Intelligent Key System
INTELLIGENT KEY SYSTEMSystem Description
- 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 controller 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 verified, 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.
Driver side door request switch operation
- When door request switch (driver side) is pushed (unlock), driver side door lock actuator is unlocked. (Selective door unlock function)
- When door request switch (driver side) is pushed (unlock) for the second time within 5 seconds after the first operation, door lock actuators on passenger's and other's doors are unlocked.
- Unlock mode can be changed using "WORK SUPPORT" mode in "SELECTIVE UNLOCK FUNCTION". Refer to "WORK SUPPORT". Work Support
Passenger side door request switch operation
- When door request switch (passenger side) is pushed (unlock), passenger side door lock actuator is unlocked.
- When door request switch (passenger side) is pushed (unlock) for the second time with in 5 seconds after the first operation, door lock actuators on driver's and other's doors are unlocked.
- Unlock mode can be changed using "WORK SUPPORT" mode in "SELECTIVE UNLOCK FUNCTION". Refer to "WORK SUPPORT". Work Support
Back door request switch operation
- When back door request switch is pushed (unlock), back door lock actuator is unlocked.
- When back door request switch is pushed (unlock) for the second time with in 5 seconds after the first operation, door lock actuators on driver's and passenger's doors are unlocked.
- Unlock mode can be changed using "WORK SUPPORT" mode in "SELECTIVE UNLOCK FUNCTION". Refer to "WORK SUPPORT". Work Support
Auto Door Lock Function
After the door request switch in the driver or passenger or back door is operated and the vehicle door is unlocked, all the doors are automatically locked unless the mechanical key is inserted into the ignition knob, the ignition knob is pressed, any door request switch is pressed, any one of the doors is opened, or an Intelligent Key remote control button is operated within 30 seconds.
Key Reminder Function
The hazard lamps will flash and the Intelligent Key warning buzzer will sound several times when the door lock is locked or unlocked by door request switch operation.
When ignition switch ON or any door is opened, key reminder function is not operate.
Intelligent Key Lock-in Prevention Function
When doors are locked using door lock and unlock switch or driver door lock knob while Intelligent key is in vehicle and doors open, Intelligent Key unit sends door unlock request signal to BCM via CAN communication to unlock all doors to prevent Intelligent Key from becoming locked in vehicle.
CAUTION: The above function operates when the Intelligent Key is inside the vehicle. However, there are cases that Intelligent Key cannot be detected and this function will not operate when 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.
REMOTE CONTROL ENTRY FUNCTIONS
Door Lock Function
- Operating a remote controller button on the Intelligent Key sends the Intelligent Key-ID to the Intelligent Key unit. Intelligent Key unit conducts a verification of the received key-ID, and if the verification is accepted, a door lock or door unlock request signal is sent to BCM via CAN communication to lock/unlock the door.
- When door lock/unlock is performed using Intelligent Key remote controller button operation, operation confirmation is conducted by making hazard lamps flash and Intelligent Key warning buzzer sound.
OPERATION CONDITION
Door lock/unlock operation is necessary for all doors close.
Map Lamp And Keyhole Illumination Function
When the following conditions come:
- condition of map lamp switch is DOOR position;
- door switch OFF (when all the doors are closed);
Remote control button of Intelligent Key turns on interior lamp (for 30 seconds) with input of UNLOCK signal from Intelligent Key.
Panic Alarm Function
When key switch is OFF and ignition knob is not pushed (when mechanical key is not inserted in ignition knob), BCM turns ON and OFF horn and headlamp intermittently with input of PANIC ALARM signal from Intelligent Key. The alarm automatically turns off after 25 seconds or when Intelligent Key unit receives any signal from Intelligent Key.
Panic alarm operation mode can be changed using "WORK SUPPORT" mode in "PANIC ALARM DELAY". Refer to "WORK SUPPORT". Work Support
Remote Control Power Window Down (Open) Operation
When Intelligent Key unlock switch is turned ON with ignition switch OFF, and Intelligent Key unlock switch is detected to be on continuously for 3 seconds, the driver's door and passenger's door power windows are simultaneously opened.
Power window is operated to open and the operation continues as long as the Intelligent Key unlock switch is pressed.
