I have a 1995 SC400 and bought a new OEM key which has been cut. Neither Lexus nor a Locksmith can get the key to accept the code. The Lexus dealer said the door actuator was not functioning properly so the key would not complete encoding. However, the power door function opens and closes. There are rare occasions when I can't open the door from the inside using the power lock without having to mess with it a bit. Is Lexus correct that the key won't program because of the actuator not functioning properly?