Drivers side door not locking via remote

[XHXR6 36]

G'day everyone again, I just noticed this today but when I go to lock my XH it locks as usual but I can open the drivers side door when the car is supossed to be locked. I can still lock the door with the key but not the remote. Would this be a sign of a faulty actuator ? And if so how do I go about removing it ?. The passenger side door locks while the drivers side doesn't.

 

Cheers,

XHXR6

[XHXR6 36]

And would the actuator be the same as an el one ?