Hi.
My car vw fox vw fox 2006. BMD. 5Z. 1.2
purchased a wireless door lock (no alarm, simple locking and opening). Yellow, yellow/black, black is connected to car body (-). Among the wires coming out of the door, the locking and unlocking connections were connected. The red + is connected to the 5w radio fuse.

The radio fuse touches the electric sensor (pen), so even when the ignition is turned off, current flows and connects to the radio 5w fuse. However, when the remote control is activated, open continues to operate, but close operates only once and does not operate after that. What's the problem?