Item	Function
BCM	Controls the door lock function and room lamp function.
Door lock and unlock switch	Inputs lock or unlock signal to BCM.
Door lock actuator	Receives lock/unlock signal from BCM and locks/unlocks each door.
Front door lock assembly (unlock sensor)	Detects door lock condition of driver door.
Door switch	Inputs door open/close condition to BCM.
Key slot	Inputs key insert/remove signal to BCM.
Combination meter	Receives buzzer signal from BCM via CAN communication line, and sounds the buzzer. Transmits vehicle speed signal to CAN communication line.
TCM	Transmits shift position signal to BCM via CAN communication line.