POWER DOOR LOCK CONTROL SYSTEM SYSTEM DESCRIPTION


  1. POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION


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

      The main body ECU (multiplex network body ECU) receives lock/unlock request signals from a door control switch or the driver door key lock and unlock switch. Then, the main body ECU (multiplex network body ECU) sends these request signals to the door lock motors in each door to lock/unlock each door in response to the inputs.

  2. FUNCTION OF MAIN COMPONENTS

    Component Function

    Multiplex network master switch assembly


    • Door control switch

    		 Driver door control switch on the multiplex network master switch assembly locks or unlocks all doors.

    Power window regulator switch assembly


    • Door control switch

    		 Front passenger door control switch on the power window regulator switch assembly locks or unlocks all doors.
    Door courtesy light switch assembly

    • Placed on each door.

    • Detects the door status (open or closed) and outputs data to the main body ECU (multiplex network body ECU).

    • Turns on when the door is opened and turns off when the door is closed.

    Front door lock with motor assembly LH*1

    Front door lock with motor assembly RH*2

    • Built-in motor locks or unlocks the door.

    • Built-in key lock and unlock switch (key-linked) detects the door key operation status (locked or unlocked) and outputs a signal to the main body ECU (multiplex network body ECU).

    • Built-in unlock detection switch detects the door status (locked or unlocked) and outputs a signal to the main body ECU (multiplex network body ECU). This switch turns off when the door is locked and turns on when the door is unlocked.

    Front door lock with motor assembly RH*1

    Front door lock with motor assembly LH*2

    Rear door lock assembly LH/RH

    • Has a built-in motor that locks or unlocks the door.

    • Built-in unlock detection switch detects the door status (locked or unlocked) and outputs a signal to the main body ECU (multiplex network body ECU). This switch turns off when the door is locked and turns on when the door is unlocked.
    Back door lock assembly Built-in motor locks or unlocks the door.
    Door control battery*3

    • When an impact is detected, a relay inside the door control battery is operated to switch the power source of the door lock with motor assemblies from the vehicle battery to the door control battery.

    • The door control battery supplies power to the main body ECU (multiplex network body ECU) when the vehicle battery and/or power source circuit of the vehicle battery are malfunctioning.

    • *1: for LHD

    • *2: for RHD

    • *3: w/o Canister Pump Module with Door Ajar Warning Buzzer Function

  3. SYSTEM FUNCTION


    1. This system is controlled by the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) outputs signals to each door lock motor. The power door lock control system has the following functions:

      Function Outline
      Manual lock and unlock function This function can lock or unlock all of the doors by the door control switch operation.
      Key-linked lock and unlock function This function, which is linked with the mechanical key cylinder, can lock or unlock all of the doors when a lock or unlock operation is performed.
      Manual unlock prohibition function

      When the condition below is met, unlocking the vehicle using the door control switch will be prohibited:


      • The doors are locked using a key-linked operation, wireless key operation or entry operation with all of the doors closed.
      Key lock-in prevention function When the key is in the vehicle, performing the door lock operation will not lock the door.
      Key-linked 2-step unlock function*1 Unlocks only the driver door by turning the key cylinder once and unlocks all of the doors by turning it twice.
      Collision door lock release If the SRS has been deployed and the main body ECU (multiplex network body ECU) has detected the signal that is output from the airbag sensor assembly, the main body ECU (multiplex network body ECU) will unlock all doors.
      Shift-linked automatic door lock function*2

      When the conditions listed below are met consecutively, this function causes all of the doors to be automatically locked:


      • all of the doors are closed.

      • Engine switch is on (IG).

      • With the shift lever in P, the shift lever is moved to any position other than P.

      • Any of the doors is unlocked.
      Speed-sensitive automatic door lock function*2

      When the conditions listed below are met consecutively, this function causes all of the doors to be automatically locked:


      • Vehicle speed is higher than approximately 20 km/h (12 mph).

      • all of the doors are closed.

      • Any of the doors is unlocked.
      Shift-linked automatic door unlock function*2

      When the conditions listed below are met consecutively, this function causes all of the doors to be automatically unlocked:


      • Engine switch is on (IG).

      • With the shift lever in any position other than P, the shift lever is moved to P.
      Driver door-linked automatic door unlock*2 all of the doors are unlocked automatically when the driver door is opened within approximately 43 seconds of the engine switch being turned from on (IG) to off.
      Main/sub power source switch function*3 When an impact is detected, a relay inside the door control battery is operated to switch the power source of the door lock with motor assemblies from the vehicle battery to the door control battery.
      Double locking function*4

      • This function prevents the doors from being opened through the operation of the inside door knobs. Thus, the doors cannot be opened either from inside or outside the vehicle.

      • To lock the doors with this function, pressing the electrical key transmitter sub-assembly lock switch twice within 5 seconds or touching the lock sensor on the outside door handle twice while holding the key within 5 seconds activates the double locking function. However, as an emergency unlocking maneuver, only the driver door can be unlocked with a key.

      Note

      Never activate the double locking function when there are people in the vehicle because the doors cannot be opened from the inside. If the doors are locked by accident, unlock the door by using the wireless unlock operation or entry unlock operation.

      • *1: w/ Key-linked 2-step Unlock Function

      • *2: w/ Auto Lock Function

      • *3: w/o Canister Pump Module with Door Ajar Warning Buzzer Function

      • *4: w/ Double Locking System