POWER BACK DOOR SYSTEM SYSTEM DESCRIPTION

POWER BACK DOOR SYSTEM DESCRIPTION

1. The power back door system controls the power back door by automatically opening and closing the power back door with a motor.

   
   

   1. The power back door system operates only when the required conditions are satisfied.

   2. The multiplex network door ECU records the back door positions in the multiplex network door ECU.

      If the battery is disconnected, or the multiplex network door ECU fuse, power back door unit assembly set LH, power back door unit assembly set RH, back door lock assembly or multiplex network door ECU is removed and then reinstalled, the back door positions recorded in the multiplex network door ECU will be cleared.

      In such a case, initialization of the multiplex network door ECU is necessary. Refer to INITIALIZATION.

      Click here

   3. The multiplex network door ECU receives open/close request signals for the back door. The multiplex network door ECU controls the back door opening/closing operations by sending commands to the back door lock assembly and back door motor.

   4. The power back door system has various request signals: open/close request signal from the key switch, open/close request signal from the rear door control switch, open request signal from the back door opener switch assembly, open/close request signal from the back door control switch, and off request signal from the door control switch.

   5. The power back door system sounds a buzzer when the power back door starts operating. (for LHD)

   6. The power back door system sounds a buzzer and flashes the hazard warning lights when the power back door starts operating and intermittently while the power back door operating. (for RHD)

   7. The power back door system does not reverse the direction that the power back door is operating and stops if any switch is pressed during operation.

   8. The power back door system stops the operation of the power back door if any switch is pressed during operation.

   9. A pulse sensor and a power back door sensor assembly are used to prevent foreign objects from being caught in the door while the power back door is closing (jam protection function).

2. Function of main components:

   Component	Function
   Power back door warning buzzer	Sounds for 0.8 seconds when the rear door control switch, back door control switch, back door opener switch assembly or key switch is pressed. Sounds intermittently while the power back door is operating.* Sounds twice for 0.1 seconds to notify that the power back door has stopped operating when the jam protection function is activated. Sounds for 0.2 seconds when the back door opener switch assembly, key switch, back door control switch or rear door control switch is pressed while the power back door is operating.
   Hazard warning lights*	Flash twice to notify that the power back door will start operating when an open/close request signal is input while the back door is in the closed or fully open position.
   Door control switch	Disables the power back door system when the switch is off. Enables power back door system operation when the switch is on.
   Key switch	Pressing the switch causes the back door to open/close. Pressing the switch again causes the operation of the back door to stop.
   Rear door control switch	Transmits a power back door open/close request signal to the multiplex network door ECU via the main body ECU (multiplex network body ECU).
   Back door opener switch assembly	Transmits a power back door open request signal to the multiplex network door ECU via the certification ECU (smart key ECU assembly).
   Back door control switch	Transmits a power back door open/close signal to the multiplex network door ECU.

   
   

   • *: for RHD

POWER BACK DOOR OPERATION TIMING CHART