What is the system board of the computer?
The "primary circuit board" for a computer is called the "Motherboard". This is the board that contains the housing and sockets for all of the coprocessors, resistors, and circuit pathways that make your computer operate. This board also contains expansion slots, in which you insert expansion cards, extending the capabilities of the system.
System Board is also the Motherboard A motherboard is the central printed circuit board (PCB) in many modern computer and holds many of the crucial components of the system, while providing connectors for other peripherals. The motherboard is sometimes alternatively known as the main board, system board, or, on Apple computers, the logil board. It is also sometimes casually shortened to mobo.
More than likely your vehicle on board computer system has an issue. Or one of the sensors that show the door being closed is malfunctioning. If you hook up the car's on board system to the computer from the dealership, it should be able to tell the exact problem. It may just be that the on board computer needs to be reset.