Van stood for a few weeks and the alarm went off for no reason.
Did this a few times over a couple of days
Then the central locking would lock then unlock, door open light on dash
No door open
Checked pins on slider and all ok
Other doors dont have a courtesy light switch but interior lights come on when opened
Magic
Faulty actuator or wiring to the door, seen them break were the loom goes from the A pillar into the door.
Have you got 2 battery's under the drivers seat, the rear one is used for starting the other one is for everything else
including the keys/remote open close. If its faulty it can cause all sorts probs.