Heater stopped working
 

Ok so I'm a girl, and trying to fix my heater. This plug came out from under my dash and I can't find what it plugs to.
https://cimg4.ibsrv.net/gimg/www.maz...31c889c3c0.jpg
This happened once before and the man who I bought this car from fixed it in no time. I wish I would have watched what he did.
https://cimg5.ibsrv.net/gimg/www.maz...cf14a4d8a3.jpg
https://cimg6.ibsrv.net/gimg/www.maz...b2abc717ed.jpg
https://cimg7.ibsrv.net/gimg/www.maz...ce3eaacc26.jpg

Ok , 1st did the Heater stop when the plug fell out? , and by the heater not working do you mean the Fan/Blower .

The only thing i can suggest is to get a torch and climb under the dash (move the seats back) and try to have a good look for a empty socket that that plug will fit in to , i'm not even sure what side those pictures are at (LHD out here) but the blower/fan is on our LHS opposite to the driver in the passenger side sort of under/behind the Glove Box .
Good luck .

I'm sorry all that's going wrong for you. Unfortunately you gave us precisely 0 information to even slightly begin to guess what's going on with the system. No type, model, error codes or symptoms. Put in a service call and have them check it all out is all anyone will be able to advise based 192.168.100.1 192.168.1.1 off the post