If you have a part number you can Google it.
If you don't have a part number you can go to a site like. mymoparparts.com and look at a diagram of the general location of the part and what it connects to.
Example of diagram above. - and part number and name will be listed.
Or ...watch some YouTube videos of the area of the car you took it from ....most likely you will see it disassembled during the video....