Keyless Entry: Description and Operation

POWER SUPPLY AND GROUND
Power is supplied at all times
^ through 1O A fuse (No. (11), located in the fuse block in the HEC)
^ to multi-remote control relay-1 terminal (1) and multi-remote control relay-2 terminal (1).
Terminals (2) of multi-remote control relay-1 and relay-2 are connected to BCM terminal (11).
Power is supplied at all times
^ through 7.5 A fuse (No. (52) located in the fuse and fusible link box)
^ to theft warning relay terminal (1).
Theft warning relay terminal (2) is connected to BCM terminal (13)
Power is supplied at all times
^ through 15 A fuse (No. (37), located in the fuse block in the HEC)
^ to trunk lid opener actuator terminal (2).
Trunk lid opener actuator terminal (1) is connected to multi-remote control unit terminal (5)
BCM is connected to Multi-remote control unit, driver door control unit, passenger door control unit, rear LH door control unit and rear RH door control unit by DATA LINES A and B.
Power is supplied at all times
^ through 7.5 A fuse (No. (40), located in the fuse block in the HEC)
^ to key switch terminal (1).
When the key switch is in ON position (ignition key is inserted in key cylinder), power is supplied
^ through key switch terminal (2)
^ to BCM terminal (23)
When ignition switch is in ACC or ON position, power is supplied
^ through 7.5 A fuse (No. (19), located in the fuse block in the HEC)
^ to BCM terminal (28).
Power is supplied at all times
^ through 7.5 A fuse (No. (26), located in the fuse block in the HEC)
^ to interior lamp terminal (1)
When interior lamp is in DOOR position, ground is supplied
^ to interior lamp terminal (2)
^ through BCM terminal (5)
When any of the four door switches is in OPEN position, ground is supplied
^ to BCM terminal (21)
^ through door switches body grounds.
When the front door lock actuator LH (door unlock sensor) is in UNLOCKED position, ground is supplied
^ to driver door control unit (LCU01) terminal (4)
^ through front door lock actuator LH (door unlock sensor) terminal (2)
^ to front door lock actuator LH (door unlock sensor) terminal (4)
^ through body grounds (M13) and (M73).
When the front door lock actuator RH (door unlock sensor) is in UNLOCKED position, ground is supplied
^ to passenger door control unit (LCU02) terminal (4)
^ through front door lock actuator RH (door unlock sensor) terminal (2)
^ to front door lock actuator RH (door unlock sensor) terminal (4)
^ through body grounds (M13) and (M73).
When the rear door lock actuator LH and/or RH (door unlock sensor) is in UNLOCKED position, ground
is supplied
^ to rear LH and/or RH door control unit terminal (4)
^ through rear door lock actuator LH (door unlock sensor) terminal (2) and/or
^ through rear door lock actuator RH (door unlock sensor) terminal (2)
^ to rear door lock actuator LH (door unlock sensor) terminal (4) and/or
^ to rear door lock actuator RH (door unlock sensor) terminal (4)
^ through body grounds (B16) and (B19)
Remote controller signal input
^ through window antenna
^ to multi-remote control unit (LCU05) terminal (7).
The multi-remote control system controls operation of the
^ power door lock
^ trunk lid opener
^ interior lamp
^ panic alarm.

OPERATING PROCEDURE
Multi-remote control unit can receive signals from remote controller when key switch is in OFF position (key not in cylinder).

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 by 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 (2)
When multi-remote control unit (LCU05) receives a LOCK signal, ground is supplied
^ to multi-remote control relays-1 and -2 terminal (2)
^ through BCM terminal (11).
Multi-remote control relays are now energized and door lock actuators lock all doors. (Hazard warning lamps flash twice as a reminder.)
When an UNLOCK signal is sent from remote controller, door lock actuators unlock all doors. Refer to "POWER DOOR LOCK - IVMS".

Trunk lid opener operation
Ground is supplied
^ to trunk lid opener actuator terminal (1)
^ through multi-remote control unit terminal (5).
When power and ground are supplied, trunk lid opener actuator opens trunk lid.

Interior lamp operation
Multi-remote control system turns interior lamp ON or OFF when door switch is in CLOSED position (all doors closed).
For detailed description, refer to "INTERIOR LAMP".

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.
For detailed description, refer to "THEFT WARNING SYSTEM - IVMS".