steering angle sensor

Good evening,
I’m putting together a project and need to use a steering angle sensor (a General Motors one), but do not know how to turn it on. Could anyone tell me how to make it work in a mega arduino?

The sensor is listed in the link:
http://pt.aliexpress.com/item/96985867-Angle-sensor-For-Buick-Chevy/32532832713.html

This site has it taken apart, but I own I know you have CAN communication, different sensor he dismounts: