The speed sensitive locking on my 03 rangie is playing up.It would not lock for a while,started locking for a few days,then stopped again.All the doors will lock with the remote,but you have to unlock drivers door with key.Pushing the lock/unlock button on the dash will lock all the doors,but the drivers needs the handle pulled twice to unlock.Tried putting battery charger on overnight to see if that helped,but no.Sounds like i need a new drivers lock?