Remote control power window down operation mode can be changed using "P/W DOWN DELAY" mode in "WORK SUPPORT". Refer to "WORK SUPPORT". Work Support
Key Reminder Function
As an operation verification function, when doors are locked or unlocked using Intelligent Key remote controller button operation, hazard lamps flash and horn sounds.
ENGINE START UP FUNCTION
Operation Description
- When ignition knob is pressed, Intelligent Key unit sends request signal from inside key antenna, key-ID verification is conducted with Intelligent Key using two-way communication, and if verification is successful, an ignition rotation prohibition latch release signal is sent to steering lock unit. Steering lock unit releases ignition knob rotation prohibition latch. (Ignition knob can now be turned.)
- When it becomes possible to rotate the ignition knob, "KEY" warning lamp in combination meter lights up green to notify driver that ignition knob can be turned.
NOTE: When it becomes impossible to rotate the ignition knob, "KEY" warning lamp in combination meter lights up red.
- When key-ID verification is successful and ignition knob switch is in the ON state, Intelligent Key unit uses CAN communication to send engine start permission signal to BCM.
- When BCM receives engine start permission signal, it uses CAN communication to sent starter request signal to IPDM E/R so that the engine will start when ignition knob is rotated to START position.
Operation Range
Engine can be started when Intelligent Key is in the vehicle. However, sometimes engine might not start when Intelligent Key is on instrument panel, rear parcel shelf, or in glove box.
NOTE: Luggage room can enable detection of Intelligent Key by a CONSULT-II function. Refer to "WORK SUPPORT". 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 position.
- 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.
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Part 2:
Operation Condition
Part 1:
Part 2:
Warning Procedure
CHANGE SETTINGS FUNCTION
The settings for each function can be changed with the CONSULT-II or Intelligent Key operation.
Changing Settings With the Intelligent Key
Intelligent Key remote controller button and door request switch operations change the engine startup function settings (startup enabled/disabled) for each Intelligent Key independently.
Settings Change Procedure
1. With the ignition switch is in the LOCK position (ignition knob not pressed), hold down both the LOCK and UNLOCK remote control buttons on the Intelligent Key at the same time for at least 10 seconds (The yardstick is that the Intelligent Key LED flashes 20 times.)
2. Within 5 seconds of releasing the Intelligent Key remote controller buttons, press the driver door request switch.
3. The KEY warning lamp in combination meter lights up for 3 seconds (engine starting enabled -> starting disabled: lights up red, engine starting disabled -> flashes green). This completes the settings change.
Changing Settings Using CONSULT-II
The settings for the Intelligent Key system functions can be changed using CONSULT-II (WORK SUPPORT). Refer to "WORK SUPPORT". Work Support
NOTE: Once a function setting is changed, it will remain effective even if the battery is disconnected.
Changing Settings Using Display Unit
The settings of the Intelligent Key system can be changed, using CONSULT-II, display unit, Intelligent Key and door request switch in the center of the instrument panel. Refer to "Vehicle Electronic Systems". Function of Center Switch
NOTE: Once a function setting is changed, it will remain effective even if the battery is disconnected.
INTELLIGENT KEY REGISTRATION
Intelligent Key-ID registration is executed using the CONSULT-II. Up to 4 can be registered.
CAUTION:
- After a new Intelligent Key-ID is registered, be sure to check the function.
- When registering an additional Intelligent Key-ID, take any Intelligent Keys already registered and Intelligent Keys for any other vehicles out of the vehicle before starting.
CONSULT-II can be used to check and delete Intelligent Key-IDs.
For future information, see the CONSULT-II Operation Manual NATS.
STEERING LOCK UNIT REGISTRATION
Steering Lock Unit ID Registration
CAUTION:
- The method for registering a steering lock unit ID depends on the status of the steering lock unit and Intelligent Key unit (new or old unit).
- After registration is completed, press ignition knob with a portable unit in the vehicle so that it can be rotated, and confirm that it cannot be rotated even when ignition switch is pressed without a portable unit in the vehicle.
For further information, see the CONSULT-II Operation Manual NATS.
CAN Communication System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit
Refer to Information Bus.