My friends has give me this bosch radar sensor 4L0907561 that I want to install on my car, but I donot know how to use it because there is no specification about it. Is there anyone would know what pin has what function or know how to connect it? Thanks a lot.

 

Get a service manual for the car it came out of and you'll have all the info.

 

It has not service manual

 

If you don't go buy a service manual for the car it came from there's nothing you can do. You haven't even told anyone what car it was from so how could we possibly begin to help?