Keyless Entry: Description and Operation
CENTRAL DOOR LOCKING SYSTEMGENERAL DESCRIPTION
Some models are equipped with a radio-controlled keyless entry system. The main features are:
- Antenna and receiver are incorporated in the ETACS-ECU.
- ID code can be registered by using the scan tool (MUT-II).
- Transmitter is a key holder type, which incorporates the lock switch and unlock switch.
- The locking is answered back by two times' flashing of the room lamp, two times' flashing of the turn signal lamp, and one time sounding of the horn.
- The unlocking is answered back by illumination of the room tamp for 15 seconds and one time flashing of the turn signal lamp.
CENTRAL DOOR LOCKING SYSTEM OPERATION
When the driver's inside lock knob is locked or unlocked, the lock relay inside the ETACS-ECU turns on to lock or unlock all doors.
With all the doors locked, turning the key in the driver's door unlocks the door. Turning it again makes the door unlock relay close to send a signal for unlocking all doors.
When the door lock switch (built into the power window switch) is operated, the lock or unlock relay inside the ETACS-ECU is turned on to lock or unlock all doors.
KEYLESS ENTRY SYSTEM
If the RKE transmitter "LOCK" or "UNLOCK" button is pressed while the ignition key is removed, the doors can be locked or unlocked. If the doors are closed, the hazard warning lights, the dome light and the horn will operate due to answerback function. Because of the answerback function, the hazard warning lights flash twice, and the horn sounds once, the dome light flashes twice when the doors are locked. Meanwhile, when the doors are unlocked, the hazard warning lights flash and the dome light illuminates for 15 seconds. The hazard and the horn answerback functions can be cancelled by using the RKE transmitter.
The ECUs affect the functions and control of the keyless entry system.
ALL DOOR LOCK FUNCTION
OPERATING THE TRANSMITTER LOCK BUTTON
When the transmitter lock button is pressed, the ETACS-ECU energizes its door lock relay to operate all the door lock actuators for 0.25 second thus causing all doors to be locked.
OPERATING THE TRANSMITTER UNLOCK BUTTON PRESS TWICE
When the transmitter unlock button is pressed twice, the ETACS-ECU energizes its door unlock relay to operate the driver's door lock actuator and the other door lock actuators for 0.25 second each in succession. Then, the doors will be unlocked.
KEYLESS ENTRY HAZARD ANSWERBACK AND HORN ANSWERBACK FUNCTION
The hazard answerback and horn answerback function which facilities checking of lock or unlock operations even during day-time is provided. When the lock signal is input from the keyless entry transmitter to the ETACS-ECU, the hazard warning light flashes twice and horn sounds once. When the unlock signal is input, hazard warning light flashes once.
NOTE: Hazard answerback function can be disabled by the configuration function.
KEYLESS ENTRY HAZARD ANSWERBACK AND HORN ANSWERBACK FUNCTION
The hazard answerback and horn answerback function which facilities checking of lock or unlock operations even during daytime is provided. When the lock signal is input from the keyless entry transmitter to the ETACS-ECU, the hazard warning light flashes twice and horn sounds once. When the unlock signal is input, hazard warning light flashes once.
NOTE: Hazard answerback function can be disabled by the configuration function.