I have trouble locking/unlocking doors from the outside of 95 4-door Camry. I bought 2 new lock cylinders. I replaced the drivers side cylinder. I can lock the doors with the key, but I cannot unlock. I can lock and unlock with the power switch on the armrest. I'm now focusing on the door lock actuator. Can it fail to unlock, but still be able to lock with the key and yet work from the button on the armrest? Could this be a bad wire? Any tips or help would be greatly appreciated? I cannot find one on the Internet, apparently not manufactured as an aftermarket part.