Is there an easy way to tell which door sensor says it's always open? The open door light warning is constantly on and also beeps, but which door?
Reading through these posts have got the rear of my van locked again. After swapping the two contacts over on the side doors I managed to come to the conclusion of the rear doors. I've only had this van a week and it turns out the back doors have been the problem as I found the switch loose in one of the doors. Does anyone have a clue where this switch is meant to live as have proved it's location isn't where found it lol?
Mercedes Vito 109 CDI 04
Same problem with my W639, at least I got to identify the problem with this fix. Only wire colours where blue-green and black-green. After inserting a bridge the door-open light went out, so it must be the locking sensor. Its a unit, so its not simple to replace the sensor. Keeping the bridge in was also not a good option.Perfection!
Unfortunately didn't get pics, but the procedure above, provided by hockeyanimal56, is fool-proof, even for me
No need to remove the lock, just pull out the wire clip. The wires that required bridging were the green/gray stripe and black/gray stripe. Single strand of copper wire, stays in place when the clip goes in. Vito is fooled into thinking rear door is always closed, so the door locking works and door open light doesn't come on anymore.
It'll be hard to find a cheaper and smarter hack than this one to solve the "door open" problem. Brilliant! 8)