System Description

FUNCTION OF MAIN COMPONENT

Components	Function
Master switch	Door control switch on master switch locks / unlocks all doors
Door control switch	Locks / unlocks all doors
Door courtesy light switch	Turns on when door is open and off when door is closed. Outputs door status (open or closed) to main body ECU
Front door lock LH	Built-in motor locks / unlocks door Built-in door control switch position (key-linked) detects door key cylinder (lock or unlock) and outputs data to front door ECU LH Built-in position switch detected door status (locked or unlocked) and outputs data to front door ECU LH. This switch turns off when door is locked and on when door is unlocked
Front door lock RH Rear door lock LH Rear door lock RH	Built-in motor locks / unlocks door Built-in position switch detected door status (locked or unlocked) and outputs data to door ECU. This switch turns off when door is locked and on when door is unlocked
Front Door ECU LH Front Door ECU RH Rear Door ECU LH Rear Door ECU RH	Receives lock / unlock request signal from main body ECU and locks / unlocks door

SYSTEM DESCRIPTION

The power door lock system locks / unlocks all doors.

The door control switch of the master switch uses the LIN line to send lock / unlock request signals to the main body ECU.
The driver door key cylinder switch uses the CAN line to send lock / unlock request signals through the front door ECU LH to the main body ECU.
The door control switch on the passenger door uses the CAN line to send lock / unlock request signals through the front door ECU RH to the main body ECU.

Upon receiving request signals, the main body ECU sends these signals to the door ECUs on each door using the CAN. The door ECUs then lock / unlock each door.

The door control system has the following functions:

DOOR CONTROL SYSTEM FUNCTION

Function	Outline
Manual lock and unlock function	Locks / unlocks all doors by door control switch's lock operation (manual operation)
Key-linked lock and unlock function	Linked with door key cylinder Locks / unlocks all doors when lock/unlock operation is possible
Key lock-in prevention function	When door control transmitter is in vehicle, performing door lock operation with lock switch on outer handle will not lock door and will sound a buzzer
Collision door lock release	If SRS has been deployed and main body ECU has detected signal that is output from airbag sensor, main body ECU will unlock all doors
2-step unlock function	Unlocks only driver side door by turning key cylinder once and unlocks other doors by turning it twice
Shift-linked automatic door lock	When conditions listed below are all met, this function causes all doors to automatically lock Engine switch on (IG) All doors are closed Shift lever is moved out of P Doors are unlocked