You think it could be all 4 doors and the rear latch that has a bad actuator? I read somewhere else it could be a door electrical harness that can affect the rest of the vehicle but I am not too sure. I just hate to just throw parts at it is all.
I do not have a remote for the LC but when using either side of the driver or passenger door. I can unlock all doors but cannot lock them, I'd have to physically do it each time. When I try to lock I hear a tick, as if the relay is trying to do it but wont. Any advice is greatly appreciated.