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-197
Lock / unlock switch Diagnostic Procedure 6 (Check door lock / unlock switch)BL-204
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-204
Key fob Check remote keyless entry. BL-54
Intelligent Key Check Intelligent Key.BL-86
— If the above systems are “OK”, replace BCM.BCS-15
Security indicator does not turn “ON”. Diagnostic Procedure 2 (Check security indicator lamp)
BL-203If the above systems are “OK”, replace BCM.BCS-15
2 *1 Vehicle secu-
rity system does
not alarm when
···· Any door is opened. Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-197If the above systems are “OK”, replace BCM.BCS-15
3 Vehicle security
alarm does not
activate. Horn alarm
Diagnostic Procedure 4 (Check vehicle security horn alarm)
BL-204
Check horn function. BL-80
If the above systems are “OK”, replace BCM.BCS-15
Head lamp alarm Diagnostic Procedure 5 (Check head lamp alarm)
BL-204If the above systems are “OK”, replace BCM.BCS-15
4 Vehicle security
system cannot be
canceled by ···· Door outside key
Diagnostic Procedure 3 (Check door key cylinder switch)
BL-204
If the above systems are “OK”, check power window main switch. EI-35
Key fob Check remote keyless entry function.
BL-55If the above systems are “OK”, replace BCM.BCS-15
Intelligent Key Check Intelligent Key
BL-88If the above systems are “OK”, replace BCM.BCS-15
