I will look further, But I think this will work,
The pdf manual linked above works for me - I have a 1997 SC 400...
Be sure to follow it exactly as written - should take you no more than 10 seconds
Thanks dcfish!
No problem, Just want to help out fellow lexus owners keep there cars up to snuff.
Here is a key transponder application guide for all to use. Enjoy!!!
key_transponder_application_guide.pdf