WORKS FOR: 1997 Ford, Linclon & Mercury; 1998 Navigator & Expedition
Originate New Master Key
1. Put new key into ignition and turn to (ON) position. Once the security light stops flashing (approx 15 min.), you will have 5 min. to begin step 2.
2. Turn the key from (ON) to (OFF) then back to (ON). The security light will flash for another 15 min.
3. Repeat step (2).
4.The security light will turn off for the 3rd time. The key is now programmed and all previous keys will be deleted from memory.