Centralized Closing Opel Astra H

Good, first of all I present to me I am a Lerida boy who has an Opel Astra H 1.7 CDTI of 2005.
I have a small problem, the car does not close me with the command, or with the inner button of the centralized, apart from the fact that the rear gate opens when he wins someone someone can help me. The fuses are all reviewed. Thank you