Can anybody tell me the Start Procedure of a Car in General

Hi there. I am very new to Car Engineering World. basically i am a computer Programmer. I need to connect my Microcontroller (Arduino) to my Car and make a computer Software that can Start the Car (Start the Engine). Communication between the Microcontroller and Computer is not a problem for me, but the knowledge of connecting my Microcontroller to Car is very basic.

Can anybody give me some detailed info on how the Car Starting (Car Self may be) is done? How the wires are connected to Battery and how it makes the engine start?

Any diagram will be of great help.

Most cars have the same base sequence for starting however the location (routing) of the wires and color of the wires can be quite different depending on the make model and year of the car, I would suggest going to your local garage that has either mitchell or alldata and ask them for the specific wiring diagram

Good Luck
Phil

Have you tried what I suggested yet and if you have can you write back.
Thanx