Rear passenger door advice

[Kms93]

Has anyone eles had similar issues with their focus? 

Ours is a 2014 model, rear passanger door, window doesnt work off drivers control panel or door panel, cant always be opend from outside, doesnt lock as door can be opened and set car alarm off? 

What is the best thing to do? 

As its internitten problem, they garage wont cover on warranty! Any help appreciated!

[iantt]

either you or a garage need to check the wiring harness where it goes from door to body. may be bad connection at the connector. other than that it could be the passenger rear door control module intermitant fault( controls window and door lock)