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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Door Lock) >> Power Door Lock Control System >> System Description

System Description

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
  1. POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION 

    The power door lock system locks / unlocks all the doors simultaneously.

    The door control switch sends lock / unlock request signals to the main body ECU. Then, the main body ECU sends these requests to lock motors in each door to lock / unlock all the doors simultaneously. Operating the driver or front passenger side door lock using a key sends lock / unlock request signals to the main body ECU.

  2. FUNCTION OF MAIN COMPONENT 
    FUNCTION OF MAIN COMPONENT

    Component Function
    Master switch Door control switch (for front driver door side) on master switch locks / unlocks all doors
    Door courtesy switch
    • One for each door
    • Detects door status (open or closed) and outputs data to integration relay
    • Turns on when door is open and off when door is closed
    Driver door lock
    • Built-in motor locks / unlocks door
    • Built-in door control switch (key-linked) detects door lock status (locked or unlocked) and outputs data to integration relay
    Passenger door, rear LH door, rear RH door and back door locks Built-in motor locks / unlocks doors
  3. DESCRIPTION 

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

    DOOR LOCK CONTROL FUNCTIONS CHART

    Function Outline
    Manual lock and unlock function Locks / unlocks all doors by door control switch lock operation (manual operation)
    Key-linked lock and unlock function
    • Linked with driver door key cylinder
    • Locks / unlocks all doors when lock / unlock operation is possible
    • Driver side door key-linked lock / unlock function does not operate when seat belt is fastened
    Key-linked 2-step unlock This function is provided to unlock driver's door by turning key cylinder first step and to unlock all doors by turning it second step. However, second step must be performed within three seconds.
    All doors lock with transmitter* Pressing transmitter's LOCK switch locks all doors
    All doors unlock with transmitter* Pressing transmitter's UNLOCK switch unlocks all doors

    HINT:

    *: Only for models with wireless door lock system