title: CAN Bus programming/control of car's control units?
body: <p>I'm beginning to learn about programming cars.  I read up on CAN programming and just need to know where i can find information about the control units of each car model.</p>
  
  <p>For example:
  I wanna start programming/controlling a 01 chevy blazer.   How do i find a list of the control units inside the car, and more importantly, where do i find the information like each unit's address and it's own specific communication protocol (paraphrase: how do i find out what to write in the data field to get the doors to lock or unlock) </p>
  
  <p>in short I know how to communicate with the control units, i just don't know what to say to them </p>