If not if its the same then there is usually a sticking sometimes faulty lock mechanism on the van.
Transit van side door not locking.
Aside from the fuses your drive side power door lock may be failing to work because of a bad door lock relay system or alternatively the locking switch button itself is not malfunctioning and in need of replacement.
A great handyman site that specifies the above probable causes and more is the following link.
How to get into a transit when the key will not work.
The only way is to lock it from the inside using the knob on the door.
This happened on a 10 plate transit last year more than once.
The rear doors have a button of their own the side door wont lock or unlock using any of the buttons.
Im depressed transit van gonna cost me a marriage if i m not careful.
I have a problem with my lwb ford transit 350 i can open the drivers door with key i can t open the passager door i can only open and lock the sliding manually i can t access the back doors from inside or open it.
Ford transit central locking problem.
But this prevents it from been opened from outside.
The side door stays locked.
Sometimes when you press the unlock button on the keyfob to unlock the rear of the van only the back doors unlock.
The first thing to check is to make sure that any side door roller hasn t collapsed it is usually the middle roller that goes this results in the door dropping enough so that the contact pins for the locking motor that connect the wiring from the body to the door don t align any more.
How to get into a transit when the key will not work.
Try opening the rear door driver side and operate the inside handle.
When you then try to lock the van by pressing the lock button it relocks the rear doors and beeps the horn to say a door not closed.
A short video showing a 2015 ford transit with a strange central locking fault.
Then lock it all up as normal.
I have two fob but none worked if i try to open the back doors or reset the central locking by turning the the key on off 8 times in 10.