Power Door Lock Control System System Description

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Door Lock. Lexus Gs430, Gs300. Uzs190 Grs190

  1. POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION

  1. FUNCTION OF MAIN COMPONENT

  1. SYSTEM DESCRIPTION

Power Door Lock Control System -- System Description



POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION

  1. The power door lock system locks/unlocks all doors.

    1. The door control switch of the multiplex network master switch and the driver door key cylinder use the BEAN line to send lock/unlock request signals through the multiplex network master switch to the multiplex network body ECU.
    1. The door control switch on the passenger door uses the BEAN line to send lock/unlock request signals through the multiplex network body ECU to the passenger door ECU.
    1. Upon receiving request signals, the multiplex network body ECU sends these signals to the door ECUs on each door using the BEAN. The door ECUs then lock/unlock each door.

FUNCTION OF MAIN COMPONENT

Components
Function
Multiplex network master switch assembly
Door control switch on multiplex network master switch locks/unlocks all doors
Door control switch assembly
Locks/unlocks all doors
Door courtesy light switch assembly
Turns on when door is open and off when door is closed
Outputs door status (open or closed) to multiplex network body ECU
Front door lock assembly (driver side)
  1. Built-in motor locks/unlocks door
  1. Built-in door control switch position (key-linked) detects door key cylinder (lock or unlock) and outputs data to driver door ECU
  1. Built-in position switch detected door status (locked or unlocked) and outputs data to driver door ECU.
    This switch turns off when door is locked and on when door is unlocked.
  1. Built-in double lock motor sets/unsets double locking system
  1. Built-in double lock position switch detects double locking system status (set or unset) and outputs data to driver door ECU.
    This switch turns off when system is set and turns on when system is unset.
Front door lock assembly (passenger side)
Rear door lock assembly LH
Rear door lock assembly RH
  1. Built-in motor locks/unlocks door
  1. 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.
  1. Built-in double lock motor sets/unsets double locking system
  1. Built-in double lock position switch detects double locking system status (set or unset) and outputs data to each door ECU.
    This switch turns off when system is set and turns on when system is unset.
Driver door ECU
Passenger door ECU
Rear door ECU LH
Rear door ECU RH
Receives lock/unlock request signal from multiplex network body ECU and locks/unlocks door

SYSTEM DESCRIPTION
The door control system has the following functions:

Function
Outline
Manual lock and unlock function
Locks/unlocks all doors by door control switch (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 body ECU has detected signal that is output from airbag sensor, body ECU will unlock all doors
2-step unlock function*1
Unlocks only driver side door by turning door key cylinder once and unlocks other doors by turning it twice
Double locking system*2
  1. This system prevents doors from being opened through inside door knob's operation.
    Doors cannot be opened either from inside or outside of vehicle.
  1. Pressing transmitter's LOCK switch twice from within 5 seconds activates this system and locks doors
    If battery of wireless door control is depleted, only driver's door can be opened by key
    However, theft deterrent system's alarm will sound
CAUTION:
Doors cannot be opened from inside of vehicle.
Never activate this system when someone is inside vehicle.
If this system is set accidentally, press transmitter's UNLOCK switch.
HINT:
*1: Default is ON (Click here ).
*2: w/ Double locking system