Keyless Entry: Description and Operation

The multi-remote control system controls operation of the
^ power window
^ power door lock
^ trunk lid opener
^ panic alarm
^ hazard reminder

OPERATING PROCEDURE
Multi-remote control unit can receive signals from remote controller when key switch is in OFF position (key not in cylinder). And it sends the signals to Body control module (BCM) and Local Control units (LCUs) as DATA LINES A and B.

Power door lock operation
Multi-remote control unit is connected to BCM, driver door control unit, passenger door control unit and rear LH/RH door control units as DATA LINES A and B.
^ Key switch OFF signal (ignition key is not in key cylinder)
Door switch CLOSE signal (all doors closed)
The two above signals are already input into BCM. At this point, multi-remote control unit receives a LOCK signal from remote controller.
Multi-remote control unit will then send a LOCK signal
^ from its terminals (1) and (3) (DATA LINES A and B)
^ to each door control unit terminal (1) and (3)
When multi-remote control unit (LCU07) receives a LOCK signal, ground is supplied
^ to multi-remote control relay terminal (2).
Multi-remote control relays are now energized and door lock actuators lock all doors. (Hazard warning lamps flash twice as a reminder - HAZARD REMINDER.)
When an UNLOCK signal is sent from remote controller, door lock actuators unlock all doors. For detailed description, refer to "POWER DOOR LOCK - LAN".

Trunk lid opener operation
Ground is supplied
^ to trunk lid opener actuator terminal (1)
^ through multi-remote control unit.
When power and ground are supplied, trunk lid opener actuator opens trunk lid.

Panic alarm operation
Multi-remote control system activates horn and headlamps intermittently when an alarm signal is sent from remote controller to multi-remote control system.