sliding door

Vito Van Sliding Doors BOTH REPLACED from scrap yard and finally fitted in place, but the door won't lock and the interior light won't extinguish, despite the door soundly closed. I took the sensor pin set off my working doors and fitted them to the replacement sliding doors, I even swapped...

Quite randomly, I can be driving along and the right hand electric sliding door just unlocks itself and pops open a little. Thankfully it doesn't slide all the way back! Initially, I thought it was when I drove over a bump but that's not the case, it happens on the flat as well. It has to be...