Well, it was kinda rough to turn and squeaking when turning to unlock. I had to remove the door panel, get behind the plastic lining, pull the clips holding the lock cylinder to the door handle..etc. Once I got it out, I had to take the spring out of the rear of the cylinder. Since I work at a honda dealership the parts were available to me, such as the lock wafers. I had to pull each wafer out, look and see the number on it and find a new one in the kit that we have. I took a wire brush to the cylinder to clean off all of the white corrosion on the inside. I lubed it with this lubricant we have called Power Lube (similar to WD-40), put all of the wafers back in the correct slots on the cylinder and that was that. :rockon: