Is there a way to start a 2001 is300 without any key fob chip? Wife broke the master but still have the key itself, she has been using the valet key but lost it and can't find it anywhere. Any help would be greatly appreciated.

 

You just need to program another key as a master with the master you have. They do not need a fob. To be a master. Just need to tell the ECU it is a master.

 

Hello,

If you still have internals of your Master key, refer to this thread, which describes the process of making a new key pretty inexpensively.

Hope this helps and best of luck!