Trunk Lid Open Function

When BCM detects that trunk lid opener request switch is pressed, it activates outside key antenna (rear bumper) and inside key antenna to transmit request signals to the Intelligent Key. And then, BCM checks that the Intelligent Key is near trunk lid.
If the Intelligent Key is within the outside key antenna detection area, it receives the request signal and transmits the key ID signal to BCM.
BCM receives the key ID signal via remote keyless entry receiver and compares it with the registered key ID.
BCM transmits the trunk lid open request signal to trunk closure assembly and sounds Intelligent Key warning buzzer 4 times at the same time (buzzer reminder). However, buzzer reminder does not operate when ignition switch is in the ON position.
When trunk closure control unit, integrated into the trunk closure assembly, receives the trunk lid open request signal, it operates trunk closure motor to release the interlocking of trunk lid lock and trunk lid striker, and then trunk lid opens.
To prevent performing open operation due to unintended operation of trunk lid opener request switch by owner, the trunk lid open function is activated when trunk closure control unit receives the trunk lid open request signal from BCM for more than 0.2 sec.
After closure control unit detects that the trunk is opened, it stops the trunk closure motor and then operates in reverse direction to the neutral position.
The trunk closure control unit transmits trunk lid open/closed status signal to BCM.
If trunk lid open operation stops accidentally (because of mislatching, etc.), trunk lid can be opened mechanically using trunk key cylinder.
For trunk lid auto closure system, refer to "SYSTEM DESCRIPTION ".