BACK DOOR CLOSER SYSTEM SYSTEM DESCRIPTION


  1. BACK DOOR CLOSER SYSTEM DESCRIPTION


    1. Operating the back door opener switch assembly (open switch) when the back door is fully closed sends a request signal to the multiplex network door ECU. The multiplex network door ECU outputs a latch release signal to the back door lock assembly in response to the signal.

    2. The latch can be released only when the back door is unlocked.

    3. 3 switches are built into the back door lock assembly. The multiplex network door ECU monitors the status of each switch. The multiplex network door ECU controls latch "release/close" operations in response to the signal from each switch.

      Switch Function
      Latch courtesy switch Detects whether back door is open or closed. Turns on when back door is open or ajar and turns off when it is fully closed.
      Half-latch switch Detects when the back door lock motor is in the half latch position or full latch position. Turns on when the back door lock motor is in the open latch position.
      Position switch Detects the initial (neutral) position of the driven gear of the back door lock motor. Turns on when the driven gear is in the neutral position and turns off when the driven gear is in any position other than neutral.

  2. FUNCTION OF MAIN COMPONENTS

    Component Function
    Multiplex network door ECU Controls the back door closer system in accordance with signals received from the back door lock assembly.
    Back door lock assembly Receives operation signals from the multiplex network door ECU to open/close the back door.

  3. CONSTRUCTION AND OPERATION


    1. Closing Operation

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    2. Opening Operation

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