Connect one on one with 0.
Transit connect side door wont lock.
If your drivers side door won t open try spraying some wd 40 into the area where the door connects with the lock inside the car.
Try opening the rear door driver side and operate the inside handle.
Transit side door wont lock even when button is pressed the sounds all other doors lock ok except the side door take the lock out and have a good look it could have a broken lever inside the lock the electrics are all built into the lock.
In my case i could have probably unhooked the yellow.
I had to take out the lock to repair and decided to show whats happening when rotary knob gets stuck.
Ok i suspect the reason the door latch won t lock us that the bcmii thinks the door is still open can you give me the reg number so i can clarify the wiring details regards brian.
This happened on a 10 plate transit last year more than once.
This will lubricate the lock.
I assume you still have the manual unlock lock turn knob at the inside back of the door opposite end to the handle if so when you turn it clockwise about an 8th of a turn the mechanism should unlock however if it dosent go round with a sharp click try pulling rattling the door handle as you apply force to the knob and the mechanism may spring into place if your lucky had several successfull openings like this.
What is involved in changing the wiring which goes into the rear off side back door on a 55 plate transit long wheel base van.