Drivers door random locking
2011 Ford Ranger Sport 4x4 manual transmission. Drivers door randomly locks.
Sometimes by hitting door panel, other times just by opening door, some times while driving, sometimes just sitting there with engine off. Its been twice for service on this problem and all I get is a $120 diagnosis charge and no repairs done. It has even acted up on the technician while he was testing the system but he could not nail the problem down. The truck has not been in an accident since I've had it from new, before that I don't know. Any one with any ideas, I am not paying anymore diagnostic charges. Door always locks, never unlocks randomly. Other than that the remote works well, the manual locks work well, the lock button works well. I only use the drivers lock and never use the passanger lock so I don't know if when the drivers door random locks if it would lock the passanger side also as its alway locked. Sometimes it goes for weeks on end with no problems then it will trip alot for a day or two or a week, random.
HELP! Ford can'td fix it, can you?