ok the trans went out in my brother inlaws 03 corolla s. I put a used trans back in. the used trans didn't have a speed sensor and I forgot to take the one out of the other trans. ok so I got a new sensor, installed it and I still have no speedometer and a p0500 code. its a auto trans also. any help. corollas aren't something I work on much and don't really know anything about their systems. thanks.