System Description

POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION
The power door lock system locks/unlocks all the doors simultaneously.

The master switch (on the driver side door) and the door control switch (on the passenger side door) send lock/ unlock request signals to the body ECU. Then, the body ECU sends these requests to the lock motors in each

door to lock/unlock all the doors simultaneously. Operating the driver side door lock using a key sends lock/unlock request signals to the door lock control relay. The driver side door key-linked lock function has an optional unlock method called the 2-step unlock function.

FUNCTION OF MAIN COMPONENT

Components	Function
Master switch	Door control switch on master switch assembly locks/unlocks all doors
Door control switch	Door control switch on passenger side door locks/unlocks all doors
Door courtesy switch	Placed on each door. Detects door status (open or closed) and outputs data to body ECU. Turns on when door is open and turns off when door is closed.
Driver side door lock	Built-in motor locks/unlocks door Built-in door control switch (key-linked) detects door key operation's door status (locked or unlocked) and outputs data to body ECU Built-in position switch detects door status (locked or unlocked) and outputs data to body ECU. This switch turns off when door is locked and turns on when door is unlocked.
Passenger side door lock Rear LH door lock Rear RH door lock	Built-in motor locks/unlocks door Built-in position switch detects door status (locked or unlocked) and outputs data to body ECU. This switch turns off when door is locked and turns on when door is unlocked.

SYSTEM FUNCTION

This system is controlled by the body ECU. The body ECU outputs signals to each door lock motor. The door lock control system in the PRIUS has the following functions:

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 key is inserted in key slot with driver side door open and door lock operation is performed, all doors will be unlocked.
Manual unlock prohibition function	Performing door lock operation with transmitter, mechanical key or smart lock function* disables unlock operation by door lock control switch
2-step unlock function	Unlock only driver side door by turning door key cylinder once and unlock remaining doors by turning it twice
All doors lock with transmitter	Pressing transmitter's lock switch locks all doors
All doors unlock with transmitter	Pressing transmitter's unlock switch once unlocks driver side door and pressing it again within 3 seconds unlocks remaining doors
Entry unlock function*	User can unlock all doors by keeping smart key in his/her possession and touching outside door handle
Entry lock function*	User can lock all doors by keeping smart key in his/her possession and pressing lock switch on outside door handle

HINT:

*: w/ Smart key system