Key Initialization: Notes
WARNING: This page is about a different car, the 1997 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Key initialization erases all keys in memory. This provides reprogramming of PATS module in the case where all programmed keys were lost, or to remove any key codes from memory. This procedure also allows for reprogramming of system if ignition lock assembly requires replacement.