Passenger door started to play up and locking would be hit and miss. When it did lock the deadlock did not work. Meant to get on and fix it then couple of weeks ago it deadlocked and would not open. Spent a couple of weeks on the forums getting advice and ordered a new lock but new it was haste getting the lock out with the deadlock jammed. Decided to tackle it today after usual electrical checks showed no issue. When locking or unlocking the door lock was silent as if no power. Sat in the passenger seat and pulled the internal Handel and held it open and pressed the remote and the lock made a little noise. Released the handle and hit the remote and no noise again. Opened the internal handle and pressed the remote maybe 30 times and could hear some movement and then bingo the deadlock activated. Ran around the van a few times to celebrate and will change out the lock tomorrow. Leave it unlocked until then. My advice is try the same.. don't give up